curl now mandatory
[moodle.git] / question / type / calculatedmulti / edit_calculatedmulti_form.php
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1<?php
2/**
3 * Defines the editing form for the calculated question type.
4 *
5 * @copyright &copy; 2007 Jamie Pratt
6 * @author Jamie Pratt me@jamiep.org
7 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
8 * @package questionbank
9 * @subpackage questiontypes
10 */
11
12/**
13 * calculated editing form definition.
14 */
15class question_edit_calculatedmulti_form extends question_edit_form {
16 /**
17 * Handle to the question type for this question.
18 *
19 * @var question_calculatedmulti_qtype
20 */
21 var $qtypeobj;
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22 public $questiondisplay ;
23 public $initialname = '';
24 public $reload = false ;
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25 function question_edit_calculatedmulti_form(&$submiturl, &$question, &$category, &$contexts, $formeditable = true){
26 global $QTYPES, $SESSION, $CFG, $DB;
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27 $this->question = $question;
28 $this->qtypeobj =& $QTYPES[$this->question->qtype];
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29 if ( "1" == optional_param('reload','', PARAM_INT )) {
30 $this->reload = true ;
31 }else {
32 $this->reload = false ;
33 }
34 if(!$this->reload ){ // use database data as this is first pass
35 if(isset($this->question->id )){
36 // remove prefix #{..}# if exists
37 $this->initialname = $question->name ;
38 $regs= array();
39 if(preg_match('~#\{([^[:space:]]*)#~',$question->name , $regs)){
40 $question->name = str_replace($regs[0], '', $question->name);
41 };
42 }
43 }else {
44 }
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45 parent::question_edit_form($submiturl, $question, $category, $contexts, $formeditable);
46 }
47
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48 function get_per_answer_fields(&$mform, $label, $gradeoptions, &$repeatedoptions, &$answersoption) {
49 // $repeated = parent::get_per_answer_fields($mform, $label, $gradeoptions, $repeatedoptions, $answersoption);
50 $repeated = array();
51 $repeated[] =& $mform->createElement('header', 'answerhdr', $label);
52 // if ($this->editasmultichoice == 1){
53 $repeated[] =& $mform->createElement('text', 'answer', get_string('answer', 'quiz'), array('size' => 50));
54 $repeated[] =& $mform->createElement('select', 'fraction', get_string('grade'), $gradeoptions);
55 $repeated[] =& $mform->createElement('htmleditor', 'feedback', get_string('feedback', 'quiz'),
56 array('course' => $this->coursefilesid));
57 $repeatedoptions['answer']['type'] = PARAM_RAW;
58 $repeatedoptions['fraction']['default'] = 0;
59 $answersoption = 'answers';
60
61 $mform->setType('answer', PARAM_NOTAGS);
62
63 $addrepeated = array();
64 $addrepeated[] =& $mform->createElement('hidden', 'tolerance');
65 $addrepeated[] =& $mform->createElement('hidden', 'tolerancetype',1);
66 $repeatedoptions['tolerance']['type'] = PARAM_NUMBER;
67 $repeatedoptions['tolerance']['default'] = 0.01;
68
69 $addrepeated[] =& $mform->createElement('select', 'correctanswerlength', get_string('correctanswershows', 'qtype_calculated'), range(0, 9));
70 $repeatedoptions['correctanswerlength']['default'] = 2;
71
72 $answerlengthformats = array('1' => get_string('decimalformat', 'quiz'), '2' => get_string('significantfiguresformat', 'quiz'));
73 $addrepeated[] =& $mform->createElement('select', 'correctanswerformat', get_string('correctanswershowsformat', 'qtype_calculated'), $answerlengthformats);
74 array_splice($repeated, 3, 0, $addrepeated);
75 $repeated[1]->setLabel('...<strong>{={x}+..}</strong>...');
76
77 return $repeated;
78 }
79
80 /**
81 * Add question-type specific form fields.
82 *
83 * @param MoodleQuickForm $mform the form being built.
