Scaffold Message model

app/controllers/messages_controller.rb

@@ -0,0 +1,51 @@
+class MessagesController < ApplicationController
+  before_action :set_message, only: %i[ show update destroy ]
+
+  # GET /messages
+  def index
+    @messages = Message.all
+
+    render json: @messages
+  end
+
+  # GET /messages/1
+  def show
+    render json: @message
+  end
+
+  # POST /messages
+  def create
+    @message = Message.new(message_params)
+
+    if @message.save
+      render json: @message, status: :created, location: @message
+    else
+      render json: @message.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /messages/1
+  def update
+    if @message.update(message_params)
+      render json: @message
+    else
+      render json: @message.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /messages/1
+  def destroy
+    @message.destroy!
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_message
+      @message = Message.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def message_params
+      params.require(:message).permit(:name, :email, :subject, :content)
+    end
+end

app/models/message.rb

@@ -0,0 +1,6 @@
+class Message < ApplicationRecord
+  validates :name, presence: true
+  validates :email, presence: true, format: { with: URI::MailTo::EMAIL_REGEXP }
+  validates :subject, presence: true
+  validates :content, presence: true
+end

config/routes.rb

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

db/migrate/20241030001837_create_messages.rb

@@ -0,0 +1,12 @@
+class CreateMessages < ActiveRecord::Migration[7.2]
+  def change
+    create_table :messages do |t|
+      t.string :name
+      t.string :email
+      t.string :subject
+      t.text :content
+
+      t.timestamps
+    end
+  end
+end

test/controllers/messages_controller_test.rb

@@ -0,0 +1,38 @@
+require "test_helper"
+
+class MessagesControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @message = messages(:one)
+  end
+
+  test "should get index" do
+    get messages_url, as: :json
+    assert_response :success
+  end
+
+  test "should create message" do
+    assert_difference("Message.count") do
+      post messages_url, params: { message: { content: @message.content, email: @message.email, name: @message.name, subject: @message.subject } }, as: :json
+    end
+
+    assert_response :created
+  end
+
+  test "should show message" do
+    get message_url(@message), as: :json
+    assert_response :success
+  end
+
+  test "should update message" do
+    patch message_url(@message), params: { message: { content: @message.content, email: @message.email, name: @message.name, subject: @message.subject } }, as: :json
+    assert_response :success
+  end
+
+  test "should destroy message" do
+    assert_difference("Message.count", -1) do
+      delete message_url(@message), as: :json
+    end
+
+    assert_response :no_content
+  end
+end

test/fixtures/messages.yml

@@ -0,0 +1,13 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  name: MyString
+  email: MyString
+  subject: MyString
+  content: MyText
+
+two:
+  name: MyString
+  email: MyString
+  subject: MyString
+  content: MyText

test/models/message_test.rb

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