includes/TitleArray.php

   1 <?php
   2 /**
   3  * Class to walk into a list of Title objects.
   4  *
   5  * Note: this entire file is a byte-for-byte copy of UserArray.php with
   6  * s/User/Title/.  If anyone can figure out how to do this nicely with
   7  * inheritance or something, please do so.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 /**
  28  * The TitleArray class only exists to provide the newFromResult method at pre-
  29  * sent.
  30  */
  31 abstract class TitleArray implements Iterator {
  32         /**
  33          * @param ResultWrapper $res A SQL result including at least page_namespace and
  34          *   page_title -- also can have page_id, page_len, page_is_redirect,
  35          *   page_latest (if those will be used).  See Title::newFromRow.
  36          * @return TitleArrayFromResult
  37          */
  38         static function newFromResult( $res ) {
  39                 $array = null;
  40                 if ( !wfRunHooks( 'TitleArrayFromResult', array( &$array, $res ) ) ) {
  41                         return null;
  42                 }
  43                 if ( $array === null ) {
  44                         $array = self::newFromResult_internal( $res );
  45                 }
  46                 return $array;
  47         }
  48
  49         /**
  50          * @param ResultWrapper $res
  51          * @return TitleArrayFromResult
  52          */
  53         protected static function newFromResult_internal( $res ) {
  54                 $array = new TitleArrayFromResult( $res );
  55                 return $array;
  56         }
  57 }