class.assClozeTestExport.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
include_once "./Modules/TestQuestionPool/classes/export/qti12/class.assQuestionExport.php";
 
class assClozeTestExport extends assQuestionExport
{
    public function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle = false, $test_output = false, $force_image_references = false)
    {
        global $ilias;
        
        include_once "./Services/Math/classes/class.EvalMath.php";
        $eval = new EvalMath();
        $eval->suppress_errors = true;
        include_once("./Services/Xml/classes/class.ilXmlWriter.php");
        $a_xml_writer = new ilXmlWriter;
        // set xml header
        $a_xml_writer->xmlHeader();
        $a_xml_writer->xmlStartTag("questestinterop");
        $attrs = array(
            "ident" => "il_" . IL_INST_ID . "_qst_" . $this->object->getId(),
            "title" => $this->object->getTitle(),
            "maxattempts" => $this->object->getNrOfTries()
        );
        $a_xml_writer->xmlStartTag("item", $attrs);
        // add question description
        $a_xml_writer->xmlElement("qticomment", null, $this->object->getComment());
        // add estimated working time
        $workingtime = $this->object->getEstimatedWorkingTime();
        $duration = sprintf("P0Y0M0DT%dH%dM%dS", $workingtime["h"], $workingtime["m"], $workingtime["s"]);
        $a_xml_writer->xmlElement("duration", null, $duration);
        // add ILIAS specific metadata
        $a_xml_writer->xmlStartTag("itemmetadata");
        $a_xml_writer->xmlStartTag("qtimetadata");
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "ILIAS_VERSION");
        $a_xml_writer->xmlElement("fieldentry", null, $ilias->getSetting("ilias_version"));
        $a_xml_writer->xmlEndTag("qtimetadatafield");
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "QUESTIONTYPE");
        $a_xml_writer->xmlElement("fieldentry", null, CLOZE_TEST_IDENTIFIER);
        $a_xml_writer->xmlEndTag("qtimetadatafield");
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "AUTHOR");
        $a_xml_writer->xmlElement("fieldentry", null, $this->object->getAuthor());
        $a_xml_writer->xmlEndTag("qtimetadatafield");
        
        // additional content editing information
        $this->addAdditionalContentEditingModeInformation($a_xml_writer);
        $this->addGeneralMetadata($a_xml_writer);
        
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "textgaprating");
        $a_xml_writer->xmlElement("fieldentry", null, $this->object->getTextgapRating());
        $a_xml_writer->xmlEndTag("qtimetadatafield");
        
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "fixedTextLength");
        $a_xml_writer->xmlElement("fieldentry", null, $this->object->getFixedTextLength());
        $a_xml_writer->xmlEndTag("qtimetadatafield");
        
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "identicalScoring");
        $a_xml_writer->xmlElement("fieldentry", null, $this->object->getIdenticalScoring());
        $a_xml_writer->xmlEndTag("qtimetadatafield");
 
        $a_xml_writer->xmlStartTag("qtimetadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "combinations");
        $a_xml_writer->xmlElement("fieldentry", null, base64_encode(json_encode($this->object->getGapCombinations())));
        $a_xml_writer->xmlEndTag("qtimetadatafield");
        
        $a_xml_writer->xmlEndTag("qtimetadata");
        $a_xml_writer->xmlEndTag("itemmetadata");
        
        // PART I: qti presentation
        $attrs = array(
            "label" => $this->object->getTitle()
        );
        $a_xml_writer->xmlStartTag("presentation", $attrs);
        // add flow to presentation
        $a_xml_writer->xmlStartTag("flow");
        
        $questionText = $this->object->getQuestion() ? $this->object->getQuestion() : '&nbsp;';
        $this->object->addQTIMaterial($a_xml_writer, $questionText);
        
        $text_parts = preg_split("/\[gap.*?\[\/gap\]/", $this->object->getClozeText());
        
