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aeb15530 | 1 | <?php |
688d8753 TH |
2 | |
3 | // This file is part of Moodle - http://moodle.org/ | |
4 | // | |
5 | // Moodle is free software: you can redistribute it and/or modify | |
6 | // it under the terms of the GNU General Public License as published by | |
7 | // the Free Software Foundation, either version 3 of the License, or | |
8 | // (at your option) any later version. | |
84769fd8 | 9 | // |
688d8753 TH |
10 | // Moodle is distributed in the hope that it will be useful, |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | // GNU General Public License for more details. | |
84769fd8 | 14 | // |
688d8753 TH |
15 | // You should have received a copy of the GNU General Public License |
16 | // along with Moodle. If not, see <http://www.gnu.org/licenses/>. | |
17 | ||
18 | /** | |
19 | * Moodle XML question importer. | |
20 | * | |
21 | * @package qformat | |
22 | * @subpackage qformat_xml | |
23 | * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com} | |
24 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
25 | */ | |
26 | ||
27 | ||
41a89a07 | 28 | /** |
688d8753 TH |
29 | * Importer for Moodle XML question format. |
30 | * | |
31 | * See http://docs.moodle.org/en/Moodle_XML_format for a description of the format. | |
32 | * | |
33 | * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com} | |
34 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
41a89a07 | 35 | */ |
688d8753 | 36 | require_once($CFG->libdir . '/xmlize.php'); |
84769fd8 | 37 | |
f5565b69 | 38 | class qformat_xml extends qformat_default { |
84769fd8 | 39 | |
40 | function provide_import() { | |
41 | return true; | |
42 | } | |
43 | ||
44 | function provide_export() { | |
45 | return true; | |
46 | } | |
47 | ||
48 | // IMPORT FUNCTIONS START HERE | |
49 | ||
88bc20c3 | 50 | /** |
c81415c7 | 51 | * Translate human readable format name |
52 | * into internal Moodle code number | |
6e557c08 | 53 | * @param string name format name from xml file |
54 | * @return int Moodle format code | |
c81415c7 | 55 | */ |
84769fd8 | 56 | function trans_format( $name ) { |
88bc20c3 | 57 | $name = trim($name); |
58 | ||
84769fd8 | 59 | if ($name=='moodle_auto_format') { |
60 | $id = 0; | |
61 | } | |
62 | elseif ($name=='html') { | |
63 | $id = 1; | |
64 | } | |
65 | elseif ($name=='plain_text') { | |
66 | $id = 2; | |
67 | } | |
68 | elseif ($name=='wiki_like') { | |
69 | $id = 3; | |
70 | } | |
71 | elseif ($name=='markdown') { | |
72 | $id = 4; | |
73 | } | |
74 | else { | |
75 | $id = 0; // or maybe warning required | |
76 | } | |
77 | return $id; | |
78 | } | |
79 | ||
6e557c08 | 80 | /** |
c81415c7 | 81 | * Translate human readable single answer option |
82 | * to internal code number | |
6e557c08 | 83 | * @param string name true/false |
84 | * @return int internal code number | |
c81415c7 | 85 | */ |
84769fd8 | 86 | function trans_single( $name ) { |
2da44816 | 87 | $name = trim($name); |
88 | if ($name == "false" || !$name) { | |
89 | return 0; | |
90 | } else { | |
91 | return 1; | |
92 | } | |
84769fd8 | 93 | } |
94 | ||
6e557c08 | 95 | /** |
c81415c7 | 96 | * process text string from xml file |
6e557c08 | 97 | * @param array $text bit of xml tree after ['text'] |
98 | * @return string processed text | |
c81415c7 | 99 | */ |
84769fd8 | 100 | function import_text( $text ) { |
17102269 | 101 | // quick sanity check |
102 | if (empty($text)) { | |
103 | return ''; | |
104 | } | |
84769fd8 | 105 | $data = $text[0]['#']; |
294ce987 | 106 | return trim($data); |
84769fd8 | 107 | } |
108 | ||
46013523 | 109 | /** |
110 | * return the value of a node, given a path to the node | |
111 | * if it doesn't exist return the default value | |
112 | * @param array xml data to read | |
88bc20c3 | 113 | * @param array path path to node expressed as array |
114 | * @param mixed default | |
46013523 | 115 | * @param bool istext process as text |
116 | * @param string error if set value must exist, return false and issue message if not | |
117 | * @return mixed value | |
118 | */ | |
119 | function getpath( $xml, $path, $default, $istext=false, $error='' ) { | |
120 | foreach ($path as $index) { | |
228b6f6b | 121 | if (!isset($xml[$index])) { |
46013523 | 122 | if (!empty($error)) { |
123 | $this->error( $error ); | |
124 | return false; | |
125 | } else { | |
126 | return $default; | |
127 | } | |
128 | } | |
129 | else $xml = $xml[$index]; | |
130 | } | |
131 | if ($istext) { | |
fc22da99 | 132 | if (!is_string($xml)) { |
c95defa9 | 133 | $this->error( get_string('invalidxml','qformat_xml') ); |
fc22da99 | 134 | } |
294ce987 | 135 | $xml = trim( $xml ); |
46013523 | 136 | } |
137 | ||
138 | return $xml; | |
139 | } | |
140 | ||
141 | ||
6e557c08 | 142 | /** |
c81415c7 | 143 | * import parts of question common to all types |
e7ef42f5 | 144 | * @param $question array question question array from xml tree |
6e557c08 | 145 | * @return object question object |
c81415c7 | 146 | */ |
84769fd8 | 147 | function import_headers( $question ) { |
46013523 | 148 | // get some error strings |
149 | $error_noname = get_string( 'xmlimportnoname','quiz' ); | |
150 | $error_noquestion = get_string( 'xmlimportnoquestion','quiz' ); | |
151 | ||
84769fd8 | 152 | // this routine initialises the question object |
5bed54e1 | 153 | $qo = $this->defaultquestion(); |
84769fd8 | 154 | |
46013523 | 155 | // question name |
156 | $qo->name = $this->getpath( $question, array('#','name',0,'#','text',0,'#'), '', true, $error_noname ); | |
6af98025 | 157 | $qo->questiontext = $this->getpath( $question, array('#','questiontext',0,'#','text',0,'#'), '', true ); |
688d8753 TH |
158 | $qo->questiontextformat = $this->trans_format($this->getpath( |
159 | $question, array('#','questiontext',0,'@','format'), '')); | |
e7ef42f5 | 160 | $qo->image = $this->getpath( $question, array('#','image',0,'#'), $qo->image ); |
46013523 | 161 | $image_base64 = $this->getpath( $question, array('#','image_base64','0','#'),'' ); |
162 | if (!empty($image_base64)) { | |
