class.ilECSImport.php

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

class ilECSImport
{
        protected $db = null;

        protected $server_id = 0;
        protected $obj_id = 0;
        protected $econtent_id = 0;
        protected $content_id = '';
        protected $sub_id = null;
        protected $mid = 0;
        protected $imported = false; 
        protected $ecs_id = 0;

        public function __construct($a_server_id,$a_obj_id)
        {
                global $ilDB;

                $this->server_id = $a_server_id;
                $this->obj_id = $a_obj_id;
                $this->db = $ilDB;
                $this->read();
        }
        
        public static function lookupContentId($a_server_id, $a_mid, $a_econtent_id)
        {
                global $ilDB;
                
                $query = 'SELECT * from ecs_import '.
                                'WHERE server_id = '.$ilDB->quote($a_server_id,'integer').' '.
                                'AND mid = '.$ilDB->quote($a_mid,'integer').' '.
                                'AND econtent_id = '.$ilDB->quote($a_econtent_id,'text');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->content_id;
                }
                return '';
        }
        
        public static function lookupObjIdByContentId($a_server_id, $a_mid, $a_content_id, $a_sub_id = null)
        {
                global $ilDB;
                
                $query = "SELECT obj_id FROM ecs_import ".
                        "WHERE content_id = ".$ilDB->quote($a_content_id,'integer')." ".
                        "AND mid = ".$ilDB->quote($a_mid,'integer')." ".
                        'AND server_id = '.$ilDB->quote($a_server_id,'integer').' ';
                
                if(!is_null($a_sub_id))
                {
                        $query .= 'AND sub_id = '.$ilDB->quote($a_sub_id,'text');
                }
                else
                {
                        $query .= 'AND sub_id IS NULL';
                }
                $res = $ilDB->query($query);
                
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->obj_id;
                }       
                return 0;
                
        }
        
        public static function lookupObjIdsByContentId($a_content_id)
        {
                global $ilDB;
                
                $query = "SELECT obj_id FROM ecs_import ".
                        "WHERE content_id = ".$ilDB->quote($a_content_id,'integer');
                
                $res = $ilDB->query($query);
                
                $obj_ids = array();
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $obj_ids[] = $row->obj_id;
                }       
                return  $obj_ids;
        }


        public static function lookupEContentIdByContentId($a_server_id,$a_mid,$a_content_id)
        {
                global $ilDB;
                
                $query = 'SELECT * from ecs_import '.
                                'WHERE server_id = '.$ilDB->quote($a_server_id,'integer').' '.
                                'AND mid = '.$ilDB->quote($a_mid,'integer').' '.
                                'AND content_id = '.$ilDB->quote($a_content_id,'text');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->econtent_id;
                }
                return 0;
        }
        
        public static function getAllImportedRemoteObjects($a_server_id)
        {
                global $ilDB;
                
                include_once './Services/WebServices/ECS/classes/class.ilECSUtils.php';
                
                $query = "SELECT * FROM ecs_import ei JOIN object_data obd ON ei.obj_id = obd.obj_id ".
                        'WHERE server_id = '.$ilDB->quote($a_server_id).' '.
                        'AND '.$ilDB->in('type',  ilECSUtils::getPossibleRemoteTypes(), false, 'text');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $all[$row->econtent_id] = $row->obj_id;
                }
                
                return $all ? $all : array();
        }
        
        public static function _lookupObjIdsByMID($a_server_id,$a_mid)
        {
                global $ilDB;
                
                $query = "SELECT * FROM ecs_import ".
                        "WHERE mid = ".$ilDB->quote($a_mid,'integer')." ".
                        'AND server_id = '.$ilDB->quote($a_server_id,'integer');

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $obj_ids[] = $row->obj_id;
                }
                return $obj_ids ? $obj_ids : array();
        }
        
        public static function _lookupEContentId($a_obj_id)
        {
                global $ilDB;
                
                $query = "SELECT * FROM ecs_import WHERE obj_id = ".$ilDB->quote($a_obj_id,'integer')." ";
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->econtent_id;
                }
                return 0;
        }

        public static function lookupServerId($a_obj_id)
        {
                global $ilDB;

                $query = 'SELECT * FROM ecs_import WHERE obj_id = '.$ilDB->quote($a_obj_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->server_id;
                }
                return 0;
        }


        public static function _lookupObjIds($a_server_id,$a_econtent_id)
        {
                global $ilDB;
                
                $query = "SELECT obj_id FROM ecs_import WHERE econtent_id  = ".$ilDB->quote($a_econtent_id,'text')." ".
                        'AND server_id = '.$ilDB->quote($a_server_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $obj_ids[] = $row->obj_id;
                }
                return $obj_ids ? $obj_ids : array();
        }
        
        public static function _lookupObjId($a_server_id,$a_econtent_id,$a_mid, $a_sub_id = null)
        {
                global $ilDB;
                
                $query = "SELECT obj_id FROM ecs_import ".
                        "WHERE econtent_id = ".$ilDB->quote($a_econtent_id,'text')." ".
                        "AND mid = ".$ilDB->quote($a_mid,'integer')." ".
                        'AND server_id = '.$ilDB->quote($a_server_id,'integer').' ';
                
                if(!is_null($a_sub_id))
                {
                        $query .= 'AND sub_id = '.$ilDB->quote($a_sub_id,'text');
                }
                else
                {
                        $query .= 'AND sub_id IS NULL';
                }
                $res = $ilDB->query($query);
                
