diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 22fed67..03146c9 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,19 +2,8 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="585b6f0a-0d20-4a3c-825b-5f85848cbf40" name="Default" comment="">
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/db/development.sqlite3" afterPath="$PROJECT_DIR$/db/development.sqlite3" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.gitignore" afterPath="$PROJECT_DIR$/.gitignore" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/controllers/application_controller.rb" afterPath="$PROJECT_DIR$/app/controllers/application_controller.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/controllers/comments_controller.rb" afterPath="$PROJECT_DIR$/app/controllers/comments_controller.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/controllers/micro_posts_controller.rb" afterPath="$PROJECT_DIR$/app/controllers/micro_posts_controller.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/controllers/users_controller.rb" afterPath="$PROJECT_DIR$/app/controllers/users_controller.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/helpers/application_helper.rb" afterPath="$PROJECT_DIR$/app/helpers/application_helper.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/helpers/chat_helper.rb" afterPath="$PROJECT_DIR$/app/helpers/chat_helper.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/helpers/main_helper.rb" afterPath="$PROJECT_DIR$/app/helpers/main_helper.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/helpers/micro_posts_helper.rb" afterPath="$PROJECT_DIR$/app/helpers/micro_posts_helper.rb" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/helpers/users_helper.rb" afterPath="$PROJECT_DIR$/app/helpers/users_helper.rb" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/app/views/micro_posts/show.html.erb" afterPath="$PROJECT_DIR$/app/views/micro_posts/show.html.erb" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/log/development.log" afterPath="$PROJECT_DIR$/log/development.log" />
     </list>
     <ignored path="guoren.iws" />
@@ -44,11 +33,31 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file leaf-file-name=".gitignore" pinned="false" current-in-tab="true">
+      <file leaf-file-name=".gitignore" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/.gitignore">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="-1126">
+              <caret line="0" column="6" selection-start-line="0" selection-start-column="0" selection-end-line="102" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="user.rb" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/app/models/user.rb">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="0">
-              <caret line="0" column="6" selection-start-line="0" selection-start-column="6" selection-end-line="0" selection-end-column="6" />
+              <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="users_helper.rb" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/app/helpers/users_helper.rb">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="0">
+              <caret line="0" column="18" selection-start-line="0" selection-start-column="18" selection-end-line="0" selection-end-column="18" />
               <folding />
             </state>
           </provider>
@@ -72,7 +81,6 @@
         <option value="$PROJECT_DIR$/app/views/micro_posts/show.html.erb" />
         <option value="$PROJECT_DIR$/app/helpers/main_helper.rb" />
         <option value="$PROJECT_DIR$/app/helpers/micro_posts_helper.rb" />
-        <option value="$PROJECT_DIR$/app/helpers/users_helper.rb" />
         <option value="$PROJECT_DIR$/app/controllers/micro_posts_controller.rb" />
         <option value="$PROJECT_DIR$/app/controllers/application_controller.rb" />
         <option value="$PROJECT_DIR$/app/controllers/comments_controller.rb" />
@@ -80,6 +88,7 @@
         <option value="$PROJECT_DIR$/app/helpers/chat_helper.rb" />
         <option value="$PROJECT_DIR$/app/helpers/application_helper.rb" />
         <option value="$PROJECT_DIR$/.gitignore" />
+        <option value="$PROJECT_DIR$/app/helpers/users_helper.rb" />
       </list>
     </option>
   </component>
@@ -486,12 +495,12 @@
       <option name="presentableId" value="Default" />
       <updated>1482659541785</updated>
       <workItem from="1482659543437" duration="1781000" />
-      <workItem from="1482662034465" duration="9608000" />
+      <workItem from="1482662034465" duration="9803000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="11389000" />
+    <option name="totallyTimeSpent" value="11584000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="23" width="1440" height="804" extended-state="0" />
@@ -503,9 +512,9 @@
       <window_info id="Database" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Find" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.3292683" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
-      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.3292683" sideWeight="0.49713877" order="2" side_tool="false" content_ui="tabs" />
+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.3292683" sideWeight="0.49713877" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