cdfaa838 | 163 | $qo->image = $this->importimagefile( $qo->image, $image_base64); |
46013523 | 164 | } |
165 | $qo->generalfeedback = $this->getpath( $question, array('#','generalfeedback',0,'#','text',0,'#'), $qo->generalfeedback, true ); | |
166 | $qo->defaultgrade = $this->getpath( $question, array('#','defaultgrade',0,'#'), $qo->defaultgrade ); | |
167 | $qo->penalty = $this->getpath( $question, array('#','penalty',0,'#'), $qo->penalty ); | |
84769fd8 | 168 | |
169 | return $qo; | |
170 | } | |
171 | ||
6e557c08 | 172 | /** |
c81415c7 | 173 | * import the common parts of a single answer |
6e557c08 | 174 | * @param array answer xml tree for single answer |
175 | * @return object answer object | |
88bc20c3 | 176 | */ |
84769fd8 | 177 | function import_answer( $answer ) { |
81a7a02b | 178 | $fraction = $this->getpath( $answer, array('@','fraction'),0 ); |
179 | $text = $this->getpath( $answer, array('#','text',0,'#'), '', true ); | |
180 | $feedback = $this->getpath( $answer, array('#','feedback',0,'#','text',0,'#'), '', true ); | |
84769fd8 | 181 | |
182 | $ans = null; | |
183 | $ans->answer = $text; | |
184 | $ans->fraction = $fraction / 100; | |
185 | $ans->feedback = $feedback; | |
84769fd8 | 186 | return $ans; |
187 | } | |
188 | ||
6e557c08 | 189 | /** |
88bc20c3 | 190 | * import multiple choice question |
6e557c08 | 191 | * @param array question question array from xml tree |
192 | * @return object question object | |
c81415c7 | 193 | */ |
84769fd8 | 194 | function import_multichoice( $question ) { |
84769fd8 | 195 | // get common parts |
196 | $qo = $this->import_headers( $question ); | |
197 | ||
198 | // 'header' parts particular to multichoice | |
199 | $qo->qtype = MULTICHOICE; | |
81a7a02b | 200 | $single = $this->getpath( $question, array('#','single',0,'#'), 'true' ); |
84769fd8 | 201 | $qo->single = $this->trans_single( $single ); |
81a7a02b | 202 | $shuffleanswers = $this->getpath( $question, array('#','shuffleanswers',0,'#'), 'false' ); |
2377f8dc | 203 | $qo->answernumbering = $this->getpath( $question, array('#','answernumbering',0,'#'), 'abc' ); |
2da44816 | 204 | $qo->shuffleanswers = $this->trans_single($shuffleanswers); |
81a7a02b | 205 | $qo->correctfeedback = $this->getpath( $question, array('#','correctfeedback',0,'#','text',0,'#'), '', true ); |
206 | $qo->partiallycorrectfeedback = $this->getpath( $question, array('#','partiallycorrectfeedback',0,'#','text',0,'#'), '', true ); | |
207 | $qo->incorrectfeedback = $this->getpath( $question, array('#','incorrectfeedback',0,'#','text',0,'#'), '', true ); | |
c0ffeb39 | 208 | |
209 | // There was a time on the 1.8 branch when it could output an empty answernumbering tag, so fix up any found. | |
210 | if (empty($qo->answernumbering)) { | |
211 | $qo->answernumbering = 'abc'; | |
212 | } | |
213 | ||
84769fd8 | 214 | // run through the answers |
88bc20c3 | 215 | $answers = $question['#']['answer']; |
84769fd8 | 216 | $a_count = 0; |
217 | foreach ($answers as $answer) { | |
218 | $ans = $this->import_answer( $answer ); | |
219 | $qo->answer[$a_count] = $ans->answer; | |
220 | $qo->fraction[$a_count] = $ans->fraction; | |
221 | $qo->feedback[$a_count] = $ans->feedback; | |
222 | ++$a_count; | |
223 | } | |
84769fd8 | 224 | return $qo; |
225 | } | |
226 | ||
6e557c08 | 227 | /** |
c81415c7 | 228 | * import cloze type question |
6e557c08 | 229 | * @param array question question array from xml tree |
230 | * @return object question object | |
c81415c7 | 231 | */ |
7b8bc256 | 232 | function import_multianswer( $questions ) { |
0c6b4d2e | 233 | $questiontext = $questions['#']['questiontext'][0]['#']['text']; |
234 | $qo = qtype_multianswer_extract_question($this->import_text($questiontext)); | |
7b8bc256 | 235 | |
236 | // 'header' parts particular to multianswer | |
237 | $qo->qtype = MULTIANSWER; | |
238 | $qo->course = $this->course; | |
4ab4dcb2 | 239 | $qo->generalfeedback = $this->getpath( $questions, array('#','generalfeedback',0,'#','text',0,'#'), '', true ); |
7b8bc256 | 240 | |
71ffbac2 | 241 | if (!empty($questions)) { |
7b8bc256 | 242 | $qo->name = $this->import_text( $questions['#']['name'][0]['#']['text'] ); |
243 | } | |
244 | ||
245 | return $qo; | |
246 | } | |
247 | ||
6e557c08 | 248 | /** |
c81415c7 | 249 | * import true/false type question |
6e557c08 | 250 | * @param array question question array from xml tree |
251 | * @return object question object | |
c81415c7 | 252 | */ |
84769fd8 | 253 | function import_truefalse( $question ) { |
84769fd8 | 254 | // get common parts |
fef8f84e | 255 | global $OUTPUT; |
84769fd8 | 256 | $qo = $this->import_headers( $question ); |
257 | ||
258 | // 'header' parts particular to true/false | |
259 | $qo->qtype = TRUEFALSE; | |
260 | ||
261 | // get answer info | |
3246ed33 | 262 | // |
263 | // In the past, it used to be assumed that the two answers were in the file | |
264 | // true first, then false. Howevever that was not always true. Now, we | |
265 | // try to match on the answer text, but in old exports, this will be a localised | |
266 | // string, so if we don't find true or false, we fall back to the old system. | |
267 | $first = true; | |
268 | $warning = false; | |
269 | foreach ($question['#']['answer'] as $answer) { | |
81a7a02b | 270 | $answertext = $this->getpath( $answer, array('#','text',0,'#'), '', true ); |
271 | $feedback = $this->getpath($answer, array('#','feedback',0,'#','text',0,'#'), '', true ); | |
3246ed33 | 272 | if ($answertext != 'true' && $answertext != 'false') { |
273 | $warning = true; | |
274 | $answertext = $first ? 'true' : 'false'; // Old style file, assume order is true/false. | |
88bc20c3 | 275 | } |
3246ed33 | 276 | if ($answertext == 'true') { |
277 | $qo->answer = ($answer['@']['fraction'] == 100); | |
7939a4a0 | 278 | $qo->correctanswer = $qo->answer; |
3246ed33 | 279 | $qo->feedbacktrue = $feedback; |
280 | } else { | |
281 | $qo->answer = ($answer['@']['fraction'] != 100); | |
7939a4a0 | 282 | $qo->correctanswer = $qo->answer; |
3246ed33 | 283 | $qo->feedbackfalse = $feedback; |
