class.ilCalendarAppointmentGUI.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

include_once('./Services/Calendar/classes/class.ilTimeZone.php');
include_once('./Services/Calendar/classes/class.ilDateTime.php');

class ilCalendarAppointmentGUI
{
        protected $seed = null;
        protected $initialDate = null;
        protected $default_fulltime = true;
        
        protected $app = null;
        protected $rec = null;
        protected $timezone = null;
        
        protected $tpl;
        protected $lng;
        protected $ctrl;

        public function __construct(ilDate $seed,ilDate $initialDate, $a_appointment_id = 0)
        {
                global $ilCtrl,$lng;
                
                $this->lng = $lng;
                $lng->loadLanguageModule('dateplaner');
                $this->ctrl = $ilCtrl;

                $this->initTimeZone();
                $this->initSeed($seed);
                $this->initInitialDate($initialDate);
                $this->initAppointment($a_appointment_id);
        }
        
        public function executeCommand()
        {
                global $ilUser, $ilSetting,$tpl, $ilTabs;
                
                
                // Clear tabs and set back target
                $ilTabs->clearTargets();
                $ilTabs->setBackTarget(
                        $this->lng->txt('cal_back_to_cal'),
                        $this->ctrl->getLinkTarget($this,'cancel')
                );

                $next_class = $this->ctrl->getNextClass($this);
                switch($next_class)
                {
                        
                        default:
                                $cmd = $this->ctrl->getCmd("add");
                                $this->$cmd();
                                break;
                }
                return true;
        }
        
        public function getAppointment()
        {
                return $this->app;
        }
        
        protected function cancel()
        {
                $this->ctrl->returnToParent($this);
        }
        
        protected function initForm($a_mode, $a_as_milestone = false, $a_edit_single_app = false)
        {
                global $ilUser,$tpl;
                
                include_once('./Services/Form/classes/class.ilPropertyFormGUI.php');
                include_once('./Services/Calendar/classes/class.ilCalendarRecurrenceGUI.php');
                include_once('./Services/Calendar/classes/class.ilCalendarCategories.php');
                include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');
                include_once('./Services/Calendar/classes/class.ilCalendarCategory.php');

                $this->form = new ilPropertyFormGUI();
                
                include_once('./Services/YUI/classes/class.ilYuiUtil.php');
                ilYuiUtil::initDomEvent();
                $resp_info = false;
                switch($a_mode)
                {
                        case 'create':
                                $this->ctrl->saveParameter($this,array('seed','idate'));
                                $this->form->setFormAction($this->ctrl->getFormAction($this));
                                if ($a_as_milestone)
                                {
                                        $this->form->setTitle($this->lng->txt('cal_new_ms'));
                                        $this->form->addCommandButton('saveMilestone',$this->lng->txt('cal_add_milestone'));
                                        $this->form->addCommandButton('cancel',$this->lng->txt('cancel'));
                                }
                                else
                                {
                                        $this->form->setTitle($this->lng->txt('cal_new_app'));
                                        $this->form->addCommandButton('save',$this->lng->txt('cal_add_appointment'));
                                        $this->form->addCommandButton('cancel',$this->lng->txt('cancel'));
                                }
                                break;

                        case 'edit':
                                if ($a_as_milestone)
                                {
                                        $this->form->setTitle($this->lng->txt('cal_edit_milestone'));
                                }
                                else
                                {
                                        $this->form->setTitle($this->lng->txt('cal_edit_appointment'));
                                }
                                $this->ctrl->saveParameter($this,array('seed','app_id','idate'));
                                $this->form->setFormAction($this->ctrl->getFormAction($this));
                                
                                $ass = new ilCalendarCategoryAssignments($this->app->getEntryId());
                                $cat = $ass->getFirstAssignment();
                                include_once('./Services/Calendar/classes/class.ilCalendarCategory.php');
                                $cat_info = ilCalendarCategories::_getInstance()->getCategoryInfo($cat);
                                $type = ilObject::_lookupType($cat_info['obj_id']);
                                if ($a_as_milestone && $cat_info['type'] == ilCalendarCategory::TYPE_OBJ
                                        && ($type == "grp" || $type == "crs"))
                                {
                                        $resp_info = true;
                                        $this->form->addCommandButton('editResponsibleUsers',$this->lng->txt('cal_change_responsible_users'));
                                }
                                $this->form->addCommandButton('update',$this->lng->txt('save'));
                                // $this->form->addCommandButton('askDelete',$this->lng->txt('delete'));
                                $this->form->addCommandButton('cancel',$this->lng->txt('cancel'));
                                break;
                }
                // title
                $title = new ilTextInputGUI($this->lng->txt('title'),'title');
                $title->setValue($this->app->getTitle());
                $title->setRequired(true);
                $title->setMaxLength(128);
                $title->setSize(32);
                $this->form->addItem($title);
                
                // calendar selection
                $calendar = new ilSelectInputGUI($this->lng->txt('cal_category_selection'),'calendar');
                if($_POST['category'])
                {
                        $calendar->setValue((int) $_POST['calendar']);
                        $selected_calendar = (int) $_POST['calendar'];
                }
                else if($_GET['category_id'])
                {
                        $calendar->setValue((int) $_GET['category_id']);
                        $selected_calendar = (int) $_GET['category_id'];
                }
                elseif($a_mode == 'edit')
                {
                        $ass = new ilCalendarCategoryAssignments($this->app->getEntryId());
                        $cat = $ass->getFirstAssignment();
                        $calendar->setValue($cat);
                        $selected_calendar = $cat;
                }
                elseif(isset($_GET['ref_id']))
                {
                        include_once('./Services/Calendar/classes/class.ilCalendarCategories.php');
                        $obj_cal = ilObject::_lookupObjId($_GET['ref_id']);
                        $calendar->setValue(ilCalendarCategories::_lookupCategoryIdByObjId($obj_cal));
                        $selected_calendar = ilCalendarCategories::_lookupCategoryIdByObjId($obj_cal);
                }
                $calendar->setRequired(true);
                $cats = ilCalendarCategories::_getInstance($ilUser->getId());
                $calendar->setOptions($cats->prepareCategoriesOfUserForSelection());
                
                include_once './Services/Calendar/classes/class.ilCalendarSettings.php';
                if(ilCalendarSettings::_getInstance()->isNotificationEnabled())
                {
                        $notification_cals = $cats->getNotificationCalendars();
                        $notification_cals = count($notification_cals) ? implode(',',$notification_cals) : ''; 
                        $calendar->addCustomAttribute("onchange=\"ilToggleNotification(new Array(".$notification_cals."));\"");
                }               
                $this->form->addItem($calendar);
                