-      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.3292683" sideWeight="0.49427754" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.3292683" sideWeight="0.49427754" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.19670959" sideWeight="0.5070707" order="2" side_tool="true" content_ui="tabs" />
       <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.39972898" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
@@ -625,14 +634,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/models/user.rb">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/views/main/main.html.erb">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="374">
@@ -660,14 +661,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/helpers/users_helper.rb">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/helpers/login_helper.rb">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="0">
@@ -765,9 +758,25 @@
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/.gitignore">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-1126">
+          <caret line="0" column="6" selection-start-line="0" selection-start-column="0" selection-end-line="102" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/models/user.rb">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="0">
-          <caret line="0" column="6" selection-start-line="0" selection-start-column="6" selection-end-line="0" selection-end-column="6" />
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/helpers/users_helper.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="0">
+          <caret line="0" column="18" selection-start-line="0" selection-start-column="18" selection-end-line="0" selection-end-column="18" />
           <folding />
         </state>
       </provider>
diff --git a/app/helpers/users_helper.rb b/app/helpers/users_helper.rb
index 8b13789..2310a24 100644
--- a/app/helpers/users_helper.rb
+++ b/app/helpers/users_helper.rb
@@ -1 +1,2 @@
-
+module UsersHelper
+end
diff --git a/log/development.log b/log/development.log
index 80e450a..eb8e344 100644
--- a/log/development.log
+++ b/log/development.log
@@ -8896,3 +8896,243 @@ app/controllers/chat_controller.rb:1:in `<top (required)>'
   Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
   Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.4ms)
   Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (20.9ms)
+Started GET "/online" for 127.0.0.1 at 2016-12-26 11:00:38 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.5ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (22.0ms)
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:00:38 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.5ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (18.1ms)
+Started GET "/online" for 127.0.0.1 at 2016-12-26 11:00:48 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:00:48 +0800
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.5ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (19.3ms)
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.4ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (17.2ms)
+Started GET "/online" for 127.0.0.1 at 2016-12-26 11:00:58 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:00:58 +0800
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.6ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (18.4ms)
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.6ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (19.9ms)
+Started GET "/online" for 127.0.0.1 at 2016-12-26 11:01:08 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.6ms)
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:01:08 +0800
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (21.4ms)
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.6ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (18.0ms)
+Started GET "/online" for 127.0.0.1 at 2016-12-26 11:01:18 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:01:18 +0800
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.4ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (17.8ms)
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/chat_controller.rb:1:in `<top (required)>'
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb
+  Rendering /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.5ms)
+  Rendered /Users/zhangyu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.text.erb (17.8ms)
+Started GET "/microposts" for 127.0.0.1 at 2016-12-26 11:01:26 +0800
+  
+ActionController::RoutingError (Couldn't find UsersHelper, expected it to be defined in helpers/users_helper.rb):
+  
+app/controllers/application_controller.rb:1:in `<top (required)>'
+app/controllers/micro_posts_controller.rb:1:in `<top (required)>'
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+Started GET "/microposts" for 127.0.0.1 at 2016-12-26 11:02:20 +0800
+Processing by MicroPostsController#show as HTML
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "micro_posts" WHERE "micro_posts"."user_id" = ?  [["user_id", 1]]
+  MicroPost Load (0.1ms)  SELECT "micro_posts".* FROM "micro_posts" WHERE "micro_posts"."user_id" = ? ORDER BY "micro_posts"."post_time" DESC  [["user_id", 1]]
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+  Rendered micro_posts/show.html.erb within layouts/application (2.4ms)
+  Rendered layouts/_title.html.erb (0.3ms)