84 */
85 function definition_inner(&$mform) {
86 global $QTYPES;
87 $this->qtypeobj =& $QTYPES[$this->qtype()];
88 // echo code left for testing period
89 // echo "<p>question ".optional_param('multichoice', '', PARAM_RAW)." optional<pre>";print_r($this->question);echo "</pre></p>";
d7be65a3 90 $label = get_string("sharedwildcards", "qtype_calculated");
2d279432 91 $mform->addElement('hidden', 'initialcategory', 1);
d90b016b 92 $mform->addElement('hidden', 'reload', 1);
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93 $mform->setType('initialcategory', PARAM_INT);
94
95 // $html2 = $this->qtypeobj->print_dataset_definitions_category($this->question);
96 $html2 ="";
97 $mform->insertElementBefore($mform->createElement('static','listcategory',$label,$html2),'name');
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98 if(isset($this->question->id )){
99 $mform->insertElementBefore($mform->createElement('static','initialname',get_string('questionstoredname','qtype_calculated'),$this->initialname),'name');
100 };
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101 $addfieldsname='updatecategory';
102 $addstring=get_string("updatecategory", "qtype_calculated");
103 $mform->registerNoSubmitButton($addfieldsname);
104 $this->editasmultichoice = 1 ;
105
106
107 $mform->insertElementBefore( $mform->createElement('submit', $addfieldsname, $addstring),'listcategory');
108 $mform->registerNoSubmitButton('createoptionbutton');
109 $mform->addElement('hidden', 'multichoice',$this->editasmultichoice);
110 $mform->setType('multichoice', PARAM_INT);
111
112
d7be65a3 113// $mform->addElement('header', 'choicehdr',get_string('multichoicecalculatedquestion', 'qtype_calculated'));
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114 $menu = array(get_string('answersingleno', 'qtype_multichoice'), get_string('answersingleyes', 'qtype_multichoice'));
115 $mform->addElement('select', 'single', get_string('answerhowmany', 'qtype_multichoice'), $menu);
116 $mform->setDefault('single', 1);
117
118 $mform->addElement('advcheckbox', 'shuffleanswers', get_string('shuffleanswers', 'qtype_multichoice'), null, null, array(0,1));
5fcefc97 119 $mform->addHelpButton('shuffleanswers', 'shuffleanswers', 'qtype_multichoice');
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120 $mform->setDefault('shuffleanswers', 1);
121
122 $numberingoptions = $QTYPES['multichoice']->get_numbering_styles();
123 $menu = array();
124 foreach ($numberingoptions as $numberingoption) {
125 $menu[$numberingoption] = get_string('answernumbering' . $numberingoption, 'qtype_multichoice');
126 }
127 $mform->addElement('select', 'answernumbering', get_string('answernumbering', 'qtype_multichoice'), $menu);
128 $mform->setDefault('answernumbering', 'abc');
129
130 $creategrades = get_grade_options();
131 $this->add_per_answer_fields($mform, get_string('choiceno', 'qtype_multichoice', '{no}'),
132 $creategrades->gradeoptionsfull, max(5, QUESTION_NUMANS_START));
133
134
135 $repeated = array();
136 // if ($this->editasmultichoice == 1){
137 $nounits = optional_param('nounits', 1, PARAM_INT);
138 $mform->addElement('hidden', 'nounits', $nounits);
139 $mform->setType('nounits', PARAM_INT);
140 $mform->setConstants(array('nounits'=>$nounits));
141 for ($i=0; $i< $nounits; $i++) {
142 $mform->addElement('hidden','unit'."[$i]", optional_param('unit'."[$i]", '', PARAM_NOTAGS));
143 $mform->setType('unit'."[$i]", PARAM_NOTAGS);
144 $mform->addElement('hidden', 'multiplier'."[$i]", optional_param('multiplier'."[$i]", '', PARAM_NUMBER));
145 $mform->setType('multiplier'."[$i]", PARAM_NUMBER);
146 }
147 $mform->addElement('hidden','unitgradingtype',optional_param('unitgradingtype', '', PARAM_INT)) ;
148 $mform->addElement('hidden','unitpenalty',optional_param('unitpenalty', '', PARAM_NUMBER)) ;
149 $mform->addElement('hidden','showunits',optional_param('showunits', '', PARAM_INT)) ;
150 $mform->addElement('hidden','unitsleft',optional_param('unitsleft', '', PARAM_INT)) ;
151 $mform->addElement('hidden','instructions',optional_param('instructions', '', PARAM_RAW)) ;
152
153 $mform->setType('addunits','hidden');
154 $mform->addElement('header', 'overallfeedbackhdr', get_string('overallfeedback', 'qtype_multichoice'));
155
156 foreach (array('correctfeedback', 'partiallycorrectfeedback', 'incorrectfeedback') as $feedbackname) {
157 $mform->addElement('htmleditor', $feedbackname, get_string($feedbackname, 'qtype_multichoice'),
158 array('course' => $this->coursefilesid));
