class.ilObjectActivation.php

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

class ilObjectActivation
{
        protected $timing_type;
        protected $timing_start;
        protected $timing_end;
        protected $suggestion_start;
        protected $suggestion_end;
        protected $earliest_start;
        protected $latest_end;
        protected $visible;
        protected $changeable;
        
        protected static $preloaded_data = array();
        
        const TIMINGS_ACTIVATION = 0;
        const TIMINGS_DEACTIVATED = 1;
        const TIMINGS_PRESETTING = 2;
        const TIMINGS_FIXED = 3; // session only => obsolete?
        
        function __construct()
        {
                
        }
        
        function setTimingType($a_type)
        {
                $this->timing_type = $a_type;
        }
        
        function getTimingType()
        {
                return $this->timing_type;
        }
        
        function setTimingStart($a_start)
        {
                $this->timing_start = $a_start;
        }
        
        function getTimingStart()
        {
                return $this->timing_start;
        }
        
        function setTimingEnd($a_end)
        {
                $this->timing_end = $a_end;
        }
        
        function getTimingEnd()
        {
                return $this->timing_end;
        }
        
        function setSuggestionStart($a_start)
        {
                $this->suggestion_start = $a_start;
        }
        
        function getSuggestionStart()
        {
                return $this->suggestion_start ? $this->suggestion_start : mktime(0,0,1,date('n',time()),date('j',time()),date('Y',time()));
        }
        
        function setSuggestionEnd($a_end)
        {
                $this->suggestion_end = $a_end;
        }
        
        function getSuggestionEnd()
        {
                return $this->suggestion_end ? $this->suggestion_end : mktime(23,55,00,date('n',time()),date('j',time()),date('Y',time()));
        }
        
        function setEarliestStart($a_start)
        {
                $this->earliest_start = $a_start;
        }
        
        function getEarliestStart()
        {
                return $this->earliest_start ? $this->earliest_start : mktime(0,0,1,date('n',time()),date('j',time()),date('Y',time()));
        }
        
        function setLatestEnd($a_end)
        {
                $this->latest_end = $a_end;
        }
        
        function getLatestEnd()
        {
                return $this->latest_end ? $this->latest_end : mktime(23,55,00,date('n',time()),date('j',time()),date('Y',time()));
        }
        
        function toggleVisible($a_status)
        {
                $this->visible = (int) $a_status;
        }
        
        function enabledVisible()
        {
                return (bool) $this->visible;
        }
        
        function toggleChangeable($a_status)
        {
                $this->changeable = (int) $a_status;
        }
        
        function enabledChangeable()
        {
                return (bool) $this->changeable;
        }
                
        function validateActivation()
        {
                global $ilErr, $lng;
                
                $ilErr->setMessage('');

                if($this->getTimingType() == self::TIMINGS_ACTIVATION)
                {
                        if($this->getTimingStart() > $this->getTimingEnd())
                        {
                                $ilErr->appendMessage($lng->txt("crs_activation_start_invalid"));
                        }
                }
                else if($this->getTimingType() == self::TIMINGS_PRESETTING)
                {
                        if($this->getSuggestionStart() > $this->getSuggestionEnd())
                        {
                                $ilErr->appendMessage($lng->txt('crs_latest_end_not_valid'));
                        }
                }
        
                if($ilErr->getMessage())
                {
                        return false;
                }
                return true;
        }
        
        function update($a_ref_id, $a_parent_id = null)
        {
                global $ilDB;
                
                // #10110
                $query = "UPDATE crs_items SET ".
                        "timing_type = ".$ilDB->quote($this->getTimingType(),'integer').", ".
                        "timing_start = ".$ilDB->quote((int)$this->getTimingStart(),'integer').", ".
                        "timing_end = ".$ilDB->quote((int)$this->getTimingEnd(),'integer').", ".
                        "suggestion_start = ".$ilDB->quote($this->getSuggestionStart(),'integer').", ".
                        "suggestion_end = ".$ilDB->quote($this->getSuggestionEnd(),'integer').", ".
                        "changeable = ".$ilDB->quote($this->enabledChangeable(),'integer').", ".
                        "earliest_start = ".$ilDB->quote($this->getEarliestStart(),'integer').", ".
                        "latest_end = ".$ilDB->quote($this->getLatestEnd(),'integer').", ";
                
                if($a_parent_id)
                {
                        $query .= "parent_id = ".$ilDB->quote($a_parent_id,'integer').", ";
                }
                