+  Rendered layouts/_refer.html.erb (0.3ms)
+Completed 200 OK in 38ms (Views: 9.8ms | ActiveRecord: 1.4ms)
+
+
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:02:20 +0800
+Processing by ChatController#notify as JSON
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", false]]
+Completed 200 OK in 5ms (Views: 0.2ms | ActiveRecord: 0.4ms)
+
+
+Started GET "/main" for 127.0.0.1 at 2016-12-26 11:02:24 +0800
+Processing by MainController#show as HTML
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(count_column) FROM (SELECT  1 AS count_column FROM "micro_posts" LIMIT ? OFFSET ?) subquery_for_count  [["LIMIT", 20], ["OFFSET", 0]]
+  MicroPost Load (0.2ms)  SELECT  "micro_posts".* FROM "micro_posts" ORDER BY "micro_posts"."post_time" DESC LIMIT ? OFFSET ?  [["LIMIT", 20], ["OFFSET", 0]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 2], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
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+  Rendered main/main.html.erb within layouts/application (2.7ms)
+  Rendered layouts/_title.html.erb (0.3ms)
+  Rendered layouts/_refer.html.erb (0.3ms)
+Completed 200 OK in 21ms (Views: 10.4ms | ActiveRecord: 0.6ms)
+
+
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:02:24 +0800
+Processing by ChatController#notify as JSON
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", false]]
+Completed 200 OK in 3ms (Views: 0.2ms | ActiveRecord: 0.2ms)
+
+
+Started GET "/microposts" for 127.0.0.1 at 2016-12-26 11:02:30 +0800
+Processing by MicroPostsController#show as HTML
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "micro_posts" WHERE "micro_posts"."user_id" = ?  [["user_id", 1]]
+  MicroPost Load (0.1ms)  SELECT "micro_posts".* FROM "micro_posts" WHERE "micro_posts"."user_id" = ? ORDER BY "micro_posts"."post_time" DESC  [["user_id", 1]]
+  Rendering micro_posts/show.html.erb within layouts/application
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+  Rendered micro_posts/show.html.erb within layouts/application (2.7ms)
+  Rendered layouts/_title.html.erb (0.2ms)
+  Rendered layouts/_refer.html.erb (0.3ms)
+Completed 200 OK in 13ms (Views: 9.3ms | ActiveRecord: 0.3ms)
+
+
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:02:30 +0800
+Processing by ChatController#notify as JSON
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", false]]
+Completed 200 OK in 2ms (Views: 0.1ms | ActiveRecord: 0.2ms)
+
+
+Started GET "/chat" for 127.0.0.1 at 2016-12-26 11:02:32 +0800
+Processing by ChatController#index as HTML
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  Message Load (0.1ms)  SELECT DISTINCT "messages"."send_user" FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", true]]
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 2], ["LIMIT", 1]]
+  Message Load (0.2ms)  SELECT DISTINCT "messages"."recieve_user" FROM "messages" WHERE "messages"."send_user" = ?  [["send_user", 1]]
+  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 2], ["LIMIT", 1]]
+  Message Load (0.1ms)  SELECT DISTINCT "messages"."send_user" FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", false]]
+  Rendering chat/index.html.erb within layouts/application
+  Rendered layouts/_nav.html.erb (0.3ms)
+  Rendered chat/index.html.erb within layouts/application (2.4ms)
+  Rendered layouts/_title.html.erb (0.2ms)
+  Rendered layouts/_refer.html.erb (0.5ms)
+Completed 200 OK in 22ms (Views: 10.2ms | ActiveRecord: 0.8ms)
+
+
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:02:32 +0800
+Processing by ChatController#notify as JSON
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", false]]
+Completed 200 OK in 2ms (Views: 0.1ms | ActiveRecord: 0.2ms)
+
+
+Started GET "/profile" for 127.0.0.1 at 2016-12-26 11:02:36 +0800
+Processing by UsersController#edit as HTML
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+  Rendering users/edit.html.erb within layouts/application
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+  Rendered users/edit.html.erb within layouts/application (2.4ms)
+  Rendered layouts/_title.html.erb (0.3ms)
+  Rendered layouts/_refer.html.erb (0.5ms)
+Completed 200 OK in 14ms (Views: 12.6ms | ActiveRecord: 0.1ms)
+
+
+Started GET "/notify" for 127.0.0.1 at 2016-12-26 11:02:36 +0800
+Processing by ChatController#notify as JSON
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
+   (0.1ms)  SELECT COUNT(*) FROM "messages" WHERE "messages"."recieve_user" = ? AND "messages"."readed" = ?  [["recieve_user", 1], ["readed", false]]
+Completed 200 OK in 3ms (Views: 0.2ms | ActiveRecord: 0.3ms)
+
+
+Started GET "/logout" for 127.0.0.1 at 2016-12-26 11:02:41 +0800
+Processing by LoginController#logout as HTML
+Redirected to http://localhost:3000/login
+Completed 302 Found in 1ms (ActiveRecord: 0.0ms)
+
+
+Started GET "/login" for 127.0.0.1 at 2016-12-26 11:02:41 +0800
+Processing by LoginController#init as HTML
+  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" IS NULL LIMIT ?  [["LIMIT", 1]]
+  Rendering login/init.html.erb within layouts/application
+  Rendered login/init.html.erb within layouts/application (1.6ms)
+  Rendered layouts/_title.html.erb (0.3ms)
+  Rendered layouts/_refer.html.erb (0.4ms)
+Completed 200 OK in 13ms (Views: 11.8ms | ActiveRecord: 0.1ms)
+
+