class.ilMembershipCronNotifications.php

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<?php

/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once "Services/Cron/classes/class.ilCronJob.php";

class ilMembershipCronNotifications extends ilCronJob
{
        public function getId()
        {
                return "mem_notification";
        }
        
        public function getTitle()
        {
                global $lng;
                
                return $lng->txt("enable_course_group_notifications");
        }
        
        public function getDescription()
        {
                global $lng;
                
                return $lng->txt("enable_course_group_notifications_desc");
        }
        
        public function getDefaultScheduleType()
        {
                return self::SCHEDULE_TYPE_DAILY;
        }
        
        public function getDefaultScheduleValue()
        {
                return;
        }
        
        public function hasAutoActivation()
        {
                return false;
        }
        
        public function hasFlexibleSchedule()
        {
                return false;
        }

        public function run()
        {                               
                global $lng, $ilDB;
                
                $status = ilCronJobResult::STATUS_NO_ACTION;            
                $status_details = null;
        
                $setting = new ilSetting("cron");               
                $last_run = $setting->get(get_class($this));
                                
                // #10284 - we already did send today, do nothing
                if($last_run == date("Y-m-d"))
                {                       
                        // #14005
                        $status_details = "Did already run today.";
                }
                else
                {
                        // gather objects and participants with notification setting
                        $objects = array();
                        $set = $ilDB->query("SELECT usr_id,keyword FROM usr_pref".
                                " WHERE ".$ilDB->like("keyword", "text", "grpcrs_ntf_%").
                                " AND value = ".$ilDB->quote("1", "text"));
                        while($row = $ilDB->fetchAssoc($set))
                        {
                                $ref_id = substr($row["keyword"], 11);
                                $type = ilObject::_lookupType($ref_id, true);
                                if($type)
                                {
                                        $objects[$type][$ref_id][] = $row["usr_id"];
                                }
                        }

                        $counter = 0;
                        if(sizeof($objects))
                        {
                                $old_lng = $lng;

                                include_once "Services/News/classes/class.ilNewsItem.php";
                                foreach($objects as $type => $ref_ids)
                                {
                                        // type is not needed for now
                                        foreach($ref_ids as $ref_id => $user_ids)
                                        {
                                                // gather news per object
                                                $news_item = new ilNewsItem();
                                                if($news_item->checkNewsExistsForGroupCourse($ref_id))
                                                {
                                                        foreach($user_ids as $user_id)
                                                        {
                                                                // gather news for user
                                                                $user_news = $news_item->getNewsForRefId($ref_id,
                                                                        false, false, 1, false, false, false, false,
                                                                        $user_id);
                                                                if($user_news)
                                                                {
                                                                        $this->sendMail($user_id, $ref_id, $user_news);
                                                                        $counter++;
                                                                }
                                                        }
                                                }
                                        }
                                }

                                $lng = $old_lng;
                        }

                        // save last run
                        $setting->set(get_class($this), date("Y-m-d")); 

                        if($counter)
                        {
                                $status = ilCronJobResult::STATUS_OK;
                        }                       
                }
                
                $result = new ilCronJobResult();
                $result->setStatus($status);            
                
                if($status_details)
                {
                        $result->setMessage($status_details);
                }
                
                return $result;
        }

        protected function sendMail($a_user_id, $a_ref_id, array $news)
        {
                global $lng, $ilUser;

                $obj_id = ilObject::_lookupObjId($a_ref_id);
                $obj_type = ilObject::_lookupType($obj_id);
                                                
                include_once "./Services/Notification/classes/class.ilSystemNotification.php";
                $ntf = new ilSystemNotification();              
                $ntf->setLangModules(array("crs", "news"));
                $ntf->setRefId($a_ref_id);      
                $ntf->setGotoLangId('url');
                $ntf->setSubjectLangId('crs_subject_course_group_notification');
                
                // user specific language
                $lng = $ntf->getUserLanguage($a_user_id);
                        
                $obj_title = $lng->txt($obj_type)." \"".ilObject::_lookupTitle($obj_id)."\"";           
                $ntf->setIntroductionDirect(sprintf($lng->txt("crs_intro_course_group_notification_for"), $obj_title));
                
                $subject = sprintf($lng->txt("crs_subject_course_group_notification"), $obj_title);
                
                // news summary
                $counter = 1;
                $txt = "";
                foreach($news as $item)
                {
                        $title = ilNewsItem::determineNewsTitle($item["context_obj_type"],
                                $item["title"], $item["content_is_lang_var"], $item["agg_ref_id"], 
                                $item["aggregation"]);
                        $content = ilNewsItem::determineNewsContent($item["context_obj_type"], 
                                $item["content"], $item["content_text_is_lang_var"]);
                        
                        $obj_id = ilObject::_lookupObjId($item["ref_id"]);
                        $obj_title = ilObject::_lookupTitle($obj_id);
                        
                        // path
                        include_once './Services/Locator/classes/class.ilLocatorGUI.php';                       
                        $cont_loc = new ilLocatorGUI();
                        $cont_loc->addContextItems($item["ref_id"], true);
                        $cont_loc->setTextOnly(true);
                        
                        // #9954/#10044
                        // see ilInitialisation::requireCommonIncludes()
                        @include_once "HTML/Template/ITX.php";          // new implementation
                        if (class_exists("HTML_Template_ITX"))
                        {
                                include_once "./Services/UICore/classes/class.ilTemplateHTMLITX.php";
                        }
                        else
                        {
                                include_once "HTML/ITX.php";            // old implementation
                                include_once "./Services/UICore/classes/class.ilTemplateITX.php";
                        }
                        require_once "./Services/UICore/classes/class.ilTemplate.php";                  
                        $loc = "[".$cont_loc->getHTML()."]";
                                        
                        if($counter > 1)
                        {
                                $txt .= $ntf->getBlockBorder();
                        }
                        $txt .= '#'.$counter." - ".$loc." ".$obj_title."\n\n";
                        $txt .= $title;
                        if($content)
                        {
                                $txt .= "\n".$content;
                        }                       
                        $txt .= "\n\n";

                        ++$counter;
                }
                $ntf->addAdditionalInfo("news", $txt, true);
                
                // #10044
                $mail = new ilMail($ilUser->getId());
                $mail->enableSOAP(false); // #10410
                $mail->sendMail(ilObjUser::_lookupLogin($a_user_id), 
                        null, 
                        null,
                        $subject, 
                        $ntf->composeAndGetMessage($a_user_id, null, "read", true), 
                        null, 
                        array("system"));
        }
        
        public function addToExternalSettingsForm($a_form_id, array &$a_fields, $a_is_active)
        {                               
                global $lng;
                
                switch($a_form_id)
                {                       
                        case ilAdministrationSettingsFormHandler::FORM_COURSE:                          
                        case ilAdministrationSettingsFormHandler::FORM_GROUP:                                                           
                                $a_fields["enable_course_group_notifications"] = $a_is_active ? 
                                        $lng->txt("enabled") :
                                        $lng->txt("disabled");
                                break;
                }
        }
        
        public function activationWasToggled($a_currently_active)
        {
                global $ilSetting;
                                
                // propagate cron-job setting to object setting
                $ilSetting->set("crsgrp_ntf", (bool)$a_currently_active);               
        }
}

?>