diff --git a/module/bug/control.php b/module/bug/control.php
index 22b69afad8..bd0ae63cb9 100644
--- a/module/bug/control.php
+++ b/module/bug/control.php
@@ -1489,8 +1489,8 @@ class bug extends control
             $relatedBranch  = array('0' => $this->lang->branch->all) + $this->dao->select('id, name')->from(TABLE_BRANCH)->where('id')->in($relatedBranchIdList)->fetchPairs();
             $relatedBuilds  = array('trunk' => $this->lang->trunk) + $this->dao->select('id, name')->from(TABLE_BUILD)->where('id')->in($relatedBuildIdList)->fetchPairs();
             $relatedFiles   = $this->dao->select('id, objectID, pathname, title')->from(TABLE_FILE)->where('objectType')->eq('bug')->andWhere('objectID')->in(@array_keys($bugs))->andWhere('extra')->ne('editor')->fetchGroup('objectID');
+            $relatedModules = $this->loadModel('tree')->getAllModulePairs('bug');
             
-            $this->loadModel('tree');
             foreach($bugs as $bug)
             {
                 if($this->post->fileType == 'csv')
@@ -1509,11 +1509,11 @@ class bug extends control
                 $bug->task    = !isset($relatedTasks[$bug->task])    ? '' : $relatedTasks[$bug->task] . "($bug->task)";
                 $bug->case    = !isset($relatedCases[$bug->case])    ? '' : $relatedCases[$bug->case] . "($bug->case)";
 
+                if(isset($relatedModules[$bug->module]))       $bug->module        = $relatedModules[$bug->module] . "(#$bug->module)";
                 if(isset($relatedBugs[$bug->duplicateBug]))    $bug->duplicateBug  = $relatedBugs[$bug->duplicateBug] . "($bug->duplicateBug)";
                 if(isset($relatedBuilds[$bug->resolvedBuild])) $bug->resolvedBuild = $relatedBuilds[$bug->resolvedBuild] . "(#$bug->resolvedBuild)";
                 if(isset($relatedBranch[$bug->branch]))        $bug->branch        = $relatedBranch[$bug->branch] . "(#$bug->branch)";
-                $bugh->module = $bug->module ? $this->tree->getModulePathByID($bug->module) . "(#$bug->module)" : '';
-
+                
                 if(isset($bugLang->priList[$bug->pri]))               $bug->pri        = $bugLang->priList[$bug->pri];
                 if(isset($bugLang->typeList[$bug->type]))             $bug->type       = $bugLang->typeList[$bug->type];
                 if(isset($bugLang->severityList[$bug->severity]))     $bug->severity   = $bugLang->severityList[$bug->severity];
diff --git a/module/story/control.php b/module/story/control.php
index 961778da79..da76e16c6d 100644
--- a/module/story/control.php
+++ b/module/story/control.php
@@ -1530,8 +1530,8 @@ class story extends control
             $relatedFiles   = $this->dao->select('id, objectID, pathname, title')->from(TABLE_FILE)->where('objectType')->eq('story')->andWhere('objectID')->in(@array_keys($stories))->andWhere('extra')->ne('editor')->fetchGroup('objectID');
             $relatedSpecs   = $this->dao->select('*')->from(TABLE_STORYSPEC)->where('`story`')->in(@array_keys($stories))->orderBy('version desc')->fetchGroup('story');
             $relatedBranch  = array('0' => $this->lang->branch->all) + $this->dao->select('id, name')->from(TABLE_BRANCH)->where('id')->in($relatedBranchIdList)->fetchPairs();
+            $relatedModules = $this->loadModel('tree')->getAllModulePairs();
 
-            $this->loadModel('tree');
             foreach($stories as $story)
             {
                 $story->spec   = '';
@@ -1560,7 +1560,6 @@ class story extends control
                 if(isset($products[$story->product]))      $story->product = $this->post->fileType == 'word' ? $products[$story->product] : $products[$story->product] . "(#$story->product)";
                 if(isset($relatedModules[$story->module])) $story->module  = $this->post->fileType == 'word' ? $relatedModules[$story->module] : $relatedModules[$story->module] . "(#$story->module)";
                 if(isset($relatedBranch[$story->branch]))  $story->branch  = $relatedBranch[$story->branch] . "(#$story->branch)";
-                $story->module = $story->module ? (($this->post->fileType == 'word') ? $this->tree->getModulePathByID($story->module) : $this->tree->getModulePathByID($story->module) . "(#$story->module)") : '';
                 if(isset($story->plan))
                 {
                     $plans = '';
diff --git a/module/task/control.php b/module/task/control.php
index b8fcf1c5db..02d238ed53 100644
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -1378,9 +1378,9 @@ class task extends control
             }
 