                $query .=  "visible = ".$ilDB->quote($this->enabledVisible(),'integer')." ".
                        "WHERE obj_id = ".$ilDB->quote($a_ref_id,'integer');
                $ilDB->manipulate($query);
                
                unset(self::$preloaded_data[$a_ref_id]);
        
                return true;
        }

        public static function preloadData(array $a_ref_ids)
        {
                global $ilDB;
                
                $sql = "SELECT * FROM crs_items".
                        " WHERE ".$ilDB->in("obj_id", $a_ref_ids, "", "integer");               
                $set = $ilDB->query($sql);
                while($row = $ilDB->fetchAssoc($set))
                {
                        self::$preloaded_data[$row["obj_id"]] = $row;                                           
                }
        }
                
        public static function getItem($a_ref_id)
        {
                global $ilDB;
                
                if(isset(self::$preloaded_data[$a_ref_id]))
                {
                        return self::$preloaded_data[$a_ref_id];
                }
                
                $sql = "SELECT * FROM crs_items".
                        " WHERE obj_id = ".$ilDB->quote($a_ref_id, "integer");  
                $set = $ilDB->query($sql);
                $row = $ilDB->fetchAssoc($set);
        
                if(!isset($row["obj_id"]))
                {                       
                        $row = self::createDefaultEntry($a_ref_id);                     
                }
                if($row["obj_id"])
                {
                        self::$preloaded_data[$row["obj_id"]] = $row;
                }
                return $row;
        }

        public static function addAdditionalSubItemInformation(array &$a_item)
        {
                global $ilUser;
                
                $item = self::getItem($a_item['ref_id']);
                
                $a_item['obj_id'] = ($a_item['obj_id'] > 0)
                        ? $a_item['obj_id']
                        : ilObject::_lookupObjId($a_item['ref_id']);
                $a_item['type'] = ($a_item['type'] != '')
                        ? $a_item['type']
                        : ilObject::_lookupType($a_item['obj_id']);
                
                $a_item['timing_type'] = $item['timing_type'];
                
                if($item['changeable'] &&  
                        $item['timing_type'] == self::TIMINGS_PRESETTING)
                {
                        include_once 'Modules/Course/classes/Timings/class.ilTimingPlaned.php';
                        $user_data = ilTimingPlaned::_getPlanedTimings($ilUser->getId(), $a_item['ref_id']);                    
                        if($user_data['planed_start'])
                        {
                                $a_item['start'] = $user_data['planed_start'];
                                $a_item['end'] = $user_data['planed_end'];
                                $a_item['activation_info'] = 'crs_timings_planed_info';
                        }
                        else
                        {
                                $a_item['start'] = $item['suggestion_start'];
                                $a_item['end'] = $item['suggestion_end'];
                                $a_item['activation_info'] = 'crs_timings_suggested_info';
                        }
                }
                elseif($item['timing_type'] == self::TIMINGS_PRESETTING)
                {
                        $a_item['start'] = $item['suggestion_start'];
                        $a_item['end'] = $item['suggestion_end'];
                        $a_item['activation_info'] = 'crs_timings_suggested_info';
                }
                elseif($item['timing_type'] == self::TIMINGS_ACTIVATION)
                {
                        $a_item['start'] = $item['timing_start'];
                        $a_item['end'] = $item['timing_end'];
                        $a_item['activation_info'] = 'obj_activation_list_gui';
                }
                else
                {
                        $a_item['start'] = 'abc';
                }               
                
                // #7359 - session sorting should always base on appointment date
                if($a_item['type'] == 'sess')
                {
                        include_once('./Modules/Session/classes/class.ilSessionAppointment.php');
                        $info = ilSessionAppointment::_lookupAppointment($a_item['obj_id']);

