Alpha Camp #11 Final Exam by Howard

app/controllers/api_controller.rb

@@ -0,0 +1,17 @@
+class ApiController < ActionController::Base
+
+  # skip_before_action :verify_authenticity_token
+  before_action :enabled_cors
+
+
+  private
+
+    def enabled_cors
+      headers['Access-Control-Allow-Origin'] = '*'
+      headers['Access-Control-Allow-Methods'] = 'GET, POST, PUT, DELETE'
+      headers['Access-Control-Allow-Headers'] = 'Origin, X-Atmosphere-tracking-id, X-Atmosphere-Framework, X-Cache-Date, Content-Type, X-Atmosphere-Transport, X-Remote, api_key, auth_token, *'
+      headers['Access-Control-Request-Method'] = 'GET, POST, PUT, DELETE'
+      headers['Access-Control-Request-Headers'] = 'Origin, X-Atmosphere-tracking-id, X-Atmosphere-Framework, X-Cache-Date, Content-Type, X-Atmosphere-Transport,  X-Remote, api_key, *'
+    end
+
+end

app/controllers/api_v1/messages_controller.rb

@@ -0,0 +1,7 @@
+class ApiV1::MessagesController < ApiController
+
+  def index
+    @messages = Message.all
+  end
+
+end

app/controllers/comments_controller.rb

@@ -16,7 +16,11 @@ def destroy
     @comment = current_user.comments.find( params[:id] )
     @comment.destroy
 
-    redirect_to :back
+    respond_to do |format|
+      format.html { redirect_to :back }
+      format.js
+    end
+
   end
 
   protected

app/controllers/likes_controller.rb

@@ -0,0 +1,25 @@
+class LikesController < ApplicationController
+  before_action :authenticate_user!
+  before_action :set_message
+
+  def create
+    @subscribe = current_user.likes.build(:message_id => params[:message_id])
+    @subscribe.save
+
+    redirect_to message_path(@message) 
+  end
+
+  def destroy
+    @subscribe = current_user.likes.find_by_message_id(params[:message_id])
+    @subscribe.destroy
+
+    redirect_to message_path(@message) 
+  end
+
+  private
+
+  def set_message
+    @message = Message.find(params[:message_id])
+  end
+
+end

app/controllers/messages_controller.rb

@@ -4,19 +4,19 @@ class MessagesController < ApplicationController
 
   def index
     # TODO: fix N+1 queries for user and comments
-    @messages = Message.order("id DESC").page( params[:page] )
+    @messages = Message.includes(:comments, :user).order("id DESC").page( params[:page] )
 
     if params[:status] == "pending"
       # TODO: @messages = @messages.pending
-      @messages = @messages.where( :status => "pending" )
+      @messages = @messages.pending
     elsif params[:status] == "completed"
       # TODO: @messages = @messages.completed
-      @messages = @messages.where( :status => "completed" )
+      @messages = @messages.completed
     end
 
     if params[:days]
       # TODO: @messages = @messages.within_days(params[:days].to_i)
-      @messages = @messages.where( ["created_at >= ?", Time.now - params[:days].to_i.days ] )
+      @messages = @messages.within_week
     end
   end
 

app/controllers/subscribes_controller.rb

@@ -0,0 +1,25 @@
+class SubscribesController < ApplicationController
+  before_action :authenticate_user!
+  before_action :set_message
+
+  def create
+    @subscribe = current_user.subscribes.build(:message_id => params[:message_id])
+    @subscribe.save
+
+    redirect_to message_path(@message) 
+  end
+
+  def destroy
+    @subscribe = current_user.subscribes.find_by_message_id(params[:message_id])
+    @subscribe.destroy
+
+    redirect_to message_path(@message) 
+  end
+
+  private
+
+  def set_message
+    @message = Message.find(params[:message_id])
+  end
+
+end

app/models/like.rb

@@ -0,0 +1,6 @@
+class Like < ActiveRecord::Base
+
+  belongs_to :user
+  belongs_to :message
+
+end

app/models/message.rb

@@ -3,9 +3,17 @@ class Message < ActiveRecord::Base
   belongs_to :user
 
   has_many :comments, :dependent => :destroy
+  has_many :subscribes, :dependent => :destroy
+  has_many :subscribe_users, :through => :subscribes, :source => :user
+  has_many :likes, :dependent => :destroy
+  has_many :like_users, :through => :likes, :source => :user
 
   def last_comment_summary
     self.comments.last.try(:content).try(:truncate, 20)
   end
 
+  scope :pending, -> { where( :status => "pending") }
+  scope :completed, -> { where( :status => "completed") }
+  scope :within_week, -> { where( ["created_at >= ?", Time.now - 7.days] ) }
+
 end

app/models/subscribe.rb

@@ -0,0 +1,6 @@
+class Subscribe < ActiveRecord::Base
+
+  belongs_to :user
+  belongs_to :message
+
+end

app/models/user.rb

@@ -4,15 +4,20 @@ class User < ActiveRecord::Base
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
 