             /* Get related objects title or names. */
-            $this->loadModel('tree');
             $relatedStories = $this->dao->select('id,title')->from(TABLE_STORY)->where('id')->in($relatedStoryIdList)->fetchPairs();
             $relatedFiles   = $this->dao->select('id, objectID, pathname, title')->from(TABLE_FILE)->where('objectType')->eq('task')->andWhere('objectID')->in(@array_keys($tasks))->andWhere('extra')->ne('editor')->fetchGroup('objectID');
+            $relatedModules = $this->loadModel('tree')->getAllModulePairs('task');
 
             if($tasks)
             {
@@ -1474,7 +1474,7 @@ class task extends control
                 if(isset($taskLang->priList[$task->pri]))             $task->pri          = $taskLang->priList[$task->pri];
                 if(isset($taskLang->statusList[$task->status]))       $task->status       = $this->processStatus('task', $task);
                 if(isset($taskLang->reasonList[$task->closedReason])) $task->closedReason = $taskLang->reasonList[$task->closedReason];
-                $task->module = $task->module ? $this->tree->getModulePathByID($task->module) . "(#$task->module)" : '';
+                if(isset($relatedModules[$task->module]))             $task->module       = $relatedModules[$task->module] . "(#$task->module)";
 
                 if(isset($users[$task->openedBy]))     $task->openedBy     = $users[$task->openedBy];
                 if(isset($users[$task->assignedTo]))   $task->assignedTo   = $users[$task->assignedTo];
diff --git a/module/testcase/control.php b/module/testcase/control.php
index 3f96343401..e66b214b75 100644
--- a/module/testcase/control.php
+++ b/module/testcase/control.php
@@ -1171,11 +1171,11 @@ class testcase extends control
             }
 
             /* Get related objects title or names. */
+            $relatedModules = $this->loadModel('tree')->getAllModulePairs('case');
             $relatedStories = $this->dao->select('id,title')->from(TABLE_STORY) ->where('id')->in($relatedStoryIdList)->fetchPairs();
             $relatedCases   = $this->dao->select('id, title')->from(TABLE_CASE)->where('id')->in($relatedCaseIdList)->fetchPairs();
             $relatedSteps   = $this->dao->select('id,parent,`case`,version,type,`desc`,expect')->from(TABLE_CASESTEP)->where('`case`')->in(@array_keys($cases))->orderBy('version desc,id')->fetchGroup('case', 'id');
 
-            $this->loadModel('tree');
             $cases = $this->testcase->appendData($cases);
             foreach($cases as $case)
             {
@@ -1221,8 +1221,8 @@ class testcase extends control
                 /* fill some field with useful value. */
                 $case->product = !isset($products[$case->product])     ? '' : $products[$case->product] . "(#$case->product)";
                 $case->branch  = !isset($branches[$case->branch])      ? '' : $branches[$case->branch] . "(#$case->branch)";
+                $case->module  = !isset($relatedModules[$case->module])? '' : $relatedModules[$case->module] . "(#$case->module)";
                 $case->story   = !isset($relatedStories[$case->story]) ? '' : $relatedStories[$case->story] . "(#$case->story)";
-                $case->module  = $case->module ? $this->tree->getModulePathByID($case->module) . "(#$case->module)" : '';
 
                 if(isset($caseLang->priList[$case->pri]))              $case->pri           = $caseLang->priList[$case->pri];
                 if(isset($caseLang->typeList[$case->type]))            $case->type          = $caseLang->typeList[$case->type];
diff --git a/module/tree/model.php b/module/tree/model.php
index 32359d5ba8..fb5d31ce8f 100644
--- a/module/tree/model.php
+++ b/module/tree/model.php
@@ -26,27 +26,39 @@ class treeModel extends model
     }
 
     /**
-     * Get module path by ID.
+     * Get all module pairs with path.
      *
-     * @param  int    $moduleID
      * @access public
      * @return object
      */
-    public function getModulePathByID($moduleID)
+    public function getAllModulePairs($type = 'task')
     {
-        $module  = $this->dao->findById((int)$moduleID)->from(TABLE_MODULE)->fetch();
-        if($module->parent == '0') return '/' . $module->name;
+        $modules = $this->dao->select('*')->from(TABLE_MODULE)
+            ->where('type')->eq('story')
+            ->beginIF($type == 'task')->orWhere('type')->eq('task')->fi()
+            ->beginIF($type == 'bug')->orWhere('type')->eq('bug')->fi()
+            ->beginIF($type == 'case')->orWhere('type')->eq('case')->fi()
+            ->andWhere('deleted')->eq('0')
+            ->fetchAll();
 
-        $path    = substr($module->path, 1, -1);
-        $modules =  $this->dao->select('id,name')->from(TABLE_MODULE)->where('id')->in($path)->orderBy('grade')->fetchPairs();
-
-        $modulePath = '';
-        foreach($modules as $moduleName)
+        $pairs = array();
+        foreach($modules as $module)
         {
-            $modulePath .= '/' . $moduleName; 
+            if($module->parent == '0') 
+            {
+                $pairs[$module->id] = '/' . $module->name;
+                continue;
+            }
+
+            $path           = substr($module->path, 1, -1);
+            $relatedModules = $this->dao->select('id, name')->from(TABLE_MODULE)->where('id')->in($path)->orderBy('grade')->fetchPairs();
+            $modulePath     = '';
+
+            foreach($relatedModules as $moduleName) $modulePath .= '/' . $moduleName; 
+            $pairs[$module->id] = $modulePath;
         }
-        
-        return $modulePath;
+
+        return $pairs;
     }
 
     /**