ILIAS  release_5-0 Revision 5.0.0-1144-gc4397b1f87
class.assFormulaQuestionExport.php
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1 <?php
2 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
3 
4 include_once "./Modules/TestQuestionPool/classes/export/qti12/class.assQuestionExport.php";
5 
16 {
26  function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle = false, $test_output = false, $force_image_references = false)
27  {
28  global $ilias;
29 
30  include_once 'Services/Xml/classes/class.ilXmlWriter.php';
31  $a_xml_writer = new ilXmlWriter;
32  // set xml header
33  $a_xml_writer->xmlHeader();
34  $a_xml_writer->xmlStartTag("questestinterop");
35  $attrs = array(
36  "ident" => "il_".IL_INST_ID."_qst_".$this->object->getId(),
37  "title" => $this->object->getTitle()
38  );
39  $a_xml_writer->xmlStartTag("item", $attrs);
40  // add question description
41  $a_xml_writer->xmlElement("qticomment", NULL, $this->object->getComment());
42  // add estimated working time
43  $workingtime = $this->object->getEstimatedWorkingTime();
44  $duration = sprintf("P0Y0M0DT%dH%dM%dS", $workingtime["h"], $workingtime["m"], $workingtime["s"]);
45  $a_xml_writer->xmlElement("duration", NULL, $duration);
46  // add ILIAS specific metadata
47  $a_xml_writer->xmlStartTag("itemmetadata");
48  $a_xml_writer->xmlStartTag("qtimetadata");
49  $a_xml_writer->xmlStartTag("qtimetadatafield");
50  $a_xml_writer->xmlElement("fieldlabel", NULL, "ILIAS_VERSION");
51  $a_xml_writer->xmlElement("fieldentry", NULL, $ilias->getSetting("ilias_version"));
52  $a_xml_writer->xmlEndTag("qtimetadatafield");
53  $a_xml_writer->xmlStartTag("qtimetadatafield");
54  $a_xml_writer->xmlElement("fieldlabel", NULL, "QUESTIONTYPE");
55  $a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getQuestionType());
56  $a_xml_writer->xmlEndTag("qtimetadatafield");
57  $a_xml_writer->xmlStartTag("qtimetadatafield");
58  $a_xml_writer->xmlElement("fieldlabel", NULL, "AUTHOR");
59  $a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getAuthor());
60  $a_xml_writer->xmlEndTag("qtimetadatafield");
61  $a_xml_writer->xmlStartTag("qtimetadatafield");
62  $a_xml_writer->xmlElement("fieldlabel", NULL, "points");
63  $a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getPoints());
64  $a_xml_writer->xmlEndTag("qtimetadatafield");
65  foreach ($this->object->getVariables() as $variable)
66  {
67  $var = array(
68  "precision" => $variable->getPrecision(),
69  "intprecision" => $variable->getIntprecision(),
70  "rangemin" => $variable->getRangeMin(),
71  "rangemax" => $variable->getRangeMax(),
72  "unit" => (is_object($variable->getUnit())) ? $variable->getUnit()->getUnit() : "",
73  "unitvalue" => (is_object($variable->getUnit())) ? $variable->getUnit()->getId() : ""
74  );
75  $a_xml_writer->xmlStartTag("qtimetadatafield");
76  $a_xml_writer->xmlElement("fieldlabel", NULL, $variable->getVariable());
77  $a_xml_writer->xmlElement("fieldentry", NULL, serialize($var));
78  $a_xml_writer->xmlEndTag("qtimetadatafield");
79  }
80  foreach ($this->object->getResults() as $result)
81  {
82  $resultunits = $this->object->getResultUnits($result);
83  $ru = array();
84  foreach ($resultunits as $unit)
85  {
86  array_push($ru, array("unit" => $unit->getUnit(), "unitvalue" => $unit->getId()));
87  }
88  $res = array(
89  "precision" => $result->getPrecision(),
90  "tolerance" => $result->getTolerance(),
91  "rangemin" => $result->getRangeMin(),
92  "rangemax" => $result->getRangeMax(),
93  "points" => $result->getPoints(),
94  "formula" => $result->getFormula(),
95  "rating" => ($result->getRatingSimple()) ? "" : array("sign" => $result->getRatingSign(), "value" => $result->getRatingValue(), "unit" => $result->getRatingUnit()),
96  "unit" => (is_object($result->getUnit())) ? $result->getUnit()->getUnit() : "",
97  "unitvalue" => (is_object($result->getUnit())) ? $result->getUnit()->getId() : "",
98  "resultunits" => $ru
99  );
100  $a_xml_writer->xmlStartTag("qtimetadatafield");
101  $a_xml_writer->xmlElement("fieldlabel", NULL, $result->getResult());
102  $a_xml_writer->xmlElement("fieldentry", NULL, serialize($res));
103  $a_xml_writer->xmlEndTag("qtimetadatafield");
104  }
105 
106  // additional content editing information
107  $this->addAdditionalContentEditingModeInformation($a_xml_writer);
108  $this->addGeneralMetadata($a_xml_writer);
109 
110  $a_xml_writer->xmlEndTag("qtimetadata");
111  $a_xml_writer->xmlEndTag("itemmetadata");
112 
113  // PART I: qti presentation
114  $attrs = array(
115  "label" => $this->object->getTitle()
116  );
117  $a_xml_writer->xmlStartTag("presentation", $attrs);
118  // add flow to presentation
119  $a_xml_writer->xmlStartTag("flow");
120  // add material with question text to presentation
121  $this->object->addQTIMaterial($a_xml_writer, $this->object->getQuestion());
122  // add answers to presentation
123  $a_xml_writer->xmlEndTag("flow");
124  $a_xml_writer->xmlEndTag("presentation");
125 
126  $a_xml_writer->xmlEndTag("item");
127  $a_xml_writer->xmlEndTag("questestinterop");
128 
129  $xml = $a_xml_writer->xmlDumpMem(FALSE);
130  if (!$a_include_header)
131  {
132  $pos = strpos($xml, "?>");
133  $xml = substr($xml, $pos + 2);
134  }
135  return $xml;
136  }
137 
138 }
139 
140 ?>
$result
XML writer class.
Class for formula question question exports.
Class for question exports.
addGeneralMetadata(ilXmlWriter $xmlwriter)
toXML($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.
xmlHeader()
Writes xml header public.
addAdditionalContentEditingModeInformation(ilXmlWriter $a_xml_writer)
adds a qti meta data field for ilias specific information of "additional content editing mode" (xml w...