rails g scaffold sentence body:text account:references

app/controllers/sentences_controller.rb

+class SentencesController < ApplicationController
+  before_action :set_sentence, only: %i[ show edit update destroy ]
+
+  # GET /sentences or /sentences.json
+  def index
+    @sentences = Sentence.all
+  end
+
+  # GET /sentences/1 or /sentences/1.json
+  def show
+  end
+
+  # GET /sentences/new
+  def new
+    @sentence = Sentence.new
+  end
+
+  # GET /sentences/1/edit
+  def edit
+  end
+
+  # POST /sentences or /sentences.json
+  def create
+    @sentence = Sentence.new(sentence_params)
+
+    respond_to do |format|
+      if @sentence.save
+        format.html { redirect_to sentence_url(@sentence), notice: "Sentence was successfully created." }
+        format.json { render :show, status: :created, location: @sentence }
+      else
+        format.html { render :new, status: :unprocessable_entity }
+        format.json { render json: @sentence.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /sentences/1 or /sentences/1.json
+  def update
+    respond_to do |format|
+      if @sentence.update(sentence_params)
+        format.html { redirect_to sentence_url(@sentence), notice: "Sentence was successfully updated." }
+        format.json { render :show, status: :ok, location: @sentence }
+      else
+        format.html { render :edit, status: :unprocessable_entity }
+        format.json { render json: @sentence.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /sentences/1 or /sentences/1.json
+  def destroy
+    @sentence.destroy
+
+    respond_to do |format|
+      format.html { redirect_to sentences_url, notice: "Sentence was successfully destroyed." }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_sentence
+      @sentence = Sentence.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def sentence_params
+      params.require(:sentence).permit(:body, :account_id)
+    end
+end

app/helpers/sentences_helper.rb

+module SentencesHelper
+end

app/models/sentence.rb

+class Sentence < ApplicationRecord
+  belongs_to :account
+end

app/views/sentences/_form.html.erb

+<%= form_with(model: sentence) do |form| %>
+  <% if sentence.errors.any? %>
+    <div style="color: red">
+      <h2><%= pluralize(sentence.errors.count, "error") %> prohibited this sentence from being saved:</h2>
+
+      <ul>
+        <% sentence.errors.each do |error| %>
+          <li><%= error.full_message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div>
+    <%= form.label :body, style: "display: block" %>
+    <%= form.text_area :body %>
+  </div>
+
+  <div>
+    <%= form.label :account_id, style: "display: block" %>
+    <%= form.text_field :account_id %>
+  </div>
+
+  <div>
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/sentences/_sentence.html.erb

+<div id="<%= dom_id sentence %>">
+  <p>
+    <strong>Body:</strong>
+    <%= sentence.body %>
+  </p>
+
+  <p>
+    <strong>Account:</strong>
+    <%= sentence.account_id %>
+  </p>
+
+</div>

app/views/sentences/_sentence.json.jbuilder

+json.extract! sentence, :id, :body, :account_id, :created_at, :updated_at
+json.url sentence_url(sentence, format: :json)

app/views/sentences/edit.html.erb

+<h1>Editing sentence</h1>
+
+<%= render "form", sentence: @sentence %>
+
+<br>
+
+<div>
+  <%= link_to "Show this sentence", @sentence %> |
+  <%= link_to "Back to sentences", sentences_path %>
+</div>

app/views/sentences/index.html.erb

+<p style="color: green"><%= notice %></p>
+
+<h1>Sentences</h1>
+
+<div id="sentences">
+  <% @sentences.each do |sentence| %>
+    <%= render sentence %>
+    <p>
+      <%= link_to "Show this sentence", sentence %>
+    </p>
+  <% end %>
+</div>
+
+<%= link_to "New sentence", new_sentence_path %>

app/views/sentences/index.json.jbuilder

+json.array! @sentences, partial: "sentences/sentence", as: :sentence

app/views/sentences/new.html.erb

+<h1>New sentence</h1>
+
+<%= render "form", sentence: @sentence %>
+
+<br>
+
+<div>
+  <%= link_to "Back to sentences", sentences_path %>
+</div>

