class.assFlashQuestion.php

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<?php

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

include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
include_once "./Modules/Test/classes/inc.AssessmentConstants.php";

class assFlashQuestion extends assQuestion
{
        private $width;
        private $height;
        private $parameters;
        private $applet;

        function __construct(
                $title = "",
                $comment = "",
                $author = "",
                $owner = -1,
                $question = ""
        )
        {
                parent::__construct($title, $comment, $author, $owner, $question);
                $this->parameters = array();
                $this->width = 540;
                $this->height = 400;
                $this->applet = "";
        }
        
        function isComplete()
        {
                if (strlen($this->title) and ($this->author) and ($this->question) and ($this->getMaximumPoints() > 0) and (strlen($this->getApplet())))
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function saveToDb($original_id = "")
        {
                global $ilDB, $ilLog;

                $this->saveQuestionDataToDb($original_id);

                // save additional data
                $affectedRows = $ilDB->manipulateF("DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s", 
                        array("integer"),
                        array($this->getId())
                );
                $affectedRows = $ilDB->manipulateF("INSERT INTO " . $this->getAdditionalTableName() . " (question_fi, width, height, applet, params) VALUES (%s, %s, %s, %s, %s)", 
                        array("integer", "integer", "integer", "text", "text"),
                        array(
                                $this->getId(),
                                (strlen($this->getWidth())) ? $this->getWidth() : 550,
                                (strlen($this->getHeight())) ? $this->getHeight() : 400,
                                $this->getApplet(),
                                serialize($this->getParameters())
                        )
                );
                if ($_SESSION["flash_upload_filename"])
                {
                        $path = $this->getFlashPath();
                        ilUtil::makeDirParents($path);
                        @rename($_SESSION["flash_upload_filename"], $path . $this->getApplet());
                        unset($_SESSION["flash_upload_filename"]);
                }

                parent::saveToDb();
        }

        function loadFromDb($question_id)
        {
                global $ilDB;
                $result = $ilDB->queryF("SELECT qpl_questions.*, " . $this->getAdditionalTableName() . ".* FROM qpl_questions LEFT JOIN " . $this->getAdditionalTableName() . " ON " . $this->getAdditionalTableName() . ".question_fi = qpl_questions.question_id WHERE qpl_questions.question_id = %s",
                        array("integer"),
                        array($question_id)
                );
                if ($result->numRows() == 1)
                {
                        $data = $ilDB->fetchAssoc($result);
                        $this->setId($question_id);
                        $this->setNrOfTries($data['nr_of_tries']);
                        $this->setTitle($data["title"]);
                        $this->setComment($data["description"]);
                        $this->setSuggestedSolution($data["solution_hint"]);
                        $this->setOriginalId($data["original_id"]);
                        $this->setObjId($data["obj_fi"]);
                        $this->setAuthor($data["author"]);
                        $this->setOwner($data["owner"]);
                        $this->setPoints($data["points"]);

                        include_once("./Services/RTE/classes/class.ilRTE.php");
                        $this->setQuestion(ilRTE::_replaceMediaObjectImageSrc($data["question_text"], 1));
                        $this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
                        // load additional data
                        $result = $ilDB->queryF("SELECT * FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
                                array("integer"),
                                array($question_id)
                        );
                        if ($result->numRows() == 1)
                        {
                                $data = $ilDB->fetchAssoc($result);
                                $this->setWidth($data["width"]);
                                $this->setHeight($data["height"]);
                                $this->setApplet($data["applet"]);
                                $this->parameters = unserialize($data["params"]);
                                if (!is_array($this->parameters)) $this->clearParameters();
                                unset($_SESSION["flash_upload_filename"]);
                        }
                }
                parent::loadFromDb($question_id);
        }

        function duplicate($for_test = true, $title = "", $author = "", $owner = "", $testObjId = null)
        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }
                // duplicate the question in database
                $this_id = $this->getId();
                
                if( (int)$testObjId > 0 )
                {
                        $thisObjId = $this->getObjId();
                }
                