284 | } | |
285 | $first = false; | |
84769fd8 | 286 | } |
3246ed33 | 287 | |
288 | if ($warning) { | |
289 | $a = new stdClass; | |
55c54868 | 290 | $a->questiontext = $qo->questiontext; |
3246ed33 | 291 | $a->answer = get_string($qo->answer ? 'true' : 'false', 'quiz'); |
fef8f84e | 292 | echo $OUTPUT->notification(get_string('truefalseimporterror', 'quiz', $a)); |
84769fd8 | 293 | } |
84769fd8 | 294 | return $qo; |
295 | } | |
296 | ||
6e557c08 | 297 | /** |
c81415c7 | 298 | * import short answer type question |
6e557c08 | 299 | * @param array question question array from xml tree |
300 | * @return object question object | |
c81415c7 | 301 | */ |
84769fd8 | 302 | function import_shortanswer( $question ) { |
84769fd8 | 303 | // get common parts |
304 | $qo = $this->import_headers( $question ); | |
305 | ||
306 | // header parts particular to shortanswer | |
307 | $qo->qtype = SHORTANSWER; | |
308 | ||
309 | // get usecase | |
46013523 | 310 | $qo->usecase = $this->getpath($question, array('#','usecase',0,'#'), $qo->usecase ); |
84769fd8 | 311 | |
312 | // run through the answers | |
88bc20c3 | 313 | $answers = $question['#']['answer']; |
84769fd8 | 314 | $a_count = 0; |
315 | foreach ($answers as $answer) { | |
316 | $ans = $this->import_answer( $answer ); | |
317 | $qo->answer[$a_count] = $ans->answer; | |
318 | $qo->fraction[$a_count] = $ans->fraction; | |
319 | $qo->feedback[$a_count] = $ans->feedback; | |
320 | ++$a_count; | |
321 | } | |
322 | ||
323 | return $qo; | |
324 | } | |
88bc20c3 | 325 | |
6e557c08 | 326 | /** |
c81415c7 | 327 | * import description type question |
6e557c08 | 328 | * @param array question question array from xml tree |
329 | * @return object question object | |
c81415c7 | 330 | */ |
7b8bc256 | 331 | function import_description( $question ) { |
332 | // get common parts | |
333 | $qo = $this->import_headers( $question ); | |
334 | // header parts particular to shortanswer | |
335 | $qo->qtype = DESCRIPTION; | |
3f5633df | 336 | $qo->defaultgrade = 0; |
337 | $qo->length = 0; | |
7b8bc256 | 338 | return $qo; |
339 | } | |
84769fd8 | 340 | |
6e557c08 | 341 | /** |
c81415c7 | 342 | * import numerical type question |
6e557c08 | 343 | * @param array question question array from xml tree |
344 | * @return object question object | |
c81415c7 | 345 | */ |
346 | function import_numerical( $question ) { | |
84769fd8 | 347 | // get common parts |
348 | $qo = $this->import_headers( $question ); | |
349 | ||
350 | // header parts particular to numerical | |
351 | $qo->qtype = NUMERICAL; | |
352 | ||
353 | // get answers array | |
354 | $answers = $question['#']['answer']; | |
355 | $qo->answer = array(); | |
356 | $qo->feedback = array(); | |
357 | $qo->fraction = array(); | |
358 | $qo->tolerance = array(); | |
359 | foreach ($answers as $answer) { | |
55c54868 | 360 | // answer outside of <text> is deprecated |
81a7a02b | 361 | $answertext = trim( $this->getpath( $answer, array('#',0), '' ) ); |
362 | $qo->answer[] = $this->getpath( $answer, array('#','text',0,'#'), $answertext, true ); | |
363 | if (empty($qo->answer)) { | |
364 | $qo->answer = '*'; | |
55c54868 | 365 | } |
81a7a02b | 366 | $qo->feedback[] = $this->getpath( $answer, array('#','feedback',0,'#','text',0,'#'), '', true ); |
367 | $qo->tolerance[] = $this->getpath( $answer, array('#','tolerance',0,'#'), 0 ); | |
55c54868 | 368 | |
369 | // fraction as a tag is deprecated | |
81a7a02b | 370 | $fraction = $this->getpath( $answer, array('@','fraction'), 0 ) / 100; |
371 | $qo->fraction[] = $this->getpath( $answer, array('#','fraction',0,'#'), $fraction ); // deprecated | |
84769fd8 | 372 | } |
373 | ||
374 | // get units array | |
84769fd8 | 375 | $qo->unit = array(); |
81a7a02b | 376 | $units = $this->getpath( $question, array('#','units',0,'#','unit'), array() ); |
377 | if (!empty($units)) { | |
a0d187bf | 378 | $qo->multiplier = array(); |
379 | foreach ($units as $unit) { | |
81a7a02b | 380 | $qo->multiplier[] = $this->getpath( $unit, array('#','multiplier',0,'#'), 1 ); |
381 | $qo->unit[] = $this->getpath( $unit, array('#','unit_name',0,'#'), '', true ); | |
a0d187bf | 382 | } |
84769fd8 | 383 | } |
84769fd8 | 384 | return $qo; |
385 | } | |
386 | ||
6e557c08 | 387 | /** |
c81415c7 | 388 | * import matching type question |
6e557c08 | 389 | * @param array question question array from xml tree |
390 | * @return object question object | |
c81415c7 | 391 | */ |
51bcdf28 | 392 | function import_matching( $question ) { |
51bcdf28 | 393 | // get common parts |
394 | $qo = $this->import_headers( $question ); | |
395 | ||
396 | // header parts particular to matching | |
397 | $qo->qtype = MATCH; | |
81a7a02b | 398 | $qo->shuffleanswers = $this->getpath( $question, array( '#','shuffleanswers',0,'#' ), 1 ); |
51bcdf28 | 399 | |
400 | // get subquestions | |
401 | $subquestions = $question['#']['subquestion']; | |
402 | $qo->subquestions = array(); | |
403 | $qo->subanswers = array(); | |
404 | ||
405 | // run through subquestions | |
406 | foreach ($subquestions as $subquestion) { | |
81a7a02b | 407 | $qo->subquestions[] = $this->getpath( $subquestion, array('#','text',0,'#'), '', true ); |
408 | $qo->subanswers[] = $this->getpath( $subquestion, array('#','answer',0,'#','text',0,'#'), '', true); | |
51bcdf28 | 409 | } |
51bcdf28 | 410 | return $qo; |
411 | } | |
412 | ||
6e557c08 | 413 | /** |
c81415c7 | 414 | * import essay type question |
6e557c08 | 415 | * @param array question question array from xml tree |
416 | * @return object question object | |
c81415c7 | 417 | */ |
418 | function import_essay( $question ) { | |
419 | // get common parts | |
420 | $qo = $this->import_headers( $question ); | |
421 | ||
422 | // header parts particular to essay | |
423 | $qo->qtype = ESSAY; | |
424 | ||
425 | // get feedback | |
88bc20c3 | 426 | $qo->feedback = $this->getpath( $question, array('#','answer',0,'#','feedback',0,'#','text',0,'#'), '', true ); |
55c54868 | 427 | |
428 | // get fraction - <fraction> tag is deprecated | |
