assMultipleChoiceExport Class Reference
Class for multiple choice question exports. More...
Inheritance diagram for assMultipleChoiceExport:
Collaboration diagram for assMultipleChoiceExport:
Public Member Functions | |
| toXML ($a_include_header=true, $a_include_binary=true, $a_shuffle=false, $test_output=false, $force_image_references=false) | |
| Returns a QTI xml representation of the question. More... | |
| Public Member Functions inherited from assQuestionExport | |
| assQuestionExport (&$a_object) | |
| assQuestionExport constructor More... | |
| exportFeedbackOnly ($a_xml_writer) | |
| toXML ($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. More... | |
Additional Inherited Members | |
| Data Fields inherited from assQuestionExport | |
| $object | |
| Protected Member Functions inherited from assQuestionExport | |
| addAnswerSpecificFeedback (ilXmlWriter $a_xml_writer, $answers) | |
| addGenericFeedback (ilXmlWriter $a_xml_writer) | |
| addQtiMetaDataField (ilXmlWriter $a_xml_writer, $fieldLabel, $fieldValue) | |
| adds a qti meta data field with given name and value to the passed xml writer (xml writer must be in context of opened "qtimetadata" tag) More... | |
| addAdditionalContentEditingModeInformation (ilXmlWriter $a_xml_writer) | |
| adds a qti meta data field for ilias specific information of "additional content editing mode" (xml writer must be in context of opened "qtimetadata" tag) More... | |
| addGeneralMetadata (ilXmlWriter $xmlwriter) | |
Detailed Description
Class for multiple choice question exports.
assMultipleChoiceExport is a class for multiple choice question exports
- Version
- $Id$
Definition at line 15 of file class.assMultipleChoiceExport.php.
Member Function Documentation
◆ toXML()
| assMultipleChoiceExport::toXML | ( | $a_include_header = true, |
|
$a_include_binary = true, |
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$a_shuffle = false, |
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$test_output = false, |
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$force_image_references = false |
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| ) |
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 @access public
Reimplemented from assQuestionExport.
Definition at line 26 of file class.assMultipleChoiceExport.php.
27 {
28 global $ilias;
29
30 include_once("./Services/Xml/classes/class.ilXmlWriter.php");
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 "maxattempts" => $this->object->getNrOfTries()
39 );
40 $a_xml_writer->xmlStartTag("item", $attrs);
41 // add question description
42 $a_xml_writer->xmlElement("qticomment", NULL, $this->object->getComment());
43 // add estimated working time
44 $workingtime = $this->object->getEstimatedWorkingTime();
45 $duration = sprintf("P0Y0M0DT%dH%dM%dS", $workingtime["h"], $workingtime["m"], $workingtime["s"]);
46 $a_xml_writer->xmlElement("duration", NULL, $duration);
47 // add ILIAS specific metadata
48 $a_xml_writer->xmlStartTag("itemmetadata");
49 $a_xml_writer->xmlStartTag("qtimetadata");
50 $a_xml_writer->xmlStartTag("qtimetadatafield");
51 $a_xml_writer->xmlElement("fieldlabel", NULL, "ILIAS_VERSION");
52 $a_xml_writer->xmlElement("fieldentry", NULL, $ilias->getSetting("ilias_version"));
53 $a_xml_writer->xmlEndTag("qtimetadatafield");
54 $a_xml_writer->xmlStartTag("qtimetadatafield");
55 $a_xml_writer->xmlElement("fieldlabel", NULL, "QUESTIONTYPE");
57 $a_xml_writer->xmlEndTag("qtimetadatafield");
58 $a_xml_writer->xmlStartTag("qtimetadatafield");