                if (!$a_as_milestone)
                {
                        include_once './Services/Form/classes/class.ilDateDurationInputGUI.php';
                        $tpl->addJavaScript('./Services/Form/js/date_duration.js');
                        $dur = new ilDateDurationInputGUI($this->lng->txt('cal_fullday'),'event');
                        $dur->setStartText($this->lng->txt('cal_start'));
                        $dur->setEndText($this->lng->txt('cal_end'));
                        $dur->enableToggleFullTime(
                                $this->lng->txt('cal_fullday_title'),
                                $this->app->isFullday() ? true : false 
                        );
                        $dur->setShowTime(true);
                        $dur->setStart($this->app->getStart());
                        $dur->setEnd($this->app->getEnd());
                        $this->form->addItem($dur);

                        // recurrence
                        include_once('./Services/Calendar/classes/Form/class.ilRecurrenceInputGUI.php');
                        $rec = new ilRecurrenceInputGUI($this->lng->txt('cal_recurrences'),'frequence');
                        $rec->setRecurrence($this->rec);
                        $this->form->addItem($rec);

                        // location
                        $where = new ilTextInputGUI($this->lng->txt('cal_where'),'location');
                        $where->setValue($this->app->getLocation());
                        $where->setMaxLength(128);
                        $where->setSize(32);
                        $this->form->addItem($where);
                }
                else
                {
                        $deadline = new ilDateTimeInputGUI($this->lng->txt('cal_deadline'),'event[start]');
                        $deadline->setDate($this->app->getStart());
                        $deadline->setShowTime(false);
                        $deadline->setMinuteStepSize(5);
                        $this->form->addItem($deadline);
                        
                        // completion
                        $completion_vals = array();
                        for($i = 0; $i <= 100; $i+=5)
                        {
                                $completion_vals[$i] = $i." %";
                        }
                        $compl = new ilSelectInputGUI($this->lng->txt('cal_task_completion'),
                                'completion');
                        $compl->setOptions($completion_vals);
                        $compl->setValue($this->app->getCompletion());
                        $this->form->addItem($compl);
                }
                
                $desc = new ilTextAreaInputGUI($this->lng->txt('description'),'description');
                $desc->setValue($this->app->getDescription());
                $desc->setRows(5);
                $this->form->addItem($desc);

                if ($a_as_milestone && $a_mode == "edit" && $resp_info)
                {
                        // users responsible
                        $users = $this->app->readResponsibleUsers();
                        $resp = new ilNonEditableValueGUI($this->lng->txt('cal_responsible'),
                                $users);
                        $delim = "";
                        foreach($users as $r)
                        {
                                $value.= $delim.$r["lastname"].", ".$r["firstname"]." [".$r["login"]."]";
                                $delim = "<br />";
                        }
                        if (count($users) > 0)
                        {
                                $resp->setValue($value);
                        }
                        else
                        {
                                $resp->setValue("-");
                        }

                        $this->form->addItem($resp);
                }
                

                if(ilCalendarSettings::_getInstance()->isUserNotificationEnabled())
                {
                        $notu = new ilTextWizardInputGUI($this->lng->txt('cal_user_notification'), 'notu');
                        $notu->setInfo($this->lng->txt('cal_user_notification_info'));
                        $notu->setSize(20);
                        $notu->setMaxLength(64);

                        $values = array();
                        foreach($this->notification->getRecipients() as $rcp)
                        {
                                switch ($rcp['type'])
                                {
                                        case ilCalendarUserNotification::TYPE_USER:
                                                $values[] = ilObjUser::_lookupLogin($rcp['usr_id']);
                                                break;

                                        case ilCalendarUserNotification::TYPE_EMAIL:
                                                $values[] = $rcp['email'];
                                                break;
                                }
                        }
                        if(count($values))
                                $notu->setValues($values);
                        else
                                $notu->setValues(array(''));
                        $this->form->addItem($notu);
                }

                // Notifications
                include_once './Services/Calendar/classes/class.ilCalendarSettings.php';
                if(ilCalendarSettings::_getInstance()->isNotificationEnabled()  and count($cats->getNotificationCalendars()))
                {
                        $selected_cal = new ilCalendarCategory($selected_calendar);
                        $disabled = true;
                        if($selected_cal->getType() == ilCalendarCategory::TYPE_OBJ)
                        {
                                if(ilObject::_lookupType($selected_cal->getObjId()) == 'crs' or ilObject::_lookupType($selected_cal->getObjId()) == 'grp')
                                {
                                        $disabled = false;
                                }
                        }

                        $tpl->addJavaScript('./Services/Calendar/js/toggle_notification.js');
                        $not = new ilCheckboxInputGUI($this->lng->txt('cal_cg_notification'),'not');
                        $not->setInfo($this->lng->txt('cal_notification_info'));
                        $not->setValue(1);
                        $not->setChecked($this->app->isNotificationEnabled());
                        $not->setDisabled($disabled);
                        $this->form->addItem($not);
                }
        }
        
        
        protected function add()
        {
                global $tpl, $ilHelp;

                $ilHelp->setScreenIdComponent("cal");
                $ilHelp->setScreenId("app");
                $ilHelp->setSubScreenId("create");
                
                $this->initForm('create');
                $tpl->setContent($this->form->getHTML());
        }
        
        protected function addMilestone()
        {
                global $tpl, $ilHelp;

                $ilHelp->setScreenIdComponent("cal");
                $ilHelp->setScreenId("app");
                $ilHelp->setSubScreenId("create_milestone");

                $this->initForm('create', true);
                $tpl->setContent($this->form->getHTML());
        }

        protected function saveMilestone()
        {
                $this->save(true);
        }

        protected function save($a_as_milestone = false)
        {
                global $ilErr;
                
                $this->load($a_as_milestone);
                
                if($this->app->validate() and $this->notification->validate())
                {
                        if(!(int) $_POST['calendar'])
                        {
                                $cat_id = $this->createDefaultCalendar();
                        }
                        else
                        {
                                $cat_id = (int) $_POST['calendar'];
                        }
                        
                        $this->app->save();
                        $this->notification->setEntryId($this->app->getEntryId());
                        $this->notification->save();
                        $this->rec->setEntryId($this->app->getEntryId());
                        $this->saveRecurrenceSettings();
                        
