Merge pull request #38 from exstake/remove-currency-model

remove currency model and all references

app/controllers/admin/currencies_controller.rb

@@ -1,8 +0,0 @@
-# frozen_string_literal: true
-module Admin
-  class CurrenciesController < Admin::ApplicationController
-    def valid_action?(name, resource = resource_class)
-      ["new", "edit", "destroy"].exclude?(name.to_s) && super
-    end
-  end
-end

app/dashboards/balance_dashboard.rb

@@ -10,7 +10,6 @@ class BalanceDashboard < Administrate::BaseDashboard
   # on pages throughout the dashboard.
   ATTRIBUTE_TYPES = {
     user: Field::BelongsTo,
-    currency: Field::BelongsTo,
     id: Field::Number,
     amount: Field::String.with_options(searchable: false),
     created_at: Field::DateTime,
@@ -22,16 +21,16 @@ class BalanceDashboard < Administrate::BaseDashboard
   #
   # By default, it's limited to four items to reduce clutter on index pages.
   # Feel free to add, remove, or rearrange items.
-  COLLECTION_ATTRIBUTES = [:user, :currency, :id, :amount].freeze
+  COLLECTION_ATTRIBUTES = [:user, :id, :amount].freeze
 
   # SHOW_PAGE_ATTRIBUTES
   # an array of attributes that will be displayed on the model's show page.
-  SHOW_PAGE_ATTRIBUTES = [:user, :currency, :id, :amount, :created_at, :updated_at].freeze
+  SHOW_PAGE_ATTRIBUTES = [:user, :id, :amount, :created_at, :updated_at].freeze
 
   # FORM_ATTRIBUTES
   # an array of attributes that will be displayed
   # on the model's form (`new` and `edit`) pages.
-  FORM_ATTRIBUTES = [:user, :currency, :amount].freeze
+  FORM_ATTRIBUTES = [:user, :amount].freeze
 
   # COLLECTION_FILTERS
   # a hash that defines filters that can be used while searching via the search

app/dashboards/buy_crypto_order_dashboard.rb

@@ -10,7 +10,6 @@ class BuyCryptoOrderDashboard < Administrate::BaseDashboard
   # on pages throughout the dashboard.
   ATTRIBUTE_TYPES = {
     user: Field::BelongsTo,
-    currency: Field::BelongsTo,
     id: Field::Number,
     status: Field::Enumerize,
     paid_amount_cents: Field::Number,
@@ -24,17 +23,16 @@ class BuyCryptoOrderDashboard < Administrate::BaseDashboard
   #
   # By default, it's limited to four items to reduce clutter on index pages.
   # Feel free to add, remove, or rearrange items.
-  COLLECTION_ATTRIBUTES = [:user, :currency, :id, :status].freeze
+  COLLECTION_ATTRIBUTES = [:user, :id, :status].freeze
 
   # SHOW_PAGE_ATTRIBUTES
   # an array of attributes that will be displayed on the model's show page.
-  SHOW_PAGE_ATTRIBUTES = [:user, :currency, :id, :status, :paid_amount_cents, :received_amount, :created_at,
+  SHOW_PAGE_ATTRIBUTES = [:user, :id, :status, :paid_amount_cents, :received_amount, :created_at, :updated_at].freeze
-                          :updated_at,].freeze
 
   # FORM_ATTRIBUTES
   # an array of attributes that will be displayed
   # on the model's form (`new` and `edit`) pages.
-  FORM_ATTRIBUTES = [:user, :currency, :status, :paid_amount_cents, :received_amount].freeze
+  FORM_ATTRIBUTES = [:user, :status, :paid_amount_cents, :received_amount].freeze
 
   # COLLECTION_FILTERS
   # a hash that defines filters that can be used while searching via the search

app/dashboards/currency_dashboard.rb

@@ -1,52 +0,0 @@
-# frozen_string_literal: true
-require "administrate/base_dashboard"
-
-class CurrencyDashboard < Administrate::BaseDashboard
-  # ATTRIBUTE_TYPES
-  # a hash that describes the type of each of the model's fields.
-  #
-  # Each different type represents an Administrate::Field object,
-  # which determines how the attribute is displayed
-  # on pages throughout the dashboard.
-  ATTRIBUTE_TYPES = {
-    id: Field::Number,
-    name: Field::String,
-    created_at: Field::DateTime,
-    updated_at: Field::DateTime,
-  }.freeze
-
-  # COLLECTION_ATTRIBUTES
-  # an array of attributes that will be displayed on the model's index page.
-  #
-  # By default, it's limited to four items to reduce clutter on index pages.
-  # Feel free to add, remove, or rearrange items.
-  COLLECTION_ATTRIBUTES = [:id, :name, :created_at, :updated_at].freeze
-
-  # SHOW_PAGE_ATTRIBUTES
-  # an array of attributes that will be displayed on the model's show page.
-  SHOW_PAGE_ATTRIBUTES = [:id, :name, :created_at, :updated_at].freeze
-
-  # FORM_ATTRIBUTES
-  # an array of attributes that will be displayed
-  # on the model's form (`new` and `edit`) pages.
-  FORM_ATTRIBUTES = [:name].freeze
-
-  # COLLECTION_FILTERS
-  # a hash that defines filters that can be used while searching via the search
-  # field of the dashboard.
-  #
-  # For example to add an option to search for open resources by typing "open:"
-  # in the search field:
-  #
-  #   COLLECTION_FILTERS = {
-  #     open: ->(resources) { resources.where(open: true) }
-  #   }.freeze
-  COLLECTION_FILTERS = {}.freeze
-
-  # Overwrite this method to customize how currencies are displayed
-  # across all pages of the admin dashboard.
-  #
-  def display_resource(currency)
-    currency.name
-  end
-end

app/dashboards/sell_crypto_order_dashboard.rb

@@ -10,7 +10,6 @@ class SellCryptoOrderDashboard < Administrate::BaseDashboard
   # on pages throughout the dashboard.
   ATTRIBUTE_TYPES = {
     user: Field::BelongsTo,
-    currency: Field::BelongsTo,
     id: Field::Number,
     status: Field::Enumerize,
     paid_amount: Field::String.with_options(searchable: false),
@@ -24,17 +23,17 @@ class SellCryptoOrderDashboard < Administrate::BaseDashboard
   #
   # By default, it's limited to four items to reduce clutter on index pages.
   # Feel free to add, remove, or rearrange items.
-  COLLECTION_ATTRIBUTES = [:user, :currency, :id, :status].freeze
+  COLLECTION_ATTRIBUTES = [:user, :id, :status].freeze
 
   # SHOW_PAGE_ATTRIBUTES
   # an array of attributes that will be displayed on the model's show page.
-  SHOW_PAGE_ATTRIBUTES = [:user, :currency, :id, :status, :paid_amount, :received_amount_cents, :created_at,
+  SHOW_PAGE_ATTRIBUTES = [:user, :id, :status, :paid_amount, :received_amount_cents, :created_at,
                           :updated_at,].freeze
 
   # FORM_ATTRIBUTES
   # an array of attributes that will be displayed
   # on the model's form (`new` and `edit`) pages.
-  FORM_ATTRIBUTES = [:user, :currency, :status, :paid_amount, :received_amount_cents].freeze
+  FORM_ATTRIBUTES = [:user, :status, :paid_amount, :received_amount_cents].freeze
 
   # COLLECTION_FILTERS
   # a hash that defines filters that can be used while searching via the search

app/dashboards/stake_order_dashboard.rb

@@ -10,7 +10,6 @@ class StakeOrderDashboard < Administrate::BaseDashboard
   # on pages throughout the dashboard.
   ATTRIBUTE_TYPES = {
     user: Field::BelongsTo,
-    currency: Field::BelongsTo,
     id: Field::Number,
     pool_name: Field::String,
     status: Field::Enumerize,
@@ -24,16 +23,16 @@ class StakeOrderDashboard < Administrate::BaseDashboard
   #
   # By default, it's limited to four items to reduce clutter on index pages.
   # Feel free to add, remove, or rearrange items.
-  COLLECTION_ATTRIBUTES = [:user, :currency, :id, :pool_name].freeze
+  COLLECTION_ATTRIBUTES = [:user, :id, :pool_name].freeze
 
   # SHOW_PAGE_ATTRIBUTES
   # an array of attributes that will be displayed on the model's show page.
-  SHOW_PAGE_ATTRIBUTES = [:user, :currency, :id, :pool_name, :status, :amount, :created_at, :updated_at].freeze
+  SHOW_PAGE_ATTRIBUTES = [:user, :id, :pool_name, :status, :amount, :created_at, :updated_at].freeze
 
   # FORM_ATTRIBUTES
   # an array of attributes that will be displayed
   # on the model's form (`new` and `edit`) pages.
-  FORM_ATTRIBUTES = [:user, :currency, :pool_name, :status, :amount].freeze
+  FORM_ATTRIBUTES = [:user, :pool_name, :status, :amount].freeze
 
   # COLLECTION_FILTERS
   # a hash that defines filters that can be used while searching via the search

app/graphql/inputs/create_buy_crypto_order_attributes_input.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 module Inputs
   class CreateBuyCryptoOrderAttributesInput < Types::BaseInputObject
-    argument :currency_id, ID, required: true
     argument :amount_cents, Integer, "Amount to be paid", required: true
   end
 end

app/graphql/inputs/create_sell_crypto_order_attributes_input.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 module Inputs
   class CreateSellCryptoOrderAttributesInput < Types::BaseInputObject
-    argument :currency_id, ID, required: true
     argument :amount, String, "Amount to be paid", required: true
   end
 end

app/graphql/mutations/create_buy_crypto_order.rb

@@ -6,8 +6,6 @@ module Mutations
     argument :order, Inputs::CreateBuyCryptoOrderAttributesInput, required: true
 
     def resolve(order:)
-      currency_id = decode_id(order[:currency_id])
-
       ActiveRecord::Base.transaction do
         current_user
           .fiat_balance
@@ -15,7 +13,6 @@ module Mutations
 
         record = BuyCryptoOrder.create!(
           paid_amount_cents: order[:amount_cents],
-          currency_id: currency_id,
           user_id: current_user.id,
         )
 

app/graphql/mutations/create_sell_crypto_order.rb

@@ -6,18 +6,15 @@ module Mutations
     argument :order, Inputs::CreateSellCryptoOrderAttributesInput, required: true
 
     def resolve(order:)
-      currency_id = decode_id(order[:currency_id])
       amount = BigDecimal(order[:amount])
 
       ActiveRecord::Base.transaction do
         current_user
-          .balances
+          .balance
-          .find_by!(currency_id: currency_id)
           .withdrawal!(amount)
 
         record = SellCryptoOrder.create!(
           paid_amount: amount,
-          currency_id: currency_id,
           user_id: current_user.id,
         )
 

app/graphql/mutations/create_stake_order.rb

@@ -6,18 +6,15 @@ module Mutations
     argument :order, Inputs::CreateStakeOrderAttributesInput, required: true
 
     def resolve(order:)
-      currency_id = Currency.find_by!(name: "CAKE").id
       amount = BigDecimal(order[:amount])
 
       ActiveRecord::Base.transaction do
         current_user
-          .balances
+          .balance
-          .find_by!(currency_id: currency_id)
           .withdrawal!(amount)
 
         record = StakeOrder.create!(
           amount: amount,
-          currency_id: currency_id,
           pool_name: order[:pool_name],
           user_id: current_user.id,
         )

app/graphql/mutations/create_stake_remove_order.rb

@@ -6,14 +6,12 @@ module Mutations
     argument :order, Inputs::CreateStakeOrderAttributesInput, required: true
 
     def resolve(order:)
-      currency_id = Currency.find_by!(name: "CAKE").id
       amount = -BigDecimal(order[:amount])
 
       ActiveRecord::Base.transaction do
         record = StakeOrder.find_or_initialize_by(
           pool_name: order[:pool_name],
           user_id: current_user.id,
-          currency_id: currency_id,
           status: :processing
         )
 

app/graphql/types/balance_type.rb

@@ -8,10 +8,5 @@ module Types
 
     field :id, ID, null: false
     field :amount, String, null: false
-
-    field :currency, CurrencyType, null: false
-    def currency
-      dataloader.with(Dataloader::Source, Currency).load(object.currency_id)
-    end
   end
 end

app/graphql/types/buy_crypto_order_type.rb

@@ -7,12 +7,6 @@ module Types
     graphql_name "BuyCryptoOrder"
 
     field :id, ID, null: false
-
-    field :currency, CurrencyType, null: false
-    def currency
-      dataloader.with(Dataloader::Source, Currency).load(object.currency_id)
-    end
-
     field :status, ProcessStatusEnum, null: false
     field :paid_amount_cents, Integer, null: false
     field :received_amount, String, null: true

app/graphql/types/currency_type.rb

@@ -1,12 +0,0 @@
-# frozen_string_literal: true
-module Types
-  class CurrencyType < Types::BaseObject
-    implements GraphQL::Types::Relay::Node
-    global_id_field :id
-
-    graphql_name "Currency"
-
-    field :id, ID, null: false
-    field :name, String, null: false
-  end
-end

app/graphql/types/query_type.rb

@@ -10,16 +10,6 @@ module Types
       context[:current_user]
     end
 
-    field :balances, BalanceType.connection_type, null: false
-    def balances
-      Pundit.policy_scope(current_user, Balance)
-    end
-
-    field :fiat_balances, FiatBalanceType.connection_type, null: false
-    def fiat_balances
-      Pundit.policy_scope(current_user, FiatBalance)
-    end
-
     field :sell_crypto_orders, SellCryptoOrderType.connection_type, null: false
     def sell_crypto_orders
       Pundit.policy_scope(current_user, SellCryptoOrder)

app/graphql/types/sell_crypto_order_type.rb

@@ -7,12 +7,6 @@ module Types
     graphql_name "SellCryptoOrder"
 
     field :id, ID, null: false
-
-    field :currency, CurrencyType, null: false
-    def currency
-      dataloader.with(Dataloader::Source, Currency).load(object.currency_id)
-    end
-
     field :status, ProcessStatusEnum, null: false
     field :paid_amount, String, null: false
     field :received_amount_cents, Integer, null: true

app/graphql/types/user_type.rb

@@ -11,5 +11,8 @@ module Types
     field :first_name, String, null: false
     field :last_name, String, null: false
     field :wallet_address, String, null: true
+
+    field :balance, BalanceType, null: false
+    field :fiat_balance, FiatBalanceType, null: false
   end
 end

app/graphql/x_stake_schema.rb

@@ -6,8 +6,6 @@ class XStakeSchema < GraphQL::Schema
 
   def self.resolve_type(abstract_type, obj, ctx)
     case obj
-    when Currency
-      Types::CurrencyType
     when Balance
       Types::BalanceType
     when FiatBalance

app/javascript/__generated__/schema.graphql

@@ -1,42 +1,10 @@
 type Balance implements Node {
   amount: String!
-  currency: Currency!
   id: ID!
 }
 
-"""
-The connection type for Balance.
-"""
-type BalanceConnection {
-  """
-  A list of edges.
-  """
-  edges: [BalanceEdge!]!
-
-  """
-  Information to aid in pagination.
-  """
-  pageInfo: PageInfo!
-}
-
-"""
-An edge in a connection.
-"""
-type BalanceEdge {
-  """
-  A cursor for use in pagination.
-  """
-  cursor: String!
-
-  """
-  The item at the end of the edge.
-  """
-  node: Balance!
-}
-
 type BuyCryptoOrder implements Node {
   createdAt: ISO8601DateTime!
-  currency: Currency!
   id: ID!
   paidAmountCents: Int!
   receivedAmount: String
@@ -79,7 +47,6 @@ input CreateBuyCryptoOrderAttributesInput {
   Amount to be paid
   """
   amountCents: Int!
-  currencyId: ID!
 }
 
 """
@@ -114,7 +81,6 @@ input CreateSellCryptoOrderAttributesInput {
   Amount to be paid
   """
   amount: String!
-  currencyId: ID!
 }
 
 """
@@ -206,47 +172,12 @@ type CreateStakeRemoveOrderPayload {
   order: StakeOrder
 }
 
-type Currency implements Node {
-  id: ID!
-  name: String!
-}
-
 type FiatBalance implements Node {
   amountCents: Int!
   amountCurrency: String!
   id: ID!
 }
 
-"""
-The connection type for FiatBalance.
-"""
-type FiatBalanceConnection {
-  """
-  A list of edges.
-  """
-  edges: [FiatBalanceEdge!]!
-
-  """
-  Information to aid in pagination.
-  """
-  pageInfo: PageInfo!
-}
-
-"""
-An edge in a connection.
-"""
-type FiatBalanceEdge {
-  """
-  A cursor for use in pagination.
-  """
-  cursor: String!
-
-  """
-  The item at the end of the edge.
-  """
-  node: FiatBalance!
-}
-
 """
 An ISO 8601-encoded datetime
 """
@@ -333,27 +264,6 @@ enum ProcessStatus {
 }
 
 type Query {
-  balances(
-    """
-    Returns the elements in the list that come after the specified cursor.
-    """
-    after: String
-
-    """
-    Returns the elements in the list that come before the specified cursor.
-    """
-    before: String
-
-    """
-    Returns the first _n_ elements from the list.
-    """
-    first: Int
-
-    """
-    Returns the last _n_ elements from the list.
-    """
-    last: Int
-  ): BalanceConnection!
   buyCryptoOrders(
     """
     Returns the elements in the list that come after the specified cursor.
@@ -376,27 +286,6 @@ type Query {
     last: Int
   ): BuyCryptoOrderConnection!
   currentUser: User
-  fiatBalances(
-    """
-    Returns the elements in the list that come after the specified cursor.
-    """
-    after: String
-
-    """
-    Returns the elements in the list that come before the specified cursor.
-    """
-    before: String
-
-    """
-    Returns the first _n_ elements from the list.
-    """
-    first: Int
-
-    """
-    Returns the last _n_ elements from the list.
-    """
-    last: Int
-  ): FiatBalanceConnection!
 
