diff --git a/module/bug/control.php b/module/bug/control.php
index 95ac916703..d583864396 100644
--- a/module/bug/control.php
+++ b/module/bug/control.php
@@ -643,6 +643,7 @@ class bug extends control
         }
 
         $bugIDList = $this->post->bugIDList ? $this->post->bugIDList : die(js::locate($this->session->bugList, 'parent'));
+        $bugIDList = array_unique($bugIDList);
         /* Initialize vars.*/
         $bugs = $this->dao->select('*')->from(TABLE_BUG)->where('id')->in($bugIDList)->fetchAll('id');
 
@@ -776,6 +777,7 @@ class bug extends control
         if($this->post->bugIDList)
         {
             $bugIDList = $this->post->bugIDList;
+            $bugIDList = array_unique($bugIDList);
             unset($_POST['bugIDList']);
             $allChanges = $this->bug->batchChangeModule($bugIDList, $moduleID);
             if(dao::isError()) die(js::error(dao::getError()));
@@ -802,6 +804,7 @@ class bug extends control
         if(!empty($_POST) && isset($_POST['bugIDList']))
         {
             $bugIDList = $this->post->bugIDList;
+            $bugIDList = array_unique($bugIDList);
             unset($_POST['bugIDList']);
             foreach($bugIDList as $bugID)
             {
@@ -860,7 +863,8 @@ class bug extends control
      */
     public function batchConfirm()
     {
-        $bugIDList  = $this->post->bugIDList ? $this->post->bugIDList : die(js::locate($this->session->bugList, 'parent'));
+        $bugIDList = $this->post->bugIDList ? $this->post->bugIDList : die(js::locate($this->session->bugList, 'parent'));
+        $bugIDList = array_unique($bugIDList);
         $this->bug->batchConfirm($bugIDList);
         if(dao::isError()) die(js::error(dao::getError()));
         foreach($bugIDList as $bugID)
@@ -940,6 +944,7 @@ class bug extends control
     public function batchResolve($resolution, $resolvedBuild = '')
     {
         $bugIDList = $this->post->bugIDList ? $this->post->bugIDList : die(js::locate($this->session->bugList, 'parent'));
+        $bugIDList = array_unique($bugIDList);
         $bugIDList = $this->bug->batchResolve($bugIDList, $resolution, $resolvedBuild);
         if(dao::isError()) die(js::error(dao::getError()));
         foreach($bugIDList as $bugID)
@@ -1116,6 +1121,7 @@ class bug extends control
         if($this->post->bugIDList)
         {
             $bugIDList = $this->post->bugIDList;
+            $bugIDList = array_unique($bugIDList);
 
             /* Reset $_POST. Do not unset that because the function of close need that in model. */
             $_POST = array();
@@ -1161,6 +1167,7 @@ class bug extends control
         }
 
         $bugIDList = $this->post->bugIDList ? $this->post->bugIDList : die(js::locate($this->session->bugList, 'parent'));
+        $bugIDList = array_unique($bugIDList);
         $bugs = $this->dao->select('id, title, status, resolvedBy, openedBuild')->from(TABLE_BUG)->where('id')->in($bugIDList)->fetchAll('id');
 
         $this->bug->setMenu($this->products, $productID, $branch);
diff --git a/module/bug/view/batchedit.html.php b/module/bug/view/batchedit.html.php
index fc839a39ab..2791797bac 100644
--- a/module/bug/view/batchedit.html.php
+++ b/module/bug/view/batchedit.html.php
@@ -57,13 +57,13 @@ $columns = count($visibleFields) + 2;
       </tr>
     </thead>
     <tbody>
-      <?php foreach($bugIDList as $bugID):?>
+      <?php foreach($bugs as $bugID => $bug):?>
       <?php
       if(!$productID)
       {
-          $product = $this->product->getByID($bugs[$bugID]->product);
+          $product = $this->product->getByID($bug->product);
 
-          $plans = $this->loadModel('productplan')->getPairs($bugs[$bugID]->product, $branch);
+          $plans = $this->loadModel('productplan')->getPairs($bug->product, $branch);
           $plans = array('' => '', 'ditto' => $this->lang->bug->ditto) + $plans;
 
