<?php
/**
 * Datasource renderer CSV
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage db
 */

WBClass::load('WBDatasource_Renderer');

/**
 * Datasource renderer CSV 
 *
 * @version 0.1.0
 * @package WB
 * @subpackage db
 */
class WBDatasource_Renderer_HTML extends WBDatasource_Renderer
{
    /**
     * template engine
     * @var patTemplate
     */
    protected $tmpl;
    
    /**
     * simple meta data
     * @var array
     */
    protected $meta =   array(
                                'count'         =>  0,
                                'datasource'    =>  ''  
                                );
    protected $list =   array();
    
    /**
     * start rendering
     * 
     * @param string $ds datasource name
     */
    public function start($ds)
    {
        $this->list =   array();
        $this->meta['datasource']   =   $ds;
        $this->meta['count']        =   0;
        
        $this->tmpl     =   WBClass::create('patTemplate');
        
        // allow to transport placeholder to surrounding templates
        $this->tmpl->setDefaultAttribute('unusedvars', 'ignore');
                
        // add user data
        WBClass::load('WBUser');
        $user   =   WBUser::getCurrent();
        if ($user->isAuthenticated()) {
            $this->tmpl->addGlobalVars($user->getData(), 'user_current_');
        }        
        
        // load template
        $this->tmpl->readTemplatesFromInput(sprintf('Datasource/%s.tmpl', $ds));
    }

    /**
     * render single item
     *
     * The consumer for data source iteratrion
     * @param array $item
     */
    public function renderItem($item)
    {
        $this->list[]   =   $item;
    }
    
    /**
     * end of iteration
     * 
     */
    public function end()
    {
        $this->meta['count']    =   count($this->list);
        $this->tmpl->addRows('list_entry', $this->list);        
        $this->tmpl->addGlobalVars($this->meta);
        $this->list =   array();
    }
    
    /**
     * get actual html
     * 
     * @return WBFile
     */
    public function getHtml()
    {
        return $this->tmpl->getParsedTemplate('snippet');
    }
}
?>