   """
   Fetches an object given its ID.
@@ -471,7 +360,6 @@ type RecordInvalid {
 
 type SellCryptoOrder implements Node {
   createdAt: ISO8601DateTime!
-  currency: Currency!
   id: ID!
   paidAmount: String!
   receivedAmountCents: Int
@@ -555,7 +443,9 @@ input StakeOrderFilterInput {
 }
 
 type User {
+  balance: Balance!
   email: String!
+  fiatBalance: FiatBalance!
   firstName: String!
   id: ID!
   lastName: String!

app/javascript/src/pages/Home/PoolListing.tsx

@@ -7,17 +7,12 @@ import { Pool } from "./Pool";
 import type { PoolListingQuery } from "./__generated__/PoolListingQuery.graphql";
 
 export const PoolListing = () => {
-  const { balances } = useLazyLoadQuery<PoolListingQuery>(
+  const { currentUser } = useLazyLoadQuery<PoolListingQuery>(
     graphql`
       query PoolListingQuery {
-        balances {
+        currentUser {
-          edges {
+          balance {
-            node {
+            amount
-              currency {
-                name
-              }
-              amount
-            }
           }
         }
       }
@@ -25,11 +20,7 @@ export const PoolListing = () => {
     {}
   );
 
-  const cakeBalance = balances.edges.find(
+  const balance = currentUser?.balance.amount ?? "0";
-    (edge) => edge.node.currency.name === "CAKE"
-  )?.node;
-
-  const balance = cakeBalance?.amount ?? "0";
 
   return (
     <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 place-items-center w-full gap-8 py-4 -mt-16 overflow-x-hidden">

app/javascript/src/pages/Home/__generated__/PoolListingQuery.graphql.ts

@@ -5,16 +5,11 @@
 import { ConcreteRequest } from "relay-runtime";
 export type PoolListingQueryVariables = {};
 export type PoolListingQueryResponse = {
-    readonly balances: {
+    readonly currentUser: {
-        readonly edges: ReadonlyArray<{
+        readonly balance: {
-            readonly node: {
+            readonly amount: string;
-                readonly currency: {
+        };
-                    readonly name: string;
+    } | null;
-                };
-                readonly amount: string;
-            };
-        }>;
-    };
 };
 export type PoolListingQuery = {
     readonly response: PoolListingQueryResponse;
@@ -25,37 +20,25 @@ export type PoolListingQuery = {
 
 /*
 query PoolListingQuery {
-  balances {
+  currentUser {
-    edges {
+    balance {
-      node {
+      amount
-        currency {
+      id
-          name
-          id
-        }
-        amount
-        id
-      }
     }
+    id
   }
 }
 */
 
 const node: ConcreteRequest = (function(){
 var v0 = {
-  "alias": null,
-  "args": null,
-  "kind": "ScalarField",
-  "name": "name",
-  "storageKey": null
-},
-v1 = {
   "alias": null,
   "args": null,
   "kind": "ScalarField",
   "name": "amount",
   "storageKey": null
 },
-v2 = {
+v1 = {
   "alias": null,
   "args": null,
   "kind": "ScalarField",
@@ -72,43 +55,20 @@ return {
       {
         "alias": null,
         "args": null,
-        "concreteType": "BalanceConnection",
+        "concreteType": "User",
         "kind": "LinkedField",
-        "name": "balances",
+        "name": "currentUser",
         "plural": false,
         "selections": [
           {
             "alias": null,
             "args": null,
-            "concreteType": "BalanceEdge",
+            "concreteType": "Balance",
             "kind": "LinkedField",
-            "name": "edges",
+            "name": "balance",
-            "plural": true,
+            "plural": false,
             "selections": [
-              {
+              (v0/*: any*/)
-                "alias": null,
-                "args": null,
-                "concreteType": "Balance",
-                "kind": "LinkedField",
-                "name": "node",
-                "plural": false,
-                "selections": [
-                  {
-                    "alias": null,
-                    "args": null,
-                    "concreteType": "Currency",
-                    "kind": "LinkedField",
-                    "name": "currency",
-                    "plural": false,
-                    "selections": [
-                      (v0/*: any*/)
-                    ],
-                    "storageKey": null
-                  },
-                  (v1/*: any*/)
-                ],
-                "storageKey": null
-              }
             ],
             "storageKey": null
           }
@@ -128,62 +88,39 @@ return {
       {
         "alias": null,
         "args": null,
-        "concreteType": "BalanceConnection",
+        "concreteType": "User",
         "kind": "LinkedField",
-        "name": "balances",
+        "name": "currentUser",
         "plural": false,
         "selections": [
           {
             "alias": null,
             "args": null,
-            "concreteType": "BalanceEdge",
+            "concreteType": "Balance",
             "kind": "LinkedField",
-            "name": "edges",
+            "name": "balance",
-            "plural": true,
+            "plural": false,
             "selections": [
-              {
+              (v0/*: any*/),
-                "alias": null,
+              (v1/*: any*/)
-                "args": null,
-                "concreteType": "Balance",
-                "kind": "LinkedField",
-                "name": "node",
-                "plural": false,
-                "selections": [
-                  {
-                    "alias": null,
-                    "args": null,
-                    "concreteType": "Currency",
-                    "kind": "LinkedField",
-                    "name": "currency",
-                    "plural": false,
-                    "selections": [
-                      (v0/*: any*/),
-                      (v2/*: any*/)
-                    ],
-                    "storageKey": null
-                  },
-                  (v1/*: any*/),
-                  (v2/*: any*/)
-                ],
-                "storageKey": null
-              }
             ],
             "storageKey": null
-          }
+          },
+          (v1/*: any*/)
         ],
         "storageKey": null
       }
     ]
   },
   "params": {
-    "cacheID": "6abf5e963429e49993af50df156f8e1c",
+    "cacheID": "6af4091073903ead7eb057e9f245a32c",
     "id": null,
     "metadata": {},
     "name": "PoolListingQuery",
     "operationKind": "query",
-    "text": "query PoolListingQuery {\n  balances {\n    edges {\n      node {\n        currency {\n          name\n          id\n        }\n        amount\n        id\n      }\n    }\n  }\n}\n"
+    "text": "query PoolListingQuery {\n  currentUser {\n    balance {\n      amount\n      id\n    }\n    id\n  }\n}\n"
   }
 };
 })();
-(node as any).hash = '4fefb238e24b79198799686599255e6c';
+(node as any).hash = 'e296b5abac1f659b33d8c77522fbfc55';
 export default node;

app/javascript/src/pages/Orders/Exchange/Exchange.tsx

@@ -11,11 +11,13 @@ export const Exchange = () => {
   const data = useLazyLoadQuery<ExchangeQuery>(
     graphql`
       query ExchangeQuery {
-        fiatBalances {
+        currentUser {
-          ...ExchangePanel_fiatBalances
+          fiatBalance {
-        }
+            ...ExchangePanel_fiatBalances
-        balances {
+          }
-          ...ExchangePanel_balances
+          balance {
+            ...ExchangePanel_balances
+          }
         }
         buyCryptoOrders {
           ...ExchangeHistory_buyCryptoOrders
@@ -30,10 +32,12 @@ export const Exchange = () => {
 
   return (
     <div className="w-full">
-      <ExchangePanel
+      {data.currentUser && (
-        balancesRefs={data.balances}
+        <ExchangePanel
-        fiatBalancesRefs={data.fiatBalances}
+          balancesRefs={data.currentUser.balance}
-      />
+          fiatBalancesRefs={data.currentUser.fiatBalance}
+        />
+      )}
 
       <ExchangeHistory
         sellCryptoOrdersRefs={data.sellCryptoOrders}

app/javascript/src/pages/Orders/Exchange/ExchangeHistory/ExchangeHistory.tsx

@@ -3,6 +3,7 @@ import type { FC } from "react";
 import React from "react";
 import { useFragment } from "react-relay";
 
+import { Messages } from "../../../../messages";
 import { centsToUnit } from "../../../../utils/fiatMoney";
 import type { CryptoExchangeOrderProps } from "./components/CryptoExchangeOrder";
 import { CryptoExchangeOrder } from "./components/CryptoExchangeOrder";
@@ -47,9 +48,6 @@ export const ExchangeHistory: FC<Props> = ({
             createdAt
             paidAmountCents
             receivedAmount
-            currency {
-              name
-            }
             __typename
           }
         }
@@ -68,9 +66,6 @@ export const ExchangeHistory: FC<Props> = ({
             paidAmount
             receivedAmountCents
             createdAt
-            currency {
-              name
-            }
             __typename
           }
         }
@@ -95,7 +90,7 @@ export const ExchangeHistory: FC<Props> = ({
       if (node?.__typename === "SellCryptoOrder") {
         return {
           id: node.id,
-          payed: `${node.paidAmount} ${node.currency.name}`,
+          payed: `${node.paidAmount} CAKE`,
           received: `${centsToUnit(node.receivedAmountCents)} BRL`,
           createdAt: new Date(node.createdAt as string).toLocaleString(),
           kind: node.__typename,
@@ -107,7 +102,7 @@ export const ExchangeHistory: FC<Props> = ({
         return {
           id: node.id,
           payed: `${centsToUnit(node.paidAmountCents)} BRL`,
-          received: `${node.receivedAmount} ${node.currency.name}`,
+          received: `${node.receivedAmount} CAKE`,
           createdAt: new Date(node.createdAt as string).toLocaleString(),
           kind: node.__typename,
           status: node.status,
@@ -117,7 +112,7 @@ export const ExchangeHistory: FC<Props> = ({
       return null;
     });
 
-  if (!orderRows.length) return null;
+  if (!orderRows.length) return <Messages.NoHistory historyName="troca" />;
 
   return (
     <div className="container mx-auto px-4 sm:px-8">

app/javascript/src/pages/Orders/Exchange/ExchangeHistory/__generated__/ExchangeHistory_buyCryptoOrders.graphql.ts

@@ -13,9 +13,6 @@ export type ExchangeHistory_buyCryptoOrders = {
             readonly createdAt: unknown;
             readonly paidAmountCents: number;
             readonly receivedAmount: string | null;
-            readonly currency: {
-                readonly name: string;
-            };
             readonly __typename: string;
         };
     }>;
@@ -86,24 +83,6 @@ const node: ReaderFragment = {
               "name": "receivedAmount",
               "storageKey": null
             },
-            {
-              "alias": null,
-              "args": null,
-              "concreteType": "Currency",
-              "kind": "LinkedField",
-              "name": "currency",
-              "plural": false,
-              "selections": [
-                {
-                  "alias": null,
-                  "args": null,
-                  "kind": "ScalarField",
-                  "name": "name",
-                  "storageKey": null
-                }
-              ],
-              "storageKey": null
-            },
             {
               "alias": null,
               "args": null,
@@ -121,5 +100,5 @@ const node: ReaderFragment = {
   "type": "BuyCryptoOrderConnection",
   "abstractKey": null
 };
-(node as any).hash = 'da0e93160594d0e07defe123a9bd755b';
+(node as any).hash = 'cf603cb2594ebe32eb4c562df9b03585';
 export default node;

app/javascript/src/pages/Orders/Exchange/ExchangeHistory/__generated__/ExchangeHistory_sellCryptoOrders.graphql.ts

@@ -13,9 +13,6 @@ export type ExchangeHistory_sellCryptoOrders = {
             readonly paidAmount: string;
             readonly receivedAmountCents: number | null;
             readonly createdAt: unknown;
-            readonly currency: {
-                readonly name: string;
-            };
             readonly __typename: string;
         };
     }>;
@@ -86,24 +83,6 @@ const node: ReaderFragment = {
               "name": "createdAt",
               "storageKey": null
             },
-            {
-              "alias": null,
-              "args": null,
-              "concreteType": "Currency",
-              "kind": "LinkedField",
-              "name": "currency",
-              "plural": false,
-              "selections": [
-                {
-                  "alias": null,
-                  "args": null,
-                  "kind": "ScalarField",
-                  "name": "name",
-                  "storageKey": null
-                }
-              ],
-              "storageKey": null
-            },
             {
               "alias": null,
               "args": null,
@@ -121,5 +100,5 @@ const node: ReaderFragment = {
   "type": "SellCryptoOrderConnection",
   "abstractKey": null
 };
-(node as any).hash = '384d1326525240c150d450555796a621';
+(node as any).hash = '0a6fbd33935e0dcd241ffa3270f1ea30';
 export default node;

app/javascript/src/pages/Orders/Exchange/ExchangePanel/ExchangePanel.tsx

@@ -36,30 +36,19 @@ export const ExchangePanel: FC<Props> = ({
   const [cryptoDock, setCryptoDock] = useState<string>("0");
   const [fiatDock, setFiatDock] = useState<string>("0.00");
 
-  const fiatBalances = useFragment<ExchangePanel_fiatBalances$key>(
+  const fiatBalance = useFragment<ExchangePanel_fiatBalances$key>(
     graphql`
-      fragment ExchangePanel_fiatBalances on FiatBalanceConnection {
+      fragment ExchangePanel_fiatBalances on FiatBalance {
-        edges {
+        amountCents
-          node {
-            amountCents
-          }
-        }
       }
     `,
     fiatBalancesRefs
   );
 
-  const balances = useFragment<ExchangePanel_balances$key>(
+  const balance = useFragment<ExchangePanel_balances$key>(
     graphql`
-      fragment ExchangePanel_balances on BalanceConnection {
+      fragment ExchangePanel_balances on Balance {
-        edges {
+        amount
-          node {
-            amount
-            currency {
-              id
-            }
-          }
-        }
       }
     `,
     balancesRefs
@@ -67,12 +56,9 @@ export const ExchangePanel: FC<Props> = ({
 
   if (!isAuthenticated) return <Unauthenticated />;
 
-  const [crypto] = balances.edges;
+  const avaliableCrypto = new BigNumber(balance.amount);
-  const [fiat] = fiatBalances.edges;
-
-  const avaliableCrypto = new BigNumber(crypto.node.amount);
   const avaliableFiat = (
-    fiat.node.amountCents ? fiat.node.amountCents / 100 : 0
+    fiatBalance.amountCents ? fiatBalance.amountCents / 100 : 0
   ).toFixed(2);
 
   const handleSellTabClick = () => {
@@ -123,14 +109,12 @@ export const ExchangePanel: FC<Props> = ({
     if (exchangeOption === "SELL") {
       commitCreateSellCryptoOrderMutation(environment, {
         amount: cryptoDock,
-        currencyId: crypto.node.currency.id,
       });
     }
 
     if (exchangeOption === "BUY") {
       commitCreateBuyCryptoOrderMutation(environment, {
         amountCents: parseFloat(fiatDock) * 100,
-        currencyId: crypto.node.currency.id,
       });
     }
   };
@@ -172,7 +156,7 @@ export const ExchangePanel: FC<Props> = ({
       >
         <span className="mb-2">
           {exchangeOption === "SELL" ? "CAKE" : "BRL"} disponível:{" "}
-          {exchangeOption === "SELL" ? crypto.node.amount : avaliableFiat}
+          {exchangeOption === "SELL" ? balance.amount : avaliableFiat}
         </span>
         <div className="flex flex-row">
           {exchangeOption === "BUY" ? (

app/javascript/src/pages/Orders/Exchange/ExchangePanel/__generated__/ExchangePanel_balances.graphql.ts

