Adicionando webservice de notícias

app/assets/javascripts/news.coffee

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+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/controllers/news_controller.rb

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+class NewsController < ApplicationController
+  skip_before_action :verify_authenticity_token
+  before_action :set_news, only: [:show, :edit, :update, :destroy]
+
+  # GET /news
+  def index
+    news = News.all
+    hash_news = news.map do |c|
+      {'id' => c.id,
+       'tag' => c.tag,
+       'titulo' => c.title,                 
+       'link' => c.link,
+       'icone' => c.icon
+      }
+    end
+    if !hash_news.empty?
+      render status: 200, json: {
+          noticias: hash_news,
+      }.to_json
+    else
+      render status: 400, json: {
+        mensagem: "Não existe notícias.",
+      }.to_json
+    end
+  end
+
+  # GET /news/1
+  def show
+    respond_to do |format|
+      if @news
+        format.json { render :show, status: :ok, location: @news }
+      else
+        format.json { render json: {"mensagem": "Essa notícia não existe!"}, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # POST /news
+  def create
+    @news = News.new(news_params)
+    if @news.save
+      render status: 200, json: {
+        mensagem: "A notícia foi criada com sucesso!",
+      }.to_json
+    else
+      render status: 400, json: {
+        mensagem: "Não foi possível criar a notícia.",
+      }.to_json
+    end
+  end
+
+  # PATCH/PUT /news/1
+  def update
+    respond_to do |format|
+      if @news
+        if @news.update(news_params)
+          format.json { render :show, status: :ok, location: @news }
+        else
+          format.json { render json: @news.errors, status: :unprocessable_entity }
+        end
+      else
+        format.json { render json: {"mensagem": "Essa notícia não existe!"}, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /news/1
+  def destroy
+    respond_to do |format|
+      if @news
+        if @news.destroy
+          format.json { render json: {"mensagem": "Notícia foi excluída com sucesso!"}, status: :ok }
+        else
+          format.json { render json: @news.errors, status: :unprocessable_entity }
+        end
+      else
+        format.json { render json: {"mensagem": "Essa notícia não existe!"}, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  private
+    def set_news
+      begin
+        @news = News.find(params[:id])
+      rescue
+        @new = nil
+      end
+    end
+
+    def news_params
+      params.require(:news).permit(:tag, :title, :link, :icon)
+    end
+end

app/helpers/news_helper.rb

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+module NewsHelper
+end

app/models/news.rb

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+class News < ApplicationRecord
+end

app/views/news/_form.html.erb

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+<%= form_with(model: news, local: true) do |form| %>
+  <% if news.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(news.errors.count, "error") %> prohibited this news from being saved:</h2>
+
+      <ul>
+      <% news.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div class="field">
+    <%= form.label :tag %>
+    <%= form.text_field :tag %>
+  </div>
+
+  <div class="field">
+    <%= form.label :title %>
+    <%= form.text_field :title %>
+  </div>
+
+  <div class="field">
+    <%= form.label :link %>
+    <%= form.text_field :link %>
+  </div>
+
+  <div class="field">
+    <%= form.label :icon %>
+    <%= form.text_field :icon %>
+  </div>
+
+  <div class="actions">
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/news/_news.json.jbuilder

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+json.extract! news, :id, :tag, :title, :link, :icon, :created_at, :updated_at
+json.url news_url(news, format: :json)

app/views/news/edit.html.erb

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+<h1>Editing News</h1>
+
+<%= render 'form', news: @news %>
+
+<%= link_to 'Show', @news %> |
+<%= link_to 'Back', news_index_path %>

app/views/news/index.html.erb

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+<p id="notice"><%= notice %></p>
+
+<h1>News</h1>
+
+<table>
+  <thead>
+    <tr>
+      <th>Tag</th>
+      <th>Title</th>
+      <th>Link</th>
+      <th>Icon</th>
+      <th colspan="3"></th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @news.each do |news| %>
+      <tr>
+        <td><%= news.tag %></td>
+        <td><%= news.title %></td>
+        <td><%= news.link %></td>
+        <td><%= news.icon %></td>
+        <td><%= link_to 'Show', news %></td>
+        <td><%= link_to 'Edit', edit_news_path(news) %></td>
+        <td><%= link_to 'Destroy', news, method: :delete, data: { confirm: 'Are you sure?' } %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<br>
+
+<%= link_to 'New News', new_news_path %>