6af98025 | 429 | $qo->fraction = $this->getpath( $question, array('@','fraction'), 0 ) / 100; |
430 | $q0->fraction = $this->getpath( $question, array('#','fraction',0,'#'), $qo->fraction ); | |
c81415c7 | 431 | |
432 | return $qo; | |
433 | } | |
84769fd8 | 434 | |
725ba2a0 | 435 | function import_calculated( $question ) { |
04d8268d | 436 | // import calculated question |
725ba2a0 | 437 | |
438 | // get common parts | |
439 | $qo = $this->import_headers( $question ); | |
440 | ||
04d8268d | 441 | // header parts particular to calculated |
725ba2a0 | 442 | $qo->qtype = CALCULATED ;//CALCULATED; |
505f7342 | 443 | $qo->synchronize = $this->getpath( $question, array( '#','synchronize',0,'#' ), 0 ); |
04d8268d PP |
444 | $single = $this->getpath( $question, array('#','single',0,'#'), 'true' ); |
445 | $qo->single = $this->trans_single( $single ); | |
446 | $shuffleanswers = $this->getpath( $question, array('#','shuffleanswers',0,'#'), 'false' ); | |
447 | $qo->answernumbering = $this->getpath( $question, array('#','answernumbering',0,'#'), 'abc' ); | |
448 | $qo->shuffleanswers = $this->trans_single($shuffleanswers); | |
449 | $qo->correctfeedback = $this->getpath( $question, array('#','correctfeedback',0,'#','text',0,'#'), '', true ); | |
450 | $qo->partiallycorrectfeedback = $this->getpath( $question, array('#','partiallycorrectfeedback',0,'#','text',0,'#'), '', true ); | |
451 | $qo->incorrectfeedback = $this->getpath( $question, array('#','incorrectfeedback',0,'#','text',0,'#'), '', true ); | |
452 | $qo->unitgradingtype = $this->getpath( $question, array('#','unitgradingtype',0,'#'), 0 ); | |
453 | $qo->unitpenalty = $this->getpath( $question, array('#','unitpenalty',0,'#'), 0 ); | |
454 | $qo->showunits = $this->getpath( $question, array('#','showunits',0,'#'), 0 ); | |
455 | $qo->unitsleft = $this->getpath( $question, array('#','unitsleft',0,'#'), 0 ); | |
456 | $qo->instructions = $this->getpath( $question, array('#','instructions',0,'#','text',0,'#'), '', true ); | |
725ba2a0 | 457 | // get answers array |
458 | // echo "<pre> question";print_r($question);echo "</pre>"; | |
459 | $answers = $question['#']['answer']; | |
460 | $qo->answers = array(); | |
461 | $qo->feedback = array(); | |
462 | $qo->fraction = array(); | |
463 | $qo->tolerance = array(); | |
464 | $qo->tolerancetype = array(); | |
465 | $qo->correctanswerformat = array(); | |
466 | $qo->correctanswerlength = array(); | |
467 | $qo->feedback = array(); | |
468 | foreach ($answers as $answer) { | |
469 | // answer outside of <text> is deprecated | |
470 | if (!empty( $answer['#']['text'] )) { | |
471 | $answertext = $this->import_text( $answer['#']['text'] ); | |
472 | } | |
473 | else { | |
474 | $answertext = trim($answer['#'][0]); | |
475 | } | |
476 | if ($answertext == '') { | |
477 | $qo->answers[] = '*'; | |
478 | } else { | |
479 | $qo->answers[] = $answertext; | |
480 | } | |
481 | $qo->feedback[] = $this->import_text( $answer['#']['feedback'][0]['#']['text'] ); | |
482 | $qo->tolerance[] = $answer['#']['tolerance'][0]['#']; | |
483 | // fraction as a tag is deprecated | |
484 | if (!empty($answer['#']['fraction'][0]['#'])) { | |
485 | $qo->fraction[] = $answer['#']['fraction'][0]['#']; | |
486 | } | |
487 | else { | |
488 | $qo->fraction[] = $answer['@']['fraction'] / 100; | |
489 | } | |
490 | $qo->tolerancetype[] = $answer['#']['tolerancetype'][0]['#']; | |
491 | $qo->correctanswerformat[] = $answer['#']['correctanswerformat'][0]['#']; | |
492 | $qo->correctanswerlength[] = $answer['#']['correctanswerlength'][0]['#']; | |
493 | } | |
494 | // get units array | |
495 | $qo->unit = array(); | |
496 | if (isset($question['#']['units'][0]['#']['unit'])) { | |
497 | $units = $question['#']['units'][0]['#']['unit']; | |
498 | $qo->multiplier = array(); | |
499 | foreach ($units as $unit) { | |
500 | $qo->multiplier[] = $unit['#']['multiplier'][0]['#']; | |
501 | $qo->unit[] = $unit['#']['unit_name'][0]['#']; | |
502 | } | |
503 | } | |
504 | $datasets = $question['#']['dataset_definitions'][0]['#']['dataset_definition']; | |
505 | $qo->dataset = array(); | |
506 | $qo->datasetindex= 0 ; | |
507 | foreach ($datasets as $dataset) { | |
508 | $qo->datasetindex++; | |
509 | $qo->dataset[$qo->datasetindex] = new stdClass(); | |
510 | $qo->dataset[$qo->datasetindex]->status = $this->import_text( $dataset['#']['status'][0]['#']['text']); | |
511 | $qo->dataset[$qo->datasetindex]->name = $this->import_text( $dataset['#']['name'][0]['#']['text']); | |
512 | $qo->dataset[$qo->datasetindex]->type = $dataset['#']['type'][0]['#']; | |
513 | $qo->dataset[$qo->datasetindex]->distribution = $this->import_text( $dataset['#']['distribution'][0]['#']['text']); | |
514 | $qo->dataset[$qo->datasetindex]->max = $this->import_text( $dataset['#']['maximum'][0]['#']['text']); | |
515 | $qo->dataset[$qo->datasetindex]->min = $this->import_text( $dataset['#']['minimum'][0]['#']['text']); | |
516 | $qo->dataset[$qo->datasetindex]->length = $this->import_text( $dataset['#']['decimals'][0]['#']['text']); | |
517 | $qo->dataset[$qo->datasetindex]->distribution = $this->import_text( $dataset['#']['distribution'][0]['#']['text']); | |
518 | $qo->dataset[$qo->datasetindex]->itemcount = $dataset['#']['itemcount'][0]['#']; | |
519 | $qo->dataset[$qo->datasetindex]->datasetitem = array(); | |
520 | $qo->dataset[$qo->datasetindex]->itemindex = 0; | |
521 | $qo->dataset[$qo->datasetindex]->number_of_items=$dataset['#']['number_of_items'][0]['#']; | |
522 | $datasetitems = $dataset['#']['dataset_items'][0]['#']['dataset_item']; | |
523 | foreach ($datasetitems as $datasetitem) { | |
524 | $qo->dataset[$qo->datasetindex]->itemindex++; | |
525 | $qo->dataset[$qo->datasetindex]->datasetitem[$qo->dataset[$qo->datasetindex]->itemindex] = new stdClass(); | |
526 | $qo->dataset[$qo->datasetindex]->datasetitem[$qo->dataset[$qo->datasetindex]->itemindex]->itemnumber = $datasetitem['#']['number'][0]['#']; //[0]['#']['number'][0]['#'] ; // [0]['numberitems'] ;//['#']['number'][0]['#'];// $datasetitems['#']['number'][0]['#']; | |