@@ -5,14 +5,7 @@
 import { ReaderFragment } from "relay-runtime";
 import { FragmentRefs } from "relay-runtime";
 export type ExchangePanel_balances = {
-    readonly edges: ReadonlyArray<{
+    readonly amount: string;
-        readonly node: {
-            readonly amount: string;
-            readonly currency: {
-                readonly id: string;
-            };
-        };
-    }>;
     readonly " $refType": "ExchangePanel_balances";
 };
 export type ExchangePanel_balances$data = ExchangePanel_balances;
@@ -32,53 +25,13 @@ const node: ReaderFragment = {
     {
       "alias": null,
       "args": null,
-      "concreteType": "BalanceEdge",
+      "kind": "ScalarField",
-      "kind": "LinkedField",
+      "name": "amount",
-      "name": "edges",
-      "plural": true,
-      "selections": [
-        {
-          "alias": null,
-          "args": null,
-          "concreteType": "Balance",
-          "kind": "LinkedField",
-          "name": "node",
-          "plural": false,
-          "selections": [
-            {
-              "alias": null,
-              "args": null,
-              "kind": "ScalarField",
-              "name": "amount",
-              "storageKey": null
-            },
-            {
-              "alias": null,
-              "args": null,
-              "concreteType": "Currency",
-              "kind": "LinkedField",
-              "name": "currency",
-              "plural": false,
-              "selections": [
-                {
-                  "alias": null,
-                  "args": null,
-                  "kind": "ScalarField",
-                  "name": "id",
-                  "storageKey": null
-                }
-              ],
-              "storageKey": null
-            }
-          ],
-          "storageKey": null
-        }
-      ],
       "storageKey": null
     }
   ],
-  "type": "BalanceConnection",
+  "type": "Balance",
   "abstractKey": null
 };
-(node as any).hash = '3be851ad99a353609459a7edc960f272';
+(node as any).hash = '99736114264996104eaa4907673d9849';
 export default node;

app/javascript/src/pages/Orders/Exchange/ExchangePanel/__generated__/ExchangePanel_fiatBalances.graphql.ts

@@ -5,11 +5,7 @@
 import { ReaderFragment } from "relay-runtime";
 import { FragmentRefs } from "relay-runtime";
 export type ExchangePanel_fiatBalances = {
-    readonly edges: ReadonlyArray<{
+    readonly amountCents: number;
-        readonly node: {
-            readonly amountCents: number;
-        };
-    }>;
     readonly " $refType": "ExchangePanel_fiatBalances";
 };
 export type ExchangePanel_fiatBalances$data = ExchangePanel_fiatBalances;
@@ -29,35 +25,13 @@ const node: ReaderFragment = {
     {
       "alias": null,
       "args": null,
-      "concreteType": "FiatBalanceEdge",
+      "kind": "ScalarField",
-      "kind": "LinkedField",
+      "name": "amountCents",
-      "name": "edges",
-      "plural": true,
-      "selections": [
-        {
-          "alias": null,
-          "args": null,
-          "concreteType": "FiatBalance",
-          "kind": "LinkedField",
-          "name": "node",
-          "plural": false,
-          "selections": [
-            {
-              "alias": null,
-              "args": null,
-              "kind": "ScalarField",
-              "name": "amountCents",
-              "storageKey": null
-            }
-          ],
-          "storageKey": null
-        }
-      ],
       "storageKey": null
     }
   ],
-  "type": "FiatBalanceConnection",
+  "type": "FiatBalance",
   "abstractKey": null
 };
-(node as any).hash = '14b79d15c8353d856f3e74bb7c181cf7';
+(node as any).hash = '9f9bd030f967a665c247facbf641b760';
 export default node;

app/javascript/src/pages/Orders/Exchange/ExchangePanel/__generated__/createBuyCryptoOrderMutation.graphql.ts

@@ -4,7 +4,6 @@
 
 import { ConcreteRequest } from "relay-runtime";
 export type createBuyCryptoOrderMutationVariables = {
-    currencyId: string;
     amountCents: number;
 };
 export type createBuyCryptoOrderMutationResponse = {
@@ -26,10 +25,9 @@ export type createBuyCryptoOrderMutation = {
 
 /*
 mutation createBuyCryptoOrderMutation(
-  $currencyId: ID!
   $amountCents: Int!
 ) {
-  createBuyCryptoOrder(input: {order: {currencyId: $currencyId, amountCents: $amountCents}}) {
+  createBuyCryptoOrder(input: {order: {amountCents: $amountCents}}) {
     errors {
       messages
     }
@@ -41,17 +39,14 @@ mutation createBuyCryptoOrderMutation(
 */
 
 const node: ConcreteRequest = (function(){
-var v0 = {
+var v0 = [
-  "defaultValue": null,
+  {
-  "kind": "LocalArgument",
+    "defaultValue": null,
-  "name": "amountCents"
+    "kind": "LocalArgument",
-},
+    "name": "amountCents"
-v1 = {
+  }
-  "defaultValue": null,
+],
-  "kind": "LocalArgument",
+v1 = [
-  "name": "currencyId"
-},
-v2 = [
   {
     "alias": null,
     "args": [
@@ -63,11 +58,6 @@ v2 = [
                 "kind": "Variable",
                 "name": "amountCents",
                 "variableName": "amountCents"
-              },
-              {
-                "kind": "Variable",
-                "name": "currencyId",
-                "variableName": "currencyId"
               }
             ],
             "kind": "ObjectValue",
@@ -125,36 +115,30 @@ v2 = [
 ];
 return {
   "fragment": {
-    "argumentDefinitions": [
+    "argumentDefinitions": (v0/*: any*/),
-      (v0/*: any*/),
-      (v1/*: any*/)
-    ],
     "kind": "Fragment",
     "metadata": null,
     "name": "createBuyCryptoOrderMutation",
-    "selections": (v2/*: any*/),
+    "selections": (v1/*: any*/),
     "type": "Mutation",
     "abstractKey": null
   },
   "kind": "Request",
   "operation": {
-    "argumentDefinitions": [
+    "argumentDefinitions": (v0/*: any*/),
-      (v1/*: any*/),
-      (v0/*: any*/)
-    ],
     "kind": "Operation",
     "name": "createBuyCryptoOrderMutation",
-    "selections": (v2/*: any*/)
+    "selections": (v1/*: any*/)
   },
   "params": {
-    "cacheID": "d7cc0c483d893b14f46781408d9d3f2f",
+    "cacheID": "aad8a1ea13e8a77031c98f59b0c5e0db",
     "id": null,
     "metadata": {},
     "name": "createBuyCryptoOrderMutation",
     "operationKind": "mutation",
-    "text": "mutation createBuyCryptoOrderMutation(\n  $currencyId: ID!\n  $amountCents: Int!\n) {\n  createBuyCryptoOrder(input: {order: {currencyId: $currencyId, amountCents: $amountCents}}) {\n    errors {\n      messages\n    }\n    order {\n      id\n    }\n  }\n}\n"
+    "text": "mutation createBuyCryptoOrderMutation(\n  $amountCents: Int!\n) {\n  createBuyCryptoOrder(input: {order: {amountCents: $amountCents}}) {\n    errors {\n      messages\n    }\n    order {\n      id\n    }\n  }\n}\n"
   }
 };
 })();
-(node as any).hash = 'a272ce6d5ae676a9cdc4e38eb7cc3cbe';
+(node as any).hash = '1eceec2d8340693381f746a9e75476b8';
 export default node;

app/javascript/src/pages/Orders/Exchange/ExchangePanel/__generated__/createSellCryptoOrderMutation.graphql.ts

@@ -4,7 +4,6 @@
 
 import { ConcreteRequest } from "relay-runtime";
 export type createSellCryptoOrderMutationVariables = {
-    currencyId: string;
     amount: string;
 };
 export type createSellCryptoOrderMutationResponse = {
@@ -26,10 +25,9 @@ export type createSellCryptoOrderMutation = {
 
 /*
 mutation createSellCryptoOrderMutation(
-  $currencyId: ID!
   $amount: String!
 ) {
-  createSellCryptoOrder(input: {order: {currencyId: $currencyId, amount: $amount}}) {
+  createSellCryptoOrder(input: {order: {amount: $amount}}) {
     errors {
       messages
     }
@@ -41,17 +39,14 @@ mutation createSellCryptoOrderMutation(
 */
 
 const node: ConcreteRequest = (function(){
-var v0 = {
+var v0 = [
-  "defaultValue": null,
+  {
-  "kind": "LocalArgument",
+    "defaultValue": null,
-  "name": "amount"
+    "kind": "LocalArgument",
-},
+    "name": "amount"
-v1 = {
+  }
-  "defaultValue": null,
+],
-  "kind": "LocalArgument",
+v1 = [
-  "name": "currencyId"
-},
-v2 = [
   {
     "alias": null,
     "args": [
@@ -63,11 +58,6 @@ v2 = [
                 "kind": "Variable",
                 "name": "amount",
                 "variableName": "amount"
-              },
-              {
-                "kind": "Variable",
-                "name": "currencyId",
-                "variableName": "currencyId"
               }
             ],
             "kind": "ObjectValue",
@@ -125,36 +115,30 @@ v2 = [
 ];
 return {
   "fragment": {
-    "argumentDefinitions": [
+    "argumentDefinitions": (v0/*: any*/),
-      (v0/*: any*/),
-      (v1/*: any*/)
-    ],
     "kind": "Fragment",
     "metadata": null,
     "name": "createSellCryptoOrderMutation",
-    "selections": (v2/*: any*/),
+    "selections": (v1/*: any*/),
     "type": "Mutation",
     "abstractKey": null
   },
   "kind": "Request",
   "operation": {
-    "argumentDefinitions": [
+    "argumentDefinitions": (v0/*: any*/),
-      (v1/*: any*/),
-      (v0/*: any*/)
-    ],
     "kind": "Operation",
     "name": "createSellCryptoOrderMutation",
-    "selections": (v2/*: any*/)
+    "selections": (v1/*: any*/)
   },
   "params": {
-    "cacheID": "2c81ae5adf76b4fa157bc5453df40fcc",
+    "cacheID": "d4cb659efe0d2b63262cce510327ae11",
     "id": null,
     "metadata": {},
     "name": "createSellCryptoOrderMutation",
     "operationKind": "mutation",
-    "text": "mutation createSellCryptoOrderMutation(\n  $currencyId: ID!\n  $amount: String!\n) {\n  createSellCryptoOrder(input: {order: {currencyId: $currencyId, amount: $amount}}) {\n    errors {\n      messages\n    }\n    order {\n      id\n    }\n  }\n}\n"
+    "text": "mutation createSellCryptoOrderMutation(\n  $amount: String!\n) {\n  createSellCryptoOrder(input: {order: {amount: $amount}}) {\n    errors {\n      messages\n    }\n    order {\n      id\n    }\n  }\n}\n"
   }
 };
 })();
-(node as any).hash = '073e3f84d5921279ded3149dd9ec7db9';
+(node as any).hash = '5ce66da95c141385c607a3be499805f7';
 export default node;

app/javascript/src/pages/Orders/Exchange/ExchangePanel/createBuyCryptoOrder.ts

@@ -10,15 +10,8 @@ export const commitCreateBuyCryptoOrderMutation = (
 ) => {
   return commitMutation(environment, {
     mutation: graphql`
-      mutation createBuyCryptoOrderMutation(
+      mutation createBuyCryptoOrderMutation($amountCents: Int!) {
-        $currencyId: ID!
+        createBuyCryptoOrder(input: { order: { amountCents: $amountCents } }) {
-        $amountCents: Int!
-      ) {
-        createBuyCryptoOrder(
-          input: {
-            order: { currencyId: $currencyId, amountCents: $amountCents }
-          }
-        ) {
           errors {
             messages
           }
@@ -28,7 +21,7 @@ export const commitCreateBuyCryptoOrderMutation = (
         }
       }
     `,
-    variables: { ...variables },
+    variables,
     onCompleted: (_response) => {
       window.location.reload();
     },

app/javascript/src/pages/Orders/Exchange/ExchangePanel/createSellCryptoOrder.ts

@@ -10,13 +10,8 @@ export const commitCreateSellCryptoOrderMutation = (
 ) => {
   return commitMutation(environment, {
     mutation: graphql`
-      mutation createSellCryptoOrderMutation(
+      mutation createSellCryptoOrderMutation($amount: String!) {
-        $currencyId: ID!
+        createSellCryptoOrder(input: { order: { amount: $amount } }) {
-        $amount: String!
-      ) {
-        createSellCryptoOrder(
-          input: { order: { currencyId: $currencyId, amount: $amount } }
-        ) {
           errors {
             messages
           }
@@ -26,7 +21,7 @@ export const commitCreateSellCryptoOrderMutation = (
         }
       }
     `,
-    variables: { ...variables },
+    variables,
     onCompleted: (_response) => {
       window.location.reload();
     },

app/javascript/src/pages/Orders/Exchange/__generated__/ExchangeQuery.graphql.ts

@@ -6,12 +6,14 @@ import { ConcreteRequest } from "relay-runtime";
 import { FragmentRefs } from "relay-runtime";
 export type ExchangeQueryVariables = {};
 export type ExchangeQueryResponse = {
-    readonly fiatBalances: {
+    readonly currentUser: {
-        readonly " $fragmentRefs": FragmentRefs<"ExchangePanel_fiatBalances">;
+        readonly fiatBalance: {
-    };
+            readonly " $fragmentRefs": FragmentRefs<"ExchangePanel_fiatBalances">;
-    readonly balances: {
+        };
-        readonly " $fragmentRefs": FragmentRefs<"ExchangePanel_balances">;
+        readonly balance: {
-    };
+            readonly " $fragmentRefs": FragmentRefs<"ExchangePanel_balances">;
+        };
+    } | null;
     readonly buyCryptoOrders: {
         readonly " $fragmentRefs": FragmentRefs<"ExchangeHistory_buyCryptoOrders">;
     };
@@ -28,11 +30,16 @@ export type ExchangeQuery = {
 
 /*
 query ExchangeQuery {
-  fiatBalances {
+  currentUser {
-    ...ExchangePanel_fiatBalances
+    fiatBalance {
-  }
+      ...ExchangePanel_fiatBalances
-  balances {
+      id
-    ...ExchangePanel_balances
+    }
+    balance {
+      ...ExchangePanel_balances
+      id
+    }
+    id
   }
   buyCryptoOrders {
     ...ExchangeHistory_buyCryptoOrders
@@ -50,10 +57,6 @@ fragment ExchangeHistory_buyCryptoOrders on BuyCryptoOrderConnection {
       createdAt
       paidAmountCents
       receivedAmount
-      currency {
-        name
-        id
-      }
       __typename
     }
   }
@@ -67,34 +70,17 @@ fragment ExchangeHistory_sellCryptoOrders on SellCryptoOrderConnection {
       paidAmount
       receivedAmountCents
       createdAt
-      currency {
-        name
-        id
-      }
       __typename
     }
   }
 }
 
-fragment ExchangePanel_balances on BalanceConnection {
+fragment ExchangePanel_balances on Balance {
-  edges {
+  amount
-    node {
-      amount
-      currency {
-        id
-      }
-      id
-    }
-  }
 }
 
-fragment ExchangePanel_fiatBalances on FiatBalanceConnection {
+fragment ExchangePanel_fiatBalances on FiatBalance {
-  edges {
+  amountCents
-    node {
-      amountCents
-      id
-    }
-  }
 }
 */
 
