class.ilBlogExerciseGUI.php

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<?php
 
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
 
include_once "Modules/Exercise/classes/class.ilExAssignment.php";
include_once "Modules/Exercise/classes/class.ilExSubmission.php";
 
class ilBlogExerciseGUI
{
    protected $ctrl;
 
    protected $user;
 
    protected $lng;
 
    protected $node_id; // [int]
    protected $ass_id; // [int]
    protected $file; // [string]
    
    public function __construct($a_node_id)
    {
        global $DIC;
 
        $this->ctrl = $DIC->ctrl();
        $this->user = $DIC->user();
        $this->lng = $DIC->language();
        $this->node_id = $a_node_id;
        $this->ass_id = (int) $_GET["ass"];
        $this->file = trim(ilUtil::stripSlashes($_GET["file"]));
    }
    
    public function executeCommand()
    {
        $ilCtrl = $this->ctrl;
        
        if (!$this->ass_id) {
            $this->ctrl->returnToParent($this);
        }
        
        $next_class = $ilCtrl->getNextClass($this);
        $cmd = $ilCtrl->getCmd();
    
        switch ($next_class) {
            default:
                $this->$cmd();
                break;
        }
        
        return true;
    }
    
    public static function checkExercise($a_node_id)
    {
        global $DIC;
 
        $tree = $DIC->repositoryTree();
        $ilUser = $DIC->user();
    
        $exercises = ilExSubmission::findUserFiles($ilUser->getId(), $a_node_id);
        // #0022794
        if (!$exercises) {
            $exercises = ilExSubmission::findUserFiles($ilUser->getId(), $a_node_id . ".sec");
        }
        if ($exercises) {
            $info = array();
            foreach ($exercises as $exercise) {
                // #9988
                $active_ref = false;
                foreach (ilObject::_getAllReferences($exercise["obj_id"]) as $ref_id) {
                    if (!$tree->isSaved($ref_id)) {
                        $active_ref = true;
                        break;
                    }
                }
                if ($active_ref) {
                    $part = self::getExerciseInfo($exercise["ass_id"]);
                    if ($part) {
                        $info[] = $part;
                    }
                }
            }
            if (sizeof($info)) {
                return implode("<br />", $info);
            }
        }
    }
 
    protected static function getExerciseInfo($a_assignment_id)
    {
        global $DIC;
 
        $lng = $DIC->language();
        $ilCtrl = $DIC->ctrl();
        $ilUser = $DIC->user();
        $ass = new ilExAssignment($a_assignment_id);
        $exercise_id = $ass->getExerciseId();
        if (!$exercise_id) {
            return;
        }
        
        // is the assignment still open?
        $times_up = $ass->afterDeadlineStrict();
        
        // exercise goto
        include_once "./Services/Link/classes/class.ilLink.php";
        $exc_ref_id = array_shift(ilObject::_getAllReferences($exercise_id));
        $exc_link = ilLink::_getStaticLink($exc_ref_id, "exc");
        
        $info = sprintf(
            $lng->txt("blog_exercise_info"),
            $ass->getTitle(),
            "<a href=\"" . $exc_link . "\">" .
            ilObject::_lookupTitle($exercise_id) . "</a>"
        );
        
        // submit button
        if (!$times_up) {
            $ilCtrl->setParameterByClass("ilblogexercisegui", "ass", $a_assignment_id);
            $submit_link = $ilCtrl->getLinkTargetByClass("ilblogexercisegui", "finalize");
            $ilCtrl->setParameterByClass("ilblogexercisegui", "ass", "");
            
            include_once "Services/UIComponent/Button/classes/class.ilLinkButton.php";
            $button = ilLinkButton::getInstance();
            $button->setCaption("blog_finalize_blog");
            $button->setPrimary(true);
            $button->setUrl($submit_link);
            $info .= " " . $button->render();
        }
        
        // submitted files
        include_once "Modules/Exercise/classes/class.ilExSubmission.php";
        $submission = new ilExSubmission($ass, $ilUser->getId());
        if ($submission->hasSubmitted()) {
            // #16888
            $submitted = $submission->getSelectedObject();
            
            $ilCtrl->setParameterByClass("ilblogexercisegui", "ass", $a_assignment_id);
            $dl_link = $ilCtrl->getLinkTargetByClass("ilblogexercisegui", "downloadExcSubFile");
            $ilCtrl->setParameterByClass("ilblogexercisegui", "ass", "");
            