           $branches = $product->type == 'normal' ? array('' => '') : $this->loadModel('branch')->getPairs($product->id);
@@ -77,43 +77,43 @@ $columns = count($visibleFields) + 2;
        * Remove designchange, newfeature, trackings from the typeList, because should be tracked in story or task.
        * These thress types if upgrade from bugfree2.x.
        */
-      if($bugs[$bugID]->type != 'designchange') unset($typeList['designchange']);
-      if($bugs[$bugID]->type != 'newfeature')   unset($typeList['newfeature']);
-      if($bugs[$bugID]->type != 'trackthings')  unset($typeList['trackthings']);
+      if($bug->type != 'designchange') unset($typeList['designchange']);
+      if($bug->type != 'newfeature')   unset($typeList['newfeature']);
+      if($bug->type != 'trackthings')  unset($typeList['trackthings']);
       ?>
       <tr class='text-center'>
         <td><?php echo $bugID . html::hidden("bugIDList[$bugID]", $bugID);?></td>
-        <td <?php echo zget($visibleFields, 'type', "class='hidden'")?>><?php echo html::select("types[$bugID]",      $typeList, $bugs[$bugID]->type, 'class=form-control');?></td>
-        <td <?php echo zget($visibleFields, 'severity', "class='hidden'")?>><?php echo html::select("severities[$bugID]", $severityList, $bugs[$bugID]->severity, 'class=form-control');?></td>
-        <td <?php echo zget($visibleFields, 'pri', "class='hidden'")?>><?php echo html::select("pris[$bugID]",       $priList, $bugs[$bugID]->pri, 'class=form-control');?></td>
-        <td style='overflow:visible' title='<?php echo $bugs[$bugID]->title?>'>
+        <td <?php echo zget($visibleFields, 'type', "class='hidden'")?>><?php echo html::select("types[$bugID]",      $typeList, $bug->type, 'class=form-control');?></td>
+        <td <?php echo zget($visibleFields, 'severity', "class='hidden'")?>><?php echo html::select("severities[$bugID]", $severityList, $bug->severity, 'class=form-control');?></td>
+        <td <?php echo zget($visibleFields, 'pri', "class='hidden'")?>><?php echo html::select("pris[$bugID]",       $priList, $bug->pri, 'class=form-control');?></td>
+        <td style='overflow:visible' title='<?php echo $bug->title?>'>
           <div class='input-group'>
-          <?php echo html::hidden("colors[$bugID]", $bugs[$bugID]->color, "data-provide='colorpicker' data-wrapper='input-group-btn fix-border-right' data-pull-menu-right='false' data-btn-tip='{$lang->bug->colorTag}' data-update-text='#titles\\[{$bugID}\\]'");?>
-          <?php echo html::input("titles[$bugID]", $bugs[$bugID]->title, 'class=form-control');?>
+          <?php echo html::hidden("colors[$bugID]", $bug->color, "data-provide='colorpicker' data-wrapper='input-group-btn fix-border-right' data-pull-menu-right='false' data-btn-tip='{$lang->bug->colorTag}' data-update-text='#titles\\[{$bugID}\\]'");?>
+          <?php echo html::input("titles[$bugID]", $bug->title, 'class=form-control');?>
           <div>
         </td>
         <?php if($branchProduct):?>
         <td class='text-left<?php echo zget($visibleFields, 'branch', ' hidden')?>' style='overflow:visible'>
           <?php $branchProductID = $productID ? $productID : $product->id;?>
           <?php $disabled        = (isset($product) and $product->type == 'normal') ? "disabled='disabled'" : '';?>
-          <?php echo html::select("branches[$bugID]", $branches, $bugs[$bugID]->branch, "class='form-control chosen' $disabled");?>
+          <?php echo html::select("branches[$bugID]", $branches, $bug->branch, "class='form-control chosen' $disabled");?>
         </td>
         <?php endif;?>
-        <td class='text-left<?php echo zget($visibleFields, 'productplan', ' hidden')?>' style='overflow:visible'><?php echo html::select("plans[$bugID]", $plans, $bugs[$bugID]->plan, "class='form-control chosen'");?></td>
-        <td class='text-left<?php echo zget($visibleFields, 'assignedTo', ' hidden')?>' style='overflow:visible'><?php echo html::select("assignedTos[$bugID]", $users, $bugs[$bugID]->assignedTo, "class='form-control chosen'");?></td>