@@ -121,25 +107,6 @@ v2 = {
   "storageKey": null
 },
 v3 = {
-  "alias": null,
-  "args": null,
-  "concreteType": "Currency",
-  "kind": "LinkedField",
-  "name": "currency",
-  "plural": false,
-  "selections": [
-    {
-      "alias": null,
-      "args": null,
-      "kind": "ScalarField",
-      "name": "name",
-      "storageKey": null
-    },
-    (v0/*: any*/)
-  ],
-  "storageKey": null
-},
-v4 = {
   "alias": null,
   "args": null,
   "kind": "ScalarField",
@@ -156,31 +123,42 @@ return {
       {
         "alias": null,
         "args": null,
-        "concreteType": "FiatBalanceConnection",
+        "concreteType": "User",
         "kind": "LinkedField",
-        "name": "fiatBalances",
+        "name": "currentUser",
         "plural": false,
         "selections": [
           {
+            "alias": null,
             "args": null,
-            "kind": "FragmentSpread",
+            "concreteType": "FiatBalance",
-            "name": "ExchangePanel_fiatBalances"
+            "kind": "LinkedField",
-          }
+            "name": "fiatBalance",
-        ],
+            "plural": false,
-        "storageKey": null
+            "selections": [
-      },
+              {
-      {
+                "args": null,
-        "alias": null,
+                "kind": "FragmentSpread",
-        "args": null,
+                "name": "ExchangePanel_fiatBalances"
-        "concreteType": "BalanceConnection",
+              }
-        "kind": "LinkedField",
+            ],
-        "name": "balances",
+            "storageKey": null
-        "plural": false,
+          },
-        "selections": [
           {
+            "alias": null,
             "args": null,
-            "kind": "FragmentSpread",
+            "concreteType": "Balance",
-            "name": "ExchangePanel_balances"
+            "kind": "LinkedField",
+            "name": "balance",
+            "plural": false,
+            "selections": [
+              {
+                "args": null,
+                "kind": "FragmentSpread",
+                "name": "ExchangePanel_balances"
+              }
+            ],
+            "storageKey": null
           }
         ],
         "storageKey": null
@@ -230,94 +208,50 @@ return {
       {
         "alias": null,
         "args": null,
-        "concreteType": "FiatBalanceConnection",
+        "concreteType": "User",
         "kind": "LinkedField",
-        "name": "fiatBalances",
+        "name": "currentUser",
         "plural": false,
         "selections": [
           {
             "alias": null,
             "args": null,
-            "concreteType": "FiatBalanceEdge",
+            "concreteType": "FiatBalance",
             "kind": "LinkedField",
-            "name": "edges",
+            "name": "fiatBalance",
-            "plural": true,
+            "plural": false,
             "selections": [
               {
                 "alias": null,
                 "args": null,
-                "concreteType": "FiatBalance",
+                "kind": "ScalarField",
-                "kind": "LinkedField",
+                "name": "amountCents",
-                "name": "node",
-                "plural": false,
-                "selections": [
-                  {
-                    "alias": null,
-                    "args": null,
-                    "kind": "ScalarField",
-                    "name": "amountCents",
-                    "storageKey": null
-                  },
-                  (v0/*: any*/)
-                ],
                 "storageKey": null
-              }
+              },
+              (v0/*: any*/)
             ],
             "storageKey": null
-          }
+          },
-        ],
-        "storageKey": null
-      },
-      {
-        "alias": null,
-        "args": null,
-        "concreteType": "BalanceConnection",
-        "kind": "LinkedField",
-        "name": "balances",
-        "plural": false,
-        "selections": [
           {
             "alias": null,
             "args": null,
-            "concreteType": "BalanceEdge",
+            "concreteType": "Balance",
             "kind": "LinkedField",
-            "name": "edges",
+            "name": "balance",
-            "plural": true,
+            "plural": false,
             "selections": [
               {
                 "alias": null,
                 "args": null,
-                "concreteType": "Balance",
+                "kind": "ScalarField",
-                "kind": "LinkedField",
+                "name": "amount",
-                "name": "node",
-                "plural": false,
-                "selections": [
-                  {
-                    "alias": null,
-                    "args": null,
-                    "kind": "ScalarField",
-                    "name": "amount",
-                    "storageKey": null
-                  },
-                  {
-                    "alias": null,
-                    "args": null,
-                    "concreteType": "Currency",
-                    "kind": "LinkedField",
-                    "name": "currency",
-                    "plural": false,
-                    "selections": [
-                      (v0/*: any*/)
-                    ],
-                    "storageKey": null
-                  },
-                  (v0/*: any*/)
-                ],
                 "storageKey": null
-              }
+              },
+              (v0/*: any*/)
             ],
             "storageKey": null
-          }
+          },
+          (v0/*: any*/)
         ],
         "storageKey": null
       },
@@ -362,8 +296,7 @@ return {
                     "name": "receivedAmount",
                     "storageKey": null
                   },
-                  (v3/*: any*/),
+                  (v3/*: any*/)
-                  (v4/*: any*/)
                 ],
                 "storageKey": null
               }
@@ -414,8 +347,7 @@ return {
                     "storageKey": null
                   },
                   (v2/*: any*/),
-                  (v3/*: any*/),
+                  (v3/*: any*/)
-                  (v4/*: any*/)
                 ],
                 "storageKey": null
               }
@@ -428,14 +360,14 @@ return {
     ]
   },
   "params": {
-    "cacheID": "424352bbffec52284c44f109ce54a441",
+    "cacheID": "3312f3d7aa6ac4b7051376b61f10c957",
     "id": null,
     "metadata": {},
     "name": "ExchangeQuery",
     "operationKind": "query",
-    "text": "query ExchangeQuery {\n  fiatBalances {\n    ...ExchangePanel_fiatBalances\n  }\n  balances {\n    ...ExchangePanel_balances\n  }\n  buyCryptoOrders {\n    ...ExchangeHistory_buyCryptoOrders\n  }\n  sellCryptoOrders {\n    ...ExchangeHistory_sellCryptoOrders\n  }\n}\n\nfragment ExchangeHistory_buyCryptoOrders on BuyCryptoOrderConnection {\n  edges {\n    node {\n      id\n      status\n      createdAt\n      paidAmountCents\n      receivedAmount\n      currency {\n        name\n        id\n      }\n      __typename\n    }\n  }\n}\n\nfragment ExchangeHistory_sellCryptoOrders on SellCryptoOrderConnection {\n  edges {\n    node {\n      id\n      status\n      paidAmount\n      receivedAmountCents\n      createdAt\n      currency {\n        name\n        id\n      }\n      __typename\n    }\n  }\n}\n\nfragment ExchangePanel_balances on BalanceConnection {\n  edges {\n    node {\n      amount\n      currency {\n        id\n      }\n      id\n    }\n  }\n}\n\nfragment ExchangePanel_fiatBalances on FiatBalanceConnection {\n  edges {\n    node {\n      amountCents\n      id\n    }\n  }\n}\n"
+    "text": "query ExchangeQuery {\n  currentUser {\n    fiatBalance {\n      ...ExchangePanel_fiatBalances\n      id\n    }\n    balance {\n      ...ExchangePanel_balances\n      id\n    }\n    id\n  }\n  buyCryptoOrders {\n    ...ExchangeHistory_buyCryptoOrders\n  }\n  sellCryptoOrders {\n    ...ExchangeHistory_sellCryptoOrders\n  }\n}\n\nfragment ExchangeHistory_buyCryptoOrders on BuyCryptoOrderConnection {\n  edges {\n    node {\n      id\n      status\n      createdAt\n      paidAmountCents\n      receivedAmount\n      __typename\n    }\n  }\n}\n\nfragment ExchangeHistory_sellCryptoOrders on SellCryptoOrderConnection {\n  edges {\n    node {\n      id\n      status\n      paidAmount\n      receivedAmountCents\n      createdAt\n      __typename\n    }\n  }\n}\n\nfragment ExchangePanel_balances on Balance {\n  amount\n}\n\nfragment ExchangePanel_fiatBalances on FiatBalance {\n  amountCents\n}\n"
   }
 };
 })();
-(node as any).hash = '3d09bb5b003cac17750666dc76088801';
+(node as any).hash = '85296680bd82d278a1f5d485b8b101f3';
 export default node;

app/javascript/src/pages/Wallet/Balance.tsx

@@ -0,0 +1,71 @@
+import { graphql } from "babel-plugin-relay/macro";
+import type { FC } from "react";
+import React from "react";
+import { useFragment } from "react-relay";
+
+import { getCurrencyLogo } from "../../utils/getCurrencyLogo";
+import type { Balance_balance$key } from "./__generated__/Balance_balance.graphql";
+
+type Props = {
+  balancesRef: Balance_balance$key;
+};
+export const Balance: FC<Props> = ({ balancesRef }) => {
+  const node = useFragment<Balance_balance$key>(
+    graphql`
+      fragment Balance_balance on Balance {
+        amount
+      }
+    `,
+    balancesRef
+  );
+
+  if (!node) return null;
+
+  return (
+    <div className="-mx-4 sm:-mx-8 px-4 sm:px-8 py-4 overflow-x-auto">
+      <div className="inline-block min-w-full shadow rounded-lg overflow-hidden">
+        <table className="min-w-full leading-normal">
+          <thead>
+            <tr>
+              <th
+                scope="col"
+                className="px-5 py-3 bg-white  border-b border-gray-200 text-gray-800  text-left text-sm uppercase font-normal"
+              >
+                Moeda
+              </th>
+              <th
+                scope="col"
+                className="px-5 py-3 bg-white  border-b border-gray-200 text-gray-800  text-left text-sm uppercase font-normal"
+              >
+                Saldo
+              </th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr>
+              <td className="px-5 py-5 border-b border-gray-200 bg-white text-sm">
+                <div className="flex items-center">
+                  <div className="flex-shrink-0">
+                    <img
+                      alt="CAKE icon"
+                      src={getCurrencyLogo("CAKE")}
+                      className="mx-auto object-cover rounded-full h-10 w-10 "
+                    />
+                  </div>
+                  <div className="ml-3">
+                    <p className="text-gray-900 whitespace-no-wrap">CAKE</p>
+                  </div>
+                </div>
+              </td>
+              <td className="px-5 py-5 border-b border-gray-200 bg-white text-sm">
+                <p className="text-gray-900 whitespace-no-wrap">
+                  {node.amount}
+                </p>
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </div>
+  );
+};

app/javascript/src/pages/Wallet/Balances.tsx

@@ -1,85 +0,0 @@
-import { graphql } from "babel-plugin-relay/macro";
-import type { FC } from "react";
-import React from "react";
-import { useFragment } from "react-relay";
-
-import { getCurrencyLogo } from "../../utils/getCurrencyLogo";
-import type { Balances_balances$key } from "./__generated__/Balances_balances.graphql";
-
-type Props = {
-  balancesRef: Balances_balances$key;
-};
-export const Balances: FC<Props> = ({ balancesRef }) => {
-  const { edges } = useFragment<Balances_balances$key>(
-    graphql`
-      fragment Balances_balances on BalanceConnection {
-        edges {
-          node {
-            id
-            amount
-            currency {
-              name
-            }
-          }
-        }
-      }
-    `,
-    balancesRef
-  );
-
-  if (!edges.length) return null;
-
-  return (
-    <div className="-mx-4 sm:-mx-8 px-4 sm:px-8 py-4 overflow-x-auto">
-      <div className="inline-block min-w-full shadow rounded-lg overflow-hidden">
-        <table className="min-w-full leading-normal">
-          <thead>
-            <tr>
-              <th
-                scope="col"
-                className="px-5 py-3 bg-white  border-b border-gray-200 text-gray-800  text-left text-sm uppercase font-normal"
-              >
-                Moeda
-              </th>
-              <th
-                scope="col"
-                className="px-5 py-3 bg-white  border-b border-gray-200 text-gray-800  text-left text-sm uppercase font-normal"
-              >
-                Saldo
-              </th>
-            </tr>
-          </thead>
-          <tbody>
-            {edges.map(({ node }) => {
-              return (
-                <tr key={node.id}>
-                  <td className="px-5 py-5 border-b border-gray-200 bg-white text-sm">
-                    <div className="flex items-center">
-                      <div className="flex-shrink-0">
-                        <img
-                          alt={`${node.currency.name} icon`}
-                          src={getCurrencyLogo(node.currency.name)}
-                          className="mx-auto object-cover rounded-full h-10 w-10 "
-                        />
-                      </div>
-                      <div className="ml-3">
-                        <p className="text-gray-900 whitespace-no-wrap">
-                          {node.currency.name}
-                        </p>
-                      </div>
-                    </div>
-                  </td>
-                  <td className="px-5 py-5 border-b border-gray-200 bg-white text-sm">
-                    <p className="text-gray-900 whitespace-no-wrap">
-                      {node.amount}
-                    </p>
-                  </td>
-                </tr>
-              );
-            })}
-          </tbody>
-        </table>
-      </div>
-    </div>
-  );
-};

app/javascript/src/pages/Wallet/FiatBalance.tsx

@@ -3,31 +3,25 @@ import type { FC } from "react";
 import React from "react";
 import { useFragment } from "react-relay";
 
-import type { FiatBalances_fiatBalances$key } from "./__generated__/FiatBalances_fiatBalances.graphql";
+import type { FiatBalance_fiatBalance$key } from "./__generated__/FiatBalance_fiatBalance.graphql";
 
 type Props = {
-  fiatBalancesRef: FiatBalances_fiatBalances$key;
+  fiatBalancesRef: FiatBalance_fiatBalance$key;
 };
-export const FiatBalances: FC<Props> = ({ fiatBalancesRef }) => {
+export const FiatBalance: FC<Props> = ({ fiatBalancesRef }) => {
-  const { edges } = useFragment<FiatBalances_fiatBalances$key>(
+  const userFiatBalance = useFragment<FiatBalance_fiatBalance$key>(
     graphql`
-      fragment FiatBalances_fiatBalances on FiatBalanceConnection {
+      fragment FiatBalance_fiatBalance on FiatBalance {
-        edges {
+        amountCents
-          node {
+        amountCurrency
-            amountCents
-            amountCurrency
-          }
-        }
       }
     `,
     fiatBalancesRef
   );
 
-  if (!edges.length) return null;
+  if (!userFiatBalance) return null;
 
-  const [firstResult] = edges;
+  const { amountCents, amountCurrency } = userFiatBalance;
-
-  const { amountCents, amountCurrency } = firstResult.node;
 
   const amount = (amountCents ? amountCents / 100 : 0).toFixed(2);
 

app/javascript/src/pages/Wallet/Wallet.tsx

@@ -5,34 +5,36 @@ import { useLazyLoadQuery } from "react-relay";
 
 import { useCurrentUser } from "../../contexts/UserProvider";
 import { Messages } from "../../messages";
-import { Balances } from "./Balances";
+import { Balance } from "./Balance";
-import { FiatBalances } from "./FiatBalances";
+import { FiatBalance } from "./FiatBalance";
 import type { WalletQuery } from "./__generated__/WalletQuery.graphql";
 
 export const Wallet: FC = () => {
   const { isAuthenticated } = useCurrentUser();
-  const { fiatBalances, balances } = useLazyLoadQuery<WalletQuery>(
+  const { currentUser } = useLazyLoadQuery<WalletQuery>(
     graphql`
       query WalletQuery {
-        fiatBalances {
+        currentUser {
-          ...FiatBalances_fiatBalances
+          fiatBalance {
-        }
+            ...FiatBalance_fiatBalance
-        balances {
+          }
-          ...Balances_balances
+          balance {
+            ...Balance_balance
+          }
         }
       }
     `,
     {}
   );
 
-  if (!isAuthenticated) return <Messages.Unauthenticated />;
+  if (!isAuthenticated || !currentUser) return <Messages.Unauthenticated />;
 
   return (
     <div className="flex flex-col h-full w-full overflow-x-hidden">
       <div className="container mx-auto px-4 sm:px-8 max-w-3xl">
         <div className="py-8">
-          <FiatBalances fiatBalancesRef={fiatBalances} />
+          <FiatBalance fiatBalancesRef={currentUser.fiatBalance} />
-          <Balances balancesRef={balances} />
+          <Balance balancesRef={currentUser.balance} />
         </div>
       </div>
     </div>

app/javascript/src/pages/Wallet/__generated__/Balance_balance.graphql.ts

@@ -0,0 +1,37 @@
+/* tslint:disable */
+/* eslint-disable */
+// @ts-nocheck
+
+import { ReaderFragment } from "relay-runtime";
+import { FragmentRefs } from "relay-runtime";
+export type Balance_balance = {
+    readonly amount: string;
+    readonly " $refType": "Balance_balance";
+};
+export type Balance_balance$data = Balance_balance;
+export type Balance_balance$key = {
+    readonly " $data"?: Balance_balance$data;
+    readonly " $fragmentRefs": FragmentRefs<"Balance_balance">;
+};
+
+
+
+const node: ReaderFragment = {
+  "argumentDefinitions": [],
+  "kind": "Fragment",
+  "metadata": null,
+  "name": "Balance_balance",
+  "selections": [
+    {
+      "alias": null,
+      "args": null,
+      "kind": "ScalarField",
+      "name": "amount",
+      "storageKey": null
+    }
+  ],
+  "type": "Balance",
+  "abstractKey": null
+};
+(node as any).hash = '3f420063f1e6ebfcd91bd05b7bbb492a';
+export default node;

app/javascript/src/pages/Wallet/__generated__/Balances_balances.graphql.ts

@@ -1,92 +0,0 @@
-/* tslint:disable */
-/* eslint-disable */
-// @ts-nocheck
-
-import { ReaderFragment } from "relay-runtime";
-import { FragmentRefs } from "relay-runtime";
-export type Balances_balances = {
-    readonly edges: ReadonlyArray<{
-        readonly node: {
-            readonly id: string;
-            readonly amount: string;
-            readonly currency: {
-                readonly name: string;
-            };
-        };
-    }>;
-    readonly " $refType": "Balances_balances";
-};
-export type Balances_balances$data = Balances_balances;
-export type Balances_balances$key = {
-    readonly " $data"?: Balances_balances$data;
-    readonly " $fragmentRefs": FragmentRefs<"Balances_balances">;
-};
-
-
-
-const node: ReaderFragment = {
-  "argumentDefinitions": [],
-  "kind": "Fragment",
-  "metadata": null,
-  "name": "Balances_balances",
-  "selections": [
-    {
-      "alias": null,
-      "args": null,
-      "concreteType": "BalanceEdge",
-      "kind": "LinkedField",
-      "name": "edges",
-      "plural": true,
-      "selections": [
-        {
-          "alias": null,
-          "args": null,
-          "concreteType": "Balance",
-          "kind": "LinkedField",
-          "name": "node",
-          "plural": false,
-          "selections": [
-            {
-              "alias": null,
-              "args": null,
-              "kind": "ScalarField",
-              "name": "id",
-              "storageKey": null
-            },
-            {
-              "alias": null,
-              "args": null,
-              "kind": "ScalarField",
-              "name": "amount",
-              "storageKey": null
-            },
-            {
-              "alias": null,
-              "args": null,
-              "concreteType": "Currency",
-              "kind": "LinkedField",
-              "name": "currency",
-              "plural": false,
-              "selections": [
-                {
-                  "alias": null,
-                  "args": null,
-                  "kind": "ScalarField",
-                  "name": "name",
-                  "storageKey": null
-                }
-              ],
-              "storageKey": null
-            }
-          ],
-          "storageKey": null
-        }
-      ],
-      "storageKey": null
-    }
-  ],
-  "type": "BalanceConnection",
-  "abstractKey": null
-};
-(node as any).hash = 'f42e01739ec72a194e05843169435d96';
-export default node;

app/javascript/src/pages/Wallet/__generated__/FiatBalance_fiatBalance.graphql.ts

@@ -0,0 +1,45 @@
+/* tslint:disable */
+/* eslint-disable */
+// @ts-nocheck
+
+import { ReaderFragment } from "relay-runtime";
+import { FragmentRefs } from "relay-runtime";
+export type FiatBalance_fiatBalance = {
+    readonly amountCents: number;
+    readonly amountCurrency: string;
+    readonly " $refType": "FiatBalance_fiatBalance";
+};
+export type FiatBalance_fiatBalance$data = FiatBalance_fiatBalance;
+export type FiatBalance_fiatBalance$key = {
+    readonly " $data"?: FiatBalance_fiatBalance$data;
+    readonly " $fragmentRefs": FragmentRefs<"FiatBalance_fiatBalance">;
+};
+
+
+
+const node: ReaderFragment = {
+  "argumentDefinitions": [],
+  "kind": "Fragment",
+  "metadata": null,
+  "name": "FiatBalance_fiatBalance",
+  "selections": [
+    {
+      "alias": null,
+      "args": null,
+      "kind": "ScalarField",
+      "name": "amountCents",
+      "storageKey": null
+    },
+    {
+      "alias": null,
+      "args": null,
+      "kind": "ScalarField",
+      "name": "amountCurrency",
+      "storageKey": null
+    }
+  ],
+  "type": "FiatBalance",
+  "abstractKey": null
+};
+(node as any).hash = 'dc28e4dca104c7d25465a30412661af2';
+export default node;

app/javascript/src/pages/Wallet/__generated__/FiatBalances_fiatBalances.graphql.ts