app/views/sentences/show.html.erb

+<p style="color: green"><%= notice %></p>
+
+<%= render @sentence %>
+
+<div>
+  <%= link_to "Edit this sentence", edit_sentence_path(@sentence) %> |
+  <%= link_to "Back to sentences", sentences_path %>
+
+  <%= button_to "Destroy this sentence", @sentence, method: :delete %>
+</div>

app/views/sentences/show.json.jbuilder

+json.partial! "sentences/sentence", sentence: @sentence

config/routes.rb

 Rails.application.routes.draw do
+  resources :sentences
   resources :accounts
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 

db/migrate/20220425113435_create_sentences.rb

+class CreateSentences < ActiveRecord::Migration[7.0]
+  def change
+    create_table :sentences do |t|
+      t.text :body
+      t.references :account, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  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[7.0].define(version: 2022_04_25_032546) do
+ActiveRecord::Schema[7.0].define(version: 2022_04_25_113435) do
   create_table "accounts", force: :cascade do |t|
     t.string "email"
     t.string "password_digest"
@@ -19,4 +19,13 @@ ActiveRecord::Schema[7.0].define(version: 2022_04_25_032546) do
     t.index ["email"], name: "index_accounts_on_email", unique: true
   end
 
+  create_table "sentences", force: :cascade do |t|
+    t.text "body"
+    t.integer "account_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["account_id"], name: "index_sentences_on_account_id"
+  end
+
+  add_foreign_key "sentences", "accounts"
 end

test/controllers/sentences_controller_test.rb

+require "test_helper"
+
+class SentencesControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @sentence = sentences(:one)
+  end
+
+  test "should get index" do
+    get sentences_url
+    assert_response :success
+  end
+
+  test "should get new" do
+    get new_sentence_url
+    assert_response :success
+  end
+
+  test "should create sentence" do
+    assert_difference("Sentence.count") do
+      post sentences_url, params: { sentence: { account_id: @sentence.account_id, body: @sentence.body } }
+    end
+
+    assert_redirected_to sentence_url(Sentence.last)
+  end
+
+  test "should show sentence" do
+    get sentence_url(@sentence)
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get edit_sentence_url(@sentence)
+    assert_response :success
+  end
+
+  test "should update sentence" do
+    patch sentence_url(@sentence), params: { sentence: { account_id: @sentence.account_id, body: @sentence.body } }
+    assert_redirected_to sentence_url(@sentence)
+  end
+
+  test "should destroy sentence" do
+    assert_difference("Sentence.count", -1) do
+      delete sentence_url(@sentence)
+    end
+
+    assert_redirected_to sentences_url
+  end
+end

test/fixtures/sentences.yml

+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  body: MyText
+  account: one
+
+two:
+  body: MyText
+  account: two

test/models/sentence_test.rb

+require "test_helper"
+
+class SentenceTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/system/sentences_test.rb

+require "application_system_test_case"
+
+class SentencesTest < ApplicationSystemTestCase
+  setup do
+    @sentence = sentences(:one)
+  end
+
+  test "visiting the index" do
+    visit sentences_url
+    assert_selector "h1", text: "Sentences"
+  end
+
+  test "should create sentence" do
+    visit sentences_url
+    click_on "New sentence"
+
+    fill_in "Account", with: @sentence.account_id
+    fill_in "Body", with: @sentence.body
+    click_on "Create Sentence"
+
+    assert_text "Sentence was successfully created"
+    click_on "Back"
+  end
+
+  test "should update Sentence" do
+    visit sentence_url(@sentence)
+    click_on "Edit this sentence", match: :first
+
+    fill_in "Account", with: @sentence.account_id
+    fill_in "Body", with: @sentence.body
+    click_on "Update Sentence"
+
+    assert_text "Sentence was successfully updated"
+    click_on "Back"
+  end
+
+  test "should destroy Sentence" do
+    visit sentence_url(@sentence)
+    click_on "Destroy this sentence", match: :first
+
+    assert_text "Sentence was successfully destroyed"
+  end
+end