richard

app/assets/javascripts/api_v1/messages.coffee

@@ -0,0 +1,3 @@
+# 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/assets/stylesheets/api_v1/messages.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the api_v1::messages controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/api_v1/messages_controller.rb

@@ -0,0 +1,5 @@
+class ApiV1::MessagesController < ApplicationController
+	def index
+		@messages=Message.all
+	end
+end

app/controllers/comments_controller.rb

@@ -15,8 +15,11 @@ def create
   def destroy
     @comment = current_user.comments.find( params[:id] )
     @comment.destroy
+    respond_to do |format|
+      format.html { redirect_to :back }
+      format.js
+    end
 
-    redirect_to :back
   end
 
   protected

app/controllers/messages_controller.rb

@@ -4,19 +4,22 @@ class MessagesController < ApplicationController
 
   def index
     # TODO: fix N+1 queries for user and comments
-    @messages = Message.order("id DESC").page( params[:page] )
-
+#    @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.where( :status => "pending" )
+      @messages = @messages.pending
     elsif params[:status] == "completed"
       # TODO: @messages = @messages.completed
-      @messages = @messages.where( :status => "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.where( ["created_at >= ?", Time.now - params[:days].to_i.days ] )
+      @messages=@messages.within_days(params[:days].to_i)
     end
   end
 

app/helpers/api_v1/messages_helper.rb

@@ -0,0 +1,2 @@
+module ApiV1::MessagesHelper
+end

app/models/like.rb

@@ -0,0 +1,4 @@
+class Like < ActiveRecord::Base
+	belongs_to :user
+	belongs_to :message
+end

app/models/message.rb

@@ -1,8 +1,14 @@
 class Message < ActiveRecord::Base
 
   belongs_to :user
-
+  has_many :subscriptions
+  has_many :likes
   has_many :comments, :dependent => :destroy
+  scope :within_days,  lambda{ |t| where( ["created_at >= ?", Time.now-t.days ] )}    
+  scope :pending, -> {where( :status => "pending" )}
+  scope :completed, ->{where( :status => "completed" )}
+
+
 
   def last_comment_summary
     self.comments.last.try(:content).try(:truncate, 20)

app/models/subscription.rb

@@ -0,0 +1,4 @@
+class Subscription < ActiveRecord::Base
+	belongs_to :user
+	belongs_to :message
+end

app/models/user.rb

@@ -3,7 +3,8 @@ class User < ActiveRecord::Base
   # :confirmable, :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
-
+  has_many :subscriptions
+  has_many :likes
   has_many :messages
   has_many :comments
 
@@ -13,6 +14,7 @@ def display_name
 
   def posts_count
     # TODO: 請完成我
+    self.comments.count+self.messages.count
   end
 
   def words_count

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

@@ -0,0 +1,6 @@
+json.id m.id
+json.status m.status
+json.category_name m.category_name
+json.title m.title
+json.content m.content
+json.created_at m.created_at

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

@@ -0,0 +1,5 @@
+json.results do
+  json.array!(@messages) do |m|
+    json.partial! 'msg', m: m
+  end
+end

app/views/comments/destroy.js.erb

@@ -0,0 +1,2 @@
+alert("p-<%=@comment.id%>")
+$('#p-<%=@comment.id%>').remove();

app/views/messages/show.html.erb

@@ -17,15 +17,28 @@
 
 <% end %>
 
+<p>who like:</p>
+<ul>
+<% @message.likes.each do |l|%>
+  <li><%=l.user.display_name%></li> 
+<%end%>
+</ul>
+<p>who subscribe:</p>
+<ul>
+<% @message.subscriptions.each do |s|%>
+  <li><%= s.user.display_name%></li> 
+<%end%>
+</ul>
 <% @message.comments.each do |comment| %>
-
+  <div id="p-<%=comment.id%>">
   <p><%= 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, :data => { :confirm => "Are u sure?"} %>
+      <%= link_to ' delete by AJAX', message_comment_path(@message, comment), :remote=>true, :method => :delete%>
     <% end %>
   </p>
-
+  </div>
 <% end %>
 

config/routes.rb

@@ -4,6 +4,9 @@
   resources :messages do
     resources :comments
   end
+  scope :path => '/api/v1/', :module => "api_v1", :as => 'v1', :defaults => { :format => :json } do
+    resources :messages
+  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/20160429094848_create_subscriptions.rb

@@ -0,0 +1,10 @@
+class CreateSubscriptions < ActiveRecord::Migration
+  def change
+    create_table :subscriptions do |t|
+      t.integer :user_id
+      t.integer :message_id
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160429095039_create_likes.rb

@@ -0,0 +1,10 @@
+class CreateLikes < ActiveRecord::Migration
+  def change
+    create_table :likes do |t|
+      t.integer :user_id
+      t.integer :message_id
+
+      t.timestamps null: false
+    end
+  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: 20160429095039) do
 
   create_table "comments", force: :cascade do |t|
     t.text     "content"
@@ -23,6 +23,13 @@
 
   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
+
   create_table "messages", force: :cascade do |t|
     t.string   "title"
     t.text     "content"
@@ -36,6 +43,13 @@
   add_index "messages", ["status"], name: "index_messages_on_status"
   add_index "messages", ["user_id"], name: "index_messages_on_user_id"
 
+  create_table "subscriptions", 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
+
   create_table "users", force: :cascade do |t|
     t.string   "email",                  default: "", null: false
     t.string   "encrypted_password",     default: "", null: false

lib/tasks/dev.rake

@@ -17,6 +17,10 @@ namespace :dev do
                            :content => Faker::Lorem.paragraph,
                            :user => users.sample,
                            :created_at => Time.now - rand(30).days )
+      2.times do
+        m.subscriptions.create(:user => users.sample)
+        m.likes.create(:user => users.sample)
+      end
       5.times do
         m.comments.create!( :content => Faker::Lorem.paragraph,
                             :user => users.sample )

spec/controllers/api_v1/messages_controller_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ApiV1::MessagesController, type: :controller do
+
+end

spec/helpers/api_v1/messages_helper_spec.rb

@@ -0,0 +1,15 @@
+require 'rails_helper'
+
+# Specs in this file have access to a helper object that includes
+# the ApiV1::MessagesHelper. For example:
+#
+# describe ApiV1::MessagesHelper do
+#   describe "string concat" do
+#     it "concats two strings with spaces" do
+#       expect(helper.concat_strings("this","that")).to eq("this that")
+#     end
+#   end
+# end
+RSpec.describe ApiV1::MessagesHelper, type: :helper do
+  pending "add some examples to (or delete) #{__FILE__}"
+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/subscription_spec.rb

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

spec/models/user_spec.rb

@@ -25,11 +25,13 @@
   describe "#words_count" do
     before do
       # TODO: 加 Message 和 Comment 測試資料
+      m2=@user.messages.create!(:title =>"haha", :content=>"wa" )
+      @user.comments.create!(:message => m2, :content => "hey" )
     end
-
+    # puts @user.comments
     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( @user.words_count ).to eq(9)
     end
   end