实现点赞功能

Author: liuzxc

app/assets/stylesheets/application.scss

@@ -15,6 +15,10 @@
   color: green;
 }
 
+.like_color {
+  color: red;
+}
+
 .badge_color {
   color: white;
   background-color: #269abc;

app/controllers/articles_controller.rb

@@ -87,26 +87,25 @@ def favorite
     Rails::logger.info("－－－－－－－－－－#{params}－－－－－－－－－－－－－－－")
       @article = Article.find(params[:id])
       @article.favorites.create(user_id: current_user.id)
-       respond_to do |format|
-      format.js
-    end
-      # render :favorite
+      render :favorite
   end
 
   def unfavorite
     @article = Article.find(params[:id])
     favorite = Favorite.where(user_id: current_user.id, article_id: @article.id).first
     favorite.destroy
     render :favorite
-    # redirect_to :back
-    # respond_to do |format|
-    #   format.html { render 'favorite'}
-    #   format.js
-    # end
-    # render partial: 'favorite'
   end
 
+  def like
+    @article = Article.find(params[:id])
+    @article.incr(like: 1)
+  end
 
+  def unlike
+    @article = Article.find(params[:id])
+    @article.incr(like: -1)
+  end
 
   private
     # Use callbacks to share common setup or constraints between actions.

app/controllers/comments_controller.rb

@@ -6,13 +6,11 @@ class CommentsController < ApplicationController
   # end
 
   def edit
-    @comment
   end
 
   def create
     @article = Article.find(params[:article_id])
     @comment = @article.comments.create!(comment_params.merge(name: current_user.user_name))
-    # redirect_to user_article_path(@article.user, @article), :notice => "Comment created!"
     render :show
   end
 
@@ -27,7 +25,7 @@ def update
   def destroy
     @comment.destroy
     respond_to do |format|
-      format.html { redirect_to user_article_path(@article.user, @article), notice: 'User was successfully destroyed.' }
+      format.html { redirect_to user_article_path(@article.user, @article), notice: 'comment was successfully destroyed.' }
       format.json { head :no_content }
     end
   end

app/controllers/favorites_controller.rb

@@ -0,0 +1,19 @@
+class FavoritesController < ApplicationController
+
+  def create
+    Rails::logger.info("－－－－－－－－－－#{params}－－－－－－－－－－－－－－－")
+    @article = Article.find(params[:article_id])
+    current_user.favorites.create(article_id: params[:article_id])
+    render :favorite
+  end
+
+  def destroy
+    Rails::logger.info("－－－－－－－－－－#{params}－－－－－－－－－－－－－－－")
+    favorite = Favorite.find(params[:id])
+    Rails::logger.info("－－－－－－－－－－#{favorite}－－－－－－－－－－－－－－－")
+    @article = favorite.article
+    favorite.destroy
+    render :favorite
+  end
+
+end

app/controllers/likes_controller.rb

@@ -0,0 +1,18 @@
+class LikesController < ApplicationController
+
+  def create
+    Rails::logger.info("-------#{params}------------")
+    @article = Article.find(params[:article_id])
+    current_user.likes.create(article_id: @article.id)
+    render :like
+  end
+
+  def destroy
+    Rails::logger.info("-------#{params}------------")
+    like = Like.find(params[:id])
+    @article = like.article
+    like.destroy
+    render :like
+  end
+
+end

app/models/article.rb

@@ -3,12 +3,14 @@ class Article
   field :title, type: String
   field :content, type: String
   field :category, type: String, default: 'diary'
+  field :like, type: Integer, default: 0
 
   validates :title, presence: true
 
   embeds_many :comments
   belongs_to :user
   has_many :favorites
+  has_many :likes
 
   paginates_per 10
 

app/models/like.rb

@@ -0,0 +1,5 @@
+class Like
+  include Mongoid::Document
+  belongs_to :user
+  belongs_to :article
+end

app/models/user.rb

@@ -17,6 +17,7 @@ class User
 
   has_many :articles, dependent: :destroy
   has_many :favorites
+  has_many :likes
 
   has_secure_password
 end

app/views/articles/_favorite_link.html.erb

@@ -14,11 +14,15 @@
   <div class="panel-footer" >
     <div class="row">
 
-      <div id="favorite" class="col-md-6 text-left">
-        <%= render 'favorite_link' %>
+      <div id="favorite" class="col-md-4 text-left">
+        <%= render 'favorites/favorite_link' %>
       </div>
 
-      <div class="col-md-6 text-right">
+      <div id="like" class="col-md-4 text-center">
+        <%= render 'likes/like_link' %>
+      </div>
+
+      <div class="col-md-4 text-right">
         <%= render 'edit_delete' %>
       </div>
 
@@ -28,12 +32,6 @@
 </div>
 
 <div id="comment">
-  <% if @article.comments.size > 0 %>
-    <%= render 'comments/show', object: @article %>
-  <% end %>
+    <%= render 'comments/show' %>
 </div>
 
-<%= render 'comments/form' %>
-
-
-