527 | $qo->dataset[$qo->datasetindex]->datasetitem[$qo->dataset[$qo->datasetindex]->itemindex]->value = $datasetitem['#']['value'][0]['#'] ;//$datasetitem['#']['value'][0]['#']; | |
88bc20c3 | 528 | } |
725ba2a0 | 529 | } |
88bc20c3 | 530 | |
5fd8f999 | 531 | // echo "<pre>loaded qo";print_r($qo);echo "</pre>"; |
725ba2a0 | 532 | |
533 | return $qo; | |
534 | } | |
535 | ||
ee259d0c | 536 | /** |
537 | * this is not a real question type. It's a dummy type used | |
538 | * to specify the import category | |
539 | * format is: | |
540 | * <question type="category"> | |
541 | * <category>tom/dick/harry</category> | |
542 | * </question> | |
543 | */ | |
544 | function import_category( $question ) { | |
0c6b4d2e | 545 | $qo = new stdClass; |
ee259d0c | 546 | $qo->qtype = 'category'; |
86b68520 | 547 | $qo->category = $this->import_text($question['#']['category'][0]['#']['text']); |
ee259d0c | 548 | return $qo; |
549 | } | |
550 | ||
c81415c7 | 551 | /** |
552 | * parse the array of lines into an array of questions | |
553 | * this *could* burn memory - but it won't happen that much | |
554 | * so fingers crossed! | |
6e557c08 | 555 | * @param array lines array of lines from the input file |
556 | * @return array (of objects) question objects | |
c81415c7 | 557 | */ |
558 | function readquestions($lines) { | |
84769fd8 | 559 | // we just need it as one big string |
560 | $text = implode($lines, " "); | |
561 | unset( $lines ); | |
562 | ||
563 | // this converts xml to big nasty data structure | |
564 | // the 0 means keep white space as it is (important for markdown format) | |
565 | // print_r it if you want to see what it looks like! | |
88bc20c3 | 566 | $xml = xmlize( $text, 0 ); |
84769fd8 | 567 | |
568 | // set up array to hold all our questions | |
569 | $questions = array(); | |
570 | ||
571 | // iterate through questions | |
572 | foreach ($xml['quiz']['#']['question'] as $question) { | |
573 | $question_type = $question['@']['type']; | |
574 | $questiontype = get_string( 'questiontype','quiz',$question_type ); | |
84769fd8 | 575 | |
576 | if ($question_type=='multichoice') { | |
577 | $qo = $this->import_multichoice( $question ); | |
88bc20c3 | 578 | } |
84769fd8 | 579 | elseif ($question_type=='truefalse') { |
580 | $qo = $this->import_truefalse( $question ); | |
581 | } | |
582 | elseif ($question_type=='shortanswer') { | |
583 | $qo = $this->import_shortanswer( $question ); | |
584 | } | |
585 | elseif ($question_type=='numerical') { | |
586 | $qo = $this->import_numerical( $question ); | |
587 | } | |
7b8bc256 | 588 | elseif ($question_type=='description') { |
589 | $qo = $this->import_description( $question ); | |
590 | } | |
51bcdf28 | 591 | elseif ($question_type=='matching') { |
592 | $qo = $this->import_matching( $question ); | |
593 | } | |
7b8bc256 | 594 | elseif ($question_type=='cloze') { |
c81415c7 | 595 | $qo = $this->import_multianswer( $question ); |
596 | } | |
597 | elseif ($question_type=='essay') { | |
598 | $qo = $this->import_essay( $question ); | |
7b8bc256 | 599 | } |
725ba2a0 | 600 | elseif ($question_type=='calculated') { |
601 | $qo = $this->import_calculated( $question ); | |
602 | } | |
9c1c6c7f | 603 | elseif ($question_type=='calculatedsimple') { |
604 | $qo = $this->import_calculated( $question ); | |
605 | $qo->qtype = CALCULATEDSIMPLE ; | |
606 | } | |
04d8268d PP |
607 | elseif ($question_type=='calculatedmulti') { |
608 | $qo = $this->import_calculated( $question ); | |
609 | $qo->qtype = CALCULATEDMULTI ; | |
610 | } | |
ee259d0c | 611 | elseif ($question_type=='category') { |
612 | $qo = $this->import_category( $question ); | |
613 | } | |
84769fd8 | 614 | else { |
a41e3287 | 615 | // try for plugin support |
88bc20c3 | 616 | // no default question, as the plugin can call |
a41e3287 | 617 | // import_headers() itself if it wants to |
88bc20c3 | 618 | if (!$qo = $this->try_importing_using_qtypes( $question, null, null, $question_type)) { |
a41e3287 | 619 | $notsupported = get_string( 'xmltypeunsupported','quiz',$question_type ); |
620 | $this->error( $notsupported ); | |
621 | $qo = null; | |
622 | } | |
84769fd8 | 623 | } |
624 | ||
625 | // stick the result in the $questions array | |
626 | if ($qo) { | |
627 | $questions[] = $qo; | |
628 | } | |
629 | } | |
84769fd8 | 630 | return $questions; |
631 | } | |
632 | ||
633 | // EXPORT FUNCTIONS START HERE | |
634 | ||
84769fd8 | 635 | function export_file_extension() { |
636 | // override default type so extension is .xml | |
88bc20c3 | 637 | |
84769fd8 | 638 | return ".xml"; |
639 | } | |
640 | ||
c81415c7 | 641 | |
642 | /** | |
643 | * Turn the internal question code into a human readable form | |
644 | * (The code used to be numeric, but this remains as some of | |
645 | * the names don't match the new internal format) | |
6e557c08 | 646 | * @param mixed type_id Internal code |
647 | * @return string question type string | |
c81415c7 | 648 | */ |
84769fd8 | 649 | function get_qtype( $type_id ) { |
84769fd8 | 650 | switch( $type_id ) { |
651 | case TRUEFALSE: | |
652 | $name = 'truefalse'; | |
653 | break; | |
654 | case MULTICHOICE: | |
655 | $name = 'multichoice'; | |
656 | break; | |
657 | case SHORTANSWER: | |
658 | $name = 'shortanswer'; | |
659 | break; | |
660 | case NUMERICAL: | |
661 | $name = 'numerical'; | |
662 | break; | |
663 | case MATCH: | |
664 | $name = 'matching'; | |
665 | break; | |
666 | case DESCRIPTION: | |
667 | $name = 'description'; | |
668 | break; | |
669 | case MULTIANSWER: | |
670 | $name = 'cloze'; | |
671 | break; | |
c81415c7 | 672 | case ESSAY: |
673 | $name = 'essay'; | |
674 | break; | |
725ba2a0 | 675 | case CALCULATED: |
676 | $name = 'calculated'; | |
677 | break; | |
9c1c6c7f | 678 | case CALCULATEDSIMPLE: |
679 | $name = 'calculatedsimple'; | |
680 | break; | |
04d8268d PP |
681 | case CALCULATEDMULTI: |
682 | $name = 'calculatedmulti'; | |
683 | break; | |
84769fd8 | 684 | default: |
a41e3287 | 685 | $name = false; |
84769fd8 | 686 | } |
687 | return $name; | |
688 | } | |
689 | ||
6e557c08 | 690 | /** |
