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Public Member Functions
assMatchingQuestionExport Class Reference
Modules/TestQuestionPool

Class for matching question exports. More...

+ Inheritance diagram for assMatchingQuestionExport:
+ Collaboration diagram for assMatchingQuestionExport:

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 matching question exports.

assMatchingQuestionExport is a class for matching 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.assMatchingQuestionExport.php.

Member Function Documentation

assMatchingQuestionExport::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.assMatchingQuestionExport.php.

References MATCHING_QUESTION_IDENTIFIER, and ilXmlWriter\xmlHeader().

{
global $ilias;
include_once("./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()
);
$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, MATCHING_QUESTION_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, "shuffle");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getShuffle());
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "thumb_geometry");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getThumbGeometry());
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "element_height");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getElementHeight());
$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");
// add material with question text to presentation
$this->object->addQTIMaterial($a_xml_writer, $this->object->getQuestion());
// add answers to presentation
$attrs = array(
"ident" => "MQ",
"rcardinality" => "Multiple"
);
$a_xml_writer->xmlStartTag("response_grp", $attrs);
$solution = $this->object->getSuggestedSolution(0);
if (count($solution))
{
if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches))
{
$a_xml_writer->xmlStartTag("material");
$intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
if (strcmp($matches[1], "") != 0)
{
$intlink = $solution["internal_link"];
}
$attrs = array(
"label" => "suggested_solution"
);
$a_xml_writer->xmlElement("mattext", $attrs, $intlink);
$a_xml_writer->xmlEndTag("material");
}
}
// shuffle output
$attrs = array();
if ($this->object->getShuffle())
{
$attrs = array(
"shuffle" => "Yes"
);
}
else
{
$attrs = array(
"shuffle" => "No"
);
}
$a_xml_writer->xmlStartTag("render_choice", $attrs);
// add answertext
$matchingtext_orders = array();
foreach ($this->object->getMatchingPairs() as $index => $matchingpair)
{
array_push($matchingtext_orders, $matchingpair->term->identifier);
}
$termids = array();
foreach ($this->object->getTerms() as $term)
{
array_push($termids, $term->identifier);
}
// add answers
foreach ($this->object->getDefinitions() as $definition)
{
$attrs = array(
"ident" => $definition->identifier,
"match_max" => "1",
"match_group" => join($termids, ",")
);
$a_xml_writer->xmlStartTag("response_label", $attrs);
$a_xml_writer->xmlStartTag("material");
if (strlen($definition->picture))
{
if ($force_image_references)
{
$attrs = array(
"imagtype" => "image/jpeg",
"label" => $definition->picture,
"uri" => $this->object->getImagePathWeb() . $definition->picture
);
$a_xml_writer->xmlElement("matimage", $attrs);
}
else
{
$imagepath = $this->object->getImagePath() . $definition->picture;
$fh = @fopen($imagepath, "rb");
if ($fh != false)
{
$imagefile = fread($fh, filesize($imagepath));
fclose($fh);
$base64 = base64_encode($imagefile);
$attrs = array(
"imagtype" => "image/jpeg",
"label" => $definition->picture,
"embedded" => "base64"
);
$a_xml_writer->xmlElement("matimage", $attrs, $base64, FALSE, FALSE);
}
}
}
if (strlen($definition->text))
{
$attrs = array(
"texttype" => "text/plain"
);
if ($this->object->isHTML($definition->text))
{
$attrs["texttype"] = "text/xhtml";
}
$a_xml_writer->xmlElement("mattext", $attrs, $definition->text);
}
$a_xml_writer->xmlEndTag("material");
$a_xml_writer->xmlEndTag("response_label");
}
// add matchingtext
foreach ($this->object->getTerms() as $term)
{
$attrs = array(
"ident" => $term->identifier
);
$a_xml_writer->xmlStartTag("response_label", $attrs);
$a_xml_writer->xmlStartTag("material");
if (strlen($term->picture))
{
if ($force_image_references)
{
$attrs = array(
"imagtype" => "image/jpeg",
"label" => $term->picture,
"uri" => $this->object->getImagePathWeb() . $term->picture
);
$a_xml_writer->xmlElement("matimage", $attrs);
}
else
{
$imagepath = $this->object->getImagePath() . $term->picture;
$fh = @fopen($imagepath, "rb");
if ($fh != false)
{
$imagefile = fread($fh, filesize($imagepath));
fclose($fh);
$base64 = base64_encode($imagefile);
$attrs = array(
"imagtype" => "image/jpeg",
"label" => $term->picture,
"embedded" => "base64"
);
$a_xml_writer->xmlElement("matimage", $attrs, $base64, FALSE, FALSE);
}
}
}
if (strlen($term->text))
{
$attrs = array(
"texttype" => "text/plain"
);
if ($this->object->isHTML($term->text))
{
$attrs["texttype"] = "text/xhtml";
}
$a_xml_writer->xmlElement("mattext", $attrs, $term->text);
}
$a_xml_writer->xmlEndTag("material");
$a_xml_writer->xmlEndTag("response_label");
}
$a_xml_writer->xmlEndTag("render_choice");
$a_xml_writer->xmlEndTag("response_grp");
$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");
$a_xml_writer->xmlEndTag("outcomes");
// add response conditions
foreach ($this->object->getMatchingPairs() as $matchingpair)
{
$attrs = array(
"continue" => "Yes"
);
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
$attrs = array(
"respident" => "MQ"
);
$a_xml_writer->xmlElement("varsubset", $attrs, $matchingpair->term->identifier . "," . $matchingpair->definition->identifier);
$a_xml_writer->xmlEndTag("conditionvar");
// qti setvar
$attrs = array(
"action" => "Add"
);
$a_xml_writer->xmlElement("setvar", $attrs, $matchingpair->points);
// qti displayfeedback
$attrs = array(
"feedbacktype" => "Response",
"linkrefid" => "correct_" . $matchingpair->term->identifier . "_" . $matchingpair->definition_identifier
);
$a_xml_writer->xmlElement("displayfeedback", $attrs);
$a_xml_writer->xmlEndTag("respcondition");
}
$feedback_allcorrect = $this->object->getFeedbackGeneric(1);
if (strlen($feedback_allcorrect))
{
$attrs = array(
"continue" => "Yes"
);
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
foreach ($this->object->getMatchingPairs() as $matchingpair)
{
$attrs = array(
"respident" => "MQ"
);
$a_xml_writer->xmlElement("varsubset", $attrs, $matchingpair->term->identifier . "," . $matchingpair->definition->identifier);
}
$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");
$a_xml_writer->xmlStartTag("not");
foreach ($this->object->getMatchingPairs() as $matchingpair)
{
$attrs = array(
"respident" => "MQ"
);
$a_xml_writer->xmlElement("varsubset", $attrs, $matchingpair->term->identifier . "," . $matchingpair->definition->identifier);
}
$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");
}
$a_xml_writer->xmlEndTag("resprocessing");
// PART III: qti itemfeedback
foreach ($this->object->getMatchingPairs() as $matchingpair)
{
$attrs = array(
"ident" => "correct_" . $matchingpair->term->identifier . "_" . $matchingpair->definition->identifier,
"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");
$a_xml_writer->xmlEndTag("itemfeedback");
}
if (strlen($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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The documentation for this class was generated from the following file: