diff --git a/module/bug/control.php b/module/bug/control.php
index 090960e272..498efd42d6 100644
--- a/module/bug/control.php
+++ b/module/bug/control.php
@@ -353,7 +353,7 @@ class bug extends control
         if(!empty($_POST))
         {
             $actions = $this->bug->batchCreate($productID);
-            foreach($actions as $bugID => $action) $this->sendmail($bugID, $actionID);
+            foreach($actions as $bugID => $actionID) $this->sendmail($bugID, $actionID);
             die(js::locate($this->session->bugList, 'parent'));
         }
 
@@ -377,7 +377,6 @@ class bug extends control
         $this->view->position[] = html::a($this->createLink('bug', 'browse', "productID=$productID"), $this->products[$productID]);
         $this->view->position[] = $this->lang->bug->batchCreate;
 
-        $this->view->projectBuilds    = $projectBuilds;
         $this->view->productID        = $productID;
         $this->view->stories          = $stories;
         $this->view->builds           = $builds;
diff --git a/module/bug/model.php b/module/bug/model.php
index edc12912e8..c2b54c6153 100644
--- a/module/bug/model.php
+++ b/module/bug/model.php
@@ -286,6 +286,7 @@ class bugModel extends model
             {
                 $oldBug = $this->getByID($bugID);
 
+                $bug = new stdclass();
                 $bug->lastEditedBy   = $this->app->user->account;
                 $bug->lastEditedDate = $now;
                 $bug->type           = $this->post->types[$bugID];
diff --git a/module/build/model.php b/module/build/model.php
index f8771c8c98..225d71712c 100644
--- a/module/build/model.php
+++ b/module/build/model.php
@@ -113,6 +113,7 @@ class buildModel extends model
      */
     public function create($projectID)
     {
+        $build = new stdclass();
         $build->stories = '';
         $build->bugs    = '';
 
@@ -169,16 +170,20 @@ class buildModel extends model
      */
     public function updateLinkedBug($build)
     {
-        $bugs = $this->dao->select('*')->from(TABLE_BUG)->where('id')->in($build->bugs)->fetchAll();
+        $bugs = empty($build->bugs) ? '' : $this->dao->select('*')->from(TABLE_BUG)->where('id')->in($build->bugs)->fetchAll();
         $now  = helper::now();
 
         $resolvedPairs = array();
-        foreach($this->post->bugs as $key => $bugID)
+        if(isset($_POST['bugs']))
         {
-            if(isset($_POST['resolvedBy'][$key]))$resolvedPairs[$bugID] = $this->post->resolvedBy[$key];
+            foreach($this->post->bugs as $key => $bugID)
+            {
+                if(isset($_POST['resolvedBy'][$key]))$resolvedPairs[$bugID] = $this->post->resolvedBy[$key];
+            }
         }
 
         $this->loadModel('action');
+        if(!$bugs) return false;
         foreach($bugs as $bug)
         {
             if($bug->status == 'resolved') continue;
diff --git a/module/group/model.php b/module/group/model.php
index aa02e19f17..1fd47ba7bf 100644
--- a/module/group/model.php
+++ b/module/group/model.php
@@ -224,7 +224,8 @@ class groupModel extends model
                 {
                     foreach($moduleActions as $actionName)
                     {
-                        $data->group = $groupID;
+                        $data         = new stdclass();
+                        $data->group  = $groupID;
                         $data->module = $moduleName;
                         $data->method = $actionName;
                         $this->dao->replace(TABLE_GROUPPRIV)->data($data)->exec();
@@ -244,7 +245,8 @@ class groupModel extends model
             {
                 foreach($moduleActions as $actionName)
                 {
-                    $data->group = $groupID;
+                    $data         = new stdclass();
+                    $data->group  = $groupID;
                     $data->module = $moduleName;
                     $data->method = $actionName;
                     $this->dao->insert(TABLE_GROUPPRIV)->data($data)->exec();
@@ -268,6 +270,7 @@ class groupModel extends model
         {
             foreach($this->post->groups as $group)
             {
+                $data         = new stdclass();
                 $data->group  = $group;
                 $data->module = $this->post->module;
                 $data->method = $action;
@@ -293,6 +296,7 @@ class groupModel extends model
         if($this->post->members == false) return;
         foreach($this->post->members as $account)
         {
+            $data          = new stdclass();
             $data->account = $account;
             $data->group   = $groupID;
             $this->dao->insert(TABLE_USERGROUP)->data($data)->exec();
diff --git a/module/my/view/testcase.html.php b/module/my/view/testcase.html.php
index be3985d65c..ca7a21ee59 100644
--- a/module/my/view/testcase.html.php
+++ b/module/my/view/testcase.html.php
@@ -62,7 +62,7 @@
         <td><?php echo $users[$case->lastRunner];?></td>
         <td><?php if(!helper::isZeroDate($case->lastRunDate)) echo date(DT_MONTHTIME1, strtotime($case->lastRunDate));?></td>
         <td class='<?php echo $case->lastRunResult;?>'><?php if($case->lastRunResult) echo $lang->testcase->resultList[$case->lastRunResult];?></td>
-        <td class='<?php echo $run->status;?>'><?php echo $lang->testcase->statusList[$case->status];?></td>
+        <td class='<?php if(isset($run)) echo $run->status;?>'><?php echo $lang->testcase->statusList[$case->status];?></td>
         <td>
         <?php
         common::printIcon('testtask', 'runCase', "runID=0&caseID=$case->id&version=$case->version", '', 'list', '', '', 'iframe');
diff --git a/module/product/model.php b/module/product/model.php
index f9d71a4b30..7fa4e35290 100644
--- a/module/product/model.php
+++ b/module/product/model.php
@@ -604,8 +604,9 @@ class productModel extends model
         }
 
