class.ilExcCriteriaFile.php

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<?php

/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once "Modules/Exercise/classes/class.ilExcCriteria.php";

class ilExcCriteriaFile extends ilExcCriteria
{
        public function getType()
        {
                return "file";
        }
                
        protected function initStorage()
        {
                include_once("./Modules/Exercise/classes/class.ilFSStorageExercise.php");
                $storage = new ilFSStorageExercise($this->ass->getExerciseId(), $this->ass->getId());
                return $storage->getPeerReviewUploadPath($this->peer_id, $this->giver_id, $this->getId());                                      
        }
        
        public function getFiles()
        {
                $path = $this->initStorage();
                return (array)glob($path."*.*");
        }
                
        public function resetReview()
        {               
                include_once("./Modules/Exercise/classes/class.ilFSStorageExercise.php");
                $storage = new ilFSStorageExercise($this->ass->getExerciseId(), $this->ass->getId());
                $storage->deleteDirectory($storage->getPeerReviewUploadPath($this->peer_id, $this->giver_id, $this->getId()));                          
        }
        
        
        // PEER REVIEW
        
        public function addToPeerReviewForm($a_value = null)
        {                               
                $existing = array();
                foreach($this->getFiles() as $file)
                {
                        $existing[] = basename($file);
                }
                
                $files = new ilFileInputGUI($this->getTitle(), "prccc_file_".$this->getId());
                $files->setInfo($this->getDescription());
                $files->setRequired($this->isRequired());
                $files->setValue(implode("<br />", $existing));
                $files->setALlowDeletion(true);
                $this->form->addItem($files);
        }
        
        public function importFromPeerReviewForm()
        {
                $path = $this->initStorage();           
                
                if($this->form->getItemByPostVar("prccc_file_".$this->getId())->getDeletionFlag())
                {
                        ilUtil::delDir($path);
                        $this->form->getItemByPostVar("prccc_file_".$this->getId())->setValue(null);
                }
                
                $incoming = $_FILES["prccc_file_".$this->getId()];
                if($incoming["tmp_name"])
                {                               
                        $org_name = basename($incoming["name"]);
                        
                        ilUtil::moveUploadedFile($incoming["tmp_name"],
                                $org_name,
                                $path.$org_name,
                                false);
                }               
        }
        
        public function hasValue($a_value)
        {
                return (bool)sizeof($this->getFiles());
        }
                
        public function validate($a_value)
        {
                global $lng;
                
                // because of deletion flag we have to also check ourselves
                if($this->isRequired())
                {                       
                        if(!$this->hasValue($a_value))
                        {
                                if($this->form)
                                {
                                        $this->form->getItemByPostVar("prccc_file_".$this->getId())->setAlert($lng->txt("msg_input_is_required"));
                                }
                                return false;
                        }
                }
                return true;
        }       
        
        public function getFileByHash()
        {
                $hash = trim($_GET["fuf"]);
                if($hash)
                {
                        foreach($this->getFiles() as $file)
                        {                                                                                                                                                       
                                if(md5($file) == $hash)
                                {                                       
                                        return $file;
                                }
                        }       
                }
        }
        
        public function getHTML($a_value)
        {               
                global $ilCtrl;
                
                $crit_id = $this->getId()
                        ? $this->getId()
                        : "file";               
                $ilCtrl->setParameterByClass("ilExPeerReviewGUI", "fu", $this->giver_id."__".$this->peer_id."__".$crit_id);
                
                $files = array();
                foreach($this->getFiles() as $file)
                {
                        $ilCtrl->setParameterByClass("ilExPeerReviewGUI", "fuf", md5($file));
                        $dl = $ilCtrl->getLinkTargetByClass("ilExPeerReviewGUI", "downloadPeerReview");
                        $ilCtrl->setParameterByClass("ilExPeerReviewGUI", "fuf", "");
                        
                        $files[] = '<a href="'.$dl.'">'.basename($file).'</a>';                 
                }
                
                $ilCtrl->setParameterByClass("ilExPeerReviewGUI", "fu", "");
                
                return implode("<br />", $files);
        }
}