diff --git a/app/views/users/_show_user_homework_form.html.erb b/app/views/users/_show_user_homework_form.html.erb
index 43d204508..004c8fec4 100644
--- a/app/views/users/_show_user_homework_form.html.erb
+++ b/app/views/users/_show_user_homework_form.html.erb
@@ -1,35 +1,35 @@
-<% homeworks.each do |homework| %>
-    <ul class="subjectRow">
-      <li class="subjectName fl hidden">
-        <label onclick="show_homework_detail('<%=show_homework_detail_user_path(@user,:homework=>homework.id) %>')">
-          <input type="radio" name="checkMenu" class="mr5" style="vertical-align:middle;" value="<%= homework.id%>"/>
-          <span title="<%= homework.name%>"><%= homework.name%></span>
-        </label>
-      </li>
-      <li class="subjectType fl">
-        <% case homework.homework_type %>
-            <% when 1 %>
-                普通
-            <% when 2 %>
-                编程
-            <% when 3 %>
-                分组
-        <% end %>
-      </li>
-      <li class="subjectCount fl"><%= homework.quotes %></li>
-      <li class="subjectPublisher fl"><%= homework.user.show_name %></li>
-      <li class="fl subjectDate"><%=format_date homework.publish_time %></li>
-    </ul>
-<% end %>
-<script type="text/javascript">
-    function show_homework_detail(url){
-        $.get(
-                url,
-                {
-
-                },
-                function (data) {
-                }
-        );
-    }
+<% homeworks.each do |homework| %>
+    <ul class="subjectRow">
+      <li class="subjectName fl hidden">
+        <label onclick="show_homework_detail('<%=show_homework_detail_user_path(@user,:homework=>homework.id) %>')">
+          <input type="radio" name="checkMenu" class="mr5" style="vertical-align:middle;" value="<%= homework.id%>"/>
+          <span title="<%= homework.name%>"><%= homework.name%></span>
+        </label>
+      </li>
+      <li class="subjectType fl">
+        <% case homework.homework_type %>
+            <% when 1 %>
+                普通
+            <% when 2 %>
+                编程
+            <% when 3 %>
+                分组
+        <% end %>
+      </li>
+      <li class="subjectCount fl"><%= homework.quotes %></li>
+      <li class="subjectPublisher fl hidden"><%= homework.user.show_name %></li>
+      <li class="fl subjectDate"><%=format_date homework.publish_time %></li>
+    </ul>
+<% end %>
+<script type="text/javascript">
+    function show_homework_detail(url){
+        $.get(
+                url,
+                {
+
+                },
+                function (data) {
+                }
+        );
+    }
 </script>
\ No newline at end of file
diff --git a/app/views/users/user_import_homeworks.js.erb b/app/views/users/user_import_homeworks.js.erb
index 3be46e119..ac6665800 100644
--- a/app/views/users/user_import_homeworks.js.erb
+++ b/app/views/users/user_import_homeworks.js.erb
@@ -1,4 +1,6 @@
 $('#ajax-modal').html('<%= escape_javascript(render :partial => 'users/show_user_homeworks') %>');
 showModal('ajax-modal', '1040px');
 $('#ajax-modal').siblings().remove();
-$('#ajax-modal').parent().css("top","20%").css("left","25%").css("position","fixed").css("border","3px solid #269ac9");
\ No newline at end of file
+var mTop = ($(window).height()-646)/2;
+var mLeft = ($(window).width()-1054)/2;
+$('#ajax-modal').parent().css("border","3px solid #269ac9").css("top","mTop").css("left","mLeft").css("position","fixed");
\ No newline at end of file
diff --git a/db/schema.rb b/db/schema.rb
index 32370c4a7..8951e8c1f 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1374,7 +1374,6 @@ ActiveRecord::Schema.define(:version => 20160128024452) do
     t.integer  "changeset_num",     :default => 0
     t.integer  "board_message_num", :default => 0
     t.integer  "board_num",         :default => 0
-    t.integer  "act_num",           :default => 0
     t.integer  "attach_num",        :default => 0
     t.datetime "commit_time"
   end
@@ -1863,25 +1862,6 @@ ActiveRecord::Schema.define(:version => 20160128024452) do
   add_index "user_statuses", ["grade"], :name => "index_user_statuses_on_grade"
   add_index "user_statuses", ["watchers_count"], :name => "index_user_statuses_on_watchers_count"
 
-  create_table "user_wechats", :force => true do |t|
-    t.integer  "subscribe"
-    t.string   "openid"
-    t.string   "nickname"
-    t.integer  "sex"
-    t.string   "language"
-    t.string   "city"
-    t.string   "province"
-    t.string   "country"
-    t.string   "headimgurl"
-    t.string   "subscribe_time"
-    t.string   "unionid"
-    t.string   "remark"
-    t.integer  "groupid"
-    t.integer  "user_id"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
-  end
-
   create_table "users", :force => true do |t|
     t.string   "login",                           :default => "",    :null => false
     t.string   "hashed_password",   :limit => 40, :default => "",    :null => false
@@ -1957,14 +1937,6 @@ ActiveRecord::Schema.define(:version => 20160128024452) do
     t.datetime "updated_at",  :null => false
   end
 
-  create_table "wechat_logs", :force => true do |t|
-    t.string   "openid",       :null => false
-    t.text     "request_raw"
-    t.text     "response_raw"
-    t.text     "session_raw"
-    t.datetime "created_at",   :null => false
-  end
-
   create_table "wiki_content_versions", :force => true do |t|
     t.integer  "wiki_content_id",                                       :null => false
     t.integer  "page_id",                                               :null => false