        // add material with question text to presentation
        for ($i = 0; $i <= $this->object->getGapCount(); $i++) {
            $this->object->addQTIMaterial($a_xml_writer, $text_parts[$i]);
 
            if ($i < $this->object->getGapCount()) {
                // add gap
                $gap = $this->object->getGap($i);
                switch ($gap->getType()) {
                    case CLOZE_SELECT:
                        // comboboxes
                        $attrs = array(
                            "ident" => "gap_$i",
                            "rcardinality" => "Single"
                        );
                        $a_xml_writer->xmlStartTag("response_str", $attrs);
                        $solution = $this->object->getSuggestedSolution($i);
                        if (count($solution)) {
                            if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches)) {
                                $attrs = array(
                                    "label" => "suggested_solution"
                                );
                                $a_xml_writer->xmlStartTag("material", $attrs);
                                $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
                                if (strcmp($matches[1], "") != 0) {
                                    $intlink = $solution["internal_link"];
                                }
                                $a_xml_writer->xmlElement("mattext", null, $intlink);
                                $a_xml_writer->xmlEndTag("material");
                            }
                        }
 
                        $attrs = array("shuffle" => ($gap->getShuffle() ? "Yes" : "No"));
                        $a_xml_writer->xmlStartTag("render_choice", $attrs);
 
                        // add answers
                        foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $answeritem) {
                            $attrs = array(
                                "ident" => $answeritem->getOrder()
                            );
                            $a_xml_writer->xmlStartTag("response_label", $attrs);
                            $a_xml_writer->xmlStartTag("material");
                            $a_xml_writer->xmlElement("mattext", null, $answeritem->getAnswertext());
                            $a_xml_writer->xmlEndTag("material");
                            $a_xml_writer->xmlEndTag("response_label");
                        }
                        $a_xml_writer->xmlEndTag("render_choice");
                        $a_xml_writer->xmlEndTag("response_str");
                        break;
                    case CLOZE_TEXT:
                        // text fields
                        $attrs = array(
                            "ident" => "gap_$i",
                            "rcardinality" => "Single"
                        );
                        $a_xml_writer->xmlStartTag("response_str", $attrs);
                        $solution = $this->object->getSuggestedSolution($i);
                        if (count($solution)) {
                            if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches)) {
                                $attrs = array(
                                    "label" => "suggested_solution"
                                );
                                $a_xml_writer->xmlStartTag("material", $attrs);
                                $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
                                if (strcmp($matches[1], "") != 0) {
                                    $intlink = $solution["internal_link"];
                                }
                                $a_xml_writer->xmlElement("mattext", null, $intlink);
                                $a_xml_writer->xmlEndTag("material");
                            }
                        }
                        $attrs = array(
                            "fibtype" => "String",
                            "prompt" => "Box",
                            "columns" => $gap->getMaxWidth(),
                            "maxchars" => $gap->getGapSize()
                        );
                        $a_xml_writer->xmlStartTag("render_fib", $attrs);
                        $a_xml_writer->xmlEndTag("render_fib");
                        $a_xml_writer->xmlEndTag("response_str");
                        break;
                    case CLOZE_NUMERIC:
                        // numeric fields
                        $attrs = array(
                            "ident" => "gap_$i",
                            "numtype" => "Decimal",
                            "rcardinality" => "Single"
                        );
                        $a_xml_writer->xmlStartTag("response_num", $attrs);
                        $solution = $this->object->getSuggestedSolution($i);
                        if (count($solution)) {
                            if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches)) {
                                $attrs = array(
                                    "label" => "suggested_solution"
                                );
                                $a_xml_writer->xmlStartTag("material", $attrs);
                                $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
                                if (strcmp($matches[1], "") != 0) {
                                    $intlink = $solution["internal_link"];
                                }
                                $a_xml_writer->xmlElement("mattext", null, $intlink);
                                $a_xml_writer->xmlEndTag("material");
                            }
                        }
                        $answeritem = $gap->getItem(0);
                        $attrs = array(
                            "fibtype" => "Decimal",
                            "prompt" => "Box",
                            "columns" => $gap->getMaxWidth(),
                            "maxchars" => $gap->getGapSize()
                        );
                        if (is_object($answeritem)) {
                            if ($eval->e($answeritem->getLowerBound()) !== false) {
                                $attrs["minnumber"] = $answeritem->getLowerBound();
                            }
                            if ($eval->e($answeritem->getUpperBound()) !== false) {
                                $attrs["maxnumber"] = $answeritem->getUpperBound();
                            }
                        }
                        $a_xml_writer->xmlStartTag("render_fib", $attrs);
                        $a_xml_writer->xmlEndTag("render_fib");
                        $a_xml_writer->xmlEndTag("response_num");
                        break;
                }
            }
        }
        $a_xml_writer->xmlEndTag("flow");
        $a_xml_writer->xmlEndTag("presentation");
 