                        // #11987
                        $a_item['masked_start'] = $a_item['start'];
                        $a_item['masked_end'] = $a_item['end'];
                        $a_item['start'] = $info['start'];
                        $a_item['end'] = $info['end'];                  
                }
        }
        
        public static function addListGUIActivationProperty(ilObjectListGUI $a_list_gui, array &$a_item)
        {
                global $lng;
                
                self::addAdditionalSubItemInformation($a_item);
                if(isset($a_item['timing_type']))
                {                                               
                        if(!isset($a_item['masked_start']))
                        {
                                $start = $a_item['start'];
                                $end = $a_item['end'];
                        }
                        else
                        {
                                $start = $a_item['masked_start'];
                                $end = $a_item['masked_end'];
                        }                       
                        $activation = '';
                        switch($a_item['timing_type'])
                        {
                                case ilObjectActivation::TIMINGS_ACTIVATION:
                                        $activation = ilDatePresentation::formatPeriod(
                                                new ilDateTime($start,IL_CAL_UNIX),
                                                new ilDateTime($end,IL_CAL_UNIX));
                                        break;
                                                
                                case ilObjectActivation::TIMINGS_PRESETTING:
                                        $activation = ilDatePresentation::formatPeriod(
                                                new ilDate($start,IL_CAL_UNIX),
                                                new ilDate($end,IL_CAL_UNIX));
                                        break;                                  
                        }
                        if ($activation != "")
                        {
                                global $lng;
                                $lng->loadLanguageModule('crs');
                                
                                $a_list_gui->addCustomProperty($lng->txt($a_item['activation_info']),
                                        $activation, false, true);              
                        }
                }
        }
                
        protected static function createDefaultEntry($a_ref_id)
        {
                global $ilDB, $tree;
                
                $parent_id = $tree->getParentId($a_ref_id);
                if(!$parent_id)
                {
                        return;
                }
                
                // #10077
                $ilDB->lockTables(array(
                        array("name" => "crs_items", 
                                "type" => ilDB::LOCK_WRITE, 
                                "alias" => "")
                ));
                
                $sql = "SELECT * FROM crs_items".
                        " WHERE obj_id = ".$ilDB->quote($a_ref_id, "integer");  
                $set = $ilDB->query($sql);
                if(!$ilDB->numRows($set))
                {               
                        $now = time();
                        $now_parts = getdate($now);

                        $a_item = array();
                        $a_item["timing_type"]          = self::TIMINGS_DEACTIVATED;
                        $a_item["timing_start"]         = $now;
                        $a_item["timing_end"]           = $now;
                        $a_item["suggestion_start"]     = $now;
                        $a_item["suggestion_end"]       = $now;
                        $a_item['visible']                      = 0;
                        $a_item['changeable']           = 0;
                        $a_item['earliest_start']       = $now;
                        $a_item['latest_end']       = mktime(23,55,00,$now_parts["mon"],$now_parts["mday"],$now_parts["year"]);
                        $a_item['visible']                      = 0;
                        $a_item['changeable']           = 0;
                        
                        $query = "INSERT INTO crs_items (parent_id,obj_id,timing_type,timing_start,timing_end," .
                                "suggestion_start,suggestion_end, ".
                                "changeable,earliest_start,latest_end,visible,position) ".
                                "VALUES( ".
                                $ilDB->quote($parent_id,'integer').",".
                                $ilDB->quote($a_ref_id,'integer').",".
                                $ilDB->quote($a_item["timing_type"],'integer').",".
                                $ilDB->quote($a_item["timing_start"],'integer').",".
                                $ilDB->quote($a_item["timing_end"],'integer').",".
                                $ilDB->quote($a_item["suggestion_start"],'integer').",".
                                $ilDB->quote($a_item["suggestion_end"],'integer').",".
                                $ilDB->quote($a_item["changeable"],'integer').",".
                                $ilDB->quote($a_item['earliest_start'],'integer').", ".
                                $ilDB->quote($a_item['latest_end'],'integer').", ".
                                $ilDB->quote($a_item["visible"],'integer').", ".
                                $ilDB->quote(0,'integer').")";
                        $ilDB->manipulate($query);
                }
                
                $ilDB->unlockTables();
                