@@ -1,71 +0,0 @@
-/* tslint:disable */
-/* eslint-disable */
-// @ts-nocheck
-
-import { ReaderFragment } from "relay-runtime";
-import { FragmentRefs } from "relay-runtime";
-export type FiatBalances_fiatBalances = {
-    readonly edges: ReadonlyArray<{
-        readonly node: {
-            readonly amountCents: number;
-            readonly amountCurrency: string;
-        };
-    }>;
-    readonly " $refType": "FiatBalances_fiatBalances";
-};
-export type FiatBalances_fiatBalances$data = FiatBalances_fiatBalances;
-export type FiatBalances_fiatBalances$key = {
-    readonly " $data"?: FiatBalances_fiatBalances$data;
-    readonly " $fragmentRefs": FragmentRefs<"FiatBalances_fiatBalances">;
-};
-
-
-
-const node: ReaderFragment = {
-  "argumentDefinitions": [],
-  "kind": "Fragment",
-  "metadata": null,
-  "name": "FiatBalances_fiatBalances",
-  "selections": [
-    {
-      "alias": null,
-      "args": null,
-      "concreteType": "FiatBalanceEdge",
-      "kind": "LinkedField",
-      "name": "edges",
-      "plural": true,
-      "selections": [
-        {
-          "alias": null,
-          "args": null,
-          "concreteType": "FiatBalance",
-          "kind": "LinkedField",
-          "name": "node",
-          "plural": false,
-          "selections": [
-            {
-              "alias": null,
-              "args": null,
-              "kind": "ScalarField",
-              "name": "amountCents",
-              "storageKey": null
-            },
-            {
-              "alias": null,
-              "args": null,
-              "kind": "ScalarField",
-              "name": "amountCurrency",
-              "storageKey": null
-            }
-          ],
-          "storageKey": null
-        }
-      ],
-      "storageKey": null
-    }
-  ],
-  "type": "FiatBalanceConnection",
-  "abstractKey": null
-};
-(node as any).hash = 'a1454d1a8afc3cffb17cbfbe9e3555f7';
-export default node;

app/javascript/src/pages/Wallet/__generated__/WalletQuery.graphql.ts

@@ -6,12 +6,14 @@ import { ConcreteRequest } from "relay-runtime";
 import { FragmentRefs } from "relay-runtime";
 export type WalletQueryVariables = {};
 export type WalletQueryResponse = {
-    readonly fiatBalances: {
+    readonly currentUser: {
-        readonly " $fragmentRefs": FragmentRefs<"FiatBalances_fiatBalances">;
+        readonly fiatBalance: {
-    };
+            readonly " $fragmentRefs": FragmentRefs<"FiatBalance_fiatBalance">;
-    readonly balances: {
+        };
-        readonly " $fragmentRefs": FragmentRefs<"Balances_balances">;
+        readonly balance: {
-    };
+            readonly " $fragmentRefs": FragmentRefs<"Balance_balance">;
+        };
+    } | null;
 };
 export type WalletQuery = {
     readonly response: WalletQueryResponse;
@@ -22,35 +24,26 @@ export type WalletQuery = {
 
 /*
 query WalletQuery {
-  fiatBalances {
+  currentUser {
-    ...FiatBalances_fiatBalances
+    fiatBalance {
-  }
+      ...FiatBalance_fiatBalance
-  balances {
+      id
-    ...Balances_balances
+    }
+    balance {
+      ...Balance_balance
+      id
+    }
+    id
   }
 }
 
-fragment Balances_balances on BalanceConnection {
+fragment Balance_balance on Balance {
-  edges {
+  amount
-    node {
-      id
-      amount
-      currency {
-        name
-        id
-      }
-    }
-  }
 }
 
-fragment FiatBalances_fiatBalances on FiatBalanceConnection {
+fragment FiatBalance_fiatBalance on FiatBalance {
-  edges {
+  amountCents
-    node {
+  amountCurrency
-      amountCents
-      amountCurrency
-      id
-    }
-  }
 }
 */
 
@@ -72,31 +65,42 @@ return {
       {
         "alias": null,
         "args": null,
-        "concreteType": "FiatBalanceConnection",
+        "concreteType": "User",
         "kind": "LinkedField",
-        "name": "fiatBalances",
+        "name": "currentUser",
         "plural": false,
         "selections": [
           {
+            "alias": null,
             "args": null,
-            "kind": "FragmentSpread",
+            "concreteType": "FiatBalance",
-            "name": "FiatBalances_fiatBalances"
+            "kind": "LinkedField",
-          }
+            "name": "fiatBalance",
-        ],
+            "plural": false,
-        "storageKey": null
+            "selections": [
-      },
+              {
-      {
+                "args": null,
-        "alias": null,
+                "kind": "FragmentSpread",
-        "args": null,
+                "name": "FiatBalance_fiatBalance"
-        "concreteType": "BalanceConnection",
+              }
-        "kind": "LinkedField",
+            ],
-        "name": "balances",
+            "storageKey": null
-        "plural": false,
+          },
-        "selections": [
           {
+            "alias": null,
             "args": null,
-            "kind": "FragmentSpread",
+            "concreteType": "Balance",
-            "name": "Balances_balances"
+            "kind": "LinkedField",
+            "name": "balance",
+            "plural": false,
+            "selections": [
+              {
+                "args": null,
+                "kind": "FragmentSpread",
+                "name": "Balance_balance"
+              }
+            ],
+            "storageKey": null
           }
         ],
         "storageKey": null
@@ -114,122 +118,71 @@ return {
       {
         "alias": null,
         "args": null,
-        "concreteType": "FiatBalanceConnection",
+        "concreteType": "User",
         "kind": "LinkedField",
-        "name": "fiatBalances",
+        "name": "currentUser",
         "plural": false,
         "selections": [
           {
             "alias": null,
             "args": null,
-            "concreteType": "FiatBalanceEdge",
+            "concreteType": "FiatBalance",
             "kind": "LinkedField",
-            "name": "edges",
+            "name": "fiatBalance",
-            "plural": true,
+            "plural": false,
             "selections": [
               {
                 "alias": null,
                 "args": null,
-                "concreteType": "FiatBalance",
+                "kind": "ScalarField",
-                "kind": "LinkedField",
+                "name": "amountCents",
-                "name": "node",
-                "plural": false,
-                "selections": [
-                  {
-                    "alias": null,
-                    "args": null,
-                    "kind": "ScalarField",
-                    "name": "amountCents",
-                    "storageKey": null
-                  },
-                  {
-                    "alias": null,
-                    "args": null,
-                    "kind": "ScalarField",
-                    "name": "amountCurrency",
-                    "storageKey": null
-                  },
-                  (v0/*: any*/)
-                ],
                 "storageKey": null
-              }
+              },
+              {
+                "alias": null,
+                "args": null,
+                "kind": "ScalarField",
+                "name": "amountCurrency",
+                "storageKey": null
+              },
+              (v0/*: any*/)
             ],
             "storageKey": null
-          }
+          },
-        ],
-        "storageKey": null
-      },
-      {
-        "alias": null,
-        "args": null,
-        "concreteType": "BalanceConnection",
-        "kind": "LinkedField",
-        "name": "balances",
-        "plural": false,
-        "selections": [
           {
             "alias": null,
             "args": null,
-            "concreteType": "BalanceEdge",
+            "concreteType": "Balance",
             "kind": "LinkedField",
-            "name": "edges",
+            "name": "balance",
-            "plural": true,
+            "plural": false,
             "selections": [
               {
                 "alias": null,
                 "args": null,
-                "concreteType": "Balance",
+                "kind": "ScalarField",
-                "kind": "LinkedField",
+                "name": "amount",
-                "name": "node",
-                "plural": false,
-                "selections": [
-                  (v0/*: any*/),
-                  {
-                    "alias": null,
-                    "args": null,
-                    "kind": "ScalarField",
-                    "name": "amount",
-                    "storageKey": null
-                  },
-                  {
-                    "alias": null,
-                    "args": null,
-                    "concreteType": "Currency",
-                    "kind": "LinkedField",
-                    "name": "currency",
-                    "plural": false,
-                    "selections": [
-                      {
-                        "alias": null,
-                        "args": null,
-                        "kind": "ScalarField",
-                        "name": "name",
-                        "storageKey": null
-                      },
-                      (v0/*: any*/)
-                    ],
-                    "storageKey": null
-                  }
-                ],
                 "storageKey": null
-              }
+              },
+              (v0/*: any*/)
             ],
             "storageKey": null
-          }
+          },
+          (v0/*: any*/)
         ],
         "storageKey": null
       }
     ]
   },
   "params": {
-    "cacheID": "6acfc80d1e8d7c882a03e25cc7902d72",
+    "cacheID": "d0537f2712255befa46df80db6c7246b",
     "id": null,
     "metadata": {},
     "name": "WalletQuery",
     "operationKind": "query",
-    "text": "query WalletQuery {\n  fiatBalances {\n    ...FiatBalances_fiatBalances\n  }\n  balances {\n    ...Balances_balances\n  }\n}\n\nfragment Balances_balances on BalanceConnection {\n  edges {\n    node {\n      id\n      amount\n      currency {\n        name\n        id\n      }\n    }\n  }\n}\n\nfragment FiatBalances_fiatBalances on FiatBalanceConnection {\n  edges {\n    node {\n      amountCents\n      amountCurrency\n      id\n    }\n  }\n}\n"
+    "text": "query WalletQuery {\n  currentUser {\n    fiatBalance {\n      ...FiatBalance_fiatBalance\n      id\n    }\n    balance {\n      ...Balance_balance\n      id\n    }\n    id\n  }\n}\n\nfragment Balance_balance on Balance {\n  amount\n}\n\nfragment FiatBalance_fiatBalance on FiatBalance {\n  amountCents\n  amountCurrency\n}\n"
   }
 };
 })();
-(node as any).hash = '855efce679c691a77938b64376a1a805';
+(node as any).hash = '61fbc56a1e87c83a8a0a4460c231be53';
 export default node;

app/models/balance.rb

@@ -4,28 +4,24 @@
 #
 # Table name: balances
 #
-#  id          :bigint           not null, primary key
+#  id         :bigint           not null, primary key
-#  amount      :decimal(20, 10)  default(0.0), not null
+#  amount     :decimal(20, 10)  default(0.0), not null
-#  created_at  :datetime         not null
+#  created_at :datetime         not null
-#  updated_at  :datetime         not null
+#  updated_at :datetime         not null
-#  currency_id :bigint           not null
+#  user_id    :bigint           not null
-#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_balances_on_currency_id  (currency_id)
+#  index_balances_on_user_id  (user_id)
-#  index_balances_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 class Balance < ApplicationRecord
   include Trackable
 
   belongs_to :user
-  belongs_to :currency
 
   validates :amount, presence: true, numericality: { greater_than_or_equal_to: 0 }
 

app/models/buy_crypto_order.rb

@@ -10,17 +10,14 @@
 #  status            :string           not null
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
-#  currency_id       :bigint           not null
 #  user_id           :bigint           not null
 #
 # Indexes
 #
-#  index_buy_crypto_orders_on_currency_id  (currency_id)
+#  index_buy_crypto_orders_on_user_id  (user_id)
-#  index_buy_crypto_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 class BuyCryptoOrder < ApplicationRecord
@@ -28,7 +25,6 @@ class BuyCryptoOrder < ApplicationRecord
   include Notifiable
 
   belongs_to :user
-  belongs_to :currency
 
   monetize :paid_amount_cents
 

app/models/currency.rb

@@ -1,14 +0,0 @@
-# frozen_string_literal: true
-
-# == Schema Information
-#
-# Table name: currencies
-#
-#  id         :bigint           not null, primary key
-#  name       :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#
-class Currency < ApplicationRecord
-  validates :name, presence: true
-end

app/models/sell_crypto_order.rb

@@ -10,17 +10,14 @@
 #  status                :string           not null
 #  created_at            :datetime         not null
 #  updated_at            :datetime         not null
-#  currency_id           :bigint           not null
 #  user_id               :bigint           not null
 #
 # Indexes
 #
-#  index_sell_crypto_orders_on_currency_id  (currency_id)
+#  index_sell_crypto_orders_on_user_id  (user_id)
-#  index_sell_crypto_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 class SellCryptoOrder < ApplicationRecord
@@ -28,7 +25,6 @@ class SellCryptoOrder < ApplicationRecord
   include Notifiable
 
   belongs_to :user
-  belongs_to :currency
 
   monetize :received_amount_cents
 
@@ -41,7 +37,7 @@ class SellCryptoOrder < ApplicationRecord
     "
     💸 New sell crypto order! 💸\n
     user: #{user.email} \n
-    amount: #{paid_amount} #{currency.name}
+    amount: #{paid_amount} CAKE
     "
   end
 end

app/models/stake_order.rb

@@ -4,23 +4,20 @@
 #
 # Table name: stake_orders
 #
-#  id          :bigint           not null, primary key
+#  id         :bigint           not null, primary key
-#  amount      :decimal(20, 10)  default(0.0), not null
+#  amount     :decimal(20, 10)  default(0.0), not null
-#  pool_name   :string           not null
+#  pool_name  :string           not null
-#  status      :string           not null
+#  status     :string           not null
-#  created_at  :datetime         not null
+#  created_at :datetime         not null
-#  updated_at  :datetime         not null
+#  updated_at :datetime         not null
-#  currency_id :bigint
+#  user_id    :bigint           not null
-#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_stake_orders_on_currency_id  (currency_id)
+#  index_stake_orders_on_user_id  (user_id)
-#  index_stake_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 class StakeOrder < ApplicationRecord
@@ -28,7 +25,6 @@ class StakeOrder < ApplicationRecord
   include Notifiable
 
   belongs_to :user
-  belongs_to :currency
 
   validates :pool_name, presence: true
   validates :amount, presence: true

app/models/user.rb

@@ -29,7 +29,7 @@ class User < ApplicationRecord
 
   has_many :documents, class_name: "UserDocument", dependent: :destroy
   has_many :stake_orders, dependent: :restrict_with_error
-  has_many :balances, dependent: :restrict_with_error
+  has_one :balance, dependent: :restrict_with_error
   has_one :fiat_balance, dependent: :restrict_with_error
 
   validates :first_name, :last_name, :email, presence: true

app/services/create_user_balances.rb

@@ -24,13 +24,8 @@ class CreateUserBalances
   end
 
   def create_balances
-    Currency.in_batches.each do |relation|
+    Balance.find_or_create_by(
-      relation.each do |currency|
+      user_id: user.id
-        Balance.find_or_create_by(
+    )
-          user_id: user.id,
-          currency_id: currency.id,
-        )
-      end
-    end
   end
 end

config/locales/pt-BR.yml

@@ -9,10 +9,6 @@ pt-BR:
         one: Administrador
         other: Administradores
 
-      currency:
-        one: Moeda
-        other: Moedas
-
       balance:
         one: Saldo
         other: Saldos
@@ -46,9 +42,6 @@ pt-BR:
         amount_formatted: Quantia
         amount_cents: Quantia
 