        // PART II: qti resprocessing
        $a_xml_writer->xmlStartTag("resprocessing");
        $a_xml_writer->xmlStartTag("outcomes");
        $a_xml_writer->xmlStartTag("decvar");
        $a_xml_writer->xmlEndTag("decvar");
        $a_xml_writer->xmlEndTag("outcomes");
 
        // add response conditions
        for ($i = 0; $i < $this->object->getGapCount(); $i++) {
            $gap = $this->object->getGap($i);
            switch ($gap->getType()) {
                case CLOZE_SELECT:
                    foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $answer) {
                        $attrs = array(
                            "continue" => "Yes"
                        );
                        $a_xml_writer->xmlStartTag("respcondition", $attrs);
                        // qti conditionvar
                        $a_xml_writer->xmlStartTag("conditionvar");
 
                        $attrs = array(
                            "respident" => "gap_$i"
                        );
                        $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                        $a_xml_writer->xmlEndTag("conditionvar");
                        // qti setvar
                        $attrs = array(
                            "action" => "Add"
                        );
                        $a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
                        // qti displayfeedback
                        $linkrefid = "";
                        $linkrefid = "$i" . "_Response_" . $answer->getOrder();
                        $attrs = array(
                            "feedbacktype" => "Response",
                            "linkrefid" => $linkrefid
                        );
                        $a_xml_writer->xmlElement("displayfeedback", $attrs);
                        $a_xml_writer->xmlEndTag("respcondition");
                    }
                    break;
                case CLOZE_TEXT:
                    foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $answer) {
                        $attrs = array(
                            "continue" => "Yes"
                        );
                        $a_xml_writer->xmlStartTag("respcondition", $attrs);
                        // qti conditionvar
                        $a_xml_writer->xmlStartTag("conditionvar");
                        $attrs = array(
                            "respident" => "gap_$i"
                        );
                        $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                        $a_xml_writer->xmlEndTag("conditionvar");
                        // qti setvar
                        $attrs = array(
                            "action" => "Add"
                        );
                        $a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
                        // qti displayfeedback
                        $linkrefid = "$i" . "_Response_" . $answer->getOrder();
                        $attrs = array(
                            "feedbacktype" => "Response",
                            "linkrefid" => $linkrefid
                        );
                        $a_xml_writer->xmlElement("displayfeedback", $attrs);
                        $a_xml_writer->xmlEndTag("respcondition");
                    }
                    break;
                case CLOZE_NUMERIC:
                    foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $answer) {
                        $attrs = array(
                            "continue" => "Yes"
                        );
                        $a_xml_writer->xmlStartTag("respcondition", $attrs);
                        // qti conditionvar
                        $a_xml_writer->xmlStartTag("conditionvar");
                        $attrs = array(
                            "respident" => "gap_$i"
                        );
                        $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                        $a_xml_writer->xmlEndTag("conditionvar");
                        // qti setvar
                        $attrs = array(
                            "action" => "Add"
                        );
                        $a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
                        // qti displayfeedback
                        $linkrefid = "$i" . "_Response_" . $answer->getOrder();
                        $attrs = array(
                            "feedbacktype" => "Response",
                            "linkrefid" => $linkrefid
                        );
                        $a_xml_writer->xmlElement("displayfeedback", $attrs);
                        $a_xml_writer->xmlEndTag("respcondition");
                    }
                    break;
            }
        }
 
