'; print_r($list);
	return $list;
}


function get_all_exercise_event_from_lp($exercise_id, $course_code, $session_id = 0) {
    $TABLETRACK_EXERCICES = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
    $TBL_TRACK_ATTEMPT = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
    $course_code = Database::escape_string($course_code);
    $exercise_id = intval($exercise_id);
    $session_id = intval($session_id);
    
  
    $sql = "SELECT * FROM $TABLETRACK_EXERCICES WHERE status = ''  AND exe_cours_id = '$course_code' AND exe_exo_id = '$exercise_id' AND session_id = $session_id AND orig_lp_id !=0 AND orig_lp_item_id != 0";
    
    $res = api_sql_query($sql,__FILE__,__LINE__);
    $list = array();    
    while($row = Database::fetch_array($res,'ASSOC')) {     
        $list[$row['exe_id']] = $row;       
        $sql = "SELECT * FROM $TBL_TRACK_ATTEMPT WHERE exe_id = {$row['exe_id']}";
        $res_question = api_sql_query($sql,__FILE__,__LINE__);
        while($row_q = Database::fetch_array($res_question,'ASSOC')) {
            $list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
        }       
    }
    return $list;
}
/*
function get_all_exercise_event_from_lp($exercise_id, $course_db, $session_id ) {
	$lp_item_table = Database  :: get_course_table(TABLE_LP_ITEM,$course_db);
	$lp_item_view_table = Database  :: get_course_table(TABLE_LP_ITEM_VIEW,$course_db);
	$lp_view_table = Database  :: get_course_table(TABLE_LP_VIEW,$course_db);
	
	$exercise_id 	= intval($exercise_id);
	$session_id 	= intval($session_id);
	
	$sql = "SELECT  title, user_id, score , iv.max_score, status, session_id 
			FROM $lp_item_table as i INNER JOIN $lp_item_view_table iv ON (i.id = iv.lp_item_id ) INNER JOIN $lp_view_table v ON iv.lp_view_id = v.id 
			WHERE path = $exercise_id AND status ='completed' AND session_id = $session_id";
	$res = api_sql_query($sql,__FILE__,__LINE__);
	$list = array();	
	
	while($row = Database::fetch_array($res,'ASSOC')) {		
		$list[$row['exe_id']]['question_list'][$row['question_id']] = $row;				
	}
	//echo '
'; print_r($list);
	return $list;
}*/



function get_all_exercises_from_lp($lp_id, $course_db) {
	$lp_item_table = Database  :: get_course_table(TABLE_LP_ITEM,$course_db);
	$lp_id = intval($lp_id);
	$sql = "SELECT * FROM $lp_item_table WHERE lp_id = '".$lp_id."'  ORDER BY parent_item_id, display_order";
	$res = api_sql_query($sql, __FILE__, __LINE__);
	$my_exercise_list = array();	
	while($row = Database::fetch_array($res,'ASSOC')) {
		if ($row['item_type'] == 'quiz') {
			$my_exercise_list[] = $row;
		}		
	}
	return $my_exercise_list; 
}


/**
 * This function gets the comments of an exercise
 *
 * @param int $id
 * @param int $question_id
 * @return str the comment
 */
function get_comments($id,$question_id)
{
    $TBL_TRACK_ATTEMPT = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
    $sql = "SELECT teacher_comment FROM ".$TBL_TRACK_ATTEMPT." where exe_id='".Database::escape_string($id)."' and question_id = '".Database::escape_string($question_id)."' ORDER by question_id";
    $sqlres = Database::query($sql);
    $comm = Database::result($sqlres,0,"teacher_comment");
    return $comm;
}