                        include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');
                        $ass = new ilCalendarCategoryAssignments($this->app->getEntryId());
                        $ass->addAssignment($cat_id);
                        
                        // Send notifications
                        include_once './Services/Calendar/classes/class.ilCalendarSettings.php';
                        if(ilCalendarSettings::_getInstance()->isNotificationEnabled() and (bool) $_POST['not'])
                        {
                                $this->distributeNotifications($cat_id,$this->app->getEntryId(),true);
                        }
                        if(ilCalendarSettings::_getInstance()->isUserNotificationEnabled())
                        {
                                $this->distributeUserNotifications();
                        }

                        include_once('./Services/Calendar/classes/class.ilCalendarCategory.php');
                        $cat_info = ilCalendarCategories::_getInstance()->getCategoryInfo($cat_id);
                        $type = ilObject::_lookupType($cat_info['obj_id']);
                        
                        if ($a_as_milestone && $cat_info['type'] == ilCalendarCategory::TYPE_OBJ
                                && ($type == "grp" || $type == "crs"))
                        {
                                ilUtil::sendSuccess($this->lng->txt('cal_created_milestone_resp_q'),true);
                                return $this->showResponsibleUsersList($cat_info['obj_id']);
                        }
                        elseif($a_as_milestone)
                        {
                                ilUtil::sendSuccess($this->lng->txt('cal_created_milestone'),true);
                                $this->ctrl->returnToParent($this);
                        }
                        else
                        {
                                ilUtil::sendSuccess($this->lng->txt('cal_created_appointment'),true);
                                $this->ctrl->returnToParent($this);
                        }
                }
                else
                {
                        ilUtil::sendFailure($ilErr->getMessage());
                }
                if ($a_as_milestone)
                {
                        $this->addMilestone();
                }
                else
                {
                        $this->add();
                }
        }

        protected function distributeUserNotifications()
        {
                global $ilUser;

                include_once './Services/Calendar/classes/class.ilCalendarMailNotification.php';
                $notification =  new ilCalendarMailNotification();
                $notification->setAppointmentId($this->app->getEntryId());
                
                foreach($this->notification->getRecipients() as $rcp)
                {
                        switch($rcp['type'])
                        {
                                case ilCalendarUserNotification::TYPE_USER:
                                        $notification->setSender(ANONYMOUS_USER_ID);
                                        $notification->setRecipients(array($rcp['usr_id']));
                                        $notification->setType(ilCalendarMailNotification::TYPE_USER);
                                        break;

                                case ilCalendarUserNotification::TYPE_EMAIL:
                                        $notification->setSender(ANONYMOUS_USER_ID);
                                        $notification->setRecipients(array($rcp['email']));
                                        $notification->setType(ilCalendarMailNotification::TYPE_USER_ANONYMOUS);
                                        break;
                        }
                        $notification->send();
                }
        }


        protected function distributeNotifications($a_cat_id, $app_id, $a_new_appointment = true)
        {
                include_once('./Services/Calendar/classes/class.ilCalendarCategory.php');
                $cat_info = ilCalendarCategories::_getInstance()->getCategoryInfo($a_cat_id);
                
                include_once './Services/Calendar/classes/class.ilCalendarMailNotification.php';
                $notification =  new ilCalendarMailNotification();
                $notification->setAppointmentId($app_id);
                
                switch($cat_info['type'])
                {
                        case ilCalendarCategory::TYPE_OBJ:
                                
                                        switch($cat_info['obj_type'])
                                        {
                                                case 'crs':
                                                        $ref_ids = ilObject::_getAllReferences($cat_info['obj_id']);
                                                        $ref_id = current($ref_ids);
                                                        $notification->setRefId($ref_id);
                                                        $notification->setType(
                                                                $a_new_appointment ?
                                                                ilCalendarMailNotification::TYPE_CRS_NEW_NOTIFICATION :
                                                                ilCalendarMailNotification::TYPE_CRS_NOTIFICATION);
                                                        break;
                                                
                                                case 'grp':
                                                        $ref_ids = ilObject::_getAllReferences($cat_info['obj_id']);
                                                        $ref_id = current($ref_ids);
                                                        $notification->setRefId($ref_id);
                                                        $notification->setType(
                                                                $a_new_appointment ?
                                                                ilCalendarMailNotification::TYPE_GRP_NEW_NOTIFICATION :
                                                                ilCalendarMailNotification::TYPE_GRP_NOTIFICATION);
                                                        break;
                                        }
                                        break;
                }

                $notification->send();
        }

        function editResponsibleUsers()
        {
                include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');
                $cat_id = ilCalendarCategoryAssignments::_lookupCategory($this->app->getEntryId());
                include_once('./Services/Calendar/classes/class.ilCalendarCategory.php');
                $cat_info = ilCalendarCategories::_getInstance()->getCategoryInfo($cat_id);

                $this->showResponsibleUsersList($cat_info['obj_id']);
        }
        
        function showResponsibleUsersList($a_grp_id)
        {
                global $tpl;

                include_once("./Services/Calendar/classes/class.ilMilestoneResponsiblesTableGUI.php");
                $table_gui = new ilMilestoneResponsiblesTableGUI($this, "", $a_grp_id,
                        $this->app->getEntryId());
                $tpl->setContent($table_gui->getHTML());
        }
        
        function saveMilestoneResponsibleUsers()
        {
                global $ilCtrl;

                $this->app->writeResponsibleUsers($_POST["user_id"]);
                $ilCtrl->returnToParent($this);
        }
        
        protected function askEdit()
        {
                // check for recurring entries
                include_once './Services/Calendar/classes/class.ilCalendarRecurrences.php';
                $rec = ilCalendarRecurrences::_getRecurrences($this->getAppointment()->getEntryId());
                if(!$rec)
                {
                        return $this->edit(TRUE);
                }
                // Show edit single/all appointments
                $this->ctrl->saveParameter($this,array('seed','app_id','dt','idate'));

                include_once('./Services/Utilities/classes/class.ilConfirmationGUI.php');
                $confirm = new ilConfirmationGUI();
                $confirm->setFormAction($this->ctrl->getFormAction($this));
                #$confirm->setHeaderText($this->lng->txt('cal_edit_app_sure'));
                $confirm->setCancel($this->lng->txt('cancel'),'cancel');
                $confirm->addItem('appointments[]',$this->app->getEntryId(),$this->app->getTitle());
                $confirm->addButton($this->lng->txt('cal_edit_single'),'editSingle');
            $confirm->setConfirm($this->lng->txt('cal_edit_recurrences'),'edit');