        $feedback_allcorrect = $this->object->feedbackOBJ->getGenericFeedbackExportPresentation(
            $this->object->getId(),
            true
        );
        if (strlen($feedback_allcorrect)) {
            $attrs = array(
                "continue" => "Yes"
            );
            $a_xml_writer->xmlStartTag("respcondition", $attrs);
            // qti conditionvar
            $a_xml_writer->xmlStartTag("conditionvar");
            
            for ($i = 0; $i < $this->object->getGapCount(); $i++) {
                $gap = $this->object->getGap($i);
                $indexes = $gap->getBestSolutionIndexes();
                if ($i > 0) {
                    $a_xml_writer->xmlStartTag("and");
                }
                switch ($gap->getType()) {
                    case CLOZE_SELECT:
                        $k = 0;
                        foreach ($indexes as $key) {
                            if ($k > 0) {
                                $a_xml_writer->xmlStartTag("or");
                            }
                            $attrs = array(
                                "respident" => "gap_$i"
                            );
                            $answer = $gap->getItem($key);
                            $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                            if ($k > 0) {
                                $a_xml_writer->xmlEndTag("or");
                            }
                            $k++;
                        }
                        break;
                    case CLOZE_TEXT:
                        $k = 0;
                        foreach ($indexes as $key) {
                            if ($k > 0) {
                                $a_xml_writer->xmlStartTag("or");
                            }
                            $attrs = array(
                                "respident" => "gap_$i"
                            );
                            $answer = $gap->getItem($key);
                            $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                            if ($k > 0) {
                                $a_xml_writer->xmlEndTag("or");
                            }
                            $k++;
                        }
                        break;
                    case CLOZE_NUMERIC:
                        $k = 0;
                        foreach ($indexes as $key) {
                            if ($k > 0) {
                                $a_xml_writer->xmlStartTag("or");
                            }
                            $attrs = array(
                                "respident" => "gap_$i"
                            );
                            $answer = $gap->getItem($key);
                            $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                            if ($k > 0) {
                                $a_xml_writer->xmlEndTag("or");
                            }
                            $k++;
                        }
                        break;
                }
                if ($i > 0) {
                    $a_xml_writer->xmlEndTag("and");
                }
            }
            $a_xml_writer->xmlEndTag("conditionvar");
            // qti displayfeedback
            $attrs = array(
                "feedbacktype" => "Response",
                "linkrefid" => "response_allcorrect"
            );
            $a_xml_writer->xmlElement("displayfeedback", $attrs);
            $a_xml_writer->xmlEndTag("respcondition");
        }
        $feedback_onenotcorrect = $this->object->feedbackOBJ->getGenericFeedbackExportPresentation(
            $this->object->getId(),
            false
        );
        if (strlen($feedback_onenotcorrect)) {
            $attrs = array(
                "continue" => "Yes"
            );
            $a_xml_writer->xmlStartTag("respcondition", $attrs);
            // qti conditionvar
            $a_xml_writer->xmlStartTag("conditionvar");
            
            $a_xml_writer->xmlStartTag("not");
            for ($i = 0; $i < $this->object->getGapCount(); $i++) {
                $gap = $this->object->getGap($i);
                $indexes = $gap->getBestSolutionIndexes();
                if ($i > 0) {
                    $a_xml_writer->xmlStartTag("and");
                }
                switch ($gap->getType()) {
                    case CLOZE_SELECT:
                        $k = 0;
                        foreach ($indexes as $key) {
                            if ($k > 0) {
                                $a_xml_writer->xmlStartTag("or");
                            }
                            $attrs = array(
                                "respident" => "gap_$i"
                            );
                            $answer = $gap->getItem($key);
                            $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                            if ($k > 0) {
                                $a_xml_writer->xmlEndTag("or");
                            }
                            $k++;
                        }
                        break;
                    case CLOZE_TEXT:
                        $k = 0;
                        foreach ($indexes as $key) {
                            if ($k > 0) {
                                $a_xml_writer->xmlStartTag("or");
                            }
                            $attrs = array(
                                "respident" => "gap_$i"
                            );
                            $answer = $gap->getItem($key);
                            $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                            if ($k > 0) {
                                $a_xml_writer->xmlEndTag("or");
                            }
                            $k++;
                        }
                        break;
                    case CLOZE_NUMERIC:
                        $k = 0;
                        foreach ($indexes as $key) {
                            if ($k > 0) {
                                $a_xml_writer->xmlStartTag("or");
                            }
                            $attrs = array(
                                "respident" => "gap_$i"
                            );
                            $answer = $gap->getItem($key);
                            $a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
                            if ($k > 0) {
                                $a_xml_writer->xmlEndTag("or");
                            }
                            $k++;
                        }
                        break;
                }
                if ($i > 0) {
                    $a_xml_writer->xmlEndTag("and");
                }
            }
            $a_xml_writer->xmlEndTag("not");
            $a_xml_writer->xmlEndTag("conditionvar");
            // qti displayfeedback
            $attrs = array(
                "feedbacktype" => "Response",
                "linkrefid" => "response_onenotcorrect"
            );
            $a_xml_writer->xmlElement("displayfeedback", $attrs);
            $a_xml_writer->xmlEndTag("respcondition");
        }
 
