add user model

Gemfile

@@ -5,7 +5,6 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby "2.7.4"
 
-gem "jbuilder", "~> 2.7"
 gem "pg", "~> 1.1"
 gem "puma", "~> 5.0"
 gem "rails", "~> 6.1.4"
@@ -15,11 +14,12 @@ gem "webpacker", "~> 5.0"
 gem "bootsnap", ">= 1.4.4", require: false
 
 gem "devise"
-gem "devise-bootstrap-views"
 gem "devise-i18n"
+gem "devise-bootstrap-views"
+
+gem "tailwindcss-rails"
 gem "administrate"
 gem "graphql"
-gem "tailwindcss-rails"
 gem "httparty"
 gem "pundit"
 
@@ -42,3 +42,7 @@ group :development do
   gem "listen", "~> 3.3"
   gem "spring"
 end
+
+group :test do
+  gem "shoulda-matchers", "~> 5.0"
+end

Gemfile.lock

@@ -121,8 +121,6 @@ GEM
       multi_xml (>= 0.5.2)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    jbuilder (2.11.2)
-      activesupport (>= 5.0.0)
     jquery-rails (4.4.0)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
@@ -271,6 +269,8 @@ GEM
       tilt
     selectize-rails (0.12.6)
     semantic_range (3.0.0)
+    shoulda-matchers (5.0.0)
+      activesupport (>= 5.2.0)
     spring (2.1.1)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
@@ -323,7 +323,6 @@ DEPENDENCIES
   graphql
   graphql_playground-rails
   httparty
-  jbuilder (~> 2.7)
   listen (~> 3.3)
   pg (~> 1.1)
   pry-byebug
@@ -335,6 +334,7 @@ DEPENDENCIES
   rubocop-rspec
   rubocop-shopify
   sass-rails (>= 6)
+  shoulda-matchers (~> 5.0)
   spring
   tailwindcss-rails
   turbolinks (~> 5)

app/controllers/admin/users_controller.rb

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

app/dashboards/user_dashboard.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+require "administrate/base_dashboard"
+
+class UserDashboard < 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,
+    full_name: Field::String,
+    first_name: Field::String,
+    last_name: Field::String,
+    email: 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 = [:full_name, :email].freeze
+
+  # SHOW_PAGE_ATTRIBUTES
+  # an array of attributes that will be displayed on the model's show page.
+  SHOW_PAGE_ATTRIBUTES = [:id, :first_name, :last_name, :email, :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 = [:first_name, :last_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 users are displayed
+  # across all pages of the admin dashboard.
+  #
+  # def display_resource(user)
+  #   "User ##{user.id}"
+  # end
+end

app/models/user.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: users
+#
+#  id         :bigint           not null, primary key
+#  email      :string           not null
+#  first_name :string           not null
+#  last_name  :string           not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+# Indexes
+#
+#  index_users_on_email  (email) UNIQUE
+#
+class User < ApplicationRecord
+  validates :first_name, :last_name, :email, presence: true
+
+  def full_name
+    "#{first_name} #{last_name}"
+  end
+end

config/routes.rb

@@ -3,9 +3,10 @@ Rails.application.routes.draw do
   devise_for :admin_users
 
   namespace :admin do
+    resources :users
     resources :admin_users
 
-    root to: "admin_users#index"
+    root to: "users#index"
   end
 
   root to: "home#index"

db/migrate/20210804230323_create_users.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+class CreateUsers < ActiveRecord::Migration[6.1]
+  def change
+    create_table(:users) do |t|
+      t.string(:first_name, null: false)
+      t.string(:last_name, null: false)
+      t.string(:email, null: false)
+
+      t.timestamps
+    end
+
+    add_index(:users, :email, unique: true)
+  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_03_222524) do
+ActiveRecord::Schema.define(version: 2021_08_04_230323) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -27,4 +27,13 @@ ActiveRecord::Schema.define(version: 2021_08_03_222524) do
     t.index ["reset_password_token"], name: "index_admin_users_on_reset_password_token", unique: true
   end
 
+  create_table "users", force: :cascade do |t|
+    t.string "first_name", null: false
+    t.string "last_name", null: false
+    t.string "email", null: false
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["email"], name: "index_users_on_email", unique: true
+  end
+
 end

spec/models/user_spec.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: users
+#
+#  id         :bigint           not null, primary key
+#  email      :string           not null
+#  first_name :string           not null
+#  last_name  :string           not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+# Indexes
+#
+#  index_users_on_email  (email) UNIQUE
+#
+require "rails_helper"
+
+RSpec.describe(User, type: :model) do
+  describe "validations" do
+    it { is_expected.to(validate_presence_of(:first_name)) }
+    it { is_expected.to(validate_presence_of(:last_name)) }
+    it { is_expected.to(validate_presence_of(:email)) }
+  end
+end

spec/rails_helper.rb

@@ -67,3 +67,10 @@ RSpec.configure do |config|
   # arbitrary gems may also be filtered via:
   # config.filter_gems_from_backtrace("gem name")
 end
+
+Shoulda::Matchers.configure do |config|
+  config.integrate do |with|
+    with.test_framework(:rspec)
+    with.library(:rails)
+  end
+end