                $GLOBALS['tpl']->setContent($confirm->getHTML());
        }
        
        protected function editSingle()
        {
                $_REQUEST['rexl'] = 1;
                $GLOBALS['ilCtrl']->setParameter($this,'rexcl',1);
                $this->edit(true);
        }
        
        protected function edit($a_edit_single_app = false)
        {
                global $tpl,$ilUser,$ilErr, $ilHelp;

                $ilHelp->setScreenIdComponent("cal");
                $ilHelp->setScreenId("app");
                if ($this->app->isMilestone())
                {
                        $ilHelp->setSubScreenId("edit_milestone");
                }
                else
                {
                        $ilHelp->setSubScreenId("edit");
                }

                include_once('./Services/Calendar/classes/class.ilCalendarCategory.php');
                include_once('./Services/Calendar/classes/class.ilCalendarCategories.php');
                include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');            

                $GLOBALS['ilCtrl']->saveParameter($this,array('seed','app_id','dt','idate'));

                if($_REQUEST['rexl'])
                {
                        $GLOBALS['ilCtrl']->setParameter($this,'rexl',1);

                        // Calculate new appointment time
                        $duration = $this->getAppointment()->getEnd()->get(IL_CAL_UNIX) - $this->getAppointment()->getStart()->get(IL_CAL_UNIX);
                        include_once './Services/Calendar/classes/class.ilCalendarRecurrenceCalculator.php';
                        $calc = new ilCalendarRecurrenceCalculator($this->getAppointment(), $this->rec);
                        
                        $current_date = new ilDateTime($_REQUEST['dt'],IL_CAL_UNIX);

                        $yesterday = clone $current_date;
                        $yesterday->increment(IL_CAL_DAY,-1);
                        $tomorrow = clone $current_date;
                        $tomorrow->increment(IL_CAL_DAY, 1);
                        

                        foreach($calc->calculateDateList($current_date, $tomorrow, 1) as $date_entry)
                        {
                                if(ilDateTime::_equals($current_date, $date_entry,IL_CAL_DAY))
                                {
                                        $this->getAppointment()->setStart(new ilDateTime($date_entry->get(IL_CAL_UNIX),IL_CAL_UNIX));
                                        $this->getAppointment()->setEnd(new ilDateTime($date_entry->get(IL_CAL_UNIX) + $duration,IL_CAL_UNIX));
                                        break;
                                }
                        }
                        
                        // Finally reset recurrence
                        $this->rec = new ilCalendarRecurrence();
                }
                
                $cat_id = ilCalendarCategoryAssignments::_lookupCategory($this->app->getEntryId());
                $cats = ilCalendarCategories::_getInstance($ilUser->getId());
                
                if(!$cats->isVisible($cat_id))
                {
                        $ilErr->raiseError($this->lng->txt('permission_denied'),$ilErr->WARNING);
                        return false;
                }
                if(!$cats->isEditable($cat_id) or $this->app->isAutoGenerated())
                {
                        $this->showInfoScreen();
                        return true;
                }
                
                $this->initForm('edit', $this->app->isMilestone(), $a_edit_single_app);
                $tpl->setContent($this->form->getHTML());
        }
        
        protected function showInfoScreen()
        {
                global $tpl,$ilUser;
                
                include_once("./Services/InfoScreen/classes/class.ilInfoScreenGUI.php");
                $info = new ilInfoScreenGUI($this);
                $info->setFormAction($this->ctrl->getFormAction($this));

                if ($this->app->isMilestone())
                {
                        $info->addSection($this->lng->txt('cal_ms_details'));
                }
                else
                {
                        $info->addSection($this->lng->txt('cal_details'));
                }

                // Appointment
                $info->addProperty($this->lng->txt('appointment'),
                        ilDatePresentation::formatPeriod(
                                $this->app->getStart(),
                                $this->app->getEnd()));
                $info->addProperty($this->lng->txt('title'),$this->app->getPresentationTitle());

                // Description
                if(strlen($desc = $this->app->getDescription()))
                {
                        $info->addProperty($this->lng->txt('description'),$desc);
                }
                
                // Location
                if(strlen($loc = $this->app->getLocation()))
                {
                        $info->addProperty($this->lng->txt('cal_where'),$loc);
                }

                // completion
                if ($this->app->isMilestone() && $this->app->getCompletion() > 0)
                {
                        $info->addProperty($this->lng->txt('cal_task_completion'),
                                $this->app->getCompletion()." %");
                }

                include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');
                $cat_id = ilCalendarCategoryAssignments::_lookupCategory($this->app->getEntryId());
                $cat_info = ilCalendarCategories::_getInstance()->getCategoryInfo($cat_id);
                $type = ilObject::_lookupType($cat_info['obj_id']);
                if ($this->app->isMilestone() && $cat_info['type'] == ilCalendarCategory::TYPE_OBJ
                        && ($type == "grp" || $type == "crs"))
                {
                        // users responsible
                        $users = $this->app->readResponsibleUsers();
                        $delim = "";
                        foreach($users as $r)
                        {
                                $value.= $delim.$r["lastname"].", ".$r["firstname"]." [".$r["login"]."]";
                                $delim = "<br />";
                        }
                        if (count($users) > 0)
                        {
                                $info->addProperty($this->lng->txt('cal_responsible'),
                                        $value);
                        }
                }

                $category = new ilCalendarCategory($cat_id);            
                
                if($category->getType() == ilCalendarCategory::TYPE_OBJ)
                {
                        $info->addSection($this->lng->txt('additional_info'));
                        
                        $cat_info = ilCalendarCategories::_getInstance()->getCategoryInfo($cat_id);
                        $refs = ilObject::_getAllReferences($cat_info['obj_id']);
                        
                        include_once('./Services/Link/classes/class.ilLink.php');
                        $href = ilLink::_getStaticLink(current($refs),ilObject::_lookupType($cat_info['obj_id']),true);
                        $info->addProperty($this->lng->txt('perma_link'),'<a class="small" href="'.$href.'" target="_top">'.$href.'</a>');
                }
                        
                $tpl->setContent($info->getHTML());
        }
        
        protected function update()
        {
                global $ilErr;

                $single_editing = ($_REQUEST['rexl'] ? true : false);
                
