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<?php // -*-php-*-
rcs_id('$Id: BackLinkIter.php,v 1.2 2001/09/19 03:24:36 wainstead Exp $');
require_once('lib/WikiDB/backend.php');
/**
* This backlink iterator will work with any WikiDB_backend
* which has a working get_links(,'links_from') method.
*
* This is mostly here for testing, 'cause it's slow,slow,slow.
*/
class WikiDB_backend_dumb_BackLinkIter
extends WikiDB_backend_iterator
{
function WikiDB_backend_dumb_BackLinkIter(&$backend, &$all_pages, $pagename) {
$this->_pages = $all_pages;
$this->_backend = &$backend;
$this->_target = $pagename;
}
function next() {
while ($page = $this->_pages->next()) {
$pagename = $page['pagename'];
$links = $this->_backend->get_links($pagename, false);
while ($link = $links->next()) {
if ($link['pagename'] == $this->_target) {
$links->free();
return $page;
}
}
}
}
function free() {
$this->_pages->free();
}
}
// For emacs users
// Local Variables:
// mode: php
// tab-width: 8
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:
?>
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