Scaffold error_templates UI

app/assets/stylesheets/error_templates.css.scss

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+// Place all the styles related to the error_templates controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/scaffolds.css.scss

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+body {
+  background-color: #fff;
+  color: #333;
+  font-family: verdana, arial, helvetica, sans-serif;
+  font-size: 13px;
+  line-height: 18px;
+}
+
+p, ol, ul, td {
+  font-family: verdana, arial, helvetica, sans-serif;
+  font-size: 13px;
+  line-height: 18px;
+}
+
+pre {
+  background-color: #eee;
+  padding: 10px;
+  font-size: 11px;
+}
+
+a {
+  color: #000;
+  &:visited {
+    color: #666;
+  }
+  &:hover {
+    color: #fff;
+    background-color: #000;
+  }
+}
+
+div {
+  &.field, &.actions {
+    margin-bottom: 10px;
+  }
+}
+
+#notice {
+  color: green;
+}
+
+.field_with_errors {
+  padding: 2px;
+  background-color: red;
+  display: table;
+}
+
+#error_explanation {
+  width: 450px;
+  border: 2px solid red;
+  padding: 7px;
+  padding-bottom: 0;
+  margin-bottom: 20px;
+  background-color: #f0f0f0;
+  h2 {
+    text-align: left;
+    font-weight: bold;
+    padding: 5px 5px 5px 15px;
+    font-size: 12px;
+    margin: -7px;
+    margin-bottom: 0px;
+    background-color: #c00;
+    color: #fff;
+  }
+  ul li {
+    font-size: 12px;
+    list-style: square;
+  }
+}

app/controllers/error_templates_controller.rb

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+class ErrorTemplatesController < ApplicationController
+  before_action :set_error_template, only: [:show, :edit, :update, :destroy]
+
+  def authorize!
+    authorize(@error_templates || @error_template)
+  end
+  private :authorize!
+
+  # GET /error_templates
+  # GET /error_templates.json
+  def index
+    @error_templates = ErrorTemplate.all
+    authorize!
+  end
+
+  # GET /error_templates/1
+  # GET /error_templates/1.json
+  def show
+    authorize!
+  end
+
+  # GET /error_templates/new
+  def new
+    @error_template = ErrorTemplate.new
+    authorize!
+  end
+
+  # GET /error_templates/1/edit
+  def edit
+    authorize!
+  end
+
+  # POST /error_templates
+  # POST /error_templates.json
+  def create
+    authorize!
+    @error_template = ErrorTemplate.new(error_template_params)
+
+    respond_to do |format|
+      if @error_template.save
+        format.html { redirect_to @error_template, notice: 'Error template was successfully created.' }
+        format.json { render :show, status: :created, location: @error_template }
+      else
+        format.html { render :new }
+        format.json { render json: @error_template.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /error_templates/1
+  # PATCH/PUT /error_templates/1.json
+  def update
+    authorize!
+    respond_to do |format|
+      if @error_template.update(error_template_params)
+        format.html { redirect_to @error_template, notice: 'Error template was successfully updated.' }
+        format.json { render :show, status: :ok, location: @error_template }
+      else
+        format.html { render :edit }
+        format.json { render json: @error_template.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /error_templates/1
+  # DELETE /error_templates/1.json
+  def destroy
+    authorize!
+    @error_template.destroy
+    respond_to do |format|
+      format.html { redirect_to error_templates_url, notice: 'Error template was successfully destroyed.' }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_error_template
+      @error_template = ErrorTemplate.find(params[:id])
+    end
+
+    # Never trust parameters from the scary internet, only allow the white list through.
+    def error_template_params
+      params.fetch(:error_template, {})
+    end
+end

app/helpers/error_templates_helper.rb

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+module ErrorTemplatesHelper
+end

app/policies/error_template_policy.rb

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+class ErrorTemplatePolicy < AdminOnlyPolicy
+
+end

app/views/error_templates/_form.html.erb

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+<%= form_for(@error_template) do |f| %>
+  <% if @error_template.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(@error_template.errors.count, "error") %> prohibited this error_template from being saved:</h2>
+
+      <ul>
+      <% @error_template.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div class="actions">
+    <%= f.submit %>
+  </div>
+<% end %>

app/views/error_templates/edit.html.erb

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+<h1>Editing Error Template</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Show', @error_template %> |
+<%= link_to 'Back', error_templates_path %>

app/views/error_templates/index.html.erb

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+<p id="notice"><%= notice %></p>
+
+<h1>Listing Error Templates</h1>
+
+<table>
+  <thead>
+    <tr>
+      <th colspan="3"></th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @error_templates.each do |error_template| %>
+      <tr>
+        <td><%= link_to 'Show', error_template %></td>
+        <td><%= link_to 'Edit', edit_error_template_path(error_template) %></td>
+        <td><%= link_to 'Destroy', error_template, method: :delete, data: { confirm: 'Are you sure?' } %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<br>
+
+<%= link_to 'New Error template', new_error_template_path %>

app/views/error_templates/index.json.jbuilder

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+json.array!(@error_templates) do |error_template|
+  json.extract! error_template, :id
+  json.url error_template_url(error_template, format: :json)
+end

app/views/error_templates/new.html.erb

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+<h1>New Error Template</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Back', error_templates_path %>

app/views/error_templates/show.html.erb

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+<p id="notice"><%= notice %></p>
+
+<%= link_to 'Edit', edit_error_template_path(@error_template) %> |
+<%= link_to 'Back', error_templates_path %>

app/views/error_templates/show.json.jbuilder

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+json.extract! @error_template, :id, :created_at, :updated_at

config/routes.rb

@@ -1,6 +1,7 @@
 FILENAME_REGEXP = /[\w\.]+/ unless Kernel.const_defined?(:FILENAME_REGEXP)
 
 Rails.application.routes.draw do
+  resources :error_templates
   resources :file_templates do
     collection do
       get 'by_file_type/:file_type_id', as: :by_file_type, action: :by_file_type

test/controllers/error_templates_controller_test.rb

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+require 'test_helper'
+
+class ErrorTemplatesControllerTest < ActionController::TestCase
+  setup do
+    @error_template = error_templates(:one)
+  end
+
+  test "should get index" do
+    get :index
+    assert_response :success
+    assert_not_nil assigns(:error_templates)
+  end
+
+  test "should get new" do
+    get :new
+    assert_response :success
+  end
+
+  test "should create error_template" do
+    assert_difference('ErrorTemplate.count') do
+      post :create, error_template: {  }
+    end
+
+    assert_redirected_to error_template_path(assigns(:error_template))
+  end
+
+  test "should show error_template" do
+    get :show, id: @error_template
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get :edit, id: @error_template
+    assert_response :success
+  end
+
+  test "should update error_template" do
+    patch :update, id: @error_template, error_template: {  }
+    assert_redirected_to error_template_path(assigns(:error_template))
+  end
+
+  test "should destroy error_template" do
+    assert_difference('ErrorTemplate.count', -1) do
+      delete :destroy, id: @error_template
+    end
+
+    assert_redirected_to error_templates_path
+  end
+end