public static function ExtractCourseStatus($data, $singleResult = false, $UserExtension = '', $CourseStatusExtension = '', $CourseExtension = '', $isResult = true)
{
// generates an assoc array of a user by using a defined list of its
// attributes
$user = DBJson::getObjectsByAttributes($data, User::getDBPrimaryKey(), User::getDBConvert(), $UserExtension);
// generates an assoc array of course stats by using a defined list of
// its attributes
$courseStatus = DBJson::getObjectsByAttributes($data, CourseStatus::getDBPrimaryKey(), CourseStatus::getDBConvert(), $CourseStatusExtension);
// generates an assoc array of courses by using a defined list of
// its attributes
$courses = DBJson::getObjectsByAttributes($data, Course::getDBPrimaryKey(), Course::getDBConvert(), $CourseExtension);
// concatenates the course stats and the associated courses
$res = DBJson::concatObjectListsSingleResult($data, $courseStatus, CourseStatus::getDBPrimaryKey(), CourseStatus::getDBConvert()['CS_course'], $courses, Course::getDBPrimaryKey(), $CourseExtension, $CourseStatusExtension);
// concatenates the users and the associated course stats
$res = DBJson::concatResultObjectLists($data, $user, User::getDBPrimaryKey(), User::getDBConvert()['U_courses'], $res, CourseStatus::getDBPrimaryKey(), $CourseStatusExtension, $UserExtension);
if ($isResult) {
// to reindex
// $res = array_merge($res);
$res = CourseStatus::decodeCourseStatus($res, false);
if ($singleResult == true) {
// only one object as result
if (count($res) > 0) {
$res = $res[0];
}
}
}
return $res;
}
