/**
	 * Retrieve a single object by pkey.
	 *
	 * @param      string $pk the primary key.
	 * @param      PropelPDO $con the connection to use
	 * @return     ResponsableEleve
	 */
	public static function retrieveByPK($pk, PropelPDO $con = null)
	{

		if (null !== ($obj = ResponsableElevePeer::getInstanceFromPool((string) $pk))) {
			return $obj;
		}

		if ($con === null) {
			$con = Propel::getConnection(ResponsableElevePeer::DATABASE_NAME, Propel::CONNECTION_READ);
		}

		$criteria = new Criteria(ResponsableElevePeer::DATABASE_NAME);
		$criteria->add(ResponsableElevePeer::PERS_ID, $pk);

		$v = ResponsableElevePeer::doSelect($criteria, $con);

		return !empty($v) > 0 ? $v[0] : null;
	}
	/**
	 * Selects a collection of JNotificationResponsableEleve objects pre-filled with all related objects except AbsenceEleveNotification.
	 *
	 * @param      Criteria  $criteria
	 * @param      PropelPDO $con
	 * @param      String    $join_behavior the type of joins to use, defaults to Criteria::LEFT_JOIN
	 * @return     array Array of JNotificationResponsableEleve objects.
	 * @throws     PropelException Any exceptions caught during processing will be
	 *		 rethrown wrapped into a PropelException.
	 */
	public static function doSelectJoinAllExceptAbsenceEleveNotification(Criteria $criteria, $con = null, $join_behavior = Criteria::LEFT_JOIN)
	{
		$criteria = clone $criteria;

		// Set the correct dbName if it has not been overridden
		// $criteria->getDbName() will return the same object if not set to another value
		// so == check is okay and faster
		if ($criteria->getDbName() == Propel::getDefaultDB()) {
			$criteria->setDbName(self::DATABASE_NAME);
		}

		JNotificationResponsableElevePeer::addSelectColumns($criteria);
		$startcol2 = JNotificationResponsableElevePeer::NUM_HYDRATE_COLUMNS;

		ResponsableElevePeer::addSelectColumns($criteria);
		$startcol3 = $startcol2 + ResponsableElevePeer::NUM_HYDRATE_COLUMNS;

		$criteria->addJoin(JNotificationResponsableElevePeer::PERS_ID, ResponsableElevePeer::PERS_ID, $join_behavior);


		$stmt = BasePeer::doSelect($criteria, $con);
		$results = array();

		while ($row = $stmt->fetch(PDO::FETCH_NUM)) {
			$key1 = JNotificationResponsableElevePeer::getPrimaryKeyHashFromRow($row, 0);
			if (null !== ($obj1 = JNotificationResponsableElevePeer::getInstanceFromPool($key1))) {
				// We no longer rehydrate the object, since this can cause data loss.
				// See http://www.propelorm.org/ticket/509
				// $obj1->hydrate($row, 0, true); // rehydrate
			} else {
				$cls = JNotificationResponsableElevePeer::getOMClass(false);

				$obj1 = new $cls();
				$obj1->hydrate($row);
				JNotificationResponsableElevePeer::addInstanceToPool($obj1, $key1);
			} // if obj1 already loaded

				// Add objects for joined ResponsableEleve rows

				$key2 = ResponsableElevePeer::getPrimaryKeyHashFromRow($row, $startcol2);
				if ($key2 !== null) {
					$obj2 = ResponsableElevePeer::getInstanceFromPool($key2);
					if (!$obj2) {
	
						$cls = ResponsableElevePeer::getOMClass(false);

					$obj2 = new $cls();
					$obj2->hydrate($row, $startcol2);
					ResponsableElevePeer::addInstanceToPool($obj2, $key2);
				} // if $obj2 already loaded

				// Add the $obj1 (JNotificationResponsableEleve) to the collection in $obj2 (ResponsableEleve)
				$obj2->addJNotificationResponsableEleve($obj1);

			} // if joined row is not null

			$results[] = $obj1;
		}
		$stmt->closeCursor();
		return $results;
	}
	/**
	 * Find object by primary key.
	 * Propel uses the instance pool to skip the database if the object exists.
	 * Go fast if the query is untouched.
	 *
	 * <code>
	 * $obj  = $c->findPk(12, $con);
	 * </code>
	 *
	 * @param     mixed $key Primary key to use for the query
	 * @param     PropelPDO $con an optional connection object
	 *
	 * @return    ResponsableEleve|array|mixed the result, formatted by the current formatter
	 */
	public function findPk($key, $con = null)
	{
		if ($key === null) {
			return null;
		}
		if ((null !== ($obj = ResponsableElevePeer::getInstanceFromPool((string) $key))) && !$this->formatter) {
			// the object is alredy in the instance pool
			return $obj;
		}
		if ($con === null) {
			$con = Propel::getConnection(ResponsableElevePeer::DATABASE_NAME, Propel::CONNECTION_READ);
		}
		$this->basePreSelect($con);
		if ($this->formatter || $this->modelAlias || $this->with || $this->select
		 || $this->selectColumns || $this->asColumns || $this->selectModifiers
		 || $this->map || $this->having || $this->joins) {
			return $this->findPkComplex($key, $con);
		} else {
			return $this->findPkSimple($key, $con);
		}
	}