-        <td class='<?php echo zget($visibleFields, 'deadline', ' hidden')?>' style='overflow:visible'><?php echo html::input("deadlines[$bugID]", $bugs[$bugID]->deadline, "class='form-control form-date'");?></td>
-        <td <?php echo zget($visibleFields, 'status', "class='hidden'")?>><?php echo html::select("statuses[$bugID]", $statusList, $bugs[$bugID]->status, 'class=form-control');?></td>
-        <td <?php echo zget($visibleFields, 'os', "class='hidden'")?>><?php echo html::select("os[$bugID]", $osList, $bugs[$bugID]->os, 'class=form-control');?></td>
-        <td <?php echo zget($visibleFields, 'browser', "class='hidden'")?>><?php echo html::select("browsers[$bugID]", $browserList, $bugs[$bugID]->browser, 'class=form-control');?></td>
-        <td <?php echo zget($visibleFields, 'keywords', "class='hidden'")?>><?php echo html::input("keywords[$bugID]", $bugs[$bugID]->keywords, 'class=form-control');?></td>
-        <td class='text-left<?php echo zget($visibleFields, 'resolvedBy', ' hidden')?>' style='overflow:visible'><?php echo html::select("resolvedBys[$bugID]", $users, $bugs[$bugID]->resolvedBy, "class='form-control chosen'");?></td>
+        <td class='text-left<?php echo zget($visibleFields, 'productplan', ' hidden')?>' style='overflow:visible'><?php echo html::select("plans[$bugID]", $plans, $bug->plan, "class='form-control chosen'");?></td>
+        <td class='text-left<?php echo zget($visibleFields, 'assignedTo', ' hidden')?>' style='overflow:visible'><?php echo html::select("assignedTos[$bugID]", $users, $bug->assignedTo, "class='form-control chosen'");?></td>
+        <td class='<?php echo zget($visibleFields, 'deadline', ' hidden')?>' style='overflow:visible'><?php echo html::input("deadlines[$bugID]", $bug->deadline, "class='form-control form-date'");?></td>
+        <td <?php echo zget($visibleFields, 'status', "class='hidden'")?>><?php echo html::select("statuses[$bugID]", $statusList, $bug->status, 'class=form-control');?></td>
+        <td <?php echo zget($visibleFields, 'os', "class='hidden'")?>><?php echo html::select("os[$bugID]", $osList, $bug->os, 'class=form-control');?></td>
+        <td <?php echo zget($visibleFields, 'browser', "class='hidden'")?>><?php echo html::select("browsers[$bugID]", $browserList, $bug->browser, 'class=form-control');?></td>
+        <td <?php echo zget($visibleFields, 'keywords', "class='hidden'")?>><?php echo html::input("keywords[$bugID]", $bug->keywords, 'class=form-control');?></td>
+        <td class='text-left<?php echo zget($visibleFields, 'resolvedBy', ' hidden')?>' style='overflow:visible'><?php echo html::select("resolvedBys[$bugID]", $users, $bug->resolvedBy, "class='form-control chosen'");?></td>
         <td <?php echo zget($visibleFields, 'resolution', "class='hidden'")?>>
           <table class='w-p100'>
             <tr>
               <td class='pd-0'>
-                <?php echo html::select("resolutions[$bugID]", $resolutionList, $bugs[$bugID]->resolution, "class=form-control onchange=setDuplicate(this.value,$bugID)");?>
+                <?php echo html::select("resolutions[$bugID]", $resolutionList, $bug->resolution, "class=form-control onchange=setDuplicate(this.value,$bugID)");?>
               </td>
-              <td class='pd-0 w-p50' id='<?php echo 'duplicateBugBox' . $bugID;?>' <?php if($bugs[$bugID]->resolution != 'duplicate') echo "style='display:none'";?>>
+              <td class='pd-0 w-p50' id='<?php echo 'duplicateBugBox' . $bugID;?>' <?php if($bug->resolution != 'duplicate') echo "style='display:none'";?>>
                 <?php echo html::input("duplicateBugs[$bugID]", '', "class=form-control placeholder='{$lang->bug->duplicateBug}'");?>
               </td>
             </tr>
diff --git a/module/story/control.php b/module/story/control.php
index ca02aed857..f7d6a5b7e4 100644
--- a/module/story/control.php
+++ b/module/story/control.php
@@ -400,6 +400,7 @@ class story extends control
         }
 
