add createStakeOrder mutation

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_16_032056) do
+ActiveRecord::Schema.define(version: 2021_08_16_174637) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -111,6 +111,8 @@ ActiveRecord::Schema.define(version: 2021_08_16_032056) 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
 
@@ -145,6 +147,7 @@ ActiveRecord::Schema.define(version: 2021_08_16_032056) do
   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