c81415c7 | 691 | * Convert internal Moodle text format code into |
692 | * human readable form | |
6e557c08 | 693 | * @param int id internal code |
694 | * @return string format text | |
c81415c7 | 695 | */ |
84769fd8 | 696 | function get_format( $id ) { |
84769fd8 | 697 | switch( $id ) { |
698 | case 0: | |
699 | $name = "moodle_auto_format"; | |
700 | break; | |
701 | case 1: | |
702 | $name = "html"; | |
703 | break; | |
704 | case 2: | |
705 | $name = "plain_text"; | |
706 | break; | |
707 | case 3: | |
708 | $name = "wiki_like"; | |
709 | break; | |
710 | case 4: | |
711 | $name = "markdown"; | |
712 | break; | |
713 | default: | |
714 | $name = "unknown"; | |
715 | } | |
716 | return $name; | |
717 | } | |
718 | ||
6e557c08 | 719 | /** |
88bc20c3 | 720 | * Convert internal single question code into |
c81415c7 | 721 | * human readable form |
6e557c08 | 722 | * @param int id single question code |
723 | * @return string single question string | |
c81415c7 | 724 | */ |
84769fd8 | 725 | function get_single( $id ) { |
84769fd8 | 726 | switch( $id ) { |
727 | case 0: | |
728 | $name = "false"; | |
729 | break; | |
730 | case 1: | |
731 | $name = "true"; | |
732 | break; | |
733 | default: | |
734 | $name = "unknown"; | |
735 | } | |
736 | return $name; | |
737 | } | |
738 | ||
6e557c08 | 739 | /** |
88bc20c3 | 740 | * generates <text></text> tags, processing raw text therein |
6e557c08 | 741 | * @param int ilev the current indent level |
742 | * @param boolean short stick it on one line | |
743 | * @return string formatted text | |
c81415c7 | 744 | */ |
84769fd8 | 745 | function writetext( $raw, $ilev=0, $short=true) { |
84769fd8 | 746 | $indent = str_repeat( " ",$ilev ); |
747 | ||
3695cfa9 | 748 | // if required add CDATA tags |
749 | if (!empty($raw) and (htmlspecialchars($raw)!=$raw)) { | |
750 | $raw = "<![CDATA[$raw]]>"; | |
751 | } | |
84769fd8 | 752 | |
753 | if ($short) { | |
754 | $xml = "$indent<text>$raw</text>\n"; | |
755 | } | |
756 | else { | |
757 | $xml = "$indent<text>\n$raw\n$indent</text>\n"; | |
758 | } | |
759 | ||
760 | return $xml; | |
761 | } | |
88bc20c3 | 762 | |
81a7a02b | 763 | function xmltidy( $content ) { |
764 | // can only do this if tidy is installed | |
765 | if (extension_loaded('tidy')) { | |
766 | $config = array( 'input-xml'=>true, 'output-xml'=>true, 'indent'=>true, 'wrap'=>0 ); | |
767 | $tidy = new tidy; | |
768 | $tidy->parseString($content, $config, 'utf8'); | |
88bc20c3 | 769 | $tidy->cleanRepair(); |
81a7a02b | 770 | return $tidy->value; |
771 | } | |
772 | else { | |
773 | return $content; | |
774 | } | |
775 | } | |
776 | ||
84769fd8 | 777 | |
778 | function presave_process( $content ) { | |
779 | // override method to allow us to add xml headers and footers | |
780 | ||
81a7a02b | 781 | // add the xml headers and footers |
46013523 | 782 | $content = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" . |
84769fd8 | 783 | "<quiz>\n" . |
784 | $content . "\n" . | |
785 | "</quiz>"; | |
786 | ||
81a7a02b | 787 | // make the xml look nice |
788 | $content = $this->xmltidy( $content ); | |
789 | ||
84769fd8 | 790 | return $content; |
791 | } | |
792 | ||
6e557c08 | 793 | /** |
c81415c7 | 794 | * Include an image encoded in base 64 |
6e557c08 | 795 | * @param string imagepath The location of the image file |
88bc20c3 | 796 | * @return string xml code segment |
c81415c7 | 797 | */ |
d08e16b2 | 798 | function writeimage( $imagepath ) { |
d08e16b2 | 799 | global $CFG; |
88bc20c3 | 800 | |
d08e16b2 | 801 | if (empty($imagepath)) { |
802 | return ''; | |
803 | } | |
804 | ||
805 | $courseid = $this->course->id; | |
806 | if (!$binary = file_get_contents( "{$CFG->dataroot}/$courseid/$imagepath" )) { | |
807 | return ''; | |
808 | } | |
809 | ||
294ce987 | 810 | $content = " <image_base64>\n".base64_encode( $binary )."\n". |
d08e16b2 | 811 | "\n </image_base64>\n"; |
812 | return $content; | |
813 | } | |
814 | ||
6e557c08 | 815 | /** |
c81415c7 | 816 | * Turns question into an xml segment |
6e557c08 | 817 | * @param array question question array |
818 | * @return string xml segment | |
c81415c7 | 819 | */ |
84769fd8 | 820 | function writequestion( $question ) { |
fef8f84e | 821 | global $CFG,$QTYPES, $OUTPUT; |
84769fd8 | 822 | // initial string; |
823 | $expout = ""; | |
824 | ||
825 | // add comment | |
826 | $expout .= "\n\n<!-- question: $question->id -->\n"; | |
827 | ||
a41e3287 | 828 | // check question type |
829 | if (!$question_type = $this->get_qtype( $question->qtype )) { | |
830 | // must be a plugin then, so just accept the name supplied | |
831 | $question_type = $question->qtype; | |
46013523 | 832 | } |
833 | ||
84769fd8 | 834 | // add opening tag |
f1abd39f | 835 | // generates specific header for Cloze and category type question |
836 | if ($question->qtype == 'category') { | |
6f8481ec | 837 | $categorypath = $this->writetext( $question->category ); |
f1abd39f | 838 | $expout .= " <question type=\"category\">\n"; |
839 | $expout .= " <category>\n"; | |
6f8481ec | 840 | $expout .= " $categorypath\n"; |
f1abd39f | 841 | $expout .= " </category>\n"; |
842 | $expout .= " </question>\n"; | |
843 | return $expout; | |
88bc20c3 | 844 | } |
f1abd39f | 845 | elseif ($question->qtype != MULTIANSWER) { |
7b8bc256 | 846 | // for all question types except Close |
7b8bc256 | 847 | $name_text = $this->writetext( $question->name ); |
848 | $qtformat = $this->get_format($question->questiontextformat); | |
849 | $question_text = $this->writetext( $question->questiontext ); | |
a4514d91 | 850 | $generalfeedback = $this->writetext( $question->generalfeedback ); |
88bc20c3 | 851 | $expout .= " <question type=\"$question_type\">\n"; |
7b8bc256 | 852 | $expout .= " <name>$name_text</name>\n"; |
853 | $expout .= " <questiontext format=\"$qtformat\">\n"; | |
854 | $expout .= $question_text; | |
88bc20c3 | 855 | $expout .= " </questiontext>\n"; |
7b8bc256 | 856 | $expout .= " <image>{$question->image}</image>\n"; |
857 | $expout .= $this->writeimage($question->image); | |
a4514d91 | 858 | $expout .= " <generalfeedback>\n"; |
