class.ilContainerStartObjects.php

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

class ilContainerStartObjects
{       
        protected $ref_id;
        protected $obj_id;
        protected $start_objs = array();

        public function __construct($a_object_ref_id, $a_object_id)
        {               
                $this->setRefId($a_object_ref_id);
                $this->setObjId($a_object_id);

                $this->__read();
        }
        
        protected function setObjId($a_id)
        {
                $this->obj_id = $a_id;
        }
        
        public function getObjId()
        {
                return $this->obj_id;
        }
        
        protected function setRefId($a_ref_id)
        {
                $this->ref_id = $a_ref_id;
        }
        
        public function getRefId()
        {
                return $this->ref_id;
        }
        
        public function getStartObjects()
        {
                return $this->start_objs ? $this->start_objs : array();
        }
                
        protected function __read()
        {
                global $tree, $ilDB;

                $this->start_objs = array();

                $query = "SELECT * FROM crs_start".
                        " WHERE crs_id = ".$ilDB->quote($this->getObjId(), 'integer').
                        " ORDER BY pos, crs_start_id";
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {                       
                        if($tree->isInTree($row->item_ref_id))
                        {
                                $this->start_objs[$row->crs_start_id]['item_ref_id'] = $row->item_ref_id;
                        }
                        else
                        {
                                $this->delete($row->item_ref_id);
                        }
                }
                return true;
        }
        
        public function delete($a_crs_start_id)
        {
                global $ilDB;
                
                $query = "DELETE FROM crs_start".
                        " WHERE crs_start_id = ".$ilDB->quote($a_crs_start_id, 'integer').
                        " AND crs_id = ".$ilDB->quote($this->getObjId(), 'integer');
                $ilDB->manipulate($query);
                return true;
        }
        
        public function deleteItem($a_item_ref_id)
        {
                global $ilDB;
                
                $query = "DELETE FROM crs_start".
                        " WHERE crs_id = ".$ilDB->quote($this->getObjId(), 'integer').
                        " AND item_ref_id = ".$ilDB->quote($a_item_ref_id, 'integer');
                $ilDB->manipulate($query);
                return true;
        }

        public function exists($a_item_ref_id)
        {
                global $ilDB;
                
                $query = "SELECT * FROM crs_start".
                        " WHERE crs_id = ".$ilDB->quote($this->getObjId(), 'integer').
                        " AND item_ref_id = ".$ilDB->quote($a_item_ref_id, 'integer');
                $res = $ilDB->query($query);

                return $res->numRows() ? true : false;
        }

        public function add($a_item_ref_id)
        {
                global $ilDB;
                
                if($a_item_ref_id)
                {
                        $max_pos = $ilDB->query("SELECT max(pos) pos FROM crs_start".
                                " WHERE crs_id = ".$ilDB->quote($this->getObjId(), "integer"));
                        $max_pos = $ilDB->fetchAssoc($max_pos);
                        $max_pos = ((int)$max_pos["pos"])+10;
                        
                        $next_id = $ilDB->nextId('crs_start');
                        $query = "INSERT INTO crs_start".
                                " (crs_start_id,crs_id,item_ref_id,pos)".
                                " VALUES".
                                " (".$ilDB->quote($next_id, 'integer').
                                ", ".$ilDB->quote($this->getObjId(), 'integer').
                                ", ".$ilDB->quote($a_item_ref_id, 'integer').
                                ", ".$ilDB->quote($max_pos, 'integer').
                                ")";
                        $ilDB->manipulate($query);
                        return true;
                }
                return false;
        }

        public function __deleteAll()
        {
                global $ilDB;
                
                $query = "DELETE FROM crs_start".
                        " WHERE crs_id = ".$ilDB->quote($this->getObjId(), 'integer');
                $ilDB->manipulate($query);
                return true;
        }
                
        public function setObjectPos($a_start_id, $a_pos)
        {
                global $ilDB;
                
                if(!(int)$a_start_id || !(int)$a_pos)
                {
                        return;
                }
                