                // #9982 - to make getItem()-cache work
                $a_item["obj_id"] = $a_ref_id;
                $a_item["parent_id"] = $parent_id;
        
                return $a_item;
        }
                
        public static function deleteAllEntries($a_ref_id)
        {
                global $ilDB;
                
                if(!$a_ref_id)
                {
                        return;
                }
                
                $query = "DELETE FROM crs_items ".
                        "WHERE obj_id = ".$ilDB->quote($a_ref_id,'integer');
                $ilDB->manipulate($query);
                
                $query = "DELETE FROM crs_items ".
                        "WHERE parent_id = ".$ilDB->quote($a_ref_id,'integer');
                $ilDB->manipulate($query);              

                return true;
        }
        
        public static function cloneDependencies($a_ref_id,$a_target_id,$a_copy_id)
        {
                global $ilLog;
                
                $ilLog->write(__METHOD__.': Begin course items...');
                                
                $items = self::getItems($a_ref_id);             
                if(!$items)
                {
                        $ilLog->write(__METHOD__.': No course items found.');
                        return true;
                }
                
                // new course item object
                if(!is_object($new_container = ilObjectFactory::getInstanceByRefId($a_target_id,false)))
                {
                        $ilLog->write(__METHOD__.': Cannot create target object.');
                        return false;
                }
                
                include_once('Services/CopyWizard/classes/class.ilCopyWizardOptions.php');
                $cp_options = ilCopyWizardOptions::_getInstance($a_copy_id);
                $mappings = $cp_options->getMappings();                         
                         
                foreach($items as $item)
                {
                        if(!isset($mappings[$item['parent_id']]) or !$mappings[$item['parent_id']])
                        {
                                $ilLog->write(__METHOD__.': No mapping for parent nr. '.$item['parent_id']);
                                continue;
                        }
                        if(!isset($mappings[$item['obj_id']]) or !$mappings[$item['obj_id']])
                        {
                                $ilLog->write(__METHOD__.': No mapping for item nr. '.$item['obj_id']);
                                continue;
                        }                       
                        $new_item_id = $mappings[$item['obj_id']];
                        $new_parent = $mappings[$item['parent_id']];
                        
                        $new_item = new self();
                        $new_item->setTimingType($item['timing_type']);
                        $new_item->setTimingStart($item['timing_start']);
                        $new_item->setTimingEnd($item['timing_end']);
                        $new_item->setSuggestionStart($item['suggestion_start']);
                        $new_item->setSuggestionEnd($item['suggestion_end']);
                        $new_item->toggleChangeable($item['changeable']);
                        $new_item->setEarliestStart($item['earliest_start']);
                        $new_item->setLatestEnd($item['latest_end']);
                        $new_item->toggleVisible($item['visible']);
                        $new_item->update($new_item_id, $new_parent);
                        
                        $ilLog->write(__METHOD__.': Added new entry for item nr. '.$item['obj_id']);
                }
                $ilLog->write(__METHOD__.': Finished course items.');
        }
        
        
        //
        // TIMINGS VIEW RELATED (COURSE ONLY)
        //      
        
        public static function hasTimings($a_ref_id)
        {
                global $tree, $ilDB;

                $subtree = $tree->getSubTree($tree->getNodeData($a_ref_id));
                $ref_ids = array();
                foreach($subtree as $node)
                {
                        $ref_ids[] = $node['ref_id'];
                }

                $query = "SELECT * FROM crs_items ".
                        "WHERE timing_type = ".$ilDB->quote(self::TIMINGS_PRESETTING,'integer')." ".
                        "AND ".$ilDB->in('obj_id',$ref_ids,false,'integer');
                $res = $ilDB->query($query);
                return $res->numRows() ? true :false;
        }

        public static function hasChangeableTimings($a_ref_id)
        {
                global $tree, $ilDB;

                $subtree = $tree->getSubTree($tree->getNodeData($a_ref_id));
                $ref_ids = array();
                foreach($subtree as $node)
                {
                        $ref_ids[] = $node['ref_id'];
                }