-      currency:
-        name: Nome
-
     errors:
       models:
         balance:

db/migrate/20210828041104_drop_currency.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+class DropCurrency < ActiveRecord::Migration[6.1]
+  def up
+    remove_reference(:balances, :currency, index: true, foreign_key: true)
+    remove_reference(:buy_crypto_orders, :currency, index: true, foreign_key: true)
+    remove_reference(:sell_crypto_orders, :currency, index: true, foreign_key: true)
+    remove_reference(:stake_orders, :currency, index: true, foreign_key: true)
+
+    drop_table(:currencies)
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_08_18_185019) do
+ActiveRecord::Schema.define(version: 2021_08_28_041104) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -57,32 +57,22 @@ ActiveRecord::Schema.define(version: 2021_08_18_185019) do
 
   create_table "balances", force: :cascade do |t|
     t.bigint "user_id", null: false
-    t.bigint "currency_id", null: false
     t.decimal "amount", precision: 20, scale: 10, default: "0.0", null: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.index ["currency_id"], name: "index_balances_on_currency_id"
     t.index ["user_id"], name: "index_balances_on_user_id"
   end
 
   create_table "buy_crypto_orders", force: :cascade do |t|
     t.bigint "user_id", null: false
-    t.bigint "currency_id", null: false
     t.string "status", null: false
     t.integer "paid_amount_cents", default: 0, null: false
     t.decimal "received_amount", precision: 20, scale: 10, default: "0.0", null: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.index ["currency_id"], name: "index_buy_crypto_orders_on_currency_id"
     t.index ["user_id"], name: "index_buy_crypto_orders_on_user_id"
   end
 
-  create_table "currencies", force: :cascade do |t|
-    t.string "name", null: false
-    t.datetime "created_at", precision: 6, null: false
-    t.datetime "updated_at", precision: 6, null: false
-  end
-
   create_table "fiat_balances", force: :cascade do |t|
     t.bigint "user_id", null: false
     t.integer "amount_cents", default: 0, null: false
@@ -94,13 +84,11 @@ ActiveRecord::Schema.define(version: 2021_08_18_185019) do
 
   create_table "sell_crypto_orders", force: :cascade do |t|
     t.bigint "user_id", null: false
-    t.bigint "currency_id", null: false
     t.string "status", null: false
     t.decimal "paid_amount", precision: 20, scale: 10, default: "0.0", null: false
     t.integer "received_amount_cents", default: 0, null: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.index ["currency_id"], name: "index_sell_crypto_orders_on_currency_id"
     t.index ["user_id"], name: "index_sell_crypto_orders_on_user_id"
   end
 
@@ -111,8 +99,6 @@ ActiveRecord::Schema.define(version: 2021_08_18_185019) do
     t.decimal "amount", precision: 20, scale: 10, default: "0.0", null: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.bigint "currency_id"
-    t.index ["currency_id"], name: "index_stake_orders_on_currency_id"
     t.index ["user_id"], name: "index_stake_orders_on_user_id"
   end
 
@@ -151,14 +137,10 @@ ActiveRecord::Schema.define(version: 2021_08_18_185019) do
 
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
-  add_foreign_key "balances", "currencies"
   add_foreign_key "balances", "users"
-  add_foreign_key "buy_crypto_orders", "currencies"
   add_foreign_key "buy_crypto_orders", "users"
   add_foreign_key "fiat_balances", "users"
-  add_foreign_key "sell_crypto_orders", "currencies"
   add_foreign_key "sell_crypto_orders", "users"
-  add_foreign_key "stake_orders", "currencies"
   add_foreign_key "stake_orders", "users"
   add_foreign_key "user_documents", "users"
 end

db/seeds.rb

@@ -2,8 +2,6 @@
 
 AdminUser.create!(email: "admin@example.com", password: "password")
 
-Currency.create!(name: "CAKE")
-
 User.create!(
   first_name: "Test",
   last_name: "User",

