/** * Filter the query by a related \App\Models\Student object * * @param \App\Models\Student|ObjectCollection $student the related object to use as filter * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL * * @return ChildCourseQuery The current query, for fluid interface */ public function filterByStudent($student, $comparison = null) { if ($student instanceof \App\Models\Student) { return $this->addUsingAlias(CourseTableMap::COL_ID, $student->getCourseId(), $comparison); } elseif ($student instanceof ObjectCollection) { return $this->useStudentQuery()->filterByPrimaryKeys($student->getPrimaryKeys())->endUse(); } else { throw new PropelException('filterByStudent() only accepts arguments of type \\App\\Models\\Student or Collection'); } }