159 $mform->setType($feedbackname, PARAM_RAW);
160 }
161 //hidden elements
162 $mform->addElement('hidden', 'synchronize', '');
163 $mform->setType('synchronize', PARAM_INT);
164 if (isset($this->question->options)&& isset($this->question->options->synchronize) ){
165 $mform->setDefault("synchronize", $this->question->options->synchronize);
166 } else {
167 $mform->setDefault("synchronize", 0 );
168 }
169 $mform->addElement('hidden', 'wizard', 'datasetdefinitions');
170 $mform->setType('wizard', PARAM_ALPHA);
171
172
173 }
174
175 function set_data($question) {
176 $default_values['multichoice']= $this->editasmultichoice ; //$this->editasmultichoice ;
177 if (isset($question->options)){
178 $answers = $question->options->answers;
179 if (count($answers)) {
180 $key = 0;
181 foreach ($answers as $answer){
182 $default_values['answer['.$key.']'] = $answer->answer;
183 $default_values['fraction['.$key.']'] = $answer->fraction;
184 $default_values['tolerance['.$key.']'] = $answer->tolerance;
185 $default_values['tolerancetype['.$key.']'] = $answer->tolerancetype;
186 $default_values['correctanswerlength['.$key.']'] = $answer->correctanswerlength;
187 $default_values['correctanswerformat['.$key.']'] = $answer->correctanswerformat;
188 $default_values['feedback['.$key.']'] = $answer->feedback;
189 $key++;
190 }
191 }
192 // $default_values['unitgradingtype'] = $question->options->unitgradingtype ;
193 // $default_values['unitpenalty'] = $question->options->unitpenalty ;
194 // $default_values['showunits'] = $question->options->showunits ;
195 // $default_values['unitsleft'] = $question->options->unitsleft ;
196 // $default_values['instructions'] = $question->options->instructions ;
197 $default_values['synchronize'] = $question->options->synchronize ;
198
199 if (isset($question->options->units)){
200 $units = array_values($question->options->units);
201 // make sure the default unit is at index 0
202 usort($units, create_function('$a, $b',
203 'if (1.0 === (float)$a->multiplier) { return -1; } else '.
204 'if (1.0 === (float)$b->multiplier) { return 1; } else { return 0; }'));
205 if (count($units)) {
206 $key = 0;
207 foreach ($units as $unit){
208 $default_values['unit['.$key.']'] = $unit->unit;
209 $default_values['multiplier['.$key.']'] = $unit->multiplier;
210 $key++;
211 }
212 }
213 }
214 }
215 if (isset($question->options->single)){
216 $default_values['single'] = $question->options->single;
217 $default_values['answernumbering'] = $question->options->answernumbering;
218 $default_values['shuffleanswers'] = $question->options->shuffleanswers;
219 $default_values['correctfeedback'] = $question->options->correctfeedback;
220 $default_values['partiallycorrectfeedback'] = $question->options->partiallycorrectfeedback;
221 $default_values['incorrectfeedback'] = $question->options->incorrectfeedback;
222 }
223 $default_values['submitbutton'] = get_string('nextpage', 'qtype_calculated');
224 $default_values['makecopy'] = get_string('makecopynextpage', 'qtype_calculated');
225 /* set the wild cards category display given that on loading the category element is
226 unselected when processing this function but have a valid value when processing the
227 update category button. The value can be obtain by
228 $qu->category =$this->_form->_elements[$this->_form->_elementIndex['category']]->_values[0];
229 but is coded using existing functions
230 */
231 $qu = new stdClass;
232 $el = new stdClass;
233 /* no need to call elementExists() here */
234 if ($this->_form->elementExists('category')){
235 $el=$this->_form->getElement('category');
236 } else {
237 $el=$this->_form->getElement('categorymoveto');
238 }
239 if($value =$el->getSelected()) {
240 $qu->category =$value[0];
241 }else {
242 $qu->category=$question->category;// on load $question->category is set by question.php
243 }
244 $html2 = $this->qtypeobj->print_dataset_definitions_category($qu);
245 $this->_form->_elements[$this->_form->_elementIndex['listcategory']]->_text = $html2 ;
246 $question = (object)((array)$question + $default_values);
247
248 parent::set_data($question);
249 }
250
251 function qtype() {
252 return 'calculatedmulti';
253 }
254
255 function validation($data, $files) {
256 // echo code left for testing period
257
258 // echo "<p>question <pre>";print_r($this->question);echo "</pre></p>";
259 // echo "<p>data <pre>";print_r($data);echo "</pre></p>";
260
261 $errors = parent::validation($data, $files);