859 | $expout .= $generalfeedback; | |
860 | $expout .= " </generalfeedback>\n"; | |
c81415c7 | 861 | $expout .= " <defaultgrade>{$question->defaultgrade}</defaultgrade>\n"; |
7b8bc256 | 862 | $expout .= " <penalty>{$question->penalty}</penalty>\n"; |
863 | $expout .= " <hidden>{$question->hidden}</hidden>\n"; | |
864 | } | |
865 | else { | |
866 | // for Cloze type only | |
7b8bc256 | 867 | $name_text = $this->writetext( $question->name ); |
868 | $question_text = $this->writetext( $question->questiontext ); | |
4ab4dcb2 | 869 | $generalfeedback = $this->writetext( $question->generalfeedback ); |
7b8bc256 | 870 | $expout .= " <question type=\"$question_type\">\n"; |
871 | $expout .= " <name>$name_text</name>\n"; | |
872 | $expout .= " <questiontext>\n"; | |
873 | $expout .= $question_text; | |
874 | $expout .= " </questiontext>\n"; | |
4ab4dcb2 | 875 | $expout .= " <generalfeedback>\n"; |
876 | $expout .= $generalfeedback; | |
877 | $expout .= " </generalfeedback>\n"; | |
7b8bc256 | 878 | } |
879 | ||
d08e16b2 | 880 | if (!empty($question->options->shuffleanswers)) { |
881 | $expout .= " <shuffleanswers>{$question->options->shuffleanswers}</shuffleanswers>\n"; | |
882 | } | |
883 | else { | |
884 | $expout .= " <shuffleanswers>0</shuffleanswers>\n"; | |
885 | } | |
84769fd8 | 886 | |
887 | // output depends on question type | |
888 | switch($question->qtype) { | |
f1abd39f | 889 | case 'category': |
890 | // not a qtype really - dummy used for category switching | |
88bc20c3 | 891 | break; |
84769fd8 | 892 | case TRUEFALSE: |
36e2232e | 893 | foreach ($question->options->answers as $answer) { |
894 | $fraction_pc = round( $answer->fraction * 100 ); | |
3246ed33 | 895 | if ($answer->id == $question->options->trueanswer) { |
896 | $answertext = 'true'; | |
897 | } else { | |
898 | $answertext = 'false'; | |
88bc20c3 | 899 | } |
36e2232e | 900 | $expout .= " <answer fraction=\"$fraction_pc\">\n"; |
3246ed33 | 901 | $expout .= $this->writetext($answertext, 3) . "\n"; |
36e2232e | 902 | $expout .= " <feedback>\n"; |
903 | $expout .= $this->writetext( $answer->feedback,4,false ); | |
904 | $expout .= " </feedback>\n"; | |
905 | $expout .= " </answer>\n"; | |
906 | } | |
84769fd8 | 907 | break; |
908 | case MULTICHOICE: | |
909 | $expout .= " <single>".$this->get_single($question->options->single)."</single>\n"; | |
307f045f | 910 | $expout .= " <shuffleanswers>".$this->get_single($question->options->shuffleanswers)."</shuffleanswers>\n"; |
911 | $expout .= " <correctfeedback>".$this->writetext($question->options->correctfeedback, 3)."</correctfeedback>\n"; | |
912 | $expout .= " <partiallycorrectfeedback>".$this->writetext($question->options->partiallycorrectfeedback, 3)."</partiallycorrectfeedback>\n"; | |
913 | $expout .= " <incorrectfeedback>".$this->writetext($question->options->incorrectfeedback, 3)."</incorrectfeedback>\n"; | |
04d8268d | 914 | $expout .= " <answernumbering>".$this->writetext($question->options->answernumbering, 3)."</answernumbering>\n"; |
84769fd8 | 915 | foreach($question->options->answers as $answer) { |
916 | $percent = $answer->fraction * 100; | |
917 | $expout .= " <answer fraction=\"$percent\">\n"; | |
918 | $expout .= $this->writetext( $answer->answer,4,false ); | |
919 | $expout .= " <feedback>\n"; | |
6e557c08 | 920 | $expout .= $this->writetext( $answer->feedback,5,false ); |
84769fd8 | 921 | $expout .= " </feedback>\n"; |
922 | $expout .= " </answer>\n"; | |
923 | } | |
924 | break; | |
925 | case SHORTANSWER: | |
926 | $expout .= " <usecase>{$question->options->usecase}</usecase>\n "; | |
927 | foreach($question->options->answers as $answer) { | |
928 | $percent = 100 * $answer->fraction; | |
929 | $expout .= " <answer fraction=\"$percent\">\n"; | |
930 | $expout .= $this->writetext( $answer->answer,3,false ); | |
931 | $expout .= " <feedback>\n"; | |
932 | $expout .= $this->writetext( $answer->feedback,4,false ); | |
933 | $expout .= " </feedback>\n"; | |
934 | $expout .= " </answer>\n"; | |
935 | } | |
936 | break; | |
937 | case NUMERICAL: | |
938 | foreach ($question->options->answers as $answer) { | |
939 | $tolerance = $answer->tolerance; | |
55c54868 | 940 | $percent = 100 * $answer->fraction; |
941 | $expout .= "<answer fraction=\"$percent\">\n"; | |
942 | // <text> tags are an added feature, old filed won't have them | |
943 | $expout .= " <text>{$answer->answer}</text>\n"; | |
84769fd8 | 944 | $expout .= " <tolerance>$tolerance</tolerance>\n"; |
945 | $expout .= " <feedback>".$this->writetext( $answer->feedback )."</feedback>\n"; | |
55c54868 | 946 | // fraction tag is deprecated |
947 | // $expout .= " <fraction>{$answer->fraction}</fraction>\n"; | |
84769fd8 | 948 | $expout .= "</answer>\n"; |
949 | } | |
950 | ||
951 | $units = $question->options->units; | |
952 | if (count($units)) { | |
953 | $expout .= "<units>\n"; | |
954 | foreach ($units as $unit) { | |
955 | $expout .= " <unit>\n"; | |
956 | $expout .= " <multiplier>{$unit->multiplier}</multiplier>\n"; | |
957 | $expout .= " <unit_name>{$unit->unit}</unit_name>\n"; | |
958 | $expout .= " </unit>\n"; | |
959 | } | |
960 | $expout .= "</units>\n"; | |
961 | } | |
962 | break; | |
963 | case MATCH: | |
964 | foreach($question->options->subquestions as $subquestion) { | |
965 | $expout .= "<subquestion>\n"; | |
966 | $expout .= $this->writetext( $subquestion->questiontext ); | |
967 | $expout .= "<answer>".$this->writetext( $subquestion->answertext )."</answer>\n"; | |
968 | $expout .= "</subquestion>\n"; | |
969 | } | |
970 | break; | |
971 | case DESCRIPTION: | |
c81415c7 | 972 | // nothing more to do for this type |
84769fd8 | 973 | break; |
974 | case MULTIANSWER: | |
7b8bc256 | 975 | $a_count=1; |
976 | foreach($question->options->questions as $question) { | |
9cc41dfd | 977 | $thispattern = preg_quote("{#".$a_count."}"); //TODO: is this really necessary? |
7b8bc256 | 978 | $thisreplace = $question->questiontext; |
6dbcacee | 979 | $expout=preg_replace("~$thispattern~", $thisreplace, $expout ); |
7b8bc256 | 980 | $a_count++; |
