Create new class SubtaskTaskConversionModel

app/Model/SubtaskModel.php

@@ -368,31 +368,4 @@ class SubtaskModel extends Base
             }
         });
     }
-
-    /**
-     * Convert a subtask to a task
-     *
-     * @access public
-     * @param  integer $project_id
-     * @param  integer $subtask_id
-     * @return integer
-     */
-    public function convertToTask($project_id, $subtask_id)
-    {
-        $subtask = $this->getById($subtask_id);
-
-        $task_id = $this->taskCreationModel->create(array(
-            'project_id' => $project_id,
-            'title' => $subtask['title'],
-            'time_estimated' => $subtask['time_estimated'],
-            'time_spent' => $subtask['time_spent'],
-            'owner_id' => $subtask['user_id'],
-        ));
-
-        if ($task_id !== false) {
-            $this->remove($subtask_id);
-        }
-
-        return $task_id;
-    }
 }