262 //verifying for errors in {=...} in question text;
263 $qtext = "";
264 $qtextremaining = $data['questiontext'] ;
265 $possibledatasets = $this->qtypeobj->find_dataset_names($data['questiontext']);
266 foreach ($possibledatasets as $name => $value) {
267 $qtextremaining = str_replace('{'.$name.'}', '1', $qtextremaining);
268 }
269 // echo "numericalquestion qtextremaining <pre>";print_r($possibledatasets);
270 while (preg_match('~\{=([^[:space:]}]*)}~', $qtextremaining, $regs1)) {
271 $qtextsplits = explode($regs1[0], $qtextremaining, 2);
272 $qtext =$qtext.$qtextsplits[0];
273 $qtextremaining = $qtextsplits[1];
274 if (!empty($regs1[1]) && $formulaerrors = qtype_calculated_find_formula_errors($regs1[1])) {
275 if(!isset($errors['questiontext'])){
276 $errors['questiontext'] = $formulaerrors.':'.$regs1[1] ;
277 }else {
278 $errors['questiontext'] .= '<br/>'.$formulaerrors.':'.$regs1[1];
279 }
280 }
281 }
282 $answers = $data['answer'];
283 $answercount = 0;
284 $maxgrade = false;
285 $possibledatasets = $this->qtypeobj->find_dataset_names($data['questiontext']);
286 $mandatorydatasets = array();
287 foreach ($answers as $key => $answer){
288 $mandatorydatasets += $this->qtypeobj->find_dataset_names($answer);
289 }
290 if ( count($mandatorydatasets )==0){
291 // $errors['questiontext']=get_string('atleastonewildcard', 'qtype_datasetdependent');
292 foreach ($answers as $key => $answer){
293 $errors['answer['.$key.']'] = get_string('atleastonewildcard', 'qtype_datasetdependent');
294 }
295 }
296 if ($data['multichoice']== 1 ){
297 foreach ($answers as $key => $answer){
298 $trimmedanswer = trim($answer);
299 if (($trimmedanswer!='')||$answercount==0){
300 //verifying for errors in {=...} in answer text;
301 $qanswer = "";
302 $qanswerremaining = $trimmedanswer ;
303 $possibledatasets = $this->qtypeobj->find_dataset_names($trimmedanswer);
304 foreach ($possibledatasets as $name => $value) {
305 $qanswerremaining = str_replace('{'.$name.'}', '1', $qanswerremaining);
306 }
307 // echo "numericalquestion qanswerremaining <pre>";print_r($possibledatasets);
308 while (preg_match('~\{=([^[:space:]}]*)}~', $qanswerremaining, $regs1)) {
309 $qanswersplits = explode($regs1[0], $qanswerremaining, 2);
310 $qanswer =$qanswer.$qanswersplits[0];
311 $qanswerremaining = $qanswersplits[1];
312 if (!empty($regs1[1]) && $formulaerrors = qtype_calculated_find_formula_errors($regs1[1])) {
313 if(!isset($errors['answer['.$key.']'])){
314 $errors['answer['.$key.']'] = $formulaerrors.':'.$regs1[1] ;
315 }else {
316 $errors['answer['.$key.']'] .= '<br/>'.$formulaerrors.':'.$regs1[1];
317 }
318 }
319 }
320 }
321 if ($trimmedanswer!=''){
322 if ('2' == $data['correctanswerformat'][$key]
323 && '0' == $data['correctanswerlength'][$key]) {
324 $errors['correctanswerlength['.$key.']'] = get_string('zerosignificantfiguresnotallowed','quiz');
325 }
326 if (!is_numeric($data['tolerance'][$key])){
327 $errors['tolerance['.$key.']'] = get_string('mustbenumeric', 'qtype_calculated');
328 }
329 if ($data['fraction'][$key] == 1) {
330 $maxgrade = true;
331 }
332
333 $answercount++;
334 }
335 //check grades
336 $totalfraction = 0 ;
337 $maxfraction = 0 ;
338 if ($answer != '') {
339 if ($data['fraction'][$key] > 0) {
340 $totalfraction += $data['fraction'][$key];
341 }
342 if ($data['fraction'][$key] > $maxfraction) {
343 $maxfraction = $data['fraction'][$key];
344 }
345 }
346 }
347 if ($answercount==0){
348 $errors['answer[0]'] = get_string('notenoughanswers', 'qtype_multichoice', 2);
349 $errors['answer[1]'] = get_string('notenoughanswers', 'qtype_multichoice', 2);
350 } elseif ($answercount==1){
351 $errors['answer[1]'] = get_string('notenoughanswers', 'qtype_multichoice', 2);
352
353 }
354
355 /// Perform sanity checks on fractional grades
356 if ($data['single']) {
357 if ($maxfraction > 0.999 ) {
358 $maxfraction = $maxfraction * 100;
359 $errors['fraction[0]'] = get_string('errfractionsnomax', 'qtype_multichoice', $maxfraction);
360 }
361 } else {
362 $totalfraction = round($totalfraction,2);
363 if ($totalfraction != 1) {
364 $totalfraction = $totalfraction * 100;
365 $errors['fraction[0]'] = get_string('errfractionsaddwrong', 'qtype_multichoice', $totalfraction);
366 }
367 }
368
369
370 if ($answercount==0){
371 $errors['answer[0]'] = get_string('atleastoneanswer', 'qtype_calculated');
372 }
373 if ($maxgrade == false) {
374 $errors['fraction[0]'] = get_string('fractionsnomax', 'question');
375 }
376
377 }
378 return $errors;
379 }
380}
381