/**
 * Retrieve object using using composite pkey values.
 * @param string $migration
   @param int $batch
   
 * @param      Connection $con
 * @return     Migrations
 */
 public static function retrieveByPK($migration, $batch, $con = null)
 {
     if ($con === null) {
         $con = Propel::getConnection(self::DATABASE_NAME);
     }
     $criteria = new Criteria();
     $criteria->add(MigrationsPeer::MIGRATION, $migration);
     $criteria->add(MigrationsPeer::BATCH, $batch);
     $v = MigrationsPeer::doSelect($criteria, $con);
     return !empty($v) ? $v[0] : null;
 }
 /**
  * Populates the object using an array.
  *
  * This is particularly useful when populating an object from one of the
  * request arrays (e.g. $_POST).  This method goes through the column
  * names, checking to see whether a matching key exists in populated
  * array. If so the setByName() method is called for that column.
  *
  * You can specify the key type of the array by additionally passing one
  * of the class type constants TYPE_PHPNAME, TYPE_COLNAME, TYPE_FIELDNAME,
  * TYPE_NUM. The default key type is the column's phpname (e.g. 'authorId')
  *
  * @param      array  $arr     An array to populate the object from.
  * @param      string $keyType The type of keys the array uses.
  * @return     void
  */
 public function fromArray($arr, $keyType = BasePeer::TYPE_PHPNAME)
 {
     $keys = MigrationsPeer::getFieldNames($keyType);
     if (array_key_exists($keys[0], $arr)) {
         $this->setMigration($arr[$keys[0]]);
     }
     if (array_key_exists($keys[1], $arr)) {
         $this->setBatch($arr[$keys[1]]);
     }
 }