-  has_many :messages
-  has_many :comments
+  has_many :messages, :dependent => :destroy
+  has_many :comments, :dependent => :destroy
+  has_many :subscribes, :dependent => :destroy
+  has_many :subscribe_message, :through => :subscribes, :source => :message
+  has_many :likes, :dependent => :destroy
+  has_many :like_message, :through => :likes, :source => :message
 
   def display_name
     self.email.split("@").first
   end
 
   def posts_count
     # TODO: 請完成我
+    self.messages.count + self.comments.count
   end
 
   def words_count
@@ -29,4 +34,8 @@ def words_count
     return count
   end
 
+  def short_name
+    self.email.split("@").first
+  end
+
 end

app/views/api_v1/messages/_messages.json.jbuilder

@@ -0,0 +1 @@
+json.( m, :id, :status, :category_name, :title, :content, :created_at)

app/views/api_v1/messages/index.json.jbuilder

@@ -0,0 +1 @@
+json.messages @messages , partial: "messages" , as: :m 

app/views/comments/destroy.js.erb

@@ -0,0 +1 @@
+$("#comment-<%= @comment.id %>").remove();

app/views/messages/show.html.erb

@@ -1,6 +1,22 @@
 <h2><%= @message.title %></h2>
 
-<%= simple_format @message.content %>
+<div><%= simple_format @message.content %></div>
+<div>
+Subscriber:
+  <% if @message.subscribe_users  %>
+    <% @message.subscribe_users.each do |su| %>
+      <%= su.short_name %>
+    <% end %>
+  <% end %>  
+</div>
+<div>
+  <% if @message.like_users  %>
+    <% @message.like_users.each do |su| %>
+      <%= su.short_name %> 
+    <% end %>
+  <% end %>  
+  likes
+</div>
 
 <h2>Comments list</h2>
 
@@ -19,13 +35,14 @@
 
 <% @message.comments.each do |comment| %>
 
-  <p><%= simple_format comment.content %> at <%= comment.created_at.to_s(:short) %> by <%= comment.user.display_name %>
+  <div id="comment-<%= comment.id %>">
+    <%= simple_format comment.content %> at <%= comment.created_at.to_s(:short) %> by <%= comment.user.display_name %>
 
     <% if comment.user == current_user %>
       <%# TODO: 修改成 AJAX 版本的刪除 %>
-      <%= link_to "Delete", message_comment_path(@message, comment), :method => :delete, :data => { :confirm => "Are u sure?"} %>
+      <%= link_to "Delete", message_comment_path(@message, comment), :method => :delete, :remote => true, :data => { :confirm => "Are u sure?"} %>
     <% end %>
-  </p>
+  </div>
 
 <% end %>
 

config/routes.rb

@@ -3,8 +3,14 @@
 
   resources :messages do
     resources :comments
+    resources :subscribes, only: [:create, :destroy] 
+    resources :likes, only: [:create, :destroy] 
   end
 
+  scope :path => '/api/v1/', :module => "api_v1", :as => 'v1', :defaults => { :format => :json } do
+  resources :messages, :only => :index
+end
+
   # The priority is based upon order of creation: first created -> highest priority.
   # See how all your routes lay out with "rake routes".
 

db/migrate/20161112063728_create_likes.rb

@@ -0,0 +1,11 @@
+class CreateLikes < ActiveRecord::Migration
+  def change
+    create_table :likes do |t|
+      t.integer :user_id
+      t.integer :message_id
+      t.timestamps null: false
+    end
+    add_index :likes, :user_id
+    add_index :likes, :message_id
+  end
+end

db/migrate/20161112063936_create_subscribes.rb

@@ -0,0 +1,11 @@
+class CreateSubscribes < ActiveRecord::Migration
+  def change
+    create_table :subscribes do |t|
+      t.integer :user_id
+      t.integer :message_id
+      t.timestamps null: false
+    end
+    add_index :subscribes, :user_id
+    add_index :subscribes, :message_id
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150728165437) do
+ActiveRecord::Schema.define(version: 20161112063936) do
 
   create_table "comments", force: :cascade do |t|
     t.text     "content"
@@ -23,6 +23,16 @@
 
   add_index "comments", ["message_id"], name: "index_comments_on_message_id"
 
+  create_table "likes", force: :cascade do |t|
+    t.integer  "user_id"
+    t.integer  "message_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_index "likes", ["message_id"], name: "index_likes_on_message_id"
+  add_index "likes", ["user_id"], name: "index_likes_on_user_id"
+
   create_table "messages", force: :cascade do |t|
     t.string   "title"
     t.text     "content"
@@ -36,6 +46,16 @@
   add_index "messages", ["status"], name: "index_messages_on_status"
   add_index "messages", ["user_id"], name: "index_messages_on_user_id"
 
+  create_table "subscribes", force: :cascade do |t|
+    t.integer  "user_id"
+    t.integer  "message_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_index "subscribes", ["message_id"], name: "index_subscribes_on_message_id"
+  add_index "subscribes", ["user_id"], name: "index_subscribes_on_user_id"
+
   create_table "users", force: :cascade do |t|
     t.string   "email",                  default: "", null: false
     t.string   "encrypted_password",     default: "", null: false

lib/tasks/dev.rake

@@ -17,10 +17,16 @@ namespace :dev do
                            :content => Faker::Lorem.paragraph,
                            :user => users.sample,
                            :created_at => Time.now - rand(30).days )
+
       5.times do
         m.comments.create!( :content => Faker::Lorem.paragraph,
                             :user => users.sample )
       end
+
+      2.times do 
+        Subscribe.create!( :message_id => m.id, :user => users.sample )
+        Like.create!( :message_id => m.id, :user => users.sample )
+      end  
     end
   end
 

spec/models/like_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Like, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/subscribe_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Subscribe, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/user_spec.rb

@@ -25,11 +25,19 @@
   describe "#words_count" do
     before do
       # TODO: 加 Message 和 Comment 測試資料
+      @other_user = User.create!( :email => Faker::Internet.email.to_s, :password => "12345678")
+
+      m = Message.create!( :title => "Hello world",
+                           :content => "where is the classroom",
+                           :user => @other_user )
+
+        m.comments.create!( :content => "Give me some space", :user => @other_user )
+
     end
 
     it "加總該使用者的所有 Mesasge 和 Comment 的總字數" do
       # TODO: 測試 words_count 方法
-
+      expect( @other_user.words_count ).to eq(10)
     end
   end