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->obj_id;
                }       
                return 0;
        }
        
        public static function _lookupMID($a_server_id,$a_obj_id)
        {
                global $ilDB;
                
                $query = "SELECT * FROM ecs_emport WHERE obj_id = ".$ilDB->quote($a_obj_id)." ".
                        'AND server_id = '.$ilDB->quote($a_server_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        return $row->mid;
                }
                return 0;
                
        }
        
        public static function _lookupMIDs($a_server_id,$a_econtent_id)
        {
                global $ilDB;
                
                $query = "SELECT mid FROM ecs_import WHERE econtent_id = ".$ilDB->quote($a_econtent_id,'text')." ".
                        'AND server_id = '.$ilDB->quote($a_server_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $mids[] = $row->mid;
                }
                return $mids ? $mids : array();
        }
        
        public static function _deleteByObjId($a_obj_id)
        {
                global $ilDB;
                
                $query = "DELETE FROM ecs_import ".
                        "WHERE obj_id = ".$ilDB->quote($a_obj_id,'integer')." ";
                $res = $ilDB->manipulate($query);
                return true;
        }

        public static function deleteByServer($a_server_id)
        {
                global $ilDB;

                $query = 'DELETE FROM ecs_import '.
                        'WHERE server_id = '.$ilDB->quote($a_server_id,'integer');
                $ilDB->manipulate($query);
        }
        
        public static function deleteRessources($a_server_id, $a_mid, $a_econtent_ids)
        {
                global $ilDB;
                
                $query = 'DELETE FROM ecs_import '.
                                'WHERE server_id = '.$ilDB->quote($a_server_id,'integer'). ' '.
                                'AND mid = '.$ilDB->quote($a_mid,'integer').' '.
                                'AND '.$ilDB->in('econtent_id',(array) $a_econtent_ids,false,'text');
                $ilDB->manipulate($query);
                return true;
        }

        
        
        public static function _isImported($a_server_id,$a_econtent_id,$a_mid, $a_sub_id = null)
        {
                return ilECSImport::_lookupObjId($a_server_id,$a_econtent_id,$a_mid, $a_sub_id);
        }
        
        public function setServerId($a_server_id)
        {
                $this->server_id = $a_server_id;
        }

        public function getServerId()
        {
                return $this->server_id;
        }
        
        public function setImported($a_status)
        {
                $this->imported = $a_status;
        }
        
        public function setSubId($a_id)
        {
                $this->sub_id = $a_id;
        }
        
        public function getSubId()
        {
                return strlen($this->sub_id) ? $this->sub_id : NULL;
        }
        
        public function setContentId($a_content_id)
        {
                $this->content_id = $a_content_id;
        }
        
        public function getContentId()
        {
                return $this->content_id;
        }
        
        public function setMID($a_mid)
        {
                $this->mid = $a_mid;
        }
        
        public function getMID()
        {
                return $this->mid;
        }
        
        public function setEContentId($a_id)
        {
                $this->econtent_id = $a_id;
        }
        
        public function getEContentId()
        {
                return $this->econtent_id;
        }
        
        public function save()
        {
                global $ilDB;
                
                $query = "DELETE FROM ecs_import ".
                        "WHERE obj_id = ".$this->db->quote($this->obj_id,'integer')." ".
                        'AND server_id = '.$ilDB->quote($this->getServerId(),'integer');
                $res = $ilDB->manipulate($query);
                
                $query = "INSERT INTO ecs_import (obj_id,mid,econtent_id,sub_id,server_id,content_id) ".
                        "VALUES ( ".
                        $this->db->quote($this->obj_id,'integer').", ".
                        $this->db->quote($this->mid,'integer').", ".
                        $this->db->quote($this->econtent_id,'text').", ".
                        $this->db->quote($this->getSubId(),'text'). ', '.
                        $this->db->quote($this->getServerId(),'integer').', '.
                        $this->db->quote($this->getContentId(),'text').' '.
                        ")";
                
                $res = $ilDB->manipulate($query);
                
                return true;
        }
        
        private function read()
        {
                global $ilDB;
                
                $query = "SELECT * FROM ecs_import WHERE ".
                        "obj_id = ".$this->db->quote($this->obj_id,'integer')." ".
                        'AND server_id = '.$ilDB->quote($this->getServerId(),'integer');
                $res = $this->db->query($query);
                while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
                {
                        $this->econtent_id = $row->econtent_id;
                        $this->mid = $row->mid;
                        $this->sub_id = $row->sub_id;
                        $this->content_id = $row->content_id;
                }
        }
        
        public static function resetServerId($a_server_id)
        {
                global $ilDB;

                $query = 'UPDATE ecs_import SET server_id = '.$ilDB->quote(0,'integer').
                        ' WHERE server_id = '.$ilDB->quote($a_server_id,'integer');
                $ilDB->manipulate($query);
                return true;
        }
        
        
        public function setECSId($a_id)
        {
                $this->ecs_id = $a_id;
        }
}
?>