981 | } | |
982 | break; | |
c81415c7 | 983 | case ESSAY: |
33ed59a2 | 984 | if (!empty($question->options->answers)) { |
985 | foreach ($question->options->answers as $answer) { | |
986 | $percent = 100 * $answer->fraction; | |
987 | $expout .= "<answer fraction=\"$percent\">\n"; | |
988 | $expout .= " <feedback>".$this->writetext( $answer->feedback )."</feedback>\n"; | |
989 | // fraction tag is deprecated | |
990 | // $expout .= " <fraction>{$answer->fraction}</fraction>\n"; | |
991 | $expout .= "</answer>\n"; | |
992 | } | |
c81415c7 | 993 | } |
725ba2a0 | 994 | break; |
995 | case CALCULATED: | |
9c1c6c7f | 996 | case CALCULATEDSIMPLE: |
04d8268d PP |
997 | case CALCULATEDMULTI: |
998 | $expout .= " <synchronize>{$question->options->synchronize}</synchronize>\n"; | |
999 | $expout .= " <single>{$question->options->single}</single>\n"; | |
1000 | $expout .= " <answernumbering>{$question->options->answernumbering}</answernumbering>\n"; | |
1001 | $expout .= " <shuffleanswers>".$this->writetext($question->options->shuffleanswers, 3)."</shuffleanswers>\n"; | |
1002 | $expout .= " <correctfeedback>".$this->writetext($question->options->correctfeedback, 3)."</correctfeedback>\n"; | |
1003 | $expout .= " <partiallycorrectfeedback>".$this->writetext($question->options->partiallycorrectfeedback, 3)."</partiallycorrectfeedback>\n"; | |
1004 | $expout .= " <incorrectfeedback>".$this->writetext($question->options->incorrectfeedback, 3)."</incorrectfeedback>\n"; | |
725ba2a0 | 1005 | foreach ($question->options->answers as $answer) { |
1006 | $tolerance = $answer->tolerance; | |
1007 | $tolerancetype = $answer->tolerancetype; | |
1008 | $correctanswerlength= $answer->correctanswerlength ; | |
1009 | $correctanswerformat= $answer->correctanswerformat; | |
1010 | $percent = 100 * $answer->fraction; | |
1011 | $expout .= "<answer fraction=\"$percent\">\n"; | |
1012 | // "<text/>" tags are an added feature, old files won't have them | |
1013 | $expout .= " <text>{$answer->answer}</text>\n"; | |
1014 | $expout .= " <tolerance>$tolerance</tolerance>\n"; | |
1015 | $expout .= " <tolerancetype>$tolerancetype</tolerancetype>\n"; | |
1016 | $expout .= " <correctanswerformat>$correctanswerformat</correctanswerformat>\n"; | |
a800639b | 1017 | $expout .= " <correctanswerlength>$correctanswerlength</correctanswerlength>\n"; |
725ba2a0 | 1018 | $expout .= " <feedback>".$this->writetext( $answer->feedback )."</feedback>\n"; |
1019 | $expout .= "</answer>\n"; | |
1020 | } | |
04d8268d PP |
1021 | $expout .= " <unitgradingtype>{$question->options->unitgradingtype}</unitgradingtype>\n"; |
1022 | $expout .= " <unitpenalty>{$question->options->unitpenalty}</unitpenalty>\n"; | |
1023 | $expout .= " <showunits>{$question->options->showunits}</showunits>\n"; | |
1024 | $expout .= " <unitsleft>{$question->options->unitsleft}</unitsleft>\n"; | |
1025 | $expout .= " <instructions>".$this->writetext($question->options->instructions, 3)."</instructions>\n"; | |
725ba2a0 | 1026 | $units = $question->options->units; |
1027 | if (count($units)) { | |
1028 | $expout .= "<units>\n"; | |
1029 | foreach ($units as $unit) { | |
1030 | $expout .= " <unit>\n"; | |
1031 | $expout .= " <multiplier>{$unit->multiplier}</multiplier>\n"; | |
1032 | $expout .= " <unit_name>{$unit->unit}</unit_name>\n"; | |
1033 | $expout .= " </unit>\n"; | |
1034 | } | |
1035 | $expout .= "</units>\n"; | |
88bc20c3 | 1036 | } |
9c1c6c7f | 1037 | //The tag $question->export_process has been set so we get all the data items in the database |
1038 | // from the function $QTYPES['calculated']->get_question_options(&$question); | |
1039 | // calculatedsimple defaults to calculated | |
c9e4ba36 | 1040 | if( isset($question->options->datasets)&&count($question->options->datasets)){// there should be |
725ba2a0 | 1041 | $expout .= "<dataset_definitions>\n"; |
c9e4ba36 | 1042 | foreach ($question->options->datasets as $def) { |
725ba2a0 | 1043 | $expout .= "<dataset_definition>\n"; |
1044 | $expout .= " <status>".$this->writetext($def->status)."</status>\n"; | |
1045 | $expout .= " <name>".$this->writetext($def->name)."</name>\n"; | |
9c1c6c7f | 1046 | if ( $question->qtype == CALCULATED){ |
1047 | $expout .= " <type>calculated</type>\n"; | |
1048 | }else { | |
1049 | $expout .= " <type>calculatedsimple</type>\n"; | |
1050 | } | |
725ba2a0 | 1051 | $expout .= " <distribution>".$this->writetext($def->distribution)."</distribution>\n"; |
1052 | $expout .= " <minimum>".$this->writetext($def->minimum)."</minimum>\n"; | |
1053 | $expout .= " <maximum>".$this->writetext($def->maximum)."</maximum>\n"; | |
88bc20c3 | 1054 | $expout .= " <decimals>".$this->writetext($def->decimals)."</decimals>\n"; |
725ba2a0 | 1055 | $expout .= " <itemcount>$def->itemcount</itemcount>\n"; |
1056 | if ($def->itemcount > 0 ) { | |
1057 | $expout .= " <dataset_items>\n"; | |
1058 | foreach ($def->items as $item ){ | |
1059 | $expout .= " <dataset_item>\n"; | |
1060 | $expout .= " <number>".$item->itemnumber."</number>\n"; | |
1061 | $expout .= " <value>".$item->value."</value>\n"; | |
1062 | $expout .= " </dataset_item>\n"; | |
88bc20c3 | 1063 | } |
725ba2a0 | 1064 | $expout .= " </dataset_items>\n"; |
1065 | $expout .= " <number_of_items>".$def-> number_of_items."</number_of_items>\n"; | |
1066 | } | |
1067 | $expout .= "</dataset_definition>\n"; | |
88bc20c3 | 1068 | } |
1069 | $expout .= "</dataset_definitions>\n"; | |
1070 | } | |
c81415c7 | 1071 | break; |
84769fd8 | 1072 | default: |
a41e3287 | 1073 | // try support by optional plugin |
88bc20c3 | 1074 | if (!$data = $this->try_exporting_using_qtypes( $question->qtype, $question )) { |
fef8f84e | 1075 | echo $OUTPUT->notification( get_string( 'unsupportedexport','qformat_xml',$QTYPES[$question->qtype]->local_name() ) ); |
a41e3287 | 1076 | } |
392238d6 | 1077 | $expout .= $data; |
84769fd8 | 1078 | } |
1079 | ||
1080 | // close the question tag | |
1081 | $expout .= "</question>\n"; | |
1082 | ||
84769fd8 | 1083 | return $expout; |
1084 | } | |
1085 | } | |
1086 | ||
1087 | ?> |