                $clone = $this;
                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                
                if( (int)$testObjId > 0 )
                {
                        $clone->setObjId($testObjId);
                }
                
                if ($title)
                {
                        $clone->setTitle($title);
                }

                if ($author)
                {
                        $clone->setAuthor($author);
                }
                if ($owner)
                {
                        $clone->setOwner($owner);
                }

                if ($for_test)
                {
                        $clone->saveToDb($original_id);
                }
                else
                {
                        $clone->saveToDb();
                }

                // copy question page content
                $clone->copyPageOfQuestion($this_id);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($this_id);
                // duplicate the generic feedback
                $clone->duplicateGenericFeedback($this_id);
                // duplicate the applet
                $clone->duplicateApplet($this_id, $thisObjId);

                $clone->onDuplicate($thisObjId, $this_id, $clone->getObjId(), $clone->getId());
                
                return $clone->id;
        }

        function copyObject($target_questionpool, $title = "")
        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }
                // duplicate the question in database
                $clone = $this;
                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                $source_questionpool = $this->getObjId();
                $clone->setObjId($target_questionpool);
                if ($title)
                {
                        $clone->setTitle($title);
                }
                $clone->saveToDb();

                // copy question page content
                $clone->copyPageOfQuestion($original_id);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($original_id);
                // duplicate the generic feedback
                $clone->duplicateGenericFeedback($original_id);

                // duplicate the applet
                $clone->copyApplet($original_id, $source_questionpool);
                $clone->onCopy($this->getObjId(), $this->getId());

                return $clone->id;
        }

        protected function duplicateApplet($question_id, $objectId = null)
        {
                $flashpath = $this->getFlashPath();
                $flashpath_original = preg_replace("/([^\d])$this->id([^\d])/", "\${1}$question_id\${2}", $flashpath);
                
                if( (int)$objectId > 0 )
                {
                        $flashpath_original = str_replace("/$this->obj_id/", "/$objectId/", $flashpath_original);
                }
                
                if (!file_exists($flashpath))
                {
                        ilUtil::makeDirParents($flashpath);
                }
                $filename = $this->getApplet();
                if (!copy($flashpath_original . $filename, $flashpath . $filename)) {
                        print "flash applet could not be duplicated!!!! ";
                }
        }

        protected function copyApplet($question_id, $source_questionpool)
        {
                $flashpath = $this->getFlashPath();
                $flashpath_original = preg_replace("/([^\d])$this->id([^\d])/", "\${1}$question_id\${2}", $flashpath);
                $flashpath_original = str_replace("/$this->obj_id/", "/$source_questionpool/", $flashpath_original);
                if (!file_exists($flashpath))
                {
                        ilUtil::makeDirParents($flashpath);
                }
                $filename = $this->getApplet();
                if (!copy($flashpath_original . $filename, $flashpath . $filename)) 
                {
                        print "flash applet could not be copied!!!! ";
                }
        }

        function getMaximumPoints()
        {
                return $this->points;
        }

        public function calculateReachedPoints($active_id, $pass = NULL, $returndetails = FALSE)
        {
                if( $returndetails )
                {
                        throw new ilTestException('return details not implemented for '.__METHOD__);
                }
                
                global $ilDB;
                
                $found_values = array();
                if (is_null($pass))
                {
                        $pass = $this->getSolutionMaxPass($active_id);
                }
                $result = $ilDB->queryF("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        array("integer", "integer", "integer"),
                        array($active_id, $this->getId(), $pass)
                );

