Generate User scaffold

bundle exec rails generate scaffold user email:string{64}:uniq
  status:integer

app/controllers/users_controller.rb

@@ -0,0 +1,58 @@
+class UsersController < ApplicationController
+  before_action :set_user, only: %i[ show edit update destroy ]
+
+  # GET /users
+  def index
+    @users = User.all
+  end
+
+  # GET /users/1
+  def show
+  end
+
+  # GET /users/new
+  def new
+    @user = User.new
+  end
+
+  # GET /users/1/edit
+  def edit
+  end
+
+  # POST /users
+  def create
+    @user = User.new(user_params)
+
+    if @user.save
+      redirect_to @user, notice: "User was successfully created."
+    else
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /users/1
+  def update
+    if @user.update(user_params)
+      redirect_to @user, notice: "User was successfully updated."
+    else
+      render :edit, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /users/1
+  def destroy
+    @user.destroy
+    redirect_to users_url, notice: "User was successfully destroyed."
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_user
+      @user = User.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def user_params
+      params.require(:user).permit(:email, :status)
+    end
+end

app/helpers/users_helper.rb

@@ -0,0 +1,2 @@
+module UsersHelper
+end

app/models/user.rb

@@ -0,0 +1,2 @@
+class User < ApplicationRecord
+end

app/views/users/_form.html.erb

@@ -0,0 +1,27 @@
+<%= form_with(model: user) do |form| %>
+  <% if user.errors.any? %>
+    <div style="color: red">
+      <h2><%= pluralize(user.errors.count, "error") %> prohibited this user from being saved:</h2>
+
+      <ul>
+        <% user.errors.each do |error| %>
+          <li><%= error.full_message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div>
+    <%= form.label :email, style: "display: block" %>
+    <%= form.text_field :email %>
+  </div>
+
+  <div>
+    <%= form.label :status, style: "display: block" %>
+    <%= form.number_field :status %>
+  </div>
+
+  <div>
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/users/_user.html.erb

@@ -0,0 +1,12 @@
+<div id="<%= dom_id user %>">
+  <p>
+    <strong>Email:</strong>
+    <%= user.email %>
+  </p>
+
+  <p>
+    <strong>Status:</strong>
+    <%= user.status %>
+  </p>
+
+</div>

app/views/users/edit.html.erb

@@ -0,0 +1,10 @@
+<h1>Editing user</h1>
+
+<%= render "form", user: @user %>
+
+<br>
+
+<div>
+  <%= link_to "Show this user", @user %> |
+  <%= link_to "Back to users", users_path %>
+</div>

app/views/users/index.html.erb

@@ -0,0 +1,14 @@
+<p style="color: green"><%= notice %></p>
+
+<h1>Users</h1>
+
+<div id="users">
+  <% @users.each do |user| %>
+    <%= render user %>
+    <p>
+      <%= link_to "Show this user", user %>
+    </p>
+  <% end %>
+</div>
+
+<%= link_to "New user", new_user_path %>

app/views/users/new.html.erb

@@ -0,0 +1,9 @@
+<h1>New user</h1>
+
+<%= render "form", user: @user %>
+
+<br>
+
+<div>
+  <%= link_to "Back to users", users_path %>
+</div>

app/views/users/show.html.erb

@@ -0,0 +1,10 @@
+<p style="color: green"><%= notice %></p>
+
+<%= render @user %>
+
+<div>
+  <%= link_to "Edit this user", edit_user_path(@user) %> |
+  <%= link_to "Back to users", users_path %>
+
+  <%= button_to "Destroy this user", @user, method: :delete %>
+</div>

config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  resources :users
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 
   root "users#index"

db/migrate/20230309185340_create_users.rb

@@ -0,0 +1,11 @@
+class CreateUsers < ActiveRecord::Migration[7.0]
+  def change
+    create_table :users do |t|
+      t.string :email, null: false, limit: 64
+      t.integer :status, null: false, default: 0
+
+      t.timestamps null: false
+    end
+    add_index :users, :email, unique: true
+  end
+end

test/controllers/users_controller_test.rb

@@ -0,0 +1,48 @@
+require "test_helper"
+
+class UsersControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @user = users(:one)
+  end
+
+  test "should get index" do
+    get users_url
+    assert_response :success
+  end
+
+  test "should get new" do
+    get new_user_url
+    assert_response :success
+  end
+
+  test "should create user" do
+    assert_difference("User.count") do
+      post users_url, params: { user: { email: @user.email, status: @user.status } }
+    end
+
+    assert_redirected_to user_url(User.last)
+  end
+
+  test "should show user" do
+    get user_url(@user)
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get edit_user_url(@user)
+    assert_response :success
+  end
+
+  test "should update user" do
+    patch user_url(@user), params: { user: { email: @user.email, status: @user.status } }
+    assert_redirected_to user_url(@user)
+  end
+
+  test "should destroy user" do
+    assert_difference("User.count", -1) do
+      delete user_url(@user)
+    end
+
+    assert_redirected_to users_url
+  end
+end

test/fixtures/users.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  email: MyString
+  status: 1
+
+two:
+  email: MyString
+  status: 1

test/models/user_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class UserTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/system/users_test.rb

@@ -0,0 +1,43 @@
+require "application_system_test_case"
+
+class UsersTest < ApplicationSystemTestCase
+  setup do
+    @user = users(:one)
+  end
+
+  test "visiting the index" do
+    visit users_url
+    assert_selector "h1", text: "Users"
+  end
+
+  test "should create user" do
+    visit users_url
+    click_on "New user"
+
+    fill_in "Email", with: @user.email
+    fill_in "Status", with: @user.status
+    click_on "Create User"
+
+    assert_text "User was successfully created"
+    click_on "Back"
+  end
+
+  test "should update User" do
+    visit user_url(@user)
+    click_on "Edit this user", match: :first
+
+    fill_in "Email", with: @user.email
+    fill_in "Status", with: @user.status
+    click_on "Update User"
+
+    assert_text "User was successfully updated"
+    click_on "Back"
+  end
+
+  test "should destroy User" do
+    visit user_url(@user)
+    click_on "Destroy this user", match: :first
+
+    assert_text "User was successfully destroyed"
+  end
+end