59 $a_xml_writer->xmlElement("fieldlabel", NULL, "AUTHOR");
60 $a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getAuthor());
61 $a_xml_writer->xmlEndTag("qtimetadatafield");
62
63 // additional content editing information
64 $this->addAdditionalContentEditingModeInformation($a_xml_writer);
65 $this->addGeneralMetadata($a_xml_writer);
66
67 $a_xml_writer->xmlStartTag("qtimetadatafield");
68 $a_xml_writer->xmlElement("fieldlabel", NULL, "thumb_size");
69 $a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getThumbSize());
70 $a_xml_writer->xmlEndTag("qtimetadatafield");
71
72 $a_xml_writer->xmlStartTag("qtimetadatafield");
73 $a_xml_writer->xmlElement("fieldlabel", NULL, "feedback_setting");
74 $a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getSpecificFeedbackSetting());
75 $a_xml_writer->xmlEndTag("qtimetadatafield");
76
77 $a_xml_writer->xmlEndTag("qtimetadata");
78 $a_xml_writer->xmlEndTag("itemmetadata");
79
80 // PART I: qti presentation
81 $attrs = array(
82 "label" => $this->object->getTitle()
83 );
84 $a_xml_writer->xmlStartTag("presentation", $attrs);
85 // add flow to presentation
86 $a_xml_writer->xmlStartTag("flow");
87 // add material with question text to presentation
88 $this->object->addQTIMaterial($a_xml_writer, $this->object->getQuestion());
89 // add answers to presentation
90 $attrs = array();
91 $attrs = array(
92 "ident" => "MCMR",
93 "rcardinality" => "Multiple"
94 );
95 $a_xml_writer->xmlStartTag("response_lid", $attrs);
96 $solution = $this->object->getSuggestedSolution(0);
97 if (count($solution))
98 {
99 if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches))
100 {
101 $a_xml_writer->xmlStartTag("material");
102 $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
103 if (strcmp($matches[1], "") != 0)
104 {
105 $intlink = $solution["internal_link"];
106 }
107 $attrs = array(
108 "label" => "suggested_solution"
109 );
110 $a_xml_writer->xmlElement("mattext", $attrs, $intlink);
111 $a_xml_writer->xmlEndTag("material");
112 }
113 }
114 // shuffle output
115 $attrs = array();
116 if ($this->object->getShuffle())
117 {
118 $attrs = array(
119 "shuffle" => "Yes"
120 );
121 }
122 else
123 {
124 $attrs = array(
125 "shuffle" => "No"
126 );
127 }
128 $a_xml_writer->xmlStartTag("render_choice", $attrs);
129 $answers =& $this->object->getAnswers();
130 $akeys = array_keys($answers);
131 if ($this->object->getShuffle() && $a_shuffle)
132 {
133 $akeys = $this->object->pcArrayShuffle($akeys);
134 }
135 // add answers
136 foreach ($akeys as $index)
137 {
138 $answer = $answers[$index];
139 $attrs = array(
140 "ident" => $index
141 );
142 $a_xml_writer->xmlStartTag("response_label", $attrs);
143
144 if (strlen($answer->getImage()))
145 {
146 $this->object->addQTIMaterial($a_xml_writer, $answer->getAnswertext(), FALSE, FALSE);
147 $imagetype = "image/jpeg";
148 if (preg_match("/.*\.(png|gif)$/", $answer->getImage(), $matches))
149 {
150 $imagetype = "image/" . $matches[1];
151 }
152 if ($force_image_references)
153 {
154 $attrs = array(
155 "imagtype" => $imagetype,
156 "label" => $answer->getImage(),
157 "uri" => $this->object->getImagePathWeb() . $answer->getImage()
158 );
159 $a_xml_writer->xmlElement("matimage", $attrs);
160 }
161 else
162 {
163 $imagepath = $this->object->getImagePath() . $answer->getImage();
164 $fh = @fopen($imagepath, "rb");
165 if ($fh != false)
166 {
167 $imagefile = fread($fh, filesize($imagepath));
168 fclose($fh);
169 $base64 = base64_encode($imagefile);
170 $attrs = array(