            $rel = ilDatePresentation::useRelativeDates();
            ilDatePresentation::setUseRelativeDates(false);
            
            include_once "Services/UIComponent/Button/classes/class.ilLinkButton.php";
            $button = ilLinkButton::getInstance();
            $button->setCaption("download");
            $button->setUrl($dl_link);
            
            $info .= "<br />" . sprintf(
                $lng->txt("blog_exercise_submitted_info"),
                ilDatePresentation::formatDate(new ilDateTime($submitted["ts"], IL_CAL_DATETIME)),
                $button->render()
            );
            
            ilDatePresentation::setUseRelativeDates($rel);
        }
        
        
        // work instructions incl. files
        
        $tooltip = "";
 
        $inst = $ass->getInstruction();
        if ($inst) {
            $tooltip .= nl2br($inst);
        }
 
        $ass_files = $ass->getFiles();
        if (count($ass_files) > 0) {
            $tooltip .= "<br /><br />";
            
            foreach ($ass_files as $file) {
                $ilCtrl->setParameterByClass("ilblogexercisegui", "ass", $a_assignment_id);
                $ilCtrl->setParameterByClass("ilblogexercisegui", "file", urlencode($file["name"]));
                $dl_link = $ilCtrl->getLinkTargetByClass("ilblogexercisegui", "downloadExcAssFile");
                $ilCtrl->setParameterByClass("ilblogexercisegui", "file", "");
                $ilCtrl->setParameterByClass("ilblogexercisegui", "ass", "");
                
                $tooltip .= $file["name"] . ": <a href=\"" . $dl_link . "\">" .
                    $lng->txt("download") . "</a>";
            }
        }
        
        if ($tooltip) {
            $ol_id = "exc_ass_" . $a_assignment_id;
 
            include_once "Services/UIComponent/Overlay/classes/class.ilOverlayGUI.php";
            $overlay = new ilOverlayGUI($ol_id);
 
            // overlay
            $overlay->setAnchor($ol_id . "_tr");
            $overlay->setTrigger($ol_id . "_tr", "click", $ol_id . "_tr");
            $overlay->add();
 
            $info .= "<div id=\"" . $ol_id . "_tr\"><a href=\"#\">" . $lng->txt("exc_instruction") . "</a></div>" .
                "<div id=\"" . $ol_id . "\" style=\"display:none; padding:10px;\" class=\"ilOverlay\">" . $tooltip . "</div>";
        }
        
        return "<div>" . $info . "</div>";
    }
    
    protected function downloadExcAssFile()
    {
        if ($this->file) {
            include_once "Modules/Exercise/classes/class.ilExAssignment.php";
            $ass = new ilExAssignment($this->ass_id);
            $ass_files = $ass->getFiles();
            if (count($ass_files) > 0) {
                foreach ($ass_files as $file) {
                    if ($file["name"] == $this->file) {
                        ilUtil::deliverFile($file["fullpath"], $file["name"]);
                    }
                }
            }
        }
    }
    
    protected function downloadExcSubFile()
    {
        $ilUser = $this->user;
                
        $ass = new ilExAssignment($this->ass_id);
        $submission = new ilExSubmission($ass, $ilUser->getId());
        $submitted = $submission->getFiles();
        if (count($submitted) > 0) {
            $submitted = array_pop($submitted);
 
            $user_data = ilObjUser::_lookupName($submitted["user_id"]);
            $title = ilObject::_lookupTitle($submitted["obj_id"]) . " - " .
                $ass->getTitle() . " - " .
                $user_data["firstname"] . " " .
                $user_data["lastname"] . " (" .
                $user_data["login"] . ").zip";
 
            ilUtil::deliverFile($submitted["filename"], $title);
        }
    }
        
    protected function finalize()
    {
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
        
        include_once "Modules/Exercise/classes/class.ilExSubmissionBaseGUI.php";
        include_once "Modules/Exercise/classes/class.ilExSubmissionObjectGUI.php";
        $exc_gui = ilExSubmissionObjectGUI::initGUIForSubmit($this->ass_id);
        $exc_gui->submitBlog($this->node_id);
 
        ilUtil::sendSuccess($lng->txt("blog_finalized"), true);
        $ilCtrl->returnToParent($this);
    }
}