zy: delete post

app/controllers/micro_posts_controller.rb

@@ -34,4 +34,16 @@ class MicroPostsController < ApplicationController
     redirect_to microposts_path
   end
 
+  def delete
+    @user = current_user
+    micropost_id = params[:micropost_id].to_i
+    micropost_id = @user.micro_posts.find_by(id: micropost_id)
+    if micropost_id
+      micropost_id.destroy
+      render json: {status:true}
+    else
+      render json: {status:false}
+    end
+  end
+
 end

app/helpers/micro_posts_helper.rb

@@ -9,6 +9,7 @@ module MicroPostsHelper
     if !micro_posts.empty?
       micro_posts.each do |micro_post|
         x = Hash.new()
+        x["postid"] = micro_post.id
         x["title"] = micro_post.title
         x["content"] = micro_post.content
         case micro_post.post_type

app/models/micro_post.rb

@@ -1,4 +1,4 @@
 class MicroPost < ApplicationRecord
-  belongs_to :user, dependent: :destroy
+  belongs_to :user
   has_many :comments, class_name: 'Comment', foreign_key: 'micro_post_id', dependent: :destroy
 end

app/models/user.rb

@@ -5,8 +5,8 @@ class User < ApplicationRecord
     self.picurl = 'images/avatars/default/avatar.png'
   end
 
-  has_many :send_messages, class_name: 'Message', foreign_key: 'send_user'
-  has_many :recieve_messages, class_name: 'Message', foreign_key: 'recieve_user'
+  has_many :send_messages, class_name: 'Message', foreign_key: 'send_user', dependent: :destroy
+  has_many :recieve_messages, class_name: 'Message', foreign_key: 'recieve_user', dependent: :destroy
   has_many :micro_posts, dependent: :destroy
   has_many :comments, class_name: 'Comment', foreign_key: 'user_id', dependent: :destroy
 

app/views/micro_posts/show.html.erb

@@ -60,8 +60,8 @@
 
     <div class="posts">
       <% @micro_posts.each do |micro_post| %>
-          <div class="micro-post">
-            <button class="close" data-dismiss="alert" type="button">×</button>
+          <div class="micro-post" id="<%= micro_post["postid"] %>">
+            <button class="close delete-post" data-dismiss="alert" type="button">×</button>
             <div class="widget-container fluid-height padded">
               <div class="heading col-md-12">
                 <i class="icon-tags"><%= micro_post["type"] %></i>
@@ -79,7 +79,7 @@
               </div>
 
               <div class="col-md-12">
-                <div class="btn btn-default btn-block">
+                <div class="btn btn-default btn-block show-details">
                   查看详情
                 </div>
               </div>
@@ -186,4 +186,27 @@
   function G(id) {
     return document.getElementById(id);
   }
+
+
+  $(".delete-post").bind("click", function () {
+    var errorhtml =  '<div class="alert alert-danger">' +
+        '<button class="close" data-dismiss="alert" type="button">×</button>删除失败</div>';
+    var successhtml =  '<div class="alert alert-success">' +
+        '<button class="close" data-dismiss="alert" type="button">×</button>删除成功</div>';
+    var micropost_id = $(this).parent().attr("id");
+    $.ajax({
+      type: 'get',
+      dataType: 'json',
+      data: {micropost_id: micropost_id},
+      url: '/deletepost',
+      success: function (data, textStatus, jqXHR) {
+        if(data['status'] == true) {
+          $('.posts').before(successhtml);
+        }
+        else {
+          $('.posts').before(errorhtml);
+        }
+      }
+    });
+  });
 </script>

config/routes.rb

@@ -7,10 +7,10 @@ Rails.application.routes.draw do
   get 'logout', to: 'login#logout'
 
   get '/signup', to: 'users#new'
-  get '/profile' ,to: 'users#edit'
+  get '/profile', to: 'users#edit'
 
   get '/main', to: 'main#show'
-  get '/activity',to: 'main#activity'
+  get '/activity', to: 'main#activity'
 
   get '/chat', to: 'chat#index'
   post '/newmsg', to: 'chat#new'
@@ -19,7 +19,9 @@ Rails.application.routes.draw do
   get '/online', to: 'chat#online'
 
   get '/microposts', to: 'micro_posts#show'
-  post 'newpost', to: 'micro_posts#new'
+  post '/newpost', to: 'micro_posts#new'
+  get '/deletepost', to: 'micro_posts#delete'
+
 
   get '/comments', to: 'comments#get'
   post '/newcomment', to: 'comments#new'