                $ilDB->manipulate("UPDATE crs_start".
                        " SET pos = ".$ilDB->quote($a_pos, "integer").
                        " WHERE crs_id = ".$ilDB->quote($this->getObjId(), 'integer').
                        " AND crs_start_id = ".$ilDB->quote($a_start_id, 'integer'));
        }

        public function getPossibleStarters()
        {
                include_once "Services/Object/classes/class.ilObjectActivation.php";
                foreach(ilObjectActivation::getItems($this->getRefId(), false) as $node)
                {
                        switch($node['type'])
                        {
                                case 'lm':
                                case 'sahs':
                                case 'svy':
                                case 'tst':
                                        $poss_items[] = $node['ref_id'];
                                        break;
                        }
                }
                return $poss_items ? $poss_items : array();
        }       

        public function allFullfilled($a_user_id)
        {
                foreach($this->getStartObjects() as $item)
                {
                        if(!$this->isFullfilled($a_user_id, $item['item_ref_id']))
                        {
                                return false;
                        }
                }
                return true;
        }

        public function isFullfilled($a_user_id, $a_item_id)
        {
                global $ilObjDataCache;

                $obj_id = $ilObjDataCache->lookupObjId($a_item_id);
                $type = $ilObjDataCache->lookupType($obj_id);
                
                switch($type)
                {
                        case 'tst':
                                include_once './Modules/Test/classes/class.ilObjTestAccess.php';                                
                                if(!ilObjTestAccess::checkCondition($obj_id,'finished','',$a_user_id)) // #14000
                                {
                                        return false;
                                }
                                break;
                                
                        case 'svy':
                                
                                include_once './Modules/Survey/classes/class.ilObjSurveyAccess.php';
                                if(!ilObjSurveyAccess::_lookupFinished($obj_id, $a_user_id))
                                {
                                        return false;
                                }
                                break;
                                
                        case 'sahs':
                                include_once 'Services/Tracking/classes/class.ilLPStatus.php';
                                if(!ilLPStatus::_hasUserCompleted($obj_id, $a_user_id))
                                {
                                        return false;
                                }
                                break;

                        default:                                
                                include_once './Modules/Course/classes/class.ilCourseLMHistory.php';
                                $lm_continue = new ilCourseLMHistory($this->getRefId(), $a_user_id);
                                $continue_data = $lm_continue->getLMHistory();
                                if(!isset($continue_data[$a_item_id]))
                                {
                                        return false;
                                }
                                break;
                }
                
                return true;
        }
                
        public function cloneDependencies($a_target_id, $a_copy_id)
        {
                global $ilObjDataCache, $ilLog;
                
                $ilLog->write(__METHOD__.': Begin course start objects...');
                
                $new_obj_id = $ilObjDataCache->lookupObjId($a_target_id);
                $start = new self($a_target_id, $new_obj_id);
                
                include_once('Services/CopyWizard/classes/class.ilCopyWizardOptions.php');
                $cwo = ilCopyWizardOptions::_getInstance($a_copy_id);
                $mappings = $cwo->getMappings();
                foreach($this->getStartObjects() as $data)
                {
                        $item_ref_id = $data['item_ref_id'];
                        if(isset($mappings[$item_ref_id]) and $mappings[$item_ref_id])
                        {
                                $ilLog->write(__METHOD__.': Clone start object nr. '.$item_ref_id);
                                $start->add($mappings[$item_ref_id]);
                        }
                        else
                        {
                                $ilLog->write(__METHOD__.': No mapping found for start object nr. '.$item_ref_id);
                        }
                }
                $ilLog->write(__METHOD__.': ... end course start objects');
                return true;
        }
        
        public static function isStartObject($a_container_id, $a_item_ref_id)
        {
                global $ilDB;
                
                $query = 'SELECT crs_start_id FROM crs_start '.
                        'WHERE crs_id = '.$ilDB->quote($a_container_id,'integer').' '.
                        'AND item_ref_id = '.$ilDB->quote($a_item_ref_id,'integer');
                $res = $ilDB->query($query);
                if($res->numRows() >= 1)
                {
                        return true;
                }
                return false;
        }
        
} 

?>