class.ilTestPassesSelector.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */


class ilTestPassesSelector
{
        protected $db;
        
        protected $testOBJ;
        
        private $activeId;
        
        private $lastFinishedPass;
        
        public function __construct(ilDB $db, ilObjTest $testOBJ)
        {
                $this->db = $db;
                $this->testOBJ = $testOBJ;
        }

        public function getActiveId()
        {
                return $this->activeId;
        }

        public function setActiveId($activeId)
        {
                $this->activeId = $activeId;
        }

        public function getLastFinishedPass()
        {
                return $this->lastFinishedPass;
        }

        public function setLastFinishedPass($lastFinishedPass)
        {
                $this->lastFinishedPass = $lastFinishedPass;
        }

        public function getExistingPasses()
        {
                return $this->loadExistingPasses();
        }

        public function getNumExistingPasses()
        {
                return count($this->loadExistingPasses());
        }

        public function getClosedPasses()
        {
                $existingPasses = $this->loadExistingPasses();
                $closedPasses = $this->fetchClosedPasses($existingPasses);

                return $closedPasses;
        }

        public function getReportablePasses()
        {
                $existingPasses = $this->loadExistingPasses();
                $reportablePasses = $this->fetchReportablePasses($existingPasses);

                return $reportablePasses;
        }
        
        private function loadExistingPasses()
        {
                $query = "
                        SELECT DISTINCT tst_pass_result.pass FROM tst_pass_result
                        INNER JOIN tst_test_result
                        ON tst_pass_result.pass = tst_test_result.pass
                        AND tst_pass_result.active_fi = tst_test_result.active_fi
                        WHERE tst_pass_result.active_fi = %s
                ";
                
                $res = $this->db->queryF(
                        $query, array('integer'), array($this->getActiveId())
                );

                $existingPasses = array();
                
                while( $row = $this->db->fetchAssoc($res) )
                {
                        $existingPasses[] = $row['pass'];
                }
                
                return $existingPasses;
        }
        
        private function fetchReportablePasses($existingPasses)
        {
                $lastPass = $this->fetchLastPass($existingPasses);
                
                $reportablePasses = array();
                
                foreach($existingPasses as $pass)
                {
                        if( $this->isReportablePass($lastPass, $pass) )
                        {
                                $reportablePasses[] = $pass;
                        }
                }
                
                return $reportablePasses;
        }
        
        private function fetchClosedPasses($existingPasses)
        {
                $closedPasses = array();
                
                foreach($existingPasses as $pass)
                {
                        if( $this->isClosedPass($pass) )
                        {
                                $closedPasses[] = $pass;
                        }
                }
                
                return $closedPasses;
        }
        
        private function fetchLastPass($existingPasses)
        {
                $lastPass = null;
                
                foreach($existingPasses as $pass)
                {
                        if( $lastPass === null || $pass > $lastPass )
                        {
                                $lastPass = $pass;
                        }
                }
                
                return $lastPass;
        }
        
        private function isReportablePass($lastPass, $pass)
        {
                if($pass < $lastPass)
                {
                        return true;
                }
                
                if( $this->isClosedPass($pass) )
                {
                        return true;
                }
                
                return false;
        }
        
        private function isClosedPass($pass)
        {
                if( $pass <= $this->getLastFinishedPass() )
                {
                        return true;
                }
                
                if( $this->isProcessingTimeReached($pass) )
                {
                        return true;
                }
                
                return false;
        }
        
        private function isProcessingTimeReached($pass)
        {
                if( !$this->testOBJ->getEnableProcessingTime() )
                {
                        return false;
                }
                
                $startingTime = $this->testOBJ->getStartingTimeOfUser($this->getActiveId(), $pass);
                
                if($startingTime === FALSE)
                {
                        return false;
                }

                return $this->testOBJ->isMaxProcessingTimeReached($startingTime, $this->getActiveId());
        }
}