                $query = "SELECT * FROM crs_items ".
                        "WHERE timing_type = ".$ilDB->quote(self::TIMINGS_PRESETTING,'integer')." ".
                        "AND changeable = ".$ilDB->quote(1,'integer')." ".
                        "AND ".$ilDB->in('obj_id',$ref_ids,false,'integer');
                $res = $ilDB->query($query);
                return $res->numRows() ? true : false;
        }                       
        
        protected static function processListItems(array $a_ref_ids)
        {
                global $tree;
                
                $res = array();
                
                foreach($a_ref_ids as $item_ref_id)
                {                       
                        if($tree->isDeleted($item_ref_id))
                        {
                                continue;
                        }
                        // #7571: when node is removed from system, e.g. inactive trashcan, an empty array is returned
                        $node = $tree->getNodeData($item_ref_id);
                        if($node["ref_id"] != $item_ref_id)
                        {
                                continue;
                        }                       
                        $res[$item_ref_id] = $node;
                }
                                        
                if(sizeof($res))
                {                       
                        self::preloadData(array_keys($res));                    
                        foreach($res as $idx => $item)
                        {
                                self::addAdditionalSubItemInformation($item);
                                $res[$idx] = $item;
                        }                       
                }
                
                return array_values($res);
        }

        public static function getItemsByEvent($a_event_id)
        {               
                include_once 'Modules/Session/classes/class.ilEventItems.php';
                $event_items = new ilEventItems($a_event_id);           
                return self::processListItems($event_items->getItems());
        }
                
        public static function getItemsByItemGroup($a_item_group_ref_id)
        {               
                include_once 'Modules/ItemGroup/classes/class.ilItemGroupItems.php';
                $ig_items = new ilItemGroupItems($a_item_group_ref_id);
                $items = $ig_items->getValidItems();
                return self::processListItems($items);
        }
                
        public static function getItemsByObjective($a_objective_id)
        {
                include_once('./Modules/Course/classes/class.ilCourseObjectiveMaterials.php');
                $item_ids = ilCourseObjectiveMaterials::_getAssignedMaterials($a_objective_id);
                return self::processListItems($item_ids);               
        }
        
        public static function getItems($a_parent_id, $a_with_list_data = true)
        {
                global $tree;
                
                $items = array();       
                
                $ref_ids = array();
                foreach($tree->getChilds($a_parent_id) as $item)
                {                       
                        if($item['type'] != 'rolf')
                        {
                                $items[] = $item;
                                $ref_ids[] = $item['ref_id'];
                        }
                }
                
                if($ref_ids)
                {
                        self::preloadData($ref_ids);
                        
                        foreach($items as $idx => $item)
                        {                               
                                if(!$a_with_list_data)
                                {
                                        $items[$idx] = array_merge($item, self::getItem($item['ref_id']));
                                }
                                else
                                {
                                        self::addAdditionalSubItemInformation($item);
                                        $items[$idx] = $item;
                                }
                        }
                }
                
                return $items;
        }
        
        public static function getTimingsAdministrationItems($a_parent_id)
        {               
                $items = self::getItems($a_parent_id, false);
                
                if($items)
                {                       
                        $active = $inactive = array();
                        foreach($items as $item)
                        {                                                               
                                // active should be first in order
                                if($item['timing_type'] == self::TIMINGS_DEACTIVATED)
                                {
                                        $inactive[] = $item;
                                }
                                else
                                {
                                        $active[] = $item;
                                }
                        }
                        
                        $active = ilUtil::sortArray($active,'start','asc');
                        $inactive = ilUtil::sortArray($inactive,'title','asc');                         
                        $items = array_merge($active,$inactive);
                }
                
                return $items;          
        }
        
        public static function getTimingsItems($a_container_ref_id)
        {
                global $objDefinition;
                
                $filtered = array();
                
                include_once 'Modules/Session/classes/class.ilEventItems.php';
                $event_items = ilEventItems::_getItemsOfContainer($a_container_ref_id);
                foreach(self::getTimingsAdministrationItems($a_container_ref_id) as $item)
                {
                        if(!in_array($item['ref_id'],$event_items) &&
                                !$objDefinition->isSideBlock($item['type']))
                        {
                                $filtered[] = $item;
                        }
                }
                
                return $filtered;
        }       
}       
        
?>