         $storyIDList = $this->post->storyIDList ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
 
         /* Get edited stories. */
         $stories = $this->story->getByList($storyIDList);
@@ -720,6 +721,7 @@ class story extends control
     public function batchReview($result, $reason = '')
     {
         $storyIDList = $this->post->storyIDList ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
         $actions     = $this->story->batchReview($storyIDList, $result, $reason);
 
         if(dao::isError()) die(js::error(dao::getError()));
@@ -796,6 +798,7 @@ class story extends control
         }
 
         $storyIDList = $this->post->storyIDList ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
 
         /* Get edited stories. */
         $stories = $this->dao->select('*')->from(TABLE_STORY)->where('id')->in($storyIDList)->fetchAll('id');
@@ -861,6 +864,7 @@ class story extends control
     public function batchChangeModule($moduleID)
     {
         $storyIDList = !empty($_POST['storyIDList']) ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
         $allChanges  = $this->story->batchChangeModule($storyIDList, $moduleID);
         if(dao::isError()) die(js::error(dao::getError()));
         foreach($allChanges as $storyID => $changes)
@@ -882,6 +886,7 @@ class story extends control
     public function batchChangePlan($planID, $oldPlanID = 0)
     {
         $storyIDList = !empty($_POST['storyIDList']) ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
         $allChanges  = $this->story->batchChangePlan($storyIDList, $planID, $oldPlanID);
         if(dao::isError()) die(js::error(dao::getError()));
         foreach($allChanges as $storyID => $changes)
@@ -903,6 +908,7 @@ class story extends control
     public function batchChangeBranch($branchID)
     {
         $storyIDList = !empty($_POST['storyIDList']) ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
         $allChanges  = $this->story->batchChangeBranch($storyIDList, $branchID);
         if(dao::isError()) die(js::error(dao::getError()));
         foreach($allChanges as $storyID => $changes)
@@ -924,6 +930,7 @@ class story extends control
     public function batchChangeStage($stage)
     {
         $storyIDList = $this->post->storyIDList ? $this->post->storyIDList : die(js::locate($this->session->storyList, 'parent'));
+        $storyIDList = array_unique($storyIDList);
         $allChanges  = $this->story->batchChangeStage($storyIDList, $stage);
         if(dao::isError()) die(js::error(dao::getError()));
         foreach($allChanges as $storyID => $changes)
diff --git a/module/task/control.php b/module/task/control.php
index 596ea01d78..4a5b9985d1 100644
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -348,6 +348,7 @@ class task extends control
         }
 
         $taskIDList = $this->post->taskIDList ? $this->post->taskIDList : die(js::locate($this->session->taskList, 'parent'));
+        $taskIDList = array_unique($taskIDList);
 
         /* The tasks of project. */
         if($projectID)
@@ -460,6 +461,7 @@ class task extends control
         if($this->post->taskIDList)
         {
             $taskIDList = $this->post->taskIDList;
+            $taskIDList = array_unique($taskIDList);
             unset($_POST['taskIDList']);
             $allChanges = $this->task->batchChangeModule($taskIDList, $moduleID);
             if(dao::isError()) die(js::error(dao::getError()));
@@ -486,6 +488,7 @@ class task extends control
         if(!empty($_POST))
         {
             $taskIDList = $this->post->taskIDList;
+            $taskIDList = array_unique($taskIDList);
             unset($_POST['taskIDList']);
             if(!is_array($taskIDList)) die(js::locate($this->createLink('project', 'task', "projectID=$project"), 'parent'));
             $taskIDList = array_unique($taskIDList);
@@ -890,6 +893,7 @@ class task extends control
         if($this->post->taskIDList)
         {
             $taskIDList = $this->post->taskIDList;
+            $taskIDList = array_unique($taskIDList);
             unset($_POST['taskIDList']);
             unset($_POST['assignedTo']);
             $this->loadModel('action');
@@ -923,6 +927,7 @@ class task extends control
         if($this->post->taskIDList or $skipTaskIdList)
         {
             $taskIDList = $this->post->taskIDList;
+            $taskIDList = array_unique($taskIDList);
             if($skipTaskIdList) $taskIDList = $skipTaskIdList;
             unset($_POST['taskIDList']);
             unset($_POST['assignedTo']);
diff --git a/module/task/model.php b/module/task/model.php
index c46556f34d..b3e7d27501 100644
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -1909,7 +1909,7 @@ class taskModel extends model
                 break;
             case 'name':
                 if(!empty($task->product) && isset($branchGroups[$task->product][$task->branch])) echo "<span class='label label-info label-badge'>" . $branchGroups[$task->product][$task->branch] . '</span> ';
-                if($modulePairs and $task->module) echo "<span class='label label-info label-badge'>" . $modulePairs[$task->module] . '</span> ';
+                if($task->module and isset($modulePairs[$task->module])) echo "<span class='label label-info label-badge'>" . $modulePairs[$task->module] . '</span> ';
                 if($child) echo '<span class="label">'.$this->lang->task->childrenAB.'</span> ';
                 if(!empty($task->team)) echo '<span class="label">'.$this->lang->task->multipleAB.'</span> ';
                 echo $canView ? html::a($taskLink, $task->name, null, "style='color: $task->color'") : "<span style='color: $task->color'>$task->name</span>";
diff --git a/module/testcase/control.php b/module/testcase/control.php
index c6ad633bcb..84f19e59f9 100644
--- a/module/testcase/control.php
+++ b/module/testcase/control.php
@@ -651,6 +651,7 @@ class testcase extends control
         }
 
