MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / TitleArrayFromResult.php

diff --git a/includes/TitleArrayFromResult.php b/includes/TitleArrayFromResult.php
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+<?php
+/**
+ * Class to walk into a list of Title objects.
+ *
+ * Note: this entire file is a byte-for-byte copy of UserArrayFromResult.php
+ * with s/User/Title/.  If anyone can figure out how to do this nicely
+ * with inheritance or something, please do so.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+use Wikimedia\Rdbms\ResultWrapper;
+
+class TitleArrayFromResult extends TitleArray implements Countable {
+       /** @var ResultWrapper */
+       public $res;
+
+       public $key;
+
+       public $current;
+
+       function __construct( $res ) {
+               $this->res = $res;
+               $this->key = 0;
+               $this->setCurrent( $this->res->current() );
+       }
+
+       /**
+        * @param bool|ResultWrapper $row
+        * @return void
+        */
+       protected function setCurrent( $row ) {
+               if ( $row === false ) {
+                       $this->current = false;
+               } else {
+                       $this->current = Title::newFromRow( $row );
+               }
+       }
+
+       /**
+        * @return int
+        */
+       public function count() {
+               return $this->res->numRows();
+       }
+
+       function current() {
+               return $this->current;
+       }
+
+       function key() {
+               return $this->key;
+       }
+
+       function next() {
+               $row = $this->res->next();
+               $this->setCurrent( $row );
+               $this->key++;
+       }
+
+       function rewind() {
+               $this->res->rewind();
+               $this->key = 0;
+               $this->setCurrent( $this->res->current() );
+       }
+
+       /**
+        * @return bool
+        */
+       function valid() {
+               return $this->current !== false;
+       }
+}