Add Allergen scaffold

app/controllers/allergens_controller.rb

@@ -0,0 +1,69 @@
+class AllergensController < ApplicationController
+  before_action :set_allergen, only: %i[show edit update destroy]
+
+  # GET /allergens or /allergens.json
+  def index
+    @allergens = Allergen.all
+  end
+
+  # GET /allergens/1 or /allergens/1.json
+  def show; end
+
+  # GET /allergens/new
+  def new
+    @allergen = Allergen.new
+  end
+
+  # GET /allergens/1/edit
+  def edit; end
+
+  # POST /allergens or /allergens.json
+  def create
+    @allergen = Allergen.new(allergen_params)
+
+    respond_to do |format|
+      if @allergen.save
+        format.html { redirect_to allergen_url(@allergen), notice: t(:allergen_created) }
+        format.json { render :show, status: :created, location: @allergen }
+      else
+        format.html { render :new, status: :unprocessable_entity }
+        format.json { render json: @allergen.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /allergens/1 or /allergens/1.json
+  def update
+    respond_to do |format|
+      if @allergen.update(allergen_params)
+        format.html { redirect_to allergen_url(@allergen), notice: t(:allergen_updated) }
+        format.json { render :show, status: :ok, location: @allergen }
+      else
+        format.html { render :edit, status: :unprocessable_entity }
+        format.json { render json: @allergen.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /allergens/1 or /allergens/1.json
+  def destroy
+    @allergen.destroy
+
+    respond_to do |format|
+      format.html { redirect_to allergens_url, notice: t(:allergen_destroyed) }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+
+  # Use callbacks to share common setup or constraints between actions.
+  def set_allergen
+    @allergen = Allergen.find(params[:id])
+  end
+
+  # Only allow a list of trusted parameters through.
+  def allergen_params
+    params.require(:allergen).permit(:name)
+  end
+end

app/helpers/allergens_helper.rb

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

app/models/allergen.rb

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

app/views/allergens/_allergen.html.erb

@@ -0,0 +1,7 @@
+<div id="<%= dom_id allergen %>">
+  <p>
+    <strong>Name:</strong>
+    <%= allergen.name %>
+  </p>
+
+</div>

app/views/allergens/_allergen.json.jbuilder

@@ -0,0 +1,2 @@
+json.extract! allergen, :id, :name, :created_at, :updated_at
+json.url allergen_url(allergen, format: :json)

app/views/allergens/_form.html.erb

@@ -0,0 +1,22 @@
+<%= form_with(model: allergen) do |form| %>
+  <% if allergen.errors.any? %>
+    <div style="color: red">
+      <h2><%= pluralize(allergen.errors.count, "error") %> prohibited this allergen from being saved:</h2>
+
+      <ul>
+        <% allergen.errors.each do |error| %>
+          <li><%= error.full_message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div>
+    <%= form.label :name, style: "display: block" %>
+    <%= form.text_field :name %>
+  </div>
+
+  <div>
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/allergens/edit.html.erb

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

app/views/allergens/index.html.erb

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

app/views/allergens/index.json.jbuilder

@@ -0,0 +1 @@
+json.array! @allergens, partial: 'allergens/allergen', as: :allergen

app/views/allergens/new.html.erb

@@ -0,0 +1,9 @@
+<h1>New allergen</h1>
+
+<%= render "form", allergen: @allergen %>
+
+<br>
+
+<div>
+  <%= link_to "Back to allergens", allergens_path %>
+</div>

app/views/allergens/show.html.erb

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

app/views/allergens/show.json.jbuilder

@@ -0,0 +1 @@
+json.partial! 'allergens/allergen', allergen: @allergen

config/locales/en.yml

@@ -55,3 +55,6 @@ en:
   ingredient_created: 'Ingredient was successfully created.'
   ingredient_updated: 'Ingredient was successfully updated.'
   ingredient_destroyed: 'Ingredient was successfully destroyed.'
+  allergen_created: 'Allergen was successfully created.'
+  allergen_updated: 'Allergen was successfully updated.'
+  allergen_destroyed: 'Allergen was successfully destroyed.'

config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  resources :allergens
   resources :category_ingredients
   resources :ingredients
   resources :avoid_foods

db/migrate/20221220190847_create_allergens.rb

@@ -0,0 +1,9 @@
+class CreateAllergens < ActiveRecord::Migration[7.0]
+  def change
+    create_table :allergens do |t|
+      t.string :name
+
+      t.timestamps
+    end
+  end
+end

test/controllers/allergens_controller_test.rb

@@ -0,0 +1,48 @@
+require 'test_helper'
+
+class AllergensControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @allergen = allergens(:one)
+  end
+
+  test 'should get index' do
+    get allergens_url
+    assert_response :success
+  end
+
+  test 'should get new' do
+    get new_allergen_url
+    assert_response :success
+  end
+
+  test 'should create allergen' do
+    assert_difference('Allergen.count') do
+      post allergens_url, params: { allergen: { name: @allergen.name } }
+    end
+
+    assert_redirected_to allergen_url(Allergen.last)
+  end
+
+  test 'should show allergen' do
+    get allergen_url(@allergen)
+    assert_response :success
+  end
+
+  test 'should get edit' do
+    get edit_allergen_url(@allergen)
+    assert_response :success
+  end
+
+  test 'should update allergen' do
+    patch allergen_url(@allergen), params: { allergen: { name: @allergen.name } }
+    assert_redirected_to allergen_url(@allergen)
+  end
+
+  test 'should destroy allergen' do
+    assert_difference('Allergen.count', -1) do
+      delete allergen_url(@allergen)
+    end
+
+    assert_redirected_to allergens_url
+  end
+end

test/fixtures/allergens.yml

@@ -0,0 +1,7 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  name: MyString
+
+two:
+  name: MyString

test/models/allergen_test.rb

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

test/system/allergens_test.rb

@@ -0,0 +1,41 @@
+require 'application_system_test_case'
+
+class AllergensTest < ApplicationSystemTestCase
+  setup do
+    @allergen = allergens(:one)
+  end
+
+  test 'visiting the index' do
+    visit allergens_url
+    assert_selector 'h1', text: 'Allergens'
+  end
+
+  test 'should create allergen' do
+    visit allergens_url
+    click_on 'New allergen'
+
+    fill_in 'Name', with: @allergen.name
+    click_on 'Create Allergen'
+
+    assert_text 'Allergen was successfully created'
+    click_on 'Back'
+  end
+
+  test 'should update Allergen' do
+    visit allergen_url(@allergen)
+    click_on 'Edit this allergen', match: :first
+
+    fill_in 'Name', with: @allergen.name
+    click_on 'Update Allergen'
+
+    assert_text 'Allergen was successfully updated'
+    click_on 'Back'
+  end
+
+  test 'should destroy Allergen' do
+    visit allergen_url(@allergen)
+    click_on 'Destroy this allergen', match: :first
+
+    assert_text 'Allergen was successfully destroyed'
+  end
+end