* Finish task #5104.

module/task/control.php

@@ -341,6 +341,7 @@ class task extends control
         $this->view->position[] = $this->lang->task->common;
         $this->view->position[] = $this->lang->task->edit;
         $this->view->stories    = $this->story->getProjectStoryPairs($this->view->project->id);
+        $this->view->tasks      = $this->task->getParentTaskPairs($this->view->project->id);
         $this->view->users      = $this->loadModel('user')->getPairs('nodeleted', "{$this->view->task->openedBy},{$this->view->task->canceledBy},{$this->view->task->closedBy}");
         $this->view->modules    = $this->tree->getTaskOptionMenu($this->view->task->project);
         $this->display();

module/task/model.php

@@ -683,6 +683,7 @@ class taskModel extends model
         {
             if($task->status == 'done')   $this->loadModel('score')->create('task', 'finish', $taskID);
             if($task->status == 'closed') $this->loadModel('score')->create('task', 'close', $taskID);
+            if($task->parent) $this->dao->update(TABLE_TASK)->set('parent')->eq(-1)->where('id')->eq($task->parent)->exec();
             $this->file->updateObjectID($this->post->uid, $taskID, 'task');
             return common::createChanges($oldTask, $task);
         }
@@ -1598,6 +1599,25 @@ class taskModel extends model
         return $tasks;
     }
 
+    /**
+     * Get project parent tasks pairs.
+     *
+     * @param  int    $projectID
+     * @access public
+     * @return array
+     */
+    public function getParentTaskPairs($projectID)
+    {
+        $tasks = $this->dao->select('id, name')->from(TABLE_TASK)
+            ->where('deleted')->eq(0)
+            ->andWhere('parent')->le(0)
+            ->andWhere('status')->notin('cancel,closed')
+            ->andWhere('project')->eq($projectID)
+            ->fetchPairs();
+
+        return array('' => '') + $tasks ;
+    }
+
     /**
      * Get tasks of a user.
      *

module/task/view/edit.html.php

@@ -103,6 +103,12 @@
                 <td><span id="storyIdBox"><?php echo html::select('story', $stories, $task->story, "class='form-control chosen'");?></span></td>
               </tr>
               <?php endif;?>
+              <?php if($task->parent == 0):?>
+              <tr>
+                <th><?php echo $lang->task->parent;?></th>
+                <td><?php echo html::select('parent', $tasks, $task->parent, "class='form-control chosen'");?></td>
+              </tr>
+              <?php endif;?>
               <tr>
                 <th><?php echo $lang->task->assignedTo;?></th>
                 <td><span id="assignedToIdBox"><?php echo html::select('assignedTo', $members, $task->assignedTo, "class='form-control chosen'");?></span></td>