         $cases = $this->dao->select('DISTINCT story')->from(TABLE_CASE)->where('story')->in($storyIDs)->fetchAll();
+        $rate  = count($stories) == 0 ? 0 : round(count($cases) / count($stories), 2);
 
-        return sprintf($this->lang->product->storySummary, count($stories), $totalEstimate, round(count($cases) / count($stories), 2) * 100 . "%");
+        return sprintf($this->lang->product->storySummary, count($stories), $totalEstimate, $rate * 100 . "%");
     }
 
     /**
diff --git a/module/project/view/task.html.php b/module/project/view/task.html.php
index b2c4626ea1..8eef85b608 100644
--- a/module/project/view/task.html.php
+++ b/module/project/view/task.html.php
@@ -16,7 +16,6 @@
 <?php include '../../common/view/treeview.html.php';?>
 <?php include './taskheader.html.php';?>
 <?php js::set('moduleID', $moduleID);?>
-<?php js::set('productID', $productID);?>
 <script language='Javascript'>
 var browseType  = '<?php echo $browseType;?>';
 </script>
diff --git a/module/qa/lang/en.php b/module/qa/lang/en.php
index 90beca73fb..b4cf228238 100644
--- a/module/qa/lang/en.php
+++ b/module/qa/lang/en.php
@@ -9,5 +9,6 @@
  * @version     $Id: en.php 4129 2013-01-18 01:58:14Z wwccss $
  * @link        http://www.zentao.net
  */
+$lang->qa = new stdclass();
 $lang->qa->common  = 'Test';
 $lang->qa->index   = "Index";
diff --git a/module/qa/lang/zh-cn.php b/module/qa/lang/zh-cn.php
index 6be68d0573..9335c6594a 100644
--- a/module/qa/lang/zh-cn.php
+++ b/module/qa/lang/zh-cn.php
@@ -9,5 +9,6 @@
  * @version     $Id: zh-cn.php 4129 2013-01-18 01:58:14Z wwccss $
  * @link        http://www.zentao.net
  */
+$lang->qa = new stdclass();
 $lang->qa->common  = '测试视图';
 $lang->qa->index   = "测试首页";
diff --git a/module/release/model.php b/module/release/model.php
index 49017c7d9f..1faf3d84bf 100644
--- a/module/release/model.php
+++ b/module/release/model.php
@@ -98,7 +98,7 @@ class releaseModel extends model
 
         $this->dao->insert(TABLE_RELEASE)->data($release)->autoCheck()->batchCheck($this->config->release->create->requiredFields, 'notempty')->check('name','unique')->exec();
         $releaseID = $this->dao->lastInsertID();
-        $this->dao->update(TABLE_STORY)->set('stage')->eq('released')->where('id')->in($release->stories)->exec();
+        if($release->stories) $this->dao->update(TABLE_STORY)->set('stage')->eq('released')->where('id')->in($release->stories)->exec();
         if(!dao::isError()) return $releaseID;
     }
 
diff --git a/module/story/model.php b/module/story/model.php
index 5e83273df1..79855d7c14 100644
--- a/module/story/model.php
+++ b/module/story/model.php
@@ -222,6 +222,7 @@ class storyModel extends model
                 $storyID = $this->dao->lastInsertID();
                 $this->setStage($storyID);
 
+                $specData[$i] = new stdclass();
                 $specData[$i]->story   = $storyID;
                 $specData[$i]->version = 1;
                 $specData[$i]->title   = htmlspecialchars($stories->title[$i]);
@@ -230,6 +231,7 @@ class storyModel extends model
 
                 $this->loadModel('action');
                 $actionID = $this->action->create('story', $storyID, 'Opened', '');
+                $mails[$i] = new stdclass();
                 $mails[$i]->storyID  = $storyID;
                 $mails[$i]->actionID = $actionID;
             }
diff --git a/module/task/control.php b/module/task/control.php
index f3150b8936..d5f78a1d42 100644
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -616,6 +616,7 @@ class task extends control
                 $this->action->logHistory($actionID, $changes);
                 $this->sendmail($taskID, $actionID);
             }
+            if(isonlybody()) die(js::closeColorbox('parent.parent'));
             die(js::locate($this->createLink('task', 'view', "taskID=$taskID"), 'parent'));
         }
 
diff --git a/module/task/model.php b/module/task/model.php
index fc538ee2b4..637c9d735f 100644
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -238,6 +238,7 @@ class taskModel extends model
         {
             $oldTask = $this->getById($taskID);
 