app/views/news/index.json.jbuilder

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+json.array! @news, partial: 'news/news', as: :news

app/views/news/new.html.erb

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+<h1>New News</h1>
+
+<%= render 'form', news: @news %>
+
+<%= link_to 'Back', news_index_path %>

app/views/news/show.html.erb

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+<p id="notice"><%= notice %></p>
+
+<p>
+  <strong>Tag:</strong>
+  <%= @news.tag %>
+</p>
+
+<p>
+  <strong>Title:</strong>
+  <%= @news.title %>
+</p>
+
+<p>
+  <strong>Link:</strong>
+  <%= @news.link %>
+</p>
+
+<p>
+  <strong>Icon:</strong>
+  <%= @news.icon %>
+</p>
+
+<%= link_to 'Edit', edit_news_path(@news) %> |
+<%= link_to 'Back', news_index_path %>

app/views/news/show.json.jbuilder

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+json.partial! "news/news", news: @news

config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  resources :news
   if Rails.env.development?
     mount GraphiQL::Rails::Engine, at: "/graphiql", graphql_path: "/graphql"
   end

db/migrate/20190822141248_create_news.rb

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+class CreateNews < ActiveRecord::Migration[5.2]
+  def change
+    create_table :news do |t|
+      t.string :tag
+      t.string :title
+      t.string :link
+      t.string :icon
+
+      t.timestamps
+    end
+  end
+end

test/controllers/news_controller_test.rb

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+require 'test_helper'
+
+class NewsControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @news = news(:one)
+  end
+
+  test "should get index" do
+    get news_index_url
+    assert_response :success
+  end
+
+  test "should get new" do
+    get new_news_url
+    assert_response :success
+  end
+
+  test "should create news" do
+    assert_difference('News.count') do
+      post news_index_url, params: { news: { icon: @news.icon, link: @news.link, tag: @news.tag, title: @news.title } }
+    end
+
+    assert_redirected_to news_url(News.last)
+  end
+
+  test "should show news" do
+    get news_url(@news)
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get edit_news_url(@news)
+    assert_response :success
+  end
+
+  test "should update news" do
+    patch news_url(@news), params: { news: { icon: @news.icon, link: @news.link, tag: @news.tag, title: @news.title } }
+    assert_redirected_to news_url(@news)
+  end
+
+  test "should destroy news" do
+    assert_difference('News.count', -1) do
+      delete news_url(@news)
+    end
+
+    assert_redirected_to news_index_url
+  end
+end

test/fixtures/news.yml

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+# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  tag: MyString
+  title: MyString
+  link: MyString
+  icon: MyString
+
+two:
+  tag: MyString
+  title: MyString
+  link: MyString
+  icon: MyString

test/models/news_test.rb

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

test/system/news_test.rb

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+require "application_system_test_case"
+
+class NewsTest < ApplicationSystemTestCase
+  setup do
+    @news = news(:one)
+  end
+
+  test "visiting the index" do
+    visit news_url
+    assert_selector "h1", text: "News"
+  end
+
+  test "creating a News" do
+    visit news_url
+    click_on "New News"
+
+    fill_in "Icon", with: @news.icon
+    fill_in "Link", with: @news.link
+    fill_in "Tag", with: @news.tag
+    fill_in "Title", with: @news.title
+    click_on "Create News"
+
+    assert_text "News was successfully created"
+    click_on "Back"
+  end
+
+  test "updating a News" do
+    visit news_url
+    click_on "Edit", match: :first
+
+    fill_in "Icon", with: @news.icon
+    fill_in "Link", with: @news.link
+    fill_in "Tag", with: @news.tag
+    fill_in "Title", with: @news.title
+    click_on "Update News"
+
+    assert_text "News was successfully updated"
+    click_on "Back"
+  end
+
+  test "destroying a News" do
+    visit news_url
+    page.accept_confirm do
+      click_on "Destroy", match: :first
+    end
+
+    assert_text "News was successfully destroyed"
+  end
+end