                $this->load($this->app->isMilestone());
                
                if($this->app->validate() and $this->notification->validate())
                {
                        if(!(int) $_POST['calendar'])
                        {
                                $cat_id = $this->createDefaultCalendar();
                        }
                        else
                        {
                                $cat_id = (int) $_POST['calendar'];
                        }
                        
                        if($single_editing)
                        {
                                $this->getAppointment()->save();
                                $this->deleteExclude(false);
                                
                                $this->rec = new ilCalendarRecurrence();
                                $this->rec->setEntryId($this->getAppointment()->getEntryId());
                        }
                        else
                        {
                                $this->getAppointment()->update();
                        }
                        $this->notification->save();
                        $this->saveRecurrenceSettings();
                        
                        include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');
                        $ass = new ilCalendarCategoryAssignments($this->app->getEntryId());
                        $GLOBALS['ilLog']->write($this->app->getEntryId());
                        $ass->deleteAssignments();
                        $ass->addAssignment($cat_id);
                        
                        // Send notifications
                        include_once './Services/Calendar/classes/class.ilCalendarSettings.php';
                        if(ilCalendarSettings::_getInstance()->isNotificationEnabled() and (bool) $_POST['not'])
                        {
                                $this->distributeNotifications($cat_id,$this->app->getEntryId(),false);
                        }
                        if(ilCalendarSettings::_getInstance()->isUserNotificationEnabled())
                        {
                                $this->distributeUserNotifications();
                        }
                        
                        ilUtil::sendSuccess($this->lng->txt('settings_saved'),true);
                        $this->ctrl->returnToParent($this);
                }
                else
                {
                        ilUtil::sendFailure($ilErr->getMessage());
                }
                
                $this->edit();
                
        }
        
        protected function askDelete()
        {
                global $tpl;

                include_once('./Services/Utilities/classes/class.ilConfirmationGUI.php');
                
                $this->ctrl->saveParameter($this,array('seed','app_id','dt','idate'));

                $confirm = new ilConfirmationGUI();
                $confirm->setFormAction($this->ctrl->getFormAction($this));
                $confirm->setHeaderText($this->lng->txt('cal_delete_app_sure'));
                $confirm->setCancel($this->lng->txt('cancel'),'cancel');
                $confirm->addItem('appointments[]',$this->app->getEntryId(),$this->app->getTitle());

                include_once('./Services/Calendar/classes/class.ilCalendarRecurrences.php');
                if(sizeof(ilCalendarRecurrences::_getRecurrences($_GET['app_id']))
                        && !$this->app->isMilestone())
                {
                        $confirm->addButton($this->lng->txt('cal_delete_single'),'deleteexclude');
                    $confirm->setConfirm($this->lng->txt('cal_delete_recurrences'),'delete');
                }
                else
                {
                        $confirm->setConfirm($this->lng->txt('delete'),'delete');
                }

                $tpl->setContent($confirm->getHTML());
                
        }
        
        protected function delete()
        {
                foreach($_POST['appointments'] as $app_id)
                {
                        $app = new ilCalendarEntry($app_id);
                        $app->delete();
                        
                        include_once('./Services/Calendar/classes/class.ilCalendarCategoryAssignments.php');
                        ilCalendarCategoryAssignments::_deleteByAppointmentId($app_id);

                        include_once './Services/Calendar/classes/class.ilCalendarUserNotification.php';
                        ilCalendarUserNotification::deleteCalendarEntry($app_id);
                }
                ilUtil::sendSuccess($this->lng->txt('cal_deleted_app'),true);
                $this->ctrl->returnToParent($this);
        }

        protected function deleteExclude($a_return = true)
        {
                include_once('./Services/Calendar/classes/class.ilCalendarRecurrenceExclusion.php');
                $excl = new ilCalendarRecurrenceExclusion();
                $excl->setEntryId($_REQUEST['app_id']);
                $excl->setDate(new ilDate($_REQUEST['dt'], IL_CAL_UNIX));
                $excl->save();

                if($a_return)
                {
                        ilUtil::sendSuccess($this->lng->txt('cal_deleted_app'),true);
                        $this->ctrl->returnToParent($this);
                }
        }
        
        protected function initTimeZone()
        {
                global $ilUser;
                
                $this->timezone = $ilUser->getTimeZone();
        }

        protected function initInitialDate(ilDate $initialDate)
        {
                if(!isset($_GET['hour']))
                {
                        $this->initialDate = clone $initialDate;
                        $this->default_fulltime = true;
                }
                else
                {
                        if((int) $_GET['hour'] < 10)
                        {
                                $time = '0'.(int) $_GET['hour'].':00:00';
                        }
                        else
                        {
                                $time = (int) $_GET['hour'].':00:00';
                        }
                        $this->initialDate = new ilDateTime($initialDate->get(IL_CAL_DATE).' '.$time,IL_CAL_DATETIME,$this->timezone);
                        $this->default_fulltime = false;
                }
        }
        
        protected function initSeed(ilDate $seed)
        {
                $this->seed = clone $seed;
                $this->default_fulltime = true;
        }
        
        protected function initAppointment($a_app_id = 0)
        {
                include_once('./Services/Calendar/classes/class.ilCalendarEntry.php');
                include_once('./Services/Calendar/classes/class.ilCalendarRecurrences.php');
                $this->app = new ilCalendarEntry($a_app_id);

                include_once './Services/Calendar/classes/class.ilCalendarUserNotification.php';
                $this->notification = new ilCalendarUserNotification($this->app->getEntryId());
                
                if(!$a_app_id)
                {
                        $start = clone $this->initialDate;
                        $this->app->setStart($start);

                        $seed_end = clone $this->initialDate;
                        if($this->default_fulltime)
                        {
                                #$seed_end->increment(IL_CAL_DAY,1);
                        }
                        else
                        {
                                $seed_end->increment(IL_CAL_HOUR,1);
                        }
                        $this->app->setEnd($seed_end);
                        $this->app->setFullday($this->default_fulltime);
                        
                        $this->rec = new ilCalendarRecurrence();
                }
                else
                {
                        $this->rec = ilCalendarRecurrences::_getFirstRecurrence($this->app->getEntryId());
                }
                
        }
        
        protected function load($a_as_milestone = false)
        {
                if ($a_as_milestone)
                {
                        $this->app->setMilestone(true);
                        $this->app->setCompletion(ilUtil::stripSlashes($_POST['completion']));
                }
                
