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   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  }