        $a_xml_writer->xmlEndTag("resprocessing");
 
        // PART III: qti itemfeedback
        for ($i = 0; $i < $this->object->getGapCount(); $i++) {
            $gap = $this->object->getGap($i);
            switch ($gap->getType()) {
                case CLOZE_SELECT:
                    break;
                case CLOZE_TEXT:
                    break;
                case CLOZE_NUMERIC:
                    break;
            }
            /*foreach ($gap->getItems() as $answer)
            {
                $linkrefid = "$i" . "_Response_" . $answer->getOrder();
                $attrs = array(
                    "ident" => $linkrefid,
                    "view" => "All"
                );
                $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
                // qti flow_mat
                $a_xml_writer->xmlStartTag("flow_mat");
//                              $a_xml_writer->xmlStartTag("material");
//                              $a_xml_writer->xmlElement("mattext");
//                              $a_xml_writer->xmlEndTag("material");
                $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
                    $this->object->getId(), $index
                );
                $this->object->addQTIMaterial($a_xml_writer, $fb);
                $a_xml_writer->xmlEndTag("flow_mat");
                $a_xml_writer->xmlEndTag("itemfeedback");
            }*/
 
            $attrs = array(
                "ident" => $i,
                "view" => "All"
            );
            $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
            // qti flow_mat
            $a_xml_writer->xmlStartTag("flow_mat");
            //                          $a_xml_writer->xmlStartTag("material");
            //                          $a_xml_writer->xmlElement("mattext");
            //                          $a_xml_writer->xmlEndTag("material");
            $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
                $this->object->getId(),
                $i
            );
            $this->object->addQTIMaterial($a_xml_writer, $fb);
            $a_xml_writer->xmlEndTag("flow_mat");
            $a_xml_writer->xmlEndTag("itemfeedback");
        }
 
        if (strlen($feedback_allcorrect)) {
            $attrs = array(
                "ident" => "response_allcorrect",
                "view" => "All"
            );
            $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
            // qti flow_mat
            $a_xml_writer->xmlStartTag("flow_mat");
            $this->object->addQTIMaterial($a_xml_writer, $feedback_allcorrect);
            $a_xml_writer->xmlEndTag("flow_mat");
            $a_xml_writer->xmlEndTag("itemfeedback");
        }
        if (strlen($feedback_onenotcorrect)) {
            $attrs = array(
                "ident" => "response_onenotcorrect",
                "view" => "All"
            );
            $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
            // qti flow_mat
            $a_xml_writer->xmlStartTag("flow_mat");
            $this->object->addQTIMaterial($a_xml_writer, $feedback_onenotcorrect);
            $a_xml_writer->xmlEndTag("flow_mat");
            $a_xml_writer->xmlEndTag("itemfeedback");
        }
        
        $a_xml_writer->xmlEndTag("item");
        $a_xml_writer->xmlEndTag("questestinterop");
 
        $xml = $a_xml_writer->xmlDumpMem(false);
        if (!$a_include_header) {
            $pos = strpos($xml, "?>");
            $xml = substr($xml, $pos + 2);
        }
        return $xml;
    }
}