public function fromArray($arr, $keyType = BasePeer::TYPE_PHPNAME)
 {
     $keys = UserchapterPeer::getFieldNames($keyType);
     if (array_key_exists($keys[0], $arr)) {
         $this->setId($arr[$keys[0]]);
     }
     if (array_key_exists($keys[1], $arr)) {
         $this->setUserId($arr[$keys[1]]);
     }
     if (array_key_exists($keys[2], $arr)) {
         $this->setChapterId($arr[$keys[2]]);
     }
     if (array_key_exists($keys[3], $arr)) {
         $this->setOther($arr[$keys[3]]);
     }
 }
 public static function retrieveByPKs($pks, $con = null)
 {
     if ($con === null) {
         $con = Propel::getConnection(self::DATABASE_NAME);
     }
     $objs = null;
     if (empty($pks)) {
         $objs = array();
     } else {
         $criteria = new Criteria();
         $criteria->add(UserchapterPeer::ID, $pks, Criteria::IN);
         $objs = UserchapterPeer::doSelect($criteria, $con);
     }
     return $objs;
 }