                $points = 0;
                while ($data = $ilDB->fetchAssoc($result))
                {
                        $points += $data["points"];
                }

                return $points;
        }
        
        function sendToHost($url, $data, $optional_headers = null)
        {
                $params = array('http' => array(
                        'method' => 'POST',
                        'content' => $data
                ));
                if ($optional_headers !== null) 
                {
                        $params['http']['header'] = $optional_headers;
                }
                $ctx = stream_context_create($params);
                $fp = @fopen($url, 'rb', false, $ctx);
                if (!$fp) 
                {
                        throw new Exception("Problem with $url, $php_errormsg");
                }
                $response = @stream_get_contents($fp);
                if ($response === false) 
                {
                        throw new Exception("Problem reading data from $url, $php_errormsg");
                }
                return $response;
        }
        
        function moveUploadedFile($tmpfile, $flashfile)
        {
                $result = "";
                if (!empty($tmpfile))
                {
                        $flashfile = str_replace(" ", "_", $flashfile);
                        $flashpath = $this->getFlashPath();
                        if (!file_exists($flashpath))
                        {
                                ilUtil::makeDirParents($flashpath);
                        }
                        if (ilUtil::moveUploadedFile($tmpfile, $flashfile, $flashpath.$flashfile))
                        {
                                $result = $flashfile;
                        }
                }
                return $result;
        }

        function deleteApplet()
        {
                @unlink($this->getFlashPath() . $this->getApplet());
                $this->applet = "";
        }
        
        public function saveWorkingData($active_id, $pass = NULL)
        {
                // nothing to save!
                
                return true;
        }

        protected function reworkWorkingData($active_id, $pass, $obligationsAnswered)
        {
                // nothing to rework!
        }

        function getQuestionType()
        {
                return "assFlashQuestion";
        }
        
        function getAdditionalTableName()
        {
                return "qpl_qst_flash";
        }
        
        function getAnswerTableName()
        {
                return "";
        }
        
        function deleteAnswers($question_id)
        {
        }

        function getRTETextWithMediaObjects()
        {
                $text = parent::getRTETextWithMediaObjects();
                return $text;
        }

        public function setExportDetailsXLS(&$worksheet, $startrow, $active_id, $pass, &$format_title, &$format_bold)
        {
                include_once ("./Services/Excel/classes/class.ilExcelUtils.php");
                $worksheet->writeString($startrow, 0, ilExcelUtils::_convert_text($this->lng->txt($this->getQuestionType())), $format_title);
                $worksheet->writeString($startrow, 1, ilExcelUtils::_convert_text($this->getTitle()), $format_title);
                return $startrow + 1;
        }
        
        function fromXML(&$item, &$questionpool_id, &$tst_id, &$tst_object, &$question_counter, &$import_mapping)
        {
                include_once "./Modules/TestQuestionPool/classes/import/qti12/class.assFlashQuestionImport.php";
                $import = new assFlashQuestionImport($this);
                $import->fromXML($item, $questionpool_id, $tst_id, $tst_object, $question_counter, $import_mapping);
        }
        
        function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle = false, $test_output = false, $force_image_references = false)
        {
                include_once "./Modules/TestQuestionPool/classes/export/qti12/class.assFlashQuestionExport.php";
                $export = new assFlashQuestionExport($this);
                return $export->toXML($a_include_header, $a_include_binary, $a_shuffle, $test_output, $force_image_references);
        }

        public function getBestSolution($active_id, $pass)
        {
                $user_solution = array();
                return $user_solution;
        }
        
        public function setHeight($a_height)
        {
                if (!$a_height) $a_height = 400;
                $this->height = $a_height;
        }
        
        public function getHeight()
        {
                return $this->height;
        }

        public function setWidth($a_width)
        {
                if (!$a_width) $a_width = 550;
                $this->width = $a_width;
        }
        
        public function getWidth()
        {
                return $this->width;
        }
        
        public function setApplet($a_applet)
        {
                $this->applet = $a_applet;
        }
        
        public function getApplet()
        {
                return $this->applet;
        }
        
        public function addParameter($name, $value)
        {
                $this->parameters[$name] = $value;
        }
        
        public function setParameters($params)
        {
                if (is_array($params))
                {
                        $this->parameters = $params;
                }
                else
                {
                        $this->parameters = array();
                }
        }
        
        public function removeParameter($name)
        {
                unset($this->parameters[$name]);
        }
        
        public function clearParameters()
        {
                $this->parameters = array();
        }
        
        public function getParameters()
        {
                return $this->parameters;
        }
        
        public function isAutosaveable()
        {
                return FALSE;
        }
}

?>