chamilo / chamilo-lms

		}

	}

	function delete_linked_data()

	{

		$ref_id = $this->get_ref_id();

		if (!empty($ref_id)) {

			//Cleans forum

			$sql = 'UPDATE '.$this->get_forum_thread_table().' SET

			        thread_qualify_max = 0,

			        thread_weight = 0,

			        thread_title_qualify = ""

                    WHERE c_id = '.$this->course_id.' AND thread_id= '.$ref_id;

			Database::query($sql);

		}

	}

}

		}

	}

	public function delete_linked_data()

	{

        $data = $this->get_exercise_data();

        if (empty($data)) {

            return '';

        }

        if (!empty($id)) {

			//Cleans works

            $sql = 'UPDATE '.$this->get_studpub_table().' 

                    SET weight=0

                    WHERE c_id = '.$this->course_id.' AND id ='.$id;

			Database::query($sql);

		}

	}

}