<?php
/**
 * patTemplate-function to display banner items
 *
 * @package Wombat
 * @subpackage patTemplate
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */

/**
 * patTemplate-function to display banner items
 *
 *  
 * @version 0.3.0
 * @package Wombat
 * @subpackage patTemplate
 */
class patTemplate_Function_Banner extends patTemplate_Function
{
    const TABLE_BANNER  =   'banner';
    const TABLE_TEASER  =   'teaser';

    /**
     * Name of the Function
     * @var string
     */
    public $_name  =   'Banner';

    /**
     * Tell that this function has to be executed during runtime
     * @var string
     */
    public $_type = PATTEMPLATE_FUNCTION_RUNTIME;
    
    /**
     * Template Engine
     * @var patTemplate
     */
    private $tmpl;

    /**
     * Table Datasource
     * @var WBDatasource_Table
     */
    private $table;
    
    /**
     * Call the function
     *
     * @access public
     * @param array $params parameters of the function (= attributes of the tag)
     * @param string $content inside tag
     * @return string content to insert into the template
     */
    public function call($params, $content)
    {
        $table  =   self::TABLE_TEASER;
        if ('Teaser' != $this->_name) {
            $table  =   self::TABLE_BANNER;
        }
        $paramsDef  =   array(
                                'tmpl'      =>  'default',
                                'class'     =>  '',
                                'namespace' =>  '',
                                'id'        =>  '',
                                'limit'     =>  -1,
                                'offset'    =>  -1
                            );
        $params         =   array_merge($paramsDef, $params);
        if (empty($params['id'])) {
            $params['id']   =   sprintf('wb-%s-%s', strtolower($this->_name), substr(md5(rand()), -8));
        }

        $this->tmpl =   WBClass::create('patTemplate');
        $this->tmpl->addGlobalVars($params, 'param_');
        $this->tmpl->readTemplatesFromInput(sprintf('%s/%s.tmpl', $this->_name, $params['tmpl']));

        $this->table    =   WBClass::create('WBDatasource_Table');
        $option     =   array();
        if (0 < $params['limit']) {
            $option['limit']    =   $params['limit'];
        }
        if (0 < $params['offset']) {
            $option['offset']   =   $params['offset'];
        }
        $clause     =   array();
        $clause[]   =   array(
                                'field' =>  'enabled',
                                'value' =>  1
                            );

        if (!empty($params['namespace'])) {
            $clause[]   =   array(
                                'field' =>  'namespace',
                                'value' =>  $params['namespace']
                            );
        }

        $list   =   $this->table->get($table, null, null, $clause, $option);
        $this->tmpl->addGlobalVar('list_count', count($list));
        if ($this->tmpl->exists('list_entry')) {
            $this->tmpl->addRows('list_entry', $list);
            $max    =   WBParam::get('wb/template/listtemplatemax', 10);
            for ($i = 1; $i < $max; ++$i) {
                if (!$this->tmpl->exists('list_entry_' . $i)) {
                    break;
                }
                $this->tmpl->addRows('list_entry_' . $i, $list);
            }
        }
        return $this->tmpl->getParsedTemplate('snippet');
    }
}