                $this->app->setTitle(ilUtil::stripSlashes($_POST['title']));
                $this->app->setLocation(ilUtil::stripSlashes($_POST['location']));
                $this->app->setDescription(ilUtil::stripSlashes($_POST['description']));
                $this->app->setTitle(ilUtil::stripSlashes($_POST['title']));
                $this->app->enableNotification((int) $_POST['not']);
                if ($a_as_milestone)    // milestones are always fullday events
                {
                        $this->app->setFullday(true);
                }
                else
                {
                        $this->app->setFullday(isset($_POST['event']['fulltime']) ? true : false);
                }

                if($this->app->isFullday())
                {
                        $start = new ilDate($_POST['event']['start']['date']['y'].'-'.$_POST['event']['start']['date']['m'].'-'.$_POST['event']['start']['date']['d'],
                                IL_CAL_DATE);
                        $this->app->setStart($start);
                                
                        $end = new ilDate($_POST['event']['end']['date']['y'].'-'.$_POST['event']['end']['date']['m'].'-'.$_POST['event']['end']['date']['d'],
                                IL_CAL_DATE);

                        if ($a_as_milestone)
                        {
                                // for milestones is end date = start date
                                $this->app->setEnd($start);
                        }
                        else
                        {
                                $this->app->setEnd($end);
                        }
                }
                else
                {
                        $start_dt['year'] = (int) $_POST['event']['start']['date']['y'];
                        $start_dt['mon'] = (int) $_POST['event']['start']['date']['m'];
                        $start_dt['mday'] = (int) $_POST['event']['start']['date']['d'];
                        $start_dt['hours'] = (int) $_POST['event']['start']['time']['h'];
                        $start_dt['minutes'] = (int) $_POST['event']['start']['time']['m'];
                        $start = new ilDateTime($start_dt,IL_CAL_FKT_GETDATE,$this->timezone);
                        $this->app->setStart($start);

                        $end_dt['year'] = (int) $_POST['event']['end']['date']['y'];
                        $end_dt['mon'] = (int) $_POST['event']['end']['date']['m'];
                        $end_dt['mday'] = (int) $_POST['event']['end']['date']['d'];
                        $end_dt['hours'] = (int) $_POST['event']['end']['time']['h'];
                        $end_dt['minutes'] = (int) $_POST['event']['end']['time']['m'];
                        $end = new ilDateTime($end_dt,IL_CAL_FKT_GETDATE,$this->timezone);
                        $this->app->setEnd($end);
                }
                $this->loadNotificationRecipients();
                $this->loadRecurrenceSettings($a_as_milestone = false);
        }

        protected function loadNotificationRecipients()
        {
                $this->notification->setRecipients(array());

                foreach((array) $_POST['notu'] as $rcp)
                {
                        $rcp = trim(ilUtil::stripSlashes($rcp));
                        $usr_id = ilObjUser::_loginExists($rcp);

                        if(strlen($rcp) == 0)
                        {
                                continue;
                        }

                        if($usr_id)
                        {
                                $this->notification->addRecipient(
                                        ilCalendarUserNotification::TYPE_USER,
                                        $usr_id
                                );
                        }
                        else
                        {
                                $this->notification->addRecipient(
                                        ilCalendarUserNotification::TYPE_EMAIL,
                                        0,
                                        $rcp
                                );
                        }
                }
        }
        
        protected function loadRecurrenceSettings($a_as_milestone = false)
        {
                $this->rec->reset();
                
                switch($_POST['frequence'])
                {
                        case IL_CAL_FREQ_DAILY:
                                $this->rec->setFrequenceType($_POST['frequence']);
                                $this->rec->setInterval((int) $_POST['count_DAILY']);
                                break;
                        
                        case IL_CAL_FREQ_WEEKLY:
                                $this->rec->setFrequenceType($_POST['frequence']);
                                $this->rec->setInterval((int) $_POST['count_WEEKLY']);
                                if(is_array($_POST['byday_WEEKLY']))
                                {
                                        $this->rec->setBYDAY(ilUtil::stripSlashes(implode(',',$_POST['byday_WEEKLY'])));
                                }                               
                                break;

                        case IL_CAL_FREQ_MONTHLY:
                                $this->rec->setFrequenceType($_POST['frequence']);
                                $this->rec->setInterval((int) $_POST['count_MONTHLY']);
                                switch((int) $_POST['subtype_MONTHLY'])
                                {
                                        case 0:
                                                // nothing to do;
                                                break;
                                        
                                        case 1:
                                                switch((int) $_POST['monthly_byday_day'])
                                                {
                                                        case 8:
                                                                // Weekday
                                                                $this->rec->setBYSETPOS((int) $_POST['monthly_byday_num']);
                                                                $this->rec->setBYDAY('MO,TU,WE,TH,FR');
                                                                break;
                                                                
                                                        case 9:
                                                                // Day of month
                                                                $this->rec->setBYMONTHDAY((int) $_POST['monthly_byday_num']);
                                                                break;
                                                                
                                                        default:
                                                                $this->rec->setBYDAY((int) $_POST['monthly_byday_num'].$_POST['monthly_byday_day']);
                                                                break;
                                                }
                                                break;
                                        
                                        case 2:
                                                $this->rec->setBYMONTHDAY((int) $_POST['monthly_bymonthday']);
                                                break;
                                }
                                break;                  
                        
                        case IL_CAL_FREQ_YEARLY:
                                $this->rec->setFrequenceType($_POST['frequence']);
                                $this->rec->setInterval((int) $_POST['count_YEARLY']);
                                switch((int) $_POST['subtype_YEARLY'])
                                {
                                        case 0:
                                                // nothing to do;
                                                break;
                                        
                                        case 1:
                                                $this->rec->setBYMONTH((int) $_POST['yearly_bymonth_byday']);
                                                $this->rec->setBYDAY((int) $_POST['yearly_byday_num'].$_POST['yearly_byday']);
                                                break;
                                        
                                        case 2:
                                                $this->rec->setBYMONTH((int) $_POST['yearly_bymonth_by_monthday']);
                                                $this->rec->setBYMONTHDAY((int) $_POST['yearly_bymonthday']);
                                                break;
                                }
                                break;                  
                }
                
                // UNTIL
                switch((int) $_POST['until_type'])
                {
                        case 1:
                                $this->rec->setFrequenceUntilDate(null);
                                // nothing to do
                                break;
                                
                        case 2:
                                $this->rec->setFrequenceUntilDate(null);
                                $this->rec->setFrequenceUntilCount((int) $_POST['count']);
                                break;
                                
