diff --git a/Gemfile b/Gemfile
index 1d8276799..3784e60d8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,6 +19,10 @@ gem 'acts-as-taggable-on'
 group :development do
   gem 'better_errors', path: 'lib/better_errors'
   gem 'rack-mini-profiler', path: 'lib/rack-mini-profiler'
+  if ENV['PRY']
+    gem 'pry'
+    gem 'pry-nav'
+  end
 end
 
 # Gems used only for assets and not required
diff --git a/app/controllers/welcome_controller.rb b/app/controllers/welcome_controller.rb
index c662c44f7..c92f39d34 100644
--- a/app/controllers/welcome_controller.rb
+++ b/app/controllers/welcome_controller.rb
@@ -21,13 +21,7 @@ class WelcomeController < ApplicationController
   before_filter :entry_select_course, :entry_select_contest, :entry_select_user, :only => [:index]
  
   def index
-    projectActive       = Project.project_entities.active
-    @projectCount       = projectActive.count
-    @projectPublicCount = projectActive.all_public.count
-    @projectHidenCount  = @projectCount - @projectPublicCount
 
-    @developerCount     = User.developer.count
-    @allUsercount       = User.count
   end
 
   def robots
@@ -36,10 +30,7 @@ class WelcomeController < ApplicationController
   end
   
   def course
-    @courseCount = Project.course_entities.count
-    @teacherCount = User.teacher.count
-    @studentCount = User.student.count
-    @logoLink = logolink()
+    @logoLink ||= logolink()
   end
   
   
@@ -121,25 +112,25 @@ class WelcomeController < ApplicationController
     end
   end
 
-  def render(*args)
-    _fake if @fake_filter
-    super
-  end
+  # def render(*args)
+  #   _fake if @fake_filter
+  #   super
+  # end
 
-  private
+  # private
 
-  def fake
-    @fake_filter = true
-  end
+  # def fake
+  #   @fake_filter = true
+  # end
   
-  # 骗子方法
-  def _fake
-    instance_variables.map { |variable|
-      if variable.to_s =~ /Count$/
-        self.instance_variable_set(variable.to_sym,
-           ("1" + (self.instance_variable_get(variable.to_sym).to_s)).to_i)
-      end
-    }
-  end
+  # # 骗子方法
+  # def _fake
+  #   instance_variables.map { |variable|
+  #     if variable.to_s =~ /Count$/
+  #       self.instance_variable_set(variable.to_sym,
+  #          ("1" + (self.instance_variable_get(variable.to_sym).to_s)).to_i)
+  #     end
+  #   }
+  # end
 
 end
diff --git a/app/views/tags/_tag_name.html.erb b/app/views/tags/_tag_name.html.erb
index 4891cc233..dad5d53f7 100644
--- a/app/views/tags/_tag_name.html.erb
+++ b/app/views/tags/_tag_name.html.erb
@@ -51,14 +51,14 @@
 		  
 	    <% when '2' %>
 	    
-	     <% if (ProjectInfo.find_by_project_id(obj.id)).user_id == User.current.id %>
+	     <% if (ProjectInfo.find_by_project_id(obj.id)).try(:user_id) == User.current.id %>
 	       <span class='del'> <%= link_to 'x', :controller => "tags", :action => "remove_tag", :remote => true, :tag_name => tag,
                                           :taggable_id => obj.id, :taggable_type => object_flag %> </span>
 	     <% end %>
 	     
 	     <% when '3' %>
 	     
-	       <% if (ProjectInfo.find_by_project_id(obj.project_id)).user_id == User.current.id %>
+	       <% if (ProjectInfo.find_by_project_id(obj.project_id)).try(:user_id) == User.current.id %>
 	       <span class='del'> <%= link_to 'x', :controller => "tags", :action => "remove_tag", :remote => true, :tag_name => tag,
                                           :taggable_id => obj.id, :taggable_type => object_flag %> </span>
 	     <% end %>
diff --git a/app/views/welcome/course.html.erb b/app/views/welcome/course.html.erb
index 88fd3bf4d..884962629 100644
--- a/app/views/welcome/course.html.erb
+++ b/app/views/welcome/course.html.erb
@@ -259,17 +259,4 @@
 </div>
 <div class="clearfix"></div>
 
-<div class="hidden" style="width:100%;">
-  <div style="width:600px;margin:0px auto;margin-top:80px;">
-    <table style="width:600px;font-size:15px; color: #e8770d;">
-      <tr>
-        <td><strong>当前网站状态</strong></td>
-        <td>活跃课程: <%=@courseCount%></td>
-        <td>高校： 2个</td>
-        <td>教师： <%=@teacherCount%> 名</td>
-        <td>学生： <%=@studentCount%> 名<td>
-      </tr>
-    </table>
-  </div>
-</div>
 <%= render partial: 'link_to_another' %>
\ No newline at end of file
diff --git a/app/views/welcome/index.html.erb b/app/views/welcome/index.html.erb
index 6702f520c..ca99f33dc 100644
--- a/app/views/welcome/index.html.erb
+++ b/app/views/welcome/index.html.erb
@@ -137,16 +137,4 @@
 
 <div class="clearfix"></div>
 
-<div class="hidden" style="width:100%;">
-	<div style="width:600px;margin:0px auto;margin-top:180px;">
-	<table style="width:600px;font-size:15px; color: gray;">
-		<tr>
-			<td><strong>当前网站状态</strong></td>
-			<td>活跃项目：<%=@projectCount%>个</td>
-			<td>私有项目： <%=@projectHidenCount%>个</td>
-			<td>开发者：<%=@allUsercount%>个 </td>
-		</tr>
-	</table>
-	</div>
-</div>
 <%= render partial: 'link_to_another' %>
\ No newline at end of file