erd.svg

@@ -4,222 +4,180 @@
 <!-- Generated by graphviz version 2.48.0 (0)
  -->
 <!-- Title: XStake Pages: 1 -->
-<svg width="606pt" height="724pt"
+<svg width="606pt" height="674pt"
- viewBox="0.00 0.00 605.60 724.10" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+ viewBox="0.00 0.00 605.60 673.60" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(28.8 695.3)">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(28.8 644.8)">
 <title>XStake</title>
-<polygon fill="white" stroke="transparent" points="-28.8,28.8 -28.8,-695.3 576.8,-695.3 576.8,28.8 -28.8,28.8"/>
+<polygon fill="white" stroke="transparent" points="-28.8,28.8 -28.8,-644.8 576.8,-644.8 576.8,28.8 -28.8,28.8"/>
-<text text-anchor="middle" x="274" y="-652.1" font-family="Arial Bold" font-size="13.00">XStake domain model</text>
+<text text-anchor="middle" x="274" y="-601.6" font-family="Arial Bold" font-size="13.00">XStake domain model</text>
 <!-- m_AdminUser -->
 <g id="node1" class="node">
 <title>m_AdminUser</title>
-<path fill="none" stroke="black" d="M12,-40C12,-40 150,-40 150,-40 156,-40 162,-46 162,-52 162,-52 162,-123 162,-123 162,-129 156,-135 150,-135 150,-135 12,-135 12,-135 6,-135 0,-129 0,-123 0,-123 0,-52 0,-52 0,-46 6,-40 12,-40"/>
+<path fill="none" stroke="black" d="M12,-100C12,-100 150,-100 150,-100 156,-100 162,-106 162,-112 162,-112 162,-183 162,-183 162,-189 156,-195 150,-195 150,-195 12,-195 12,-195 6,-195 0,-189 0,-183 0,-183 0,-112 0,-112 0,-106 6,-100 12,-100"/>
-<text text-anchor="start" x="49" y="-122.2" font-family="Arial Bold" font-size="11.00">AdminUser</text>
+<text text-anchor="start" x="49" y="-182.2" font-family="Arial Bold" font-size="11.00">AdminUser</text>
-<polyline fill="none" stroke="black" points="0,-115 162,-115 "/>
+<polyline fill="none" stroke="black" points="0,-175 162,-175 "/>
-<text text-anchor="start" x="7" y="-101.5" font-family="Arial" font-size="10.00">email </text>
+<text text-anchor="start" x="7" y="-161.5" font-family="Arial" font-size="10.00">email </text>
-<text text-anchor="start" x="34" y="-101.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
+<text text-anchor="start" x="34" y="-161.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
-<text text-anchor="start" x="7" y="-88.5" font-family="Arial" font-size="10.00">encrypted_password </text>
+<text text-anchor="start" x="7" y="-148.5" font-family="Arial" font-size="10.00">encrypted_password </text>
-<text text-anchor="start" x="101" y="-88.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="101" y="-148.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-75.5" font-family="Arial" font-size="10.00">remember_created_at </text>
+<text text-anchor="start" x="7" y="-135.5" font-family="Arial" font-size="10.00">remember_created_at </text>
-<text text-anchor="start" x="105" y="-75.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="105" y="-135.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-62.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
+<text text-anchor="start" x="7" y="-122.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
-<text text-anchor="start" x="117" y="-62.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="117" y="-122.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-49.5" font-family="Arial" font-size="10.00">reset_password_token </text>
+<text text-anchor="start" x="7" y="-109.5" font-family="Arial" font-size="10.00">reset_password_token </text>
-<text text-anchor="start" x="109" y="-49.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
+<text text-anchor="start" x="109" y="-109.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
 </g>
 <!-- m_Balance -->
 <g id="node2" class="node">
 <title>m_Balance</title>
-<path fill="none" stroke="black" d="M223,-560C223,-560 343,-560 343,-560 349,-560 355,-566 355,-572 355,-572 355,-617 355,-617 355,-623 349,-629 343,-629 343,-629 223,-629 223,-629 217,-629 211,-623 211,-617 211,-617 211,-572 211,-572 211,-566 217,-560 223,-560"/>
+<path fill="none" stroke="black" d="M223,-522.5C223,-522.5 343,-522.5 343,-522.5 349,-522.5 355,-528.5 355,-534.5 355,-534.5 355,-566.5 355,-566.5 355,-572.5 349,-578.5 343,-578.5 343,-578.5 223,-578.5 223,-578.5 217,-578.5 211,-572.5 211,-566.5 211,-566.5 211,-534.5 211,-534.5 211,-528.5 217,-522.5 223,-522.5"/>
-<text text-anchor="start" x="259.5" y="-616.2" font-family="Arial Bold" font-size="11.00">Balance</text>
+<text text-anchor="start" x="259.5" y="-565.7" font-family="Arial Bold" font-size="11.00">Balance</text>
-<polyline fill="none" stroke="black" points="211,-609 355,-609 "/>
+<polyline fill="none" stroke="black" points="211,-558.5 355,-558.5 "/>
-<text text-anchor="start" x="218" y="-595.5" font-family="Arial" font-size="10.00">amount </text>
+<text text-anchor="start" x="218" y="-545.5" font-family="Arial" font-size="10.00">amount </text>
-<text text-anchor="start" x="254" y="-595.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="254" y="-545.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="218" y="-582.5" font-family="Arial" font-size="10.00">currency_id </text>
+<text text-anchor="start" x="218" y="-532.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="272" y="-582.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="253" y="-532.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="218" y="-569.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="253" y="-569.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_PaperTrail::Version -->
-<g id="node6" class="node">
+<g id="node5" class="node">
 <title>m_PaperTrail::Version</title>
-<path fill="none" stroke="black" d="M416,-310C416,-310 536,-310 536,-310 542,-310 548,-316 548,-322 548,-322 548,-393 548,-393 548,-399 542,-405 536,-405 536,-405 416,-405 416,-405 410,-405 404,-399 404,-393 404,-393 404,-322 404,-322 404,-316 410,-310 416,-310"/>
+<path fill="none" stroke="black" d="M416,-400C416,-400 536,-400 536,-400 542,-400 548,-406 548,-412 548,-412 548,-483 548,-483 548,-489 542,-495 536,-495 536,-495 416,-495 416,-495 410,-495 404,-489 404,-483 404,-483 404,-412 404,-412 404,-406 410,-400 416,-400"/>
-<text text-anchor="start" x="423.5" y="-392.2" font-family="Arial Bold" font-size="11.00">PaperTrail::Version</text>
+<text text-anchor="start" x="423.5" y="-482.2" font-family="Arial Bold" font-size="11.00">PaperTrail::Version</text>
-<polyline fill="none" stroke="black" points="404,-385 548,-385 "/>
+<polyline fill="none" stroke="black" points="404,-475 548,-475 "/>
-<text text-anchor="start" x="411" y="-371.5" font-family="Arial" font-size="10.00">event </text>
+<text text-anchor="start" x="411" y="-461.5" font-family="Arial" font-size="10.00">event </text>
-<text text-anchor="start" x="439" y="-371.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="439" y="-461.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="411" y="-358.5" font-family="Arial" font-size="10.00">item_id </text>
+<text text-anchor="start" x="411" y="-448.5" font-family="Arial" font-size="10.00">item_id </text>
-<text text-anchor="start" x="446" y="-358.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="446" y="-448.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="411" y="-345.5" font-family="Arial" font-size="10.00">item_type </text>
+<text text-anchor="start" x="411" y="-435.5" font-family="Arial" font-size="10.00">item_type </text>
-<text text-anchor="start" x="457" y="-345.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="457" y="-435.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="411" y="-332.5" font-family="Arial" font-size="10.00">object </text>
+<text text-anchor="start" x="411" y="-422.5" font-family="Arial" font-size="10.00">object </text>
-<text text-anchor="start" x="441" y="-332.5" font-family="Arial Italic" font-size="10.00" fill="#999999">text</text>
+<text text-anchor="start" x="441" y="-422.5" font-family="Arial Italic" font-size="10.00" fill="#999999">text</text>
-<text text-anchor="start" x="411" y="-319.5" font-family="Arial" font-size="10.00">whodunnit </text>
+<text text-anchor="start" x="411" y="-409.5" font-family="Arial" font-size="10.00">whodunnit </text>
-<text text-anchor="start" x="459" y="-319.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
+<text text-anchor="start" x="459" y="-409.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
 </g>
 <!-- m_Balance&#45;&gt;m_PaperTrail::Version -->
 <g id="edge1" class="edge">
 <title>m_Balance&#45;&gt;m_PaperTrail::Version</title>
-<path fill="none" stroke="black" d="M351.08,-559.9C357.13,-555.47 362.89,-550.66 368,-545.5 405.48,-507.62 434.29,-453.96 452.52,-413.67"/>
+<path fill="none" stroke="black" d="M339.73,-522.35C349.2,-517.46 358.9,-512.38 368,-507.5 377,-502.67 386.38,-497.55 395.69,-492.41"/>
-<polygon fill="black" stroke="black" points="455.47,-414.78 456.25,-405.28 449.71,-412.22 455.47,-414.78"/>
+<polygon fill="black" stroke="black" points="397.49,-495.02 403.84,-487.9 394.44,-489.5 397.49,-495.02"/>
 </g>
 <!-- m_BuyCryptoOrder -->
 <g id="node3" class="node">
 <title>m_BuyCryptoOrder</title>
-<path fill="none" stroke="black" d="M210,-435C210,-435 356,-435 356,-435 362,-435 368,-441 368,-447 368,-447 368,-518 368,-518 368,-524 362,-530 356,-530 356,-530 210,-530 210,-530 204,-530 198,-524 198,-518 198,-518 198,-447 198,-447 198,-441 204,-435 210,-435"/>
+<path fill="none" stroke="black" d="M210,-410.5C210,-410.5 356,-410.5 356,-410.5 362,-410.5 368,-416.5 368,-422.5 368,-422.5 368,-480.5 368,-480.5 368,-486.5 362,-492.5 356,-492.5 356,-492.5 210,-492.5 210,-492.5 204,-492.5 198,-486.5 198,-480.5 198,-480.5 198,-422.5 198,-422.5 198,-416.5 204,-410.5 210,-410.5"/>
-<text text-anchor="start" x="237" y="-517.2" font-family="Arial Bold" font-size="11.00">BuyCryptoOrder</text>
+<text text-anchor="start" x="237" y="-479.7" font-family="Arial Bold" font-size="11.00">BuyCryptoOrder</text>
-<polyline fill="none" stroke="black" points="198,-510 368,-510 "/>
+<polyline fill="none" stroke="black" points="198,-472.5 368,-472.5 "/>
-<text text-anchor="start" x="205" y="-496.5" font-family="Arial" font-size="10.00">currency_id </text>
+<text text-anchor="start" x="205" y="-459.5" font-family="Arial" font-size="10.00">paid_amount_cents </text>
-<text text-anchor="start" x="259" y="-496.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="293" y="-459.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
-<text text-anchor="start" x="205" y="-483.5" font-family="Arial" font-size="10.00">paid_amount_cents </text>
+<text text-anchor="start" x="205" y="-446.5" font-family="Arial" font-size="10.00">received_amount </text>
-<text text-anchor="start" x="293" y="-483.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
+<text text-anchor="start" x="283" y="-446.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="205" y="-470.5" font-family="Arial" font-size="10.00">received_amount </text>
+<text text-anchor="start" x="205" y="-433.5" font-family="Arial" font-size="10.00">status </text>
-<text text-anchor="start" x="283" y="-470.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="236" y="-433.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="205" y="-457.5" font-family="Arial" font-size="10.00">status </text>
+<text text-anchor="start" x="205" y="-420.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="236" y="-457.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="240" y="-420.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="205" y="-444.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="240" y="-444.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-</g>
-<!-- m_Currency -->
-<g id="node4" class="node">
-<title>m_Currency</title>
-<path fill="none" stroke="black" d="M21,-398C21,-398 141,-398 141,-398 147,-398 153,-404 153,-410 153,-410 153,-429 153,-429 153,-435 147,-441 141,-441 141,-441 21,-441 21,-441 15,-441 9,-435 9,-429 9,-429 9,-410 9,-410 9,-404 15,-398 21,-398"/>
-<text text-anchor="start" x="54.5" y="-428.2" font-family="Arial Bold" font-size="11.00">Currency</text>
-<polyline fill="none" stroke="black" points="9,-421 153,-421 "/>
-<text text-anchor="start" x="16" y="-407.5" font-family="Arial" font-size="10.00">name </text>
-<text text-anchor="start" x="44" y="-407.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-</g>
-<!-- m_Currency&#45;&gt;m_Balance -->
-<g id="edge11" class="edge">
-<title>m_Currency&#45;&gt;m_Balance</title>
-<path fill="none" stroke="black" d="M98.77,-441.41C119.93,-468.12 158.38,-513.63 198,-545.5 201.86,-548.61 205.95,-551.65 210.15,-554.6"/>
-<polygon fill="black" stroke="black" points="208.6,-557.35 217.82,-559.79 212.14,-552.14 208.6,-557.35"/>
-</g>
-<!-- m_Currency&#45;&gt;m_BuyCryptoOrder -->
-<g id="edge8" class="edge">
-<title>m_Currency&#45;&gt;m_BuyCryptoOrder</title>
-<path fill="none" stroke="black" d="M150.27,-441C162.68,-444.91 175.82,-449.05 188.81,-453.14"/>
-<polygon fill="black" stroke="black" points="188.23,-456.27 197.76,-455.97 190.13,-450.26 188.23,-456.27"/>
-</g>
-<!-- m_SellCryptoOrder -->
-<g id="node7" class="node">
-<title>m_SellCryptoOrder</title>
-<path fill="none" stroke="black" d="M214.5,-310C214.5,-310 351.5,-310 351.5,-310 357.5,-310 363.5,-316 363.5,-322 363.5,-322 363.5,-393 363.5,-393 363.5,-399 357.5,-405 351.5,-405 351.5,-405 214.5,-405 214.5,-405 208.5,-405 202.5,-399 202.5,-393 202.5,-393 202.5,-322 202.5,-322 202.5,-316 208.5,-310 214.5,-310"/>
-<text text-anchor="start" x="238" y="-392.2" font-family="Arial Bold" font-size="11.00">SellCryptoOrder</text>
-<polyline fill="none" stroke="black" points="202.5,-385 363.5,-385 "/>
-<text text-anchor="start" x="210" y="-371.5" font-family="Arial" font-size="10.00">currency_id </text>
-<text text-anchor="start" x="264" y="-371.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="210" y="-358.5" font-family="Arial" font-size="10.00">paid_amount </text>
-<text text-anchor="start" x="269" y="-358.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="210" y="-345.5" font-family="Arial" font-size="10.00">received_amount_cents </text>
-<text text-anchor="start" x="317" y="-345.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
-<text text-anchor="start" x="210" y="-332.5" font-family="Arial" font-size="10.00">status </text>
-<text text-anchor="start" x="241" y="-332.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="210" y="-319.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="245" y="-319.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-</g>
-<!-- m_Currency&#45;&gt;m_SellCryptoOrder -->
-<g id="edge10" class="edge">
-<title>m_Currency&#45;&gt;m_SellCryptoOrder</title>
-<path fill="none" stroke="black" d="M151.39,-397.99C165.03,-393.76 179.51,-389.27 193.68,-384.88"/>
-<polygon fill="black" stroke="black" points="194.78,-387.84 202.45,-382.16 192.92,-381.82 194.78,-387.84"/>
-</g>
-<!-- m_StakeOrder -->
-<g id="node8" class="node">
-<title>m_StakeOrder</title>
-<path fill="none" stroke="black" d="M223,-185C223,-185 343,-185 343,-185 349,-185 355,-191 355,-197 355,-197 355,-268 355,-268 355,-274 349,-280 343,-280 343,-280 223,-280 223,-280 217,-280 211,-274 211,-268 211,-268 211,-197 211,-197 211,-191 217,-185 223,-185"/>
-<text text-anchor="start" x="251" y="-267.2" font-family="Arial Bold" font-size="11.00">StakeOrder</text>
-<polyline fill="none" stroke="black" points="211,-260 355,-260 "/>
-<text text-anchor="start" x="218" y="-246.5" font-family="Arial" font-size="10.00">amount </text>
-<text text-anchor="start" x="254" y="-246.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="218" y="-233.5" font-family="Arial" font-size="10.00">currency_id </text>
-<text text-anchor="start" x="272" y="-233.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) FK</text>
-<text text-anchor="start" x="218" y="-220.5" font-family="Arial" font-size="10.00">pool_name </text>
-<text text-anchor="start" x="269" y="-220.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="218" y="-207.5" font-family="Arial" font-size="10.00">status </text>
-<text text-anchor="start" x="249" y="-207.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="218" y="-194.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="253" y="-194.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-</g>
-<!-- m_Currency&#45;&gt;m_StakeOrder -->
-<g id="edge12" class="edge">
-<title>m_Currency&#45;&gt;m_StakeOrder</title>
-<path fill="none" stroke="black" d="M100.24,-397.8C122.24,-372.15 160.91,-328.76 198,-295.5 201.47,-292.38 205.09,-289.26 208.79,-286.17"/>
-<polygon fill="black" stroke="black" points="211.04,-288.4 215.99,-280.25 207.04,-283.53 211.04,-288.4"/>
 </g>
 <!-- m_FiatBalance -->
-<g id="node5" class="node">
+<g id="node4" class="node">
 <title>m_FiatBalance</title>
-<path fill="none" stroke="black" d="M223,-86C223,-86 343,-86 343,-86 349,-86 355,-92 355,-98 355,-98 355,-143 355,-143 355,-149 349,-155 343,-155 343,-155 223,-155 223,-155 217,-155 211,-149 211,-143 211,-143 211,-98 211,-98 211,-92 217,-86 223,-86"/>
+<path fill="none" stroke="black" d="M223,-311C223,-311 343,-311 343,-311 349,-311 355,-317 355,-323 355,-323 355,-368 355,-368 355,-374 349,-380 343,-380 343,-380 223,-380 223,-380 217,-380 211,-374 211,-368 211,-368 211,-323 211,-323 211,-317 217,-311 223,-311"/>
-<text text-anchor="start" x="250" y="-142.2" font-family="Arial Bold" font-size="11.00">FiatBalance</text>
+<text text-anchor="start" x="250" y="-367.2" font-family="Arial Bold" font-size="11.00">FiatBalance</text>
-<polyline fill="none" stroke="black" points="211,-135 355,-135 "/>
+<polyline fill="none" stroke="black" points="211,-360 355,-360 "/>
-<text text-anchor="start" x="218" y="-121.5" font-family="Arial" font-size="10.00">amount_cents </text>
+<text text-anchor="start" x="218" y="-346.5" font-family="Arial" font-size="10.00">amount_cents </text>
-<text text-anchor="start" x="283" y="-121.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
+<text text-anchor="start" x="283" y="-346.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
-<text text-anchor="start" x="218" y="-108.5" font-family="Arial" font-size="10.00">amount_currency </text>
+<text text-anchor="start" x="218" y="-333.5" font-family="Arial" font-size="10.00">amount_currency </text>
-<text text-anchor="start" x="297" y="-108.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="297" y="-333.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="218" y="-95.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="218" y="-320.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="253" y="-95.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="253" y="-320.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_FiatBalance&#45;&gt;m_PaperTrail::Version -->
 <g id="edge2" class="edge">
 <title>m_FiatBalance&#45;&gt;m_PaperTrail::Version</title>
-<path fill="none" stroke="black" d="M351.08,-155.1C357.13,-159.53 362.89,-164.34 368,-169.5 405.48,-207.38 434.29,-261.04 452.52,-301.33"/>
+<path fill="none" stroke="black" d="M348.66,-380.03C363.78,-388.1 380.05,-396.79 395.72,-405.16"/>
-<polygon fill="black" stroke="black" points="449.71,-302.78 456.25,-309.72 455.47,-300.22 449.71,-302.78"/>
+<polygon fill="black" stroke="black" points="394.42,-408.04 403.84,-409.5 397.39,-402.48 394.42,-408.04"/>
+</g>
+<!-- m_SellCryptoOrder -->
+<g id="node6" class="node">
+<title>m_SellCryptoOrder</title>
+<path fill="none" stroke="black" d="M214.5,-198.5C214.5,-198.5 351.5,-198.5 351.5,-198.5 357.5,-198.5 363.5,-204.5 363.5,-210.5 363.5,-210.5 363.5,-268.5 363.5,-268.5 363.5,-274.5 357.5,-280.5 351.5,-280.5 351.5,-280.5 214.5,-280.5 214.5,-280.5 208.5,-280.5 202.5,-274.5 202.5,-268.5 202.5,-268.5 202.5,-210.5 202.5,-210.5 202.5,-204.5 208.5,-198.5 214.5,-198.5"/>
+<text text-anchor="start" x="238" y="-267.7" font-family="Arial Bold" font-size="11.00">SellCryptoOrder</text>
+<polyline fill="none" stroke="black" points="202.5,-260.5 363.5,-260.5 "/>
+<text text-anchor="start" x="210" y="-247.5" font-family="Arial" font-size="10.00">paid_amount </text>
+<text text-anchor="start" x="269" y="-247.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="210" y="-234.5" font-family="Arial" font-size="10.00">received_amount_cents </text>
+<text text-anchor="start" x="317" y="-234.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
+<text text-anchor="start" x="210" y="-221.5" font-family="Arial" font-size="10.00">status </text>
+<text text-anchor="start" x="241" y="-221.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="210" y="-208.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="245" y="-208.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+</g>
+<!-- m_StakeOrder -->
+<g id="node7" class="node">
+<title>m_StakeOrder</title>
+<path fill="none" stroke="black" d="M223,-86.5C223,-86.5 343,-86.5 343,-86.5 349,-86.5 355,-92.5 355,-98.5 355,-98.5 355,-156.5 355,-156.5 355,-162.5 349,-168.5 343,-168.5 343,-168.5 223,-168.5 223,-168.5 217,-168.5 211,-162.5 211,-156.5 211,-156.5 211,-98.5 211,-98.5 211,-92.5 217,-86.5 223,-86.5"/>
+<text text-anchor="start" x="251" y="-155.7" font-family="Arial Bold" font-size="11.00">StakeOrder</text>
+<polyline fill="none" stroke="black" points="211,-148.5 355,-148.5 "/>
+<text text-anchor="start" x="218" y="-135.5" font-family="Arial" font-size="10.00">amount </text>
+<text text-anchor="start" x="254" y="-135.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="218" y="-122.5" font-family="Arial" font-size="10.00">pool_name </text>
+<text text-anchor="start" x="269" y="-122.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="218" y="-109.5" font-family="Arial" font-size="10.00">status </text>
+<text text-anchor="start" x="249" y="-109.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="218" y="-96.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="253" y="-96.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_User -->
-<g id="node9" class="node">
+<g id="node8" class="node">
 <title>m_User</title>
-<path fill="none" stroke="black" d="M12,-165.5C12,-165.5 150,-165.5 150,-165.5 156,-165.5 162,-171.5 162,-177.5 162,-177.5 162,-287.5 162,-287.5 162,-293.5 156,-299.5 150,-299.5 150,-299.5 12,-299.5 12,-299.5 6,-299.5 0,-293.5 0,-287.5 0,-287.5 0,-177.5 0,-177.5 0,-171.5 6,-165.5 12,-165.5"/>
+<path fill="none" stroke="black" d="M12,-225.5C12,-225.5 150,-225.5 150,-225.5 156,-225.5 162,-231.5 162,-237.5 162,-237.5 162,-347.5 162,-347.5 162,-353.5 156,-359.5 150,-359.5 150,-359.5 12,-359.5 12,-359.5 6,-359.5 0,-353.5 0,-347.5 0,-347.5 0,-237.5 0,-237.5 0,-231.5 6,-225.5 12,-225.5"/>
-<text text-anchor="start" x="66.5" y="-286.7" font-family="Arial Bold" font-size="11.00">User</text>
+<text text-anchor="start" x="66.5" y="-346.7" font-family="Arial Bold" font-size="11.00">User</text>
-<polyline fill="none" stroke="black" points="0,-279.5 162,-279.5 "/>
+<polyline fill="none" stroke="black" points="0,-339.5 162,-339.5 "/>
-<text text-anchor="start" x="7" y="-266.5" font-family="Arial" font-size="10.00">email </text>
+<text text-anchor="start" x="7" y="-326.5" font-family="Arial" font-size="10.00">email </text>
-<text text-anchor="start" x="34" y="-266.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
+<text text-anchor="start" x="34" y="-326.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
-<text text-anchor="start" x="7" y="-253.5" font-family="Arial" font-size="10.00">encrypted_password </text>
+<text text-anchor="start" x="7" y="-313.5" font-family="Arial" font-size="10.00">encrypted_password </text>
-<text text-anchor="start" x="101" y="-253.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="101" y="-313.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-240.5" font-family="Arial" font-size="10.00">first_name </text>
+<text text-anchor="start" x="7" y="-300.5" font-family="Arial" font-size="10.00">first_name </text>
-<text text-anchor="start" x="56" y="-240.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="56" y="-300.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-227.5" font-family="Arial" font-size="10.00">last_name </text>
+<text text-anchor="start" x="7" y="-287.5" font-family="Arial" font-size="10.00">last_name </text>
-<text text-anchor="start" x="56" y="-227.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="56" y="-287.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-214.5" font-family="Arial" font-size="10.00">remember_created_at </text>
+<text text-anchor="start" x="7" y="-274.5" font-family="Arial" font-size="10.00">remember_created_at </text>
-<text text-anchor="start" x="105" y="-214.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="105" y="-274.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-201.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
+<text text-anchor="start" x="7" y="-261.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
-<text text-anchor="start" x="117" y="-201.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="117" y="-261.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-188.5" font-family="Arial" font-size="10.00">reset_password_token </text>
+<text text-anchor="start" x="7" y="-248.5" font-family="Arial" font-size="10.00">reset_password_token </text>
-<text text-anchor="start" x="109" y="-188.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
+<text text-anchor="start" x="109" y="-248.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
-<text text-anchor="start" x="7" y="-175.5" font-family="Arial" font-size="10.00">wallet_address </text>
+<text text-anchor="start" x="7" y="-235.5" font-family="Arial" font-size="10.00">wallet_address </text>
-<text text-anchor="start" x="76" y="-175.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
+<text text-anchor="start" x="76" y="-235.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
 </g>
 <!-- m_User&#45;&gt;m_Balance -->
 <g id="edge5" class="edge">
 <title>m_User&#45;&gt;m_Balance</title>
-<path fill="none" stroke="black" d="M122.66,-299.86C136.72,-325.37 151.54,-355.1 162,-383.5 187.49,-452.71 154.51,-485.93 198,-545.5 200.01,-548.25 202.23,-550.88 204.6,-553.37"/>
+<path fill="none" stroke="black" d="M105.93,-359.84C125.07,-405.99 155.71,-466.12 198,-507.5 203.62,-513 210.09,-517.95 216.88,-522.36"/>
-<polygon fill="black" stroke="black" points="202.54,-555.76 211.23,-559.69 206.89,-551.2 202.54,-555.76"/>
 </g>
 <!-- m_User&#45;&gt;m_BuyCryptoOrder -->
 <g id="edge7" class="edge">
 <title>m_User&#45;&gt;m_BuyCryptoOrder</title>
-<path fill="none" stroke="black" d="M115.31,-299.85C135.98,-337.74 164.89,-384.52 198,-420.5 200.55,-423.28 203.25,-426.01 206.04,-428.69"/>
+<path fill="none" stroke="black" d="M154.65,-359.73C168.74,-371.99 183.61,-384.4 198,-395.5 202.09,-398.65 206.35,-401.83 210.69,-404.97"/>
-<polygon fill="black" stroke="black" points="203.97,-431.07 212.73,-434.85 208.24,-426.43 203.97,-431.07"/>
+<polygon fill="black" stroke="black" points="208.89,-407.55 218.05,-410.22 212.55,-402.42 208.89,-407.55"/>
 </g>
 <!-- m_User&#45;&gt;m_FiatBalance -->
 <g id="edge6" class="edge">
 <title>m_User&#45;&gt;m_FiatBalance</title>
-<path fill="none" stroke="black" d="M162.2,-187.59C181.54,-176.76 201.91,-165.35 220.26,-155.07"/>
+<path fill="none" stroke="black" d="M162.2,-313.75C178.28,-318.01 195.08,-322.46 210.83,-326.64"/>
 </g>
 <!-- m_User&#45;&gt;m_SellCryptoOrder -->
-<g id="edge9" class="edge">
+<g id="edge8" class="edge">
 <title>m_User&#45;&gt;m_SellCryptoOrder</title>
-<path fill="none" stroke="black" d="M162.2,-282.62C173.96,-289.98 186.11,-297.57 197.95,-304.97"/>
+<path fill="none" stroke="black" d="M162.2,-271.25C172.55,-268.5 183.21,-265.68 193.69,-262.9"/>
-<polygon fill="black" stroke="black" points="196.38,-307.7 205.68,-309.8 199.72,-302.36 196.38,-307.7"/>
+<polygon fill="black" stroke="black" points="194.55,-265.93 202.44,-260.58 192.93,-259.84 194.55,-265.93"/>
 </g>
 <!-- m_User&#45;&gt;m_StakeOrder -->
 <g id="edge4" class="edge">
 <title>m_User&#45;&gt;m_StakeOrder</title>
-<path fill="none" stroke="black" d="M162.2,-232.5C175.14,-232.5 188.54,-232.5 201.49,-232.5"/>
+<path fill="none" stroke="black" d="M149.62,-225.41C165.09,-211.08 181.77,-196.39 198,-183.5 202.04,-180.29 206.27,-177.07 210.58,-173.9"/>
-<polygon fill="black" stroke="black" points="201.83,-235.65 210.83,-232.5 201.83,-229.35 201.83,-235.65"/>
+<polygon fill="black" stroke="black" points="212.46,-176.43 217.91,-168.6 208.77,-171.32 212.46,-176.43"/>
 </g>
 <!-- m_UserDocument -->
-<g id="node10" class="node">
+<g id="node9" class="node">
 <title>m_UserDocument</title>
 <path fill="none" stroke="black" d="M223,-0.5C223,-0.5 343,-0.5 343,-0.5 349,-0.5 355,-6.5 355,-12.5 355,-12.5 355,-44.5 355,-44.5 355,-50.5 349,-56.5 343,-56.5 343,-56.5 223,-56.5 223,-56.5 217,-56.5 211,-50.5 211,-44.5 211,-44.5 211,-12.5 211,-12.5 211,-6.5 217,-0.5 223,-0.5"/>
 <text text-anchor="start" x="241.5" y="-43.7" font-family="Arial Bold" font-size="11.00">UserDocument</text>
@@ -232,8 +190,8 @@
 <!-- m_User&#45;&gt;m_UserDocument -->
 <g id="edge3" class="edge">
 <title>m_User&#45;&gt;m_UserDocument</title>
-<path fill="none" stroke="black" d="M150.29,-165.23C154.45,-160.06 158.4,-154.8 162,-149.5 183.7,-117.6 171.21,-98.27 198,-70.5 200.88,-67.51 204.02,-64.71 207.33,-62.07"/>
+<path fill="none" stroke="black" d="M152.47,-225.27C155.95,-220.46 159.17,-215.52 162,-210.5 193.33,-154.91 158.09,-121.3 198,-71.5 200.61,-68.25 203.52,-65.22 206.66,-62.4"/>
-<polygon fill="black" stroke="black" points="209.43,-64.44 214.84,-56.58 205.71,-59.35 209.43,-64.44"/>
+<polygon fill="black" stroke="black" points="208.86,-64.67 213.87,-56.55 204.89,-59.78 208.86,-64.67"/>
 </g>
 </g>
 </svg>

