class.ilLORandomTestQuestionPools.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
 
 
include_once './Modules/Course/classes/Objectives/class.ilLOSettings.php';
 
class ilLORandomTestQuestionPools
{
        protected $container_id = 0;
        protected $objective_id = 0;
        protected $test_type = 0;
        protected $test_id = 0;
        protected $qpl_seq = 0;
        protected $limit = 50;
        
 
        public function __construct($a_container_id, $a_objective_id, $a_test_type)
        {
                $this->container_id = $a_container_id;
                $this->objective_id = $a_objective_id;
                $this->test_type = $a_test_type;
                
                $this->read();
        }
        
        public static function lookupLimit($a_container_id, $a_objective_id, $a_test_type)
        {
                global $ilDB;
                
                $query = 'SELECT * FROM loc_rnd_qpl '.
                                'WHERE container_id = '.$ilDB->quote($a_container_id,'integer').' '.
                                'AND objective_id = '.$ilDB->quote($a_objective_id,'integer').' '.
                                'AND tst_type = '.$ilDB->quote($a_test_type,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->percentage;
                }
                return 0;
        }
        
        public static function lookupSequence($a_container_id, $a_objective_id, $a_test_id)
        {
                global $ilDB;
                
                $query = 'SELECT * FROM loc_rnd_qpl '.
                                'WHERE container_id = '.$ilDB->quote($a_container_id,'integer').' '.
                                'AND objective_id = '.$ilDB->quote($a_objective_id,'integer').' '.
                                'AND tst_id = '.$ilDB->quote($a_test_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->qp_seq;
                }
                return 0;
                
        }
        
        public static function lookupObjectiveIdsBySequence($a_container_id, $a_seq_id)
        {
                global $ilDB;
                
                $query = 'SELECT objective_id FROM loc_rnd_qpl '.
                                'WHERE container_id = '.$ilDB->quote($a_container_id,'integer').' '.
                                'AND qp_seq = '.$ilDB->quote($a_seq_id,'integer');
                $res = $ilDB->query($query);
                $objectiveIds = array();
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $objectiveIds[] = $row->objective_id;
                }
                return $objectiveIds;
        }
 
 
        public function setContainerId($a_id)
        {
                $this->container_id = $a_id;
        }
        
        public function getContainerId()
        {
                return $this->container_id;
        }
        
        public function setObjectiveId($a_id)
        {
                $this->objective_id = $a_id;
        }
        
        public function getObjectiveId()
        {
                return $this->objective_id;
        }
        
        public function setTestType($a_type)
        {
                $this->test_type = $a_type;
        }
        
        public function getTestType()
        {
                return $this->test_type;
        }
        
        public function setTestId($a_id)
        {
                $this->test_id = $a_id;
        }
        
        public function getTestId()
        {
                return $this->test_id;
        }
        
        public function setQplSequence($a_id)
        {
                $this->qpl_seq = $a_id;
        }
        
        public function getQplSequence()
        {
                return $this->qpl_seq;
        }
        
        public function setLimit($a_id)
        {
                $this->limit = $a_id;
        }
        
        public function getLimit()
        {
                return $this->limit;
        }
        
        public function copy($a_copy_id, $a_new_course_id, $a_new_objective_id)
        {
                include_once './Services/CopyWizard/classes/class.ilCopyWizardOptions.php';
                $options = ilCopyWizardOptions::_getInstance($a_copy_id);
                $mappings = $options->getMappings();
                
                $new_ass = new self(
                        $a_new_course_id,
                        $a_new_objective_id,
                        $this->getTestType()
                );
                $new_ass->setLimit($this->getLimit());
 
                $mapped_id = 0;
                $test_ref_id = 0;
                foreach((array) ilObject::_getAllReferences($this->getTestId()) as $tmp => $ref_id)
                {
                        ilLoggerFactory::getLogger('crs')->debug($tmp .' ' . $ref_id);
                        $test_ref_id = $ref_id;
                        $mapped_id = $mappings[$ref_id];
                        if($mapped_id)
                        {
                                continue;
                        }
                }
                
                if(!$mapped_id)
                {
                        ilLoggerFactory::getLogger('crs')->debug('No test mapping found for random question pool assignment: ' . $this->getTestId());
                        return FALSE;
                }
                $new_ass->setTestId($mapped_id);
                
                // Mapping for sequence
                $new_question_info = $mappings[$test_ref_id.'_rndSelDef_'.$this->getQplSequence()];
                $new_question_arr = explode('_',$new_question_info);
                if(!isset($new_question_arr[2]) or !$new_question_arr[2])
                {
                        ilLoggerFactory::getLogger('crs')->debug(print_r($mappings,TRUE));
                        ilLoggerFactory::getLogger('crs')->debug('Found invalid or no mapping format of random question id mapping: ' . print_r($new_question_arr,TRUE));
                        return FALSE;
                }
                
                $new_ass->setQplSequence($new_question_arr[2]);
                $new_ass->create();
        }
        
        
        public function read()
        {
                global $ilDB;
                
                $query = 'SELECT * FROM loc_rnd_qpl '.
                                'WHERE container_id = '.$ilDB->quote($this->getContainerId(),'integer').' '.
                                'AND objective_id = '.$ilDB->quote($this->getObjectiveId(),'integer').' '.
                                'AND tst_type = '.$ilDB->quote($this->getTestType(),'integer');
                
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $this->setLimit($row->percentage);
                        $this->setTestId($row->tst_id);
                        $this->setQplSequence($row->qp_seq);
                }
                return true;
        }
        
        public function delete()
        {
                global $ilDB;
 
                $query = 'DELETE FROM loc_rnd_qpl '.
                                'WHERE container_id = '.$ilDB->quote($this->getContainerId(),'integer').' '.
                                'AND objective_id = '.$ilDB->quote($this->getObjectiveId(),'integer').' '.
                                'AND tst_type = '.$ilDB->quote($this->getTestType(),'integer');
                $ilDB->manipulate($query);
        }
        
        public function create()
        {
                global $ilDB;
                
                $query = 'INSERT INTO loc_rnd_qpl ' .
                                '(container_id, objective_id, tst_type, tst_id, qp_seq, percentage) '.
                                'VALUES ( '.
                                $ilDB->quote($this->getContainerId(),'integer').', '.
                                $ilDB->quote($this->getObjectiveId(),'integer').', '.
                                $ilDB->quote($this->getTestType(),'integer').', '.
                                $ilDB->quote($this->getTestId(),'integer').', '.
                                $ilDB->quote($this->getQplSequence(),'integer').', '.
                                $ilDB->quote($this->getLimit()).' '.
                                ')';
                $ilDB->manipulate($query);
        }
        
        // begin-patch optes_lok_export
        public static function toXml(ilXmlWriter $writer, $a_objective_id)
        {
                global $ilDB;
                
                $query = 'SELECT * FROM loc_rnd_qpl '.
                        'WHERE objective_id = '.$ilDB->quote($a_objective_id,'integer');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        include_once './Modules/Course/classes/Objectives/class.ilLOXmlWriter.php';
                        $writer->xmlElement(
                                'Test',
                                array(
                                        'type' => ilLOXmlWriter::TYPE_TST_RND,
                                        'objId' => $row->tst_id,
                                        'testType' => $row->tst_type,
                                        'limit' => $row->percentage,
                                        'poolId' => $row->qp_seq
                                )
                        );
                }
        }
        // end-patch optes_lok_export
}
?>