/**
  * Filter the query by a related \App\Models\PeriodSchoolYear object
  *
  * @param \App\Models\PeriodSchoolYear|ObjectCollection $periodSchoolYear the related object to use as filter
  * @param string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
  *
  * @return ChildSchoolYearQuery The current query, for fluid interface
  */
 public function filterByPeriodSchoolYear($periodSchoolYear, $comparison = null)
 {
     if ($periodSchoolYear instanceof \App\Models\PeriodSchoolYear) {
         return $this->addUsingAlias(SchoolYearTableMap::COL_ID, $periodSchoolYear->getSchoolYearId(), $comparison);
     } elseif ($periodSchoolYear instanceof ObjectCollection) {
         return $this->usePeriodSchoolYearQuery()->filterByPrimaryKeys($periodSchoolYear->getPrimaryKeys())->endUse();
     } else {
         throw new PropelException('filterByPeriodSchoolYear() only accepts arguments of type \\App\\Models\\PeriodSchoolYear or Collection');
     }
 }
 /**
  * Exclude object from result
  *
  * @param   ChildPeriodSchoolYear $periodSchoolYear Object to remove from the list of results
  *
  * @return $this|ChildPeriodSchoolYearQuery The current query, for fluid interface
  */
 public function prune($periodSchoolYear = null)
 {
     if ($periodSchoolYear) {
         $this->addCond('pruneCond0', $this->getAliasedColName(PeriodSchoolYearTableMap::COL_PERIOD_ID), $periodSchoolYear->getPeriodId(), Criteria::NOT_EQUAL);
         $this->addCond('pruneCond1', $this->getAliasedColName(PeriodSchoolYearTableMap::COL_SCHOOL_YEAR_ID), $periodSchoolYear->getSchoolYearId(), Criteria::NOT_EQUAL);
         $this->combine(array('pruneCond0', 'pruneCond1'), Criteria::LOGICAL_OR);
     }
     return $this;
 }
 /**
  * Adds an object to the instance pool.
  *
  * Propel keeps cached copies of objects in an instance pool when they are retrieved
  * from the database. In some cases you may need to explicitly add objects
  * to the cache in order to ensure that the same objects are always returned by find*()
  * and findPk*() calls.
  *
  * @param \App\Models\PeriodSchoolYear $obj A \App\Models\PeriodSchoolYear object.
  * @param string $key             (optional) key to use for instance map (for performance boost if key was already calculated externally).
  */
 public static function addInstanceToPool($obj, $key = null)
 {
     if (Propel::isInstancePoolingEnabled()) {
         if (null === $key) {
             $key = serialize(array((string) $obj->getPeriodId(), (string) $obj->getSchoolYearId()));
         }
         // if key === null
         self::$instances[$key] = $obj;
     }
 }