                        case 3:
                                $end_dt['year'] = (int) $_POST['until_end']['date']['y'];
                                $end_dt['mon'] = (int) $_POST['until_end']['date']['m'];
                                $end_dt['mday'] = (int) $_POST['until_end']['date']['d'];
                                
                                $this->rec->setFrequenceUntilCount(0);
                                $this->rec->setFrequenceUntilDate(new ilDate($end_dt,IL_CAL_FKT_GETDATE,$this->timezone));
                                break;
                }
                
        }
        
        protected function saveRecurrenceSettings()
        {
                switch($_POST['frequence'])
                {
                        case 'NONE':
                        case '':
                                // No recurrence => delete if there is an recurrence rule
                                if($this->rec->getRecurrenceId())
                                {
                                        $this->rec->delete();
                                }
                                break;
                        
                        default:
                                if($this->rec->getRecurrenceId())
                                {
                                        $this->rec->update();
                                }
                                else
                                {
                                        $this->rec->save();
                                }
                                break;
                }
        }
        
        protected function createDefaultCalendar()
        {
                global $ilUser,$lng;

                $cat = new ilCalendarCategory();
                $cat->setColor(ilCalendarCategory::DEFAULT_COLOR);
                $cat->setType(ilCalendarCategory::TYPE_USR);
                $cat->setTitle($this->lng->txt('cal_default_calendar'));
                $cat->setObjId($ilUser->getId());
                
                // delete calendar cache
                include_once './Services/Calendar/classes/class.ilCalendarCache.php';
                ilCalendarCache::getInstance()->deleteUserEntries($ilUser->getId());

                return $cat->add();
        }
        
        protected function confirmRegister()
        {
                global $tpl;
                
                $entry = new ilCalendarEntry((int) $_GET['app_id']);
                $start = ilDatePresentation::formatDate(
                        new ilDateTime($_GET['dstart'],IL_CAL_UNIX),
                        new ilDateTime($_GET['dend'],IL_CAL_UNIX)
                );
                        
                
                include_once 'Services/Utilities/classes/class.ilConfirmationGUI.php';
                $conf = new ilConfirmationGUI;
                
                $this->ctrl->setParameter($this,'dstart',(int) $_REQUEST['dstart']);
                $this->ctrl->setParameter($this,'dend',(int) $_REQUEST['dend']);
                
                $conf->setFormAction($this->ctrl->getFormAction($this));
                $conf->setHeaderText($this->lng->txt('cal_confirm_reg_info'));
                $conf->setConfirm($this->lng->txt('cal_reg_register'), 'register');
                $conf->setCancel($this->lng->txt('cancel'), 'cancel');
                $conf->addItem('app_id', $entry->getEntryId(), $entry->getTitle().' ('.$start.')');
                
                $tpl->setContent($conf->getHTML());
        }
        
        protected function register()
        {
                global $ilUser;
                
                include_once './Services/Calendar/classes/class.ilCalendarRegistration.php';
                $reg = new ilCalendarRegistration((int) $_POST['app_id']);
                $reg->register(
                        $ilUser->getId(),
                        new ilDateTime((int) $_REQUEST['dstart'],IL_CAL_UNIX),
                        new ilDateTime((int) $_REQUEST['dend'],IL_CAL_UNIX)
                );

                ilUtil::sendSuccess($this->lng->txt('cal_reg_registered'),true);
                $this->ctrl->returnToParent($this);
        }

        public function confirmUnregister()
        {
                global $tpl;
                
                
                $entry = new ilCalendarEntry((int) $_GET['app_id']);
                $start = ilDatePresentation::formatDate(
                        $dstart = new ilDateTime($_GET['dstart'],IL_CAL_UNIX),
                        $dend = new ilDateTime($_GET['dend'],IL_CAL_UNIX)
                );
                        
                
                include_once 'Services/Utilities/classes/class.ilConfirmationGUI.php';
                $conf = new ilConfirmationGUI;
                
                $this->ctrl->setParameter($this,'dstart',(int) $_REQUEST['dstart']);
                $this->ctrl->setParameter($this,'dend',(int) $_REQUEST['dend']);
                
                $conf->setFormAction($this->ctrl->getFormAction($this));
                $conf->setHeaderText($this->lng->txt('cal_confirm_unreg_info'));
                $conf->setConfirm($this->lng->txt('cal_reg_unregister'), 'unregister');
                $conf->setCancel($this->lng->txt('cancel'), 'cancel');
                $conf->addItem('app_id', $entry->getEntryId(), $entry->getTitle().' ('.$start.')');
                
                $tpl->setContent($conf->getHTML());
        }

        protected function unregister()
        {
                global $ilUser;
                
                include_once './Services/Calendar/classes/class.ilCalendarRegistration.php';
                $reg = new ilCalendarRegistration((int) $_POST['app_id']);
                $reg->unregister(
                        $ilUser->getId(),
                        new ilDateTime((int) $_REQUEST['dstart'],IL_CAL_UNIX),
                        new ilDateTime((int) $_REQUEST['dend'],IL_CAL_UNIX)
                );

                ilUtil::sendSuccess($this->lng->txt('cal_reg_unregistered'),true);
                $this->ctrl->returnToParent($this);
        }
        
        public function book()
    {
                global $ilUser, $tpl;
                
                $entry = (int)$_GET['app_id'];
                $user = (int)$_GET['bkid'];

                $this->ctrl->saveParameter($this,'app_id');
                
                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                include_once 'Services/Booking/classes/class.ilBookingEntry.php';
                $entry = new ilCalendarEntry($entry);

                $form = $this->initFormConfirmBooking();
                $form->getItemByPostVar('date')->setValue(ilDatePresentation::formatPeriod($entry->getStart(), $entry->getEnd()));
                $form->getItemByPostVar('title')->setValue($entry->getTitle()." (".ilObjUser::_lookupFullname($user).')');
                
                $tpl->setContent($form->getHTML());
                return true;
        }
        
        protected function initFormConfirmBooking()
        {
                include_once './Services/Form/classes/class.ilPropertyFormGUI.php';
                $form = new ilPropertyFormGUI();
                $form->setFormAction($this->ctrl->getFormAction($this));
                $form->addCommandButton('bookconfirmed',$this->lng->txt('cal_confirm_booking'));
                $form->addCommandButton('cancel',$this->lng->txt('cancel'));
                
                $date = new ilNonEditableValueGUI($this->lng->txt('appointment'),'date');
                $form->addItem($date);
                
