<?php
/**
 * Content component: Guestbook
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage content
 */

/**
 * Load base class
 */
WBClass::load('WBContent');

/**
 * Content component: Guestbook
 *
 * @version 0.1.1
 * @package WB
 * @subpackage content
 */
class WBContent_Guestbook extends WBContent
{
    /**
     * my parameter list
     * @var array
     */
    protected $config = array(
            'requiredgroup' =>  '',
            'process'       =>  'list',
            'goto'          =>  '0',
            'limit'         =>  20
        );

    /**
     * table
     * @var WBDatasource_Table
     */
    protected $table;
    
   /**
    * id of current guestbook article
    * @var string
    */
    protected $id  =   '__new';

   /**
    * constructor
    *
    * Start table object
    */
    public function __construct()
    {
        parent::__construct();
        $this->table    =   WBClass::create('WBDatasource_Table');
    }

   /**
    * run
    *
    * run component
    *
    * @return array parameter list
    */
    public function run()
    {
        // display list is default        
        if (!in_array($this->config['process'], array('edit', 'add', 'rm'))) {
            $this->loadTemplates('list');                
            $this->show();
            return $this->config;
        }
        
        // load article
        $entry      =   array(array());
        $this->id   =   $this->req->get('id', '__new');
        if ($this->config['process'] == 'add') {
            $this->id   =   '__new';
        }

        // administrators may delete other's guestbook entries but not edit them
        $foreign    =   $this->user->getId();
        if ($this->config['process'] == 'rm' && $this->isUserInGroup('admin')) {
            $foreign    =   null;
        }
        
        // load entry 
        if($this->id != '__new') {
            $entry  =   $this->table->get('guestbook', $this->id, $foreign);
        }
        if (count($entry) != 1) {
            $entry      =   array(array());
            $this->id   =   '__new';
        }
        $entry  =   $entry[0];
        
        $this->tmpl->addGlobalVar('id', $this->id);
        $this->tmpl->addGlobalVars($entry);
        
        if ($this->config['process'] == 'rm' && $this->id != '__new') {
            if ($this->req->get('force', 'no') != 'yes') {                        
                $this->loadTemplates('rm');
                return $this->config;
            }
            
            $this->table->delete('guestbook', $this->id, $foreign);
            $this->loadTemplates('rmDeleted');
            return $this->config;            
        }
        
        $this->processForm('edit', $entry);
        return $this->config;
    }

    /**
     * auxilliary function to show load and display guestbook pager
     * 
     * 
     */
    protected function show()
    {
        $clause     =   array();
        $options    =   array();
        if ($this->config['limit']) {
            $options['limit']   =   $this->config['limit'];
        }

        // initialize guestbook pager
        $pager  =   $this->table->getPager($this->part . __CLASS__, 'guestbook', null, $clause, $options);
        $pinfo  =   $pager->browse($this->config['goto']);
        $list   =   $pager->get();

        $this->tmpl->addGlobalVars($pinfo, 'pager_');
        $this->tmpl->addRows('list_entry', $list);        
    }
    
   /**
    * receive output
    *
    * fetch output of this content component
    *
    * @return string
    */
    public function getString()
    {
        return $this->tmpl->getParsedTemplate( 'snippet' );
    }
    
   /**
    * Save guestbook entry
    *
    * save record in guestbook
    *
    * @param patForms $form
    * @param array $values
    */
    public function onEditValid($form, $values)
    {
        $values['uid']  =   $this->user->getId();
        $this->table->save('guestbook', $this->id, $values);
        return true;
    }    
    
   /**
    * location of form config
    *
    * Return sub directory where form element definitions are located
    *
    * @return string folder
    */
    protected function getFormConfigDir()
    {
        return 'guestbook';
    }

    
}
?>