File controllers/streams_controller.php | BEdita API doc

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<?php
/*-----8<--------------------------------------------------------------------
 * 
 * BEdita - a semantic content management framework
 * 
 * Copyright 2008 ChannelWeb Srl, Chialab Srl
 * 
 * This file is part of BEdita: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published 
 * by the Free Software Foundation, either version 3 of the License, or 
 * (at your option) any later version.
 * BEdita is distributed WITHOUT ANY WARRANTY; without even the implied 
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License 
 * version 3 along with BEdita (see LICENSE.LGPL).
 * If not, see <http://gnu.org/licenses/lgpl-3.0.html>.
 * 
 *------------------------------------------------------------------->8-----
 */

/**
 * 
 *
 * @version         $Revision$
 * @modifiedby      $LastChangedBy$
 * @lastmodified    $LastChangedDate$
 * 
 * $Id$
 */
class StreamsController extends AppController {
    
    var $components = array('BeTree','BeFileHandler', 'BeSecurity');
    var $uses = array('BEObject', 'Stream');
    var $helpers    = array('BeTree', 'BeToolbar');
    
    /**
     * get all or not related streams to an object 
     *
     * @param int $obj_id, if it's null get all streams else exclude related streams to $obj_id
     */
    public function showStreams($obj_id=null, $text=null, $page = 1, $dim = 20) {
        $conf = Configure::getInstance();
        $ot  = array($conf->objectTypes['image']["id"],
                    $conf->objectTypes['audio']["id"],
                    $conf->objectTypes['video']["id"],
                    $conf->objectTypes['b_e_file']["id"],
                    $conf->objectTypes['application']["id"]
                );
        
        $relations_id = array();
        if (!empty($obj_id)) {
            $relations_id = $this->getRelatedStreamIDs($obj_id);
        }
        
        $filter["object_type_id"] = $ot;
        $filter["mediatype"] = true;
        if (!empty($text)) {
            $text = urldecode($text);
            $filter["query"] = $text;
        }
        
        $bedita_items = $this->BEObject->findObjects(null, null, null, $filter, $order=null, $dir=true, $page, $dim, false, $relations_id)  ;

        foreach($bedita_items['items'] as $key => $value) {
            $modelLoaded = $this->loadModelByObjectTypeId($value['object_type_id']);
            
            $modelLoaded->containLevel("minimum");

            if(($details = $modelLoaded->findById($value['id']))) {
                $details['filename'] = substr($details['uri'],strripos($details['uri'],"/")+1);
                $bedita_items['items'][$key] = array_merge($bedita_items['items'][$key], $details); 
            }
        }
        
        $this->layout = "ajax";
        $this->set("bedita_items",$bedita_items['items']);
        $this->set('toolbar',       $bedita_items['toolbar']);
        $this->set("object_id", $obj_id);
        $this->set("streamSearched", $text);
    }
    
        
    /* Called by Ajax.
     * Show multimedia object in the form page
     * @param string $filename  File to show in the form page
     */
    public function get_item_form($filename = null) {
        $filename = urldecode($this->params['form']['filename']) ;
        if(!($id = $this->Stream->getIdFromFilename($filename))) throw new BeditaException(sprintf(__("Error getting id object: %d", true), $id));
        $this->_get_item_form($id) ;
    }
     
    /**
     * Called by Ajax.
     * Show multimedia object in the form page
     * @param integer $id   Id dell'oggetto da linkare
     */
    public function get_item_form_by_id($id =null) {
        $this->_get_item_form($this->params['form']['id']);
        if (!empty($this->params['form']['relation'])) {
            $this->set("relation", $this->params['form']['relation']);
        }
        if (!empty($this->params['form']['template'])) {
            $this->render($this->params['form']['template']);
        }
    }
    
    private function _get_item_form($id) {
        $conf  = Configure::getInstance() ;
        foreach ($this->params['form'] as $k =>$v) {
            $$k = $v ;
        }
        $rec = $this->BEObject->recursive ;
        $this->BEObject->recursive = -1 ;
        if(!($ret = $this->BEObject->read('object_type_id', $id))) 
            throw new BeditaException(sprintf(__("Error getting object: %d", true), $id));
        $this->BEObject->recursive = $rec ;
        $modelClass = $conf->objectTypes[$ret["BEObject"]["object_type_id"]]["model"];

        $model = $this->loadModelByType($modelClass);
        $model->containLevel("minimum");
        if(!($obj = $model->findById($id))) {
             throw new BeditaException(sprintf(__("Error loading object: %d", true), $id));
        }
        
        $imagePath  = $this->BeFileHandler->path($id) ;
        $imageURL   = $this->BeFileHandler->url($id) ;
        // data for template
        $this->set('item',  $obj);
        $this->set('imagePath', $imagePath);
        $this->set('imageUrl',  $imageURL);
        $this->layout = "ajax" ;
    }
    
    /**
     * get related streams to an object and return an array of ids
     *
     * @param int $obj_id
     * @param array $ot object types
     * @return array of related streams to $obj_id
     */
    private function getRelatedStreamIDs($obj_id, $ot=null) {
        $conf = Configure::getInstance();
        $relations_id = array();
        $object_type_id = $this->BEObject->findObjectTypeId($obj_id);
        
        $modelLoaded = $this->loadModelByObjectTypeId($object_type_id);
        $objRel = $modelLoaded->find("first",array(
                                                "contain" => array("BEObject" => "RelatedObject"),
                                                "conditions" => array("BEObject.id" => $obj_id)
                                            )
                                        );
        if (!empty($objRel["RelatedObject"])) {
            foreach ($objRel["RelatedObject"] as $rel) {
                $relations_id[] = $rel["object_id"];
            }
        }
        
        return $relations_id;
    }
    
    
}
?>

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