                $title = new ilNonEditableValueGUI($this->lng->txt('title'),'title');
                $form->addItem($title);
                
                $message = new ilTextAreaInputGUI($this->lng->txt('cal_ch_booking_message_tbl'), 'comment');
                $message->setRows(5);
                $form->addItem($message);
                
                return $form;
        }

        public function bookconfirmed()
        {
                global $ilUser;

                $entry = (int) $_REQUEST['app_id'];
                $user = (int) $_REQUEST['bkid'];
                
                $form = $this->initFormConfirmBooking();
                if($form->checkInput())
                {
                        // check if appointment is bookable
                        include_once './Services/Calendar/classes/class.ilCalendarEntry.php';
                        $cal_entry = new ilCalendarEntry($entry);
                        
                        include_once './Services/Booking/classes/class.ilBookingEntry.php';
                        $booking = new ilBookingEntry($cal_entry->getContextId());
                        
                        if(!$booking->isAppointmentBookableForUser($entry, $GLOBALS['ilUser']->getId()))
                        {
                                ilUtil::sendFailure($this->lng->txt('cal_booking_failed_info'), true);
                                $this->ctrl->returnToParent($this);
                        }
                        
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourUtils.php';
                        ilConsultationHourUtils::bookAppointment($ilUser->getId(), $entry);
                        
                        include_once './Services/Booking/classes/class.ilBookingEntry.php';
                        ilBookingEntry::writeBookingMessage($entry, $ilUser->getId(), $form->getInput('comment'));
                }
                ilUtil::sendSuccess($this->lng->txt('cal_booking_confirmed'),true);
                $this->ctrl->returnToParent($this);
        }

        public function cancelBooking()
        {
                global $ilUser, $tpl;

                $entry = (int)$_GET['app_id'];
        
                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                $entry = new ilCalendarEntry($entry);

                $category = $this->calendarEntryToCategory($entry);
                if($category->getType() == ilCalendarCategory::TYPE_CH)
                {
                        include_once 'Services/Booking/classes/class.ilBookingEntry.php';
                        $booking = new ilBookingEntry($entry->getContextId());
                        if(!$booking->hasBooked($entry->getEntryId()))
                        {
                                $this->ctrl->returnToParent($this);
                                return false;
                        }

                        $entry_title = ' '.$entry->getTitle()." (".ilObjUser::_lookupFullname($booking->getObjId()).')';
                }
                else if($category->getType() == ilCalendarCategory::TYPE_BOOK)
                {
                        $entry_title = ' '.$entry->getTitle();
                }
                else
                {
                        $this->ctrl->returnToParent($this);
                        return false;
                }

                $title = ilDatePresentation::formatPeriod($entry->getStart(), $entry->getEnd());
                
                include_once 'Services/Utilities/classes/class.ilConfirmationGUI.php';
                $conf = new ilConfirmationGUI;
                $conf->setFormAction($this->ctrl->getFormAction($this));
                $conf->setHeaderText($this->lng->txt('cal_cancel_booking_info'));
                $conf->setConfirm($this->lng->txt('cal_cancel_booking'), 'cancelconfirmed');
                $conf->setCancel($this->lng->txt('cancel'), 'cancel');
                $conf->addItem('app_id', $entry->getEntryId(), $title.' - '.$entry_title);

                $tpl->setContent($conf->getHTML());
        }

        public function cancelConfirmed()
        {
                global $ilUser;

                $entry = (int)$_POST['app_id'];
                $user = (int)$_GET['bkid'];

                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                $entry = new ilCalendarEntry($entry);
                
                $category = $this->calendarEntryToCategory($entry);
                if($category->getType() == ilCalendarCategory::TYPE_CH)
                {                       
                        // find cloned calendar entry in user calendar
                        include_once 'Services/Calendar/classes/ConsultationHours/class.ilConsultationHourAppointments.php';
                        $GLOBALS['ilLog']->dump($entry->getStart());
                        $apps = ilConsultationHourAppointments::getAppointmentIds(
                                        $ilUser->getId(), 
                                        $entry->getContextId(), 
                                        $entry->getStart(),
                                        ilCalendarCategory::TYPE_CH,
                                        false);
                        $GLOBALS['ilLog']->dump($apps);

                        // Fix for wrong, old entries
                        foreach((array) $apps as $own_app)
                        {
                                $ref_entry = new ilCalendarEntry($own_app);
                                $ref_entry->delete();
                        }
                        
                        include_once 'Services/Booking/classes/class.ilBookingEntry.php';
                        $booking = new ilBookingEntry($entry->getContextId());
                        $booking->cancelBooking($entry->getEntryId());

                        // do NOT delete original entry
                }
                else if($category->getType() == ilCalendarCategory::TYPE_BOOK)
                {
                        include_once 'Modules/BookingManager/classes/class.ilBookingReservation.php';
                        $booking = new ilBookingReservation($entry->getContextId());
                        $booking->setStatus(ilBookingReservation::STATUS_CANCELLED);
                        $booking->update();
                        
                        $entry->delete();
                }

                ilUtil::sendSuccess($this->lng->txt('cal_cancel_booking_confirmed'),true);
                $this->ctrl->returnToParent($this);
        }

        protected function calendarEntryToCategory(ilCalendarEntry $entry)
        {
                include_once 'Services/Calendar/classes/class.ilCalendarCategoryAssignments.php';
                include_once 'Services/Calendar/classes/class.ilCalendarCategory.php';
                $assignment = new ilCalendarCategoryAssignments($entry->getEntryId());
                $assignment = $assignment->getFirstAssignment();
                return new ilCalendarCategory($assignment);
        }

        protected function doUserAutoComplete()
        {
                if(!isset($_GET['autoCompleteField']))
                {
                        $a_fields = array('login','firstname','lastname','email');
                }
                else
                {
                        $a_fields = array((string) $_GET['autoCompleteField']);
                }

                $GLOBALS['ilLog']->write(print_r($a_fields,true));
                include_once './Services/User/classes/class.ilUserAutoComplete.php';
                $auto = new ilUserAutoComplete();
                $auto->setSearchFields($a_fields);
                $auto->enableFieldSearchableCheck(true);
                $auto->setMoreLinkAvailable(true);

                if(($_REQUEST['fetchall']))
                {
                        $auto->setLimit(ilUserAutoComplete::MAX_ENTRIES);
                }

                echo $auto->getList($_REQUEST['query']);
                exit();
        }

}
?>