         $caseIDList = $this->post->caseIDList ? $this->post->caseIDList : die(js::locate($this->session->caseList));
+        $caseIDList = array_unique($caseIDList);
 
         /* Get the edited cases. */
         $cases = $this->testcase->getByList($caseIDList);
@@ -779,6 +780,7 @@ class testcase extends control
     public function batchReview($result)
     {
         $caseIdList = $this->post->caseIDList ? $this->post->caseIDList : die(js::locate($this->session->caseList, 'parent'));
+        $caseIDList = array_unique($caseIDList);
         $actions    = $this->testcase->batchReview($caseIdList, $result);
 
         if(dao::isError()) die(js::error(dao::getError()));
@@ -832,6 +834,7 @@ class testcase extends control
     public function batchDelete($productID = 0)
     {
         $caseIDList = $this->post->caseIDList ? $this->post->caseIDList : die(js::locate($this->session->caseList));
+        $caseIDList = array_unique($caseIDList);
 
         foreach($caseIDList as $caseID) $this->testcase->delete(TABLE_CASE, $caseID);
         die(js::locate($this->session->caseList));
@@ -849,6 +852,7 @@ class testcase extends control
         if($this->post->caseIDList)
         {
             $caseIDList = $this->post->caseIDList;
+            $caseIDList = array_unique($caseIDList);
             unset($_POST['caseIDList']);
             $allChanges = $this->testcase->batchChangeModule($caseIDList, $moduleID);
             if(dao::isError()) die(js::error(dao::getError()));
@@ -873,6 +877,7 @@ class testcase extends control
     public function batchCaseTypeChange($result)
     {
         $caseIdList = $this->post->caseIDList ? $this->post->caseIDList : die(js::locate($this->session->caseList, 'parent'));
+        $caseIDList = array_unique($caseIDList);
         $this->testcase->batchCaseTypeChange($caseIdList, $result);
 
         if(dao::isError()) die(js::error(dao::getError()));
@@ -1004,6 +1009,7 @@ class testcase extends control
     public function batchConfirmStoryChange($productID = 0)
     {
         $caseIDList = $this->post->caseIDList ? $this->post->caseIDList : die(js::locate($this->session->caseList));
+        $caseIDList = array_unique($caseIDList);
 
         foreach($caseIDList as $caseID) $this->confirmStoryChange($caseID,false);
         die(js::locate($this->session->caseList));
diff --git a/module/testtask/control.php b/module/testtask/control.php
index 60e5601185..2c83c01d46 100644
--- a/module/testtask/control.php
+++ b/module/testtask/control.php
@@ -877,6 +877,7 @@ class testtask extends control
         }
 
         $caseIDList = $this->post->caseIDList ? $this->post->caseIDList : die(js::locate($url, 'parent'));
+        $caseIDList = array_unique($caseIDList);
 
         /* The case of tasks of qa. */
         if($productID)