171 "imagtype" => $imagetype,
172 "label" => $answer->getImage(),
173 "embedded" => "base64"
174 );
175 $a_xml_writer->xmlElement("matimage", $attrs, $base64, FALSE, FALSE);
176 }
177 }
178 $a_xml_writer->xmlEndTag("material");
179 }
180 else
181 {
182 $this->object->addQTIMaterial($a_xml_writer, $answer->getAnswertext());
183 }
184 $a_xml_writer->xmlEndTag("response_label");
185 }
186 $a_xml_writer->xmlEndTag("render_choice");
187 $a_xml_writer->xmlEndTag("response_lid");
188 $a_xml_writer->xmlEndTag("flow");
189 $a_xml_writer->xmlEndTag("presentation");
190
191 // PART II: qti resprocessing
192 $a_xml_writer->xmlStartTag("resprocessing");
193 $a_xml_writer->xmlStartTag("outcomes");
194 $a_xml_writer->xmlStartTag("decvar");
195 $a_xml_writer->xmlEndTag("decvar");
196 $a_xml_writer->xmlEndTag("outcomes");
197 // add response conditions
198 foreach ($answers as $index => $answer)
199 {
200 $attrs = array(
201 "continue" => "Yes"
202 );
203 $a_xml_writer->xmlStartTag("respcondition", $attrs);
204 // qti conditionvar
205 $a_xml_writer->xmlStartTag("conditionvar");
206 $attrs = array();
207 $attrs = array(
208 "respident" => "MCMR"
209 );
210 $a_xml_writer->xmlElement("varequal", $attrs, $index);
211 $a_xml_writer->xmlEndTag("conditionvar");
212 // qti setvar
213 $attrs = array(
214 "action" => "Add"
215 );
216 $a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
217 // qti displayfeedback
218 $linkrefid = "response_$index";
219 $attrs = array(
220 "feedbacktype" => "Response",
221 "linkrefid" => $linkrefid
222 );
223 $a_xml_writer->xmlElement("displayfeedback", $attrs);
224 $a_xml_writer->xmlEndTag("respcondition");
225 $attrs = array(
226 "continue" => "Yes"
227 );
228 $a_xml_writer->xmlStartTag("respcondition", $attrs);
229
230 // qti conditionvar
231 $a_xml_writer->xmlStartTag("conditionvar");
232 $attrs = array();
233 $attrs = array(
234 "respident" => "MCMR"
235 );
236 $a_xml_writer->xmlStartTag("not");
237 $a_xml_writer->xmlElement("varequal", $attrs, $index);
238 $a_xml_writer->xmlEndTag("not");
239 $a_xml_writer->xmlEndTag("conditionvar");
240 // qti setvar
241 $attrs = array(
242 "action" => "Add"
243 );
244 $a_xml_writer->xmlElement("setvar", $attrs, $answer->getPointsUnchecked());
245 $a_xml_writer->xmlEndTag("respcondition");
246 }
247 $feedback_allcorrect = $this->object->feedbackOBJ->getGenericFeedbackExportPresentation(
248 $this->object->getId(), true
249 );
250 if (strlen($feedback_allcorrect))
251 {
252 $attrs = array(
253 "continue" => "Yes"
254 );
255 $a_xml_writer->xmlStartTag("respcondition", $attrs);
256 // qti conditionvar
257 $a_xml_writer->xmlStartTag("conditionvar");
258 foreach ($answers as $index => $answer)
259 {
260 if ($answer->getPointsChecked() < $answer->getPointsUnchecked())
261 {
262 $a_xml_writer->xmlStartTag("not");
263 }
264 $attrs = array(
265 "respident" => "MCMR"
266 );
267 $a_xml_writer->xmlElement("varequal", $attrs, $index);
268 if ($answer->getPointsChecked() < $answer->getPointsUnchecked())
269 {
270 $a_xml_writer->xmlEndTag("not");
271 }
272 }
273 $a_xml_writer->xmlEndTag("conditionvar");
274 // qti displayfeedback
275 $attrs = array(
276 "feedbacktype" => "Response",
277 "linkrefid" => "response_allcorrect"
278 );
279 $a_xml_writer->xmlElement("displayfeedback", $attrs);
280 $a_xml_writer->xmlEndTag("respcondition");
281 }
282 $feedback_onenotcorrect = $this->object->feedbackOBJ->getGenericFeedbackExportPresentation(
283 $this->object->getId(), false
284 );
285 if (strlen($feedback_onenotcorrect))
286 {
