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Public Member Functions
assClozeTestExport Class Reference
Modules/TestQuestionPool

Class for cloze question exports. More...

+ Inheritance diagram for assClozeTestExport:
+ Collaboration diagram for assClozeTestExport:

Public Member Functions

 toXML ($a_include_header=true, $a_include_binary=true, $a_shuffle=false, $test_output=false, $force_image_references=false)
 Returns a QTI xml representation of the question.
- Public Member Functions inherited from assQuestionExport
 assQuestionExport (&$a_object)
 assQuestionExport constructor
 exportFeedbackOnly ($a_xml_writer)

Additional Inherited Members

- Data Fields inherited from assQuestionExport
 $object

Detailed Description

Class for cloze question exports.

assClozeTestExport is a class for cloze question exports

Author
Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m
Version
$Id$

Definition at line 35 of file class.assClozeTestExport.php.

Member Function Documentation

assClozeTestExport::toXML (   $a_include_header = true,
  $a_include_binary = true,
  $a_shuffle = false,
  $test_output = false,
  $force_image_references = false 
)

Returns a QTI xml representation of the question.

Returns a QTI xml representation of the question and sets the internal domxml variable with the DOM XML representation of the QTI xml representation

Returns
string The QTI xml representation of the question public

Reimplemented from assQuestionExport.

Definition at line 46 of file class.assClozeTestExport.php.

References CLOZE_NUMERIC, CLOZE_SELECT, CLOZE_TEST_IDENTIFIER, CLOZE_TEXT, and ilXmlWriter\xmlHeader().

{
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");
$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->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");
$text_parts = preg_split("/\[gap.*?\[\/gap\]/", $this->object->getClozeText());
// add material with question text to presentation
for ($i = 0; $i <= $this->object->getGapCount(); $i++)
{
// n-th text part
if ($i == 0)
{
$this->object->addQTIMaterial($a_xml_writer, $text_parts[$i]);
}
else
{
$this->object->addQTIMaterial($a_xml_writer, $text_parts[$i], TRUE, FALSE);
}
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() 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()
);
$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" => $gap->getMaxWidth()
);
if (is_object($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() 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() 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() 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 = $this->object->getFeedbackGeneric(1);
if (strlen($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 = $this->object->getFeedbackGeneric(0);
if (strlen($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 ($gap->getType())
{
case CLOZE_SELECT:
foreach ($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");
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}
break;
case CLOZE_TEXT:
foreach ($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");
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}
break;
case CLOZE_NUMERIC:
foreach ($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");
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}
break;
}
}
if (strlen($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;
}

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