+            $task = new stdclass();
             $task->name           = htmlspecialchars($this->post->names[$taskID]);
             $task->module         = isset($this->post->modules[$taskID]) ? $this->post->modules[$taskID] : 0;
             $task->type           = $this->post->types[$taskID];
@@ -438,6 +439,7 @@ class taskModel extends model
             {
                 if(!$record->consumed[$id]) die(js::alert($this->lang->task->error->consumedThisTime));
                 if($record->left[$id] === '') die(js::alert($this->lang->task->error->left));
+                $estimates[$id] = new stdclass();
                 $estimates[$id]->date     = $record->dates[$id];
                 $estimates[$id]->task     = $taskID;
                 $estimates[$id]->consumed = $record->consumed[$id];
diff --git a/module/testcase/model.php b/module/testcase/model.php
index 02ac94668f..9ffa244a84 100644
--- a/module/testcase/model.php
+++ b/module/testcase/model.php
@@ -285,14 +285,15 @@ class testcaseModel extends model
         /* Initialize cases from the post data.*/
         foreach($caseIDList as $caseID)
         {
+            $case = new stdclass();
             $case->lastEditedBy   = $this->app->user->account;
-            $caee->lastEditedDate = $now;
+            $case->lastEditedDate = $now;
             $case->pri            = $this->post->pris[$caseID];
             $case->status         = $this->post->statuses[$caseID];
             $case->module         = $this->post->modules[$caseID];
             $case->title          = htmlspecialchars($this->post->titles[$caseID]);
             $case->type           = $this->post->types[$caseID];
-            $case->stage          = implode(',', $this->post->stages[$caseID]);
+            $case->stage          = empty($this->post->stages[$caseID]) ? '' : implode(',', $this->post->stages[$caseID]);
 
             $cases[$caseID] = $case;
             unset($case);
diff --git a/module/testtask/view/results.html.php b/module/testtask/view/results.html.php
index d214a25bc0..999c2111a7 100644
--- a/module/testtask/view/results.html.php
+++ b/module/testtask/view/results.html.php
@@ -35,9 +35,9 @@
   ?>
   <tr>
     <th><?php echo $i;?></th>
-    <td><?php echo nl2br($stepResult['desc']);?></td>
-    <td><?php echo nl2br($stepResult['expect']);?></td>
-    <?php if(!empty($result->stepResults)):?>
+    <td><?php if(isset($stepResult['desc'])) echo nl2br($stepResult['desc']);?></td>
+    <td><?php if(isset($stepResult['expect'])) echo nl2br($stepResult['expect']);?></td>
+    <?php if(!empty($stepResult['result'])):?>
     <td class='<?php echo $stepResult['result'];?> a-center'><?php echo $lang->testcase->resultList[$stepResult['result']];?></td>
     <td><?php echo $stepResult['real'];?></td>
   </tr>
diff --git a/module/testtask/view/view.html.php b/module/testtask/view/view.html.php
index 31dc19ebaa..9dc7d84c91 100644
--- a/module/testtask/view/view.html.php
+++ b/module/testtask/view/view.html.php
@@ -13,7 +13,7 @@
 <?php include '../../common/view/header.html.php';?>
 <?php include '../../common/view/kindeditor.html.php';?>
 <div id='titlebar'>
-  <div id='main' <?php if($task->deleted) echo "class='deleted'";?>>TESTTASK #<?php echo $task->id . ' ' . $task->title;?></div>
+  <div id='main' <?php if($task->deleted) echo "class='deleted'";?>>TESTTASK #<?php echo $task->id . ' ' . $task->name;?></div>
   <div>
     <?php
     $browseLink = $this->session->testtaskList ? $this->session->testtaskList : $this->createLink('testtask', 'browse', "productID=$task->product");
diff --git a/module/todo/control.php b/module/todo/control.php
index e63d5ea566..c6ced3db44 100644
--- a/module/todo/control.php
+++ b/module/todo/control.php
@@ -59,7 +59,7 @@ class todo extends control
         $this->view->position[] = $this->lang->todo->common;
         $this->view->position[] = $this->lang->todo->create;
         $this->view->date       = strftime("%Y-%m-%d", strtotime($date));
-        $this->view->time       = date::buildTimeList($this->config->todo->times->begin, $this->config->todo->times->end, $this->config->todo->times->delta);
+        $this->view->times      = date::buildTimeList($this->config->todo->times->begin, $this->config->todo->times->end, $this->config->todo->times->delta);
         $this->view->time       = date::now();
         $this->display();      
     }
diff --git a/module/user/model.php b/module/user/model.php
index 8565a4f9c4..b1cd4077fb 100644
--- a/module/user/model.php
+++ b/module/user/model.php
@@ -329,6 +329,7 @@ class userModel extends model
             $this->dao->delete()->from(TABLE_USERGROUP)->where('account')->eq($oldUser->account)->exec();
             foreach($this->post->groups as $groupID)
             {
+                $data          = new stdclass();
                 $data->account = $this->post->account;
                 $data->group   = $groupID;
                 $this->dao->insert(TABLE_USERGROUP)->data($data)->exec();