287 $attrs = array(
288 "continue" => "Yes"
289 );
290 $a_xml_writer->xmlStartTag("respcondition", $attrs);
291 // qti conditionvar
292 $a_xml_writer->xmlStartTag("conditionvar");
293 foreach ($answers as $index => $answer)
294 {
295 if ($index > 0)
296 {
297 $a_xml_writer->xmlStartTag("or");
298 }
299 if ($answer->getPointsChecked() >= $answer->getPointsUnchecked())
300 {
301 $a_xml_writer->xmlStartTag("not");
302 }
303 $attrs = array(
304 "respident" => "MCMR"
305 );
306 $a_xml_writer->xmlElement("varequal", $attrs, $index);
307 if ($answer->getPointsChecked() >= $answer->getPointsUnchecked())
308 {
309 $a_xml_writer->xmlEndTag("not");
310 }
311 if ($index > 0)
312 {
313 $a_xml_writer->xmlEndTag("or");
314 }
315 }
316 $a_xml_writer->xmlEndTag("conditionvar");
317 // qti displayfeedback
318 $attrs = array(
319 "feedbacktype" => "Response",
320 "linkrefid" => "response_onenotcorrect"
321 );
322 $a_xml_writer->xmlElement("displayfeedback", $attrs);
323 $a_xml_writer->xmlEndTag("respcondition");
324 }
325 $a_xml_writer->xmlEndTag("resprocessing");
326
327 // PART III: qti itemfeedback
328 foreach ($answers as $index => $answer)
329 {
330 $linkrefid = "response_$index";
331 $attrs = array(
332 "ident" => $linkrefid,
333 "view" => "All"
334 );
335 $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
336 // qti flow_mat
337 $a_xml_writer->xmlStartTag("flow_mat");
338 $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
339 $this->object->getId(), $index
340 );
341 $this->object->addQTIMaterial($a_xml_writer, $fb);
342 $a_xml_writer->xmlEndTag("flow_mat");
343 $a_xml_writer->xmlEndTag("itemfeedback");
344 }
345 if (strlen($feedback_allcorrect))
346 {
347 $attrs = array(
348 "ident" => "response_allcorrect",
349 "view" => "All"
350 );
351 $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
352 // qti flow_mat
353 $a_xml_writer->xmlStartTag("flow_mat");
354 $this->object->addQTIMaterial($a_xml_writer, $feedback_allcorrect);
355 $a_xml_writer->xmlEndTag("flow_mat");
356 $a_xml_writer->xmlEndTag("itemfeedback");
357 }
358 if (strlen($feedback_onenotcorrect))
359 {
360 $attrs = array(
361 "ident" => "response_onenotcorrect",
362 "view" => "All"
363 );
364 $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
365 // qti flow_mat
366 $a_xml_writer->xmlStartTag("flow_mat");
367 $this->object->addQTIMaterial($a_xml_writer, $feedback_onenotcorrect);
368 $a_xml_writer->xmlEndTag("flow_mat");
369 $a_xml_writer->xmlEndTag("itemfeedback");
370 }
371
372 $a_xml_writer->xmlEndTag("item");
373 $a_xml_writer->xmlEndTag("questestinterop");
374
375 $xml = $a_xml_writer->xmlDumpMem(FALSE);
376 if (!$a_include_header)
377 {
378 $pos = strpos($xml, "?>");
379 $xml = substr($xml, $pos + 2);
380 }
381 return $xml;
382 }
addGeneralMetadata(ilXmlWriter $xmlwriter)
Definition: class.assQuestionExport.php:210
addAdditionalContentEditingModeInformation(ilXmlWriter $a_xml_writer)
adds a qti meta data field for ilias specific information of "additional content editing mode" (xml w...
Definition: class.assQuestionExport.php:200
const MULTIPLE_CHOICE_QUESTION_IDENTIFIER
Definition: inc.AssessmentConstants.php:30
References assQuestionExport\addAdditionalContentEditingModeInformation(), assQuestionExport\addGeneralMetadata(), MULTIPLE_CHOICE_QUESTION_IDENTIFIER, and ilXmlWriter\xmlHeader().
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The documentation for this class was generated from the following file:
- Modules/TestQuestionPool/classes/export/qti12/class.assMultipleChoiceExport.php