spec/factories/balances.rb

@@ -4,27 +4,23 @@
 #
 # Table name: balances
 #
-#  id          :bigint           not null, primary key
+#  id         :bigint           not null, primary key
-#  amount      :decimal(20, 10)  default(0.0), not null
+#  amount     :decimal(20, 10)  default(0.0), not null
-#  created_at  :datetime         not null
+#  created_at :datetime         not null
-#  updated_at  :datetime         not null
+#  updated_at :datetime         not null
-#  currency_id :bigint           not null
+#  user_id    :bigint           not null
-#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_balances_on_currency_id  (currency_id)
+#  index_balances_on_user_id  (user_id)
-#  index_balances_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 FactoryBot.define do
   factory :balance do
     association :user
-    association :currency
     amount { (rand * (10000 - 0) + 0) }
   end
 end

spec/factories/buy_crypto_orders.rb

@@ -10,23 +10,19 @@
 #  status            :string           not null
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
-#  currency_id       :bigint           not null
 #  user_id           :bigint           not null
 #
 # Indexes
 #
-#  index_buy_crypto_orders_on_currency_id  (currency_id)
+#  index_buy_crypto_orders_on_user_id  (user_id)
-#  index_buy_crypto_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 FactoryBot.define do
   factory :buy_crypto_order do
     association :user
-    association :currency
     status { :processing }
     paid_amount_cents { rand(10000) }
     received_amount { rand * 10000 }

spec/factories/currencies.rb

@@ -1,16 +0,0 @@
-# frozen_string_literal: true
-
-# == Schema Information
-#
-# Table name: currencies
-#
-#  id         :bigint           not null, primary key
-#  name       :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#
-FactoryBot.define do
-  factory :currency do
-    name { "CAKE" }
-  end
-end

spec/factories/sell_crypto_orders.rb

@@ -10,23 +10,19 @@
 #  status                :string           not null
 #  created_at            :datetime         not null
 #  updated_at            :datetime         not null
-#  currency_id           :bigint           not null
 #  user_id               :bigint           not null
 #
 # Indexes
 #
-#  index_sell_crypto_orders_on_currency_id  (currency_id)
+#  index_sell_crypto_orders_on_user_id  (user_id)
-#  index_sell_crypto_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 FactoryBot.define do
   factory :sell_crypto_order do
     association :user
-    association :currency
     status { :processing }
     received_amount_cents { rand(10000) }
     paid_amount { rand * 10000 }

spec/factories/stake_orders.rb

@@ -4,23 +4,20 @@
 #
 # Table name: stake_orders
 #
-#  id          :bigint           not null, primary key
+#  id         :bigint           not null, primary key
-#  amount      :decimal(20, 10)  default(0.0), not null
+#  amount     :decimal(20, 10)  default(0.0), not null
-#  pool_name   :string           not null
+#  pool_name  :string           not null
-#  status      :string           not null
+#  status     :string           not null
-#  created_at  :datetime         not null
+#  created_at :datetime         not null
-#  updated_at  :datetime         not null
+#  updated_at :datetime         not null
-#  currency_id :bigint
+#  user_id    :bigint           not null
-#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_stake_orders_on_currency_id  (currency_id)
+#  index_stake_orders_on_user_id  (user_id)
-#  index_stake_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 FactoryBot.define do

spec/graphql/inputs/create_buy_crypto_order_attributes_input_spec.rb

@@ -6,7 +6,6 @@ describe Inputs::CreateBuyCryptoOrderAttributesInput do
   subject { described_class }
 
   describe "fields" do
-    it { is_expected.to(accept_argument("currency_id").of_type("ID!")) }
     it { is_expected.to(accept_argument("amount_cents").of_type("Int!")) }
   end
 end

spec/graphql/inputs/create_sell_crypto_order_attributes_input_spec.rb

@@ -6,7 +6,6 @@ describe Inputs::CreateSellCryptoOrderAttributesInput do
   subject { described_class }
 
   describe "fields" do
-    it { is_expected.to(accept_argument("currency_id").of_type("ID!")) }
     it { is_expected.to(accept_argument("amount").of_type("String!")) }
   end
 end

spec/graphql/mutations/create_buy_crypto_order_spec.rb

@@ -5,10 +5,9 @@ require "rails_helper"
 RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
   let(:query_string) do
     <<~GQL
-      mutation($currencyId: ID!, $amountCents: Int!) {
+      mutation($amountCents: Int!) {
         createBuyCryptoOrder(input: {
           order: {
-            currencyId: $currencyId,
             amountCents: $amountCents,
           }
         }) {
@@ -22,9 +21,6 @@ RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
             status
             paidAmountCents
             receivedAmount
-            currency {
-              name
-            }
           }
         }
       }
@@ -33,7 +29,6 @@ RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
 
   context "when the user has enough balance" do
     it "withdraws from his account and creates a buy order" do
-      currency = create(:currency)
       user = create(
         :user,
         fiat_balance: build(
@@ -42,10 +37,7 @@ RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
         ),
       )
 
-      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
-
       variables = {
-        "currencyId": currency_global_id,
         "amountCents": 90_00,
       }
 
@@ -65,9 +57,6 @@ RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
               "status" => "PROCESSING",
               "paidAmountCents" => 90_00,
               "receivedAmount" => "0.0",
-              "currency" => {
-                "name" => "CAKE",
-              },
             },
           },
         },
@@ -79,7 +68,6 @@ RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
 
   context "when the user does not have enough balance" do
     it "returns withdrawl error" do
-      currency = create(:currency)
       user = create(
         :user,
         fiat_balance: build(
@@ -88,10 +76,7 @@ RSpec.describe(Mutations::CreateBuyCryptoOrder, type: :mutation) do
         ),
       )
 
-      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
-
       variables = {
-        "currencyId": currency_global_id,
         "amountCents": 90_00,
       }
 

spec/graphql/mutations/create_sell_crypto_order_spec.rb

@@ -5,10 +5,9 @@ require "rails_helper"
 RSpec.describe(Mutations::CreateSellCryptoOrder, type: :mutation) do
   let(:query_string) do
     <<~GQL
-      mutation($currencyId: ID!, $amount: String!) {
+      mutation($amount: String!) {
         createSellCryptoOrder(input: {
           order: {
-            currencyId: $currencyId,
             amount: $amount,
           }
         }) {
@@ -22,9 +21,6 @@ RSpec.describe(Mutations::CreateSellCryptoOrder, type: :mutation) do
             status
             paidAmount
             receivedAmountCents
-            currency {
-              name
-            }
           }
         }
       }
@@ -33,18 +29,12 @@ RSpec.describe(Mutations::CreateSellCryptoOrder, type: :mutation) do
 
   context "when the user has enough balance" do
     it "withdraws from his account and creates a buy order" do
-      currency = create(:currency)
       user = create(
         :user,
-        balances: [
+        balance: build(:balance, amount: 1.0034)
-          build(:balance, currency: currency, amount: 1.0034),
-        ]
       )
 
-      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
-
       variables = {
-        "currencyId": currency_global_id,
         "amount": "0.80",
       }
 
@@ -64,32 +54,23 @@ RSpec.describe(Mutations::CreateSellCryptoOrder, type: :mutation) do
               "status" => "PROCESSING",
               "paidAmount" => "0.8",
               "receivedAmountCents" => 0,
-              "currency" => {
-                "name" => "CAKE",
-              },
             },
           },
         },
       }))
 
-      expect(user.balances.first.reload.amount.to_s).to(eq("0.2034"))
+      expect(user.balance.reload.amount.to_s).to(eq("0.2034"))
     end
   end
 
   context "when the user does not have enough balance" do
     it "returns withdrawl error" do
-      currency = create(:currency)
       user = create(
         :user,
-        balances: [
+        balance: build(:balance, amount: 0.0034)
-          build(:balance, currency: currency, amount: 0.0034),
-        ]
       )
 
-      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
-
       variables = {
-        "currencyId": currency_global_id,
         "amount": "0.80",
       }
 
@@ -115,7 +96,7 @@ RSpec.describe(Mutations::CreateSellCryptoOrder, type: :mutation) do
         },
       }))
 
-      expect(user.balances.first.reload.amount.to_s).to(eq("0.0034"))
+      expect(user.balance.reload.amount.to_s).to(eq("0.0034"))
     end
   end
 end

spec/graphql/mutations/create_stake_order_spec.rb

@@ -33,12 +33,9 @@ RSpec.describe(Mutations::CreateStakeOrder, type: :mutation) do
 
   context "when the user has enough balance" do
     it "withdraws from his account and creates a buy order" do
-      currency = create(:currency)
       user = create(
         :user,
-        balances: [
+        balance: build(:balance, amount: 1.0034)
-          build(:balance, currency: currency, amount: 1.0034),
-        ]
       )
 
       variables = {
@@ -68,18 +65,15 @@ RSpec.describe(Mutations::CreateStakeOrder, type: :mutation) do
         },
       }))
 
-      expect(user.balances.first.reload.amount.to_s).to(eq("0.2034"))
+      expect(user.balance.reload.amount.to_s).to(eq("0.2034"))
     end
   end
 
   context "when the user does not have enough balance" do
     it "returns withdrawl error" do
-      currency = create(:currency)
       user = create(
         :user,
-        balances: [
+        balance: build(:balance, amount: 0.0034)
-          build(:balance, currency: currency, amount: 0.0034),
-        ]
       )
 
       variables = {
@@ -109,7 +103,7 @@ RSpec.describe(Mutations::CreateStakeOrder, type: :mutation) do
         },
       }))
 
-      expect(user.balances.first.reload.amount.to_s).to(eq("0.0034"))
+      expect(user.balance.reload.amount.to_s).to(eq("0.0034"))
     end
   end
 end

spec/graphql/mutations/create_stake_remove_order_spec.rb

@@ -33,12 +33,9 @@ RSpec.describe(Mutations::CreateStakeRemoveOrder, type: :mutation) do
 
   context "when the user has enough balance" do
     it "withdraws from his account and creates a buy order" do
-      currency = create(:currency)
       user = create(
         :user,
-        balances: [
+        balance: build(:balance, amount: 0)
-          build(:balance, currency: currency, amount: 0),
-        ]
       )
 
       variables = {
@@ -72,15 +69,12 @@ RSpec.describe(Mutations::CreateStakeRemoveOrder, type: :mutation) do
 
   context "when it repeats the mutation with a request in `processing`" do
     it "update amount from the order" do
-      currency = create(:currency)
       user = create(
         :user,
-        balances: [
+        balance: build(:balance, amount: 0)
-          build(:balance, currency: currency, amount: 0),
-        ]
       )
 
-      create(:stake_order, amount: -200.8, user: user, pool_name: "CAKE/BNB", currency: currency)
+      create(:stake_order, amount: -200.8, user: user, pool_name: "CAKE/BNB")
 
       variables = {
         "amount": "200.80",

spec/graphql/types/buy_crypto_order_type_spec.rb

@@ -6,7 +6,6 @@ RSpec.describe(Types::BuyCryptoOrderType) do
 
   describe "arguments" do
     it { is_expected.to(have_a_field(:id).of_type("ID!")) }
-    it { is_expected.to(have_a_field(:currency).of_type("Currency!")) }
     it { is_expected.to(have_a_field(:paid_amount_cents).of_type("Int!")) }
     it { is_expected.to(have_a_field(:received_amount).of_type("String")) }
     it { is_expected.to(have_a_field(:status).of_type("ProcessStatus!")) }

spec/graphql/types/sell_crypto_order_type_spec.rb

@@ -6,7 +6,6 @@ RSpec.describe(Types::SellCryptoOrderType) do
 
   describe "arguments" do
     it { is_expected.to(have_a_field(:id).of_type("ID!")) }
-    it { is_expected.to(have_a_field(:currency).of_type("Currency!")) }
     it { is_expected.to(have_a_field(:paid_amount).of_type("String!")) }
     it { is_expected.to(have_a_field(:received_amount_cents).of_type("Int")) }
     it { is_expected.to(have_a_field(:status).of_type("ProcessStatus!")) }

spec/models/balance_spec.rb

@@ -4,21 +4,18 @@
 #
 # Table name: balances
 #
-#  id          :bigint           not null, primary key
+#  id         :bigint           not null, primary key
-#  amount      :decimal(20, 10)  default(0.0), not null
+#  amount     :decimal(20, 10)  default(0.0), not null
-#  created_at  :datetime         not null
+#  created_at :datetime         not null
-#  updated_at  :datetime         not null
+#  updated_at :datetime         not null
-#  currency_id :bigint           not null
+#  user_id    :bigint           not null
-#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_balances_on_currency_id  (currency_id)
+#  index_balances_on_user_id  (user_id)
-#  index_balances_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 require "rails_helper"
@@ -30,7 +27,6 @@ RSpec.describe(Balance, type: :model) do
 
   describe "associations" do
     it { is_expected.to(belong_to(:user)) }
-    it { is_expected.to(belong_to(:currency)) }
   end
 
   describe ".withdrwal!" do

spec/models/buy_crypto_order_spec.rb

@@ -10,17 +10,14 @@
 #  status            :string           not null
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
-#  currency_id       :bigint           not null
 #  user_id           :bigint           not null
 #
 # Indexes
 #
-#  index_buy_crypto_orders_on_currency_id  (currency_id)
+#  index_buy_crypto_orders_on_user_id  (user_id)
-#  index_buy_crypto_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 require "rails_helper"
@@ -51,6 +48,5 @@ RSpec.describe(BuyCryptoOrder, type: :model) do
 
   describe "associations" do
     it { is_expected.to(belong_to(:user)) }
-    it { is_expected.to(belong_to(:currency)) }
   end
 end

spec/models/currency_spec.rb

@@ -1,18 +0,0 @@
-# frozen_string_literal: true
-
-# == Schema Information
-#
-# Table name: currencies
-#
-#  id         :bigint           not null, primary key
-#  name       :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#
-require "rails_helper"
-
-RSpec.describe(Currency, type: :model) do
-  describe "validations" do
-    it { is_expected.to(validate_presence_of(:name)) }
-  end
-end

spec/models/sell_crypto_order_spec.rb

@@ -10,17 +10,14 @@
 #  status                :string           not null
 #  created_at            :datetime         not null
 #  updated_at            :datetime         not null
-#  currency_id           :bigint           not null
 #  user_id               :bigint           not null
 #
 # Indexes
 #
-#  index_sell_crypto_orders_on_currency_id  (currency_id)
+#  index_sell_crypto_orders_on_user_id  (user_id)
-#  index_sell_crypto_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 require "rails_helper"
@@ -51,6 +48,5 @@ RSpec.describe(SellCryptoOrder, type: :model) do
 
   describe "associations" do
     it { is_expected.to(belong_to(:user)) }
-    it { is_expected.to(belong_to(:currency)) }
   end
 end

spec/models/stake_order_spec.rb

@@ -4,23 +4,20 @@
 #
 # Table name: stake_orders
 #
-#  id          :bigint           not null, primary key
+#  id         :bigint           not null, primary key
-#  amount      :decimal(20, 10)  default(0.0), not null
+#  amount     :decimal(20, 10)  default(0.0), not null
-#  pool_name   :string           not null
+#  pool_name  :string           not null
-#  status      :string           not null
+#  status     :string           not null
-#  created_at  :datetime         not null
+#  created_at :datetime         not null
-#  updated_at  :datetime         not null
+#  updated_at :datetime         not null
-#  currency_id :bigint
+#  user_id    :bigint           not null
-#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_stake_orders_on_currency_id  (currency_id)
+#  index_stake_orders_on_user_id  (user_id)
-#  index_stake_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
-#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 require "rails_helper"
@@ -33,6 +30,5 @@ RSpec.describe(StakeOrder, type: :model) do
 
   describe "associations" do
     it { is_expected.to(belong_to(:user)) }
-    it { is_expected.to(belong_to(:currency)) }
   end
 end

spec/models/user_spec.rb

@@ -33,7 +33,7 @@ RSpec.describe(User, type: :model) do
   describe "associations" do
     it { is_expected.to(have_many(:documents)) }
     it { is_expected.to(have_many(:stake_orders)) }
-    it { is_expected.to(have_many(:balances)) }
+    it { is_expected.to(have_one(:balance)) }
     it { is_expected.to(have_one(:fiat_balance)) }
   end
 end