<?php rcs_id('$Id: SQL.php,v 1.1 2001-09-18 19:16:23 dairiki Exp $');

require_once('lib/WikiDB.php');


/**
 *
 */
class WikiDB_SQL extends WikiDB
{
    function WikiDB_SQL ($dbparams) {
        $backend_type = 'PearDB';
        if (preg_match('/^(\w+):/', $dbparams['dsn'], $m))
            $backend_type = $m[1];
        include_once("lib/WikiDB/backend/$backend_type.php");
        $backend_class = "WikiDB_backend_$backend_type";
        $backend = new $backend_class($dbparams);

        $this->WikiDB($backend, $dbparams);
    }
    
    
    /**
     * Determine whether page exists (in non-default form).
     * @see WikiDB::isWikiPage
     */
    function isWikiPage ($pagename) {
        /*
        if (empty($this->_iwpcache))
            $this->_iwpcache = array_flip($this->_backend->get_all_pagenames());
        return isset($this->_iwpcache[$pagename]);
        */

        if (!isset($this->_iwpcache[$pagename]))
            $this->_iwpcache[$pagename] = $this->_backend->is_wiki_page($pagename);
        return $this->_iwpcache[$pagename];
        
        // Talk to the backend directly for max speed.
        /*
        $pagedata = $this->_cache->get_pagedata($pagename);
        return !empty($pagedata[':non_default']);
        */
    }
};

  
// Local Variables:
// mode: php
// End:
?>