includes/user/UserArrayFromResult.php

   1 <?php
   2 /**
   3  * Class to walk into a list of User objects.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 class UserArrayFromResult extends UserArray implements Countable {
  24         /** @var ResultWrapper */
  25         public $res;
  26
  27         /** @var int */
  28         public $key;
  29
  30         /** @var bool|stdClass */
  31         public $current;
  32
  33         /**
  34          * @param ResultWrapper $res
  35          */
  36         function __construct( $res ) {
  37                 $this->res = $res;
  38                 $this->key = 0;
  39                 $this->setCurrent( $this->res->current() );
  40         }
  41
  42         /**
  43          * @param bool|stdClass $row
  44          * @return void
  45          */
  46         protected function setCurrent( $row ) {
  47                 if ( $row === false ) {
  48                         $this->current = false;
  49                 } else {
  50                         $this->current = User::newFromRow( $row );
  51                 }
  52         }
  53
  54         /**
  55          * @return int
  56          */
  57         public function count() {
  58                 return $this->res->numRows();
  59         }
  60
  61         /**
  62          * @return User
  63          */
  64         function current() {
  65                 return $this->current;
  66         }
  67
  68         function key() {
  69                 return $this->key;
  70         }
  71
  72         function next() {
  73                 $row = $this->res->next();
  74                 $this->setCurrent( $row );
  75                 $this->key++;
  76         }
  77
  78         function rewind() {
  79                 $this->res->rewind();
  80                 $this->key = 0;
  81                 $this->setCurrent( $this->res->current() );
  82         }
  83
  84         /**
  85          * @return bool
  86          */
  87         function valid() {
  88                 return $this->current !== false;
  89         }
  90 }