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@@ -0,0 +1,224 @@
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+<?php
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+
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+/* For licensing terms, see /license.txt */
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+
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+/**
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+ * Draggable
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+ *
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+ * @author Angel Fernando Quiroz Campos <angel.quiroz@beeznest.com>
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+ */
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+class Draggable extends Question
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+{
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+
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+ static $typePicture = 'matching.png';
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+ static $explanationLangVar = 'Draggable';
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+
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+ /**
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+ * Class constructor
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+ */
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+ public function __construct()
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+ {
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+ parent::__construct();
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+
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+ $this->type = DRAGGABLE;
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+ $this->isContent = $this->getIsContent();
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+ }
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+
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+ /**
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+ * Function which redefines Question::createAnswersForm
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+ * @param FormValidator $form
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+ */
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+ public function createAnswersForm($form)
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+ {
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+ $defaults = array();
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+ $nb_matches = $nb_options = 2;
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+ $matches = array();
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+
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+ $answer = null;
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+
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+ if ($form->isSubmitted()) {
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+ $nb_matches = $form->getSubmitValue('nb_matches');
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+ $nb_options = $form->getSubmitValue('nb_options');
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+
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+ if (isset($_POST['lessMatches'])) {
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+ $nb_matches--;
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+ }
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+
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+ if (isset($_POST['moreMatches'])) {
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+ $nb_matches++;
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+ }
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+
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+ if (isset($_POST['lessOptions'])) {
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+ $nb_options--;
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+ }
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+
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+ if (isset($_POST['moreOptions'])) {
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+ $nb_options++;
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+ }
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+ } else if (!empty($this->id)) {
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+ $answer = new Answer($this->id);
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+ $answer->read();
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+
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+ if (count($answer->nbrAnswers) > 0) {
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+ $nb_matches = $nb_options = 0;
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+
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+ for ($i = 1; $i <= $answer->nbrAnswers; $i++) {
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+ if ($answer->isCorrect($i)) {
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+ $nb_matches++;
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+ $defaults['answer[' . $nb_matches . ']'] = $answer->selectAnswer($i);
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+ $defaults['weighting[' . $nb_matches . ']'] = float_format($answer->selectWeighting($i), 1);
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+ $defaults['matches[' . $nb_matches . ']'] = $answer->correct[$i];
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+ } else {
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+ $nb_options++;
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+ $defaults['option[' . $nb_options . ']'] = $answer->selectAnswer($i);
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+ }
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+ }
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+ }
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+ } else {
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+ $defaults['answer[1]'] = get_lang('DefaultMakeCorrespond1');
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+ $defaults['answer[2]'] = get_lang('DefaultMakeCorrespond2');
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+ $defaults['matches[2]'] = '2';
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+ $defaults['option[1]'] = get_lang('DefaultMatchingOptA');
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+ $defaults['option[2]'] = get_lang('DefaultMatchingOptB');
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+ }
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+
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+ for ($i = 1; $i <= $nb_matches; ++$i) {
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+ $matches[$i] = $i;
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+ }
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+
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+ $form->addElement('hidden', 'nb_matches', $nb_matches);
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+ $form->addElement('hidden', 'nb_options', $nb_options);
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+
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+ // DISPLAY MATCHES
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+ $html = '<table class="table table-striped table-hover">
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+ <thead>
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+ <tr>
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+ <th width="85%">' . get_lang('Answer') . '</th>
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+ <th width="15%">' . get_lang('MatchesTo') . '</th>
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+ <th width="10">' . get_lang('Weighting') . '</th>
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+ </tr>
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+ </thead>
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+ <tbody>';
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+
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+ $form->addHeader(get_lang('MakeCorrespond'));
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+ $form->addHtml($html);
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+
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+ if ($nb_matches < 1) {
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+ $nb_matches = 1;
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+ Display::display_normal_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
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+ }
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+
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+ for ($i = 1; $i <= $nb_matches; ++$i) {
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+ $renderer = &$form->defaultRenderer();
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+
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error -->{element}</td>',
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+ "answer[$i]"
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+ );
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+
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error -->{element}</td>',
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+ "matches[$i]"
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+ );
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+
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error -->{element}</td>',
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+ "weighting[$i]"
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+ );
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+
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+ $form->addHtml('<tr>');
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+ $form->addText("answer[$i]", null);
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+ $form->addSelect("matches[$i]", null, $matches);
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+ $form->addText("weighting[$i]", null, true, ['value' => 10]);
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+ $form->addHtml('</tr>');
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+ }
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+
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+ $form->addHtml('</tbody></table>');
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+ $group = array();
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+
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+ $renderer->setElementTemplate(
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+ '<div class="form-group"><div class="col-sm-offset-2">{element}',
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+ 'lessMatches'
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+ );
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+ $renderer->setElementTemplate('{element}</div></div>', 'moreMatches');
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+
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+ global $text;
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+
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+ $group = [
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+ $form->addButtonDelete(get_lang('DelElem'), 'lessMatches', true),
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+ $form->addButtonCreate(get_lang('AddElem'), 'moreMatches', true),
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+ $form->addButtonSave($text, 'submitQuestion', true)
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+ ];
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+
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+ $form->addGroup($group);
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+
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+ if (!empty($this->id)) {
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+ $form->setDefaults($defaults);
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+ } else {
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+ if ($this->isContent == 1) {
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+ $form->setDefaults($defaults);
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+ }
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+ }
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+
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+ $form->setConstants(
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+ [
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+ 'nb_matches' => $nb_matches,
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+ 'nb_options' => $nb_options
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+ ]
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+ );
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+ }
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+
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+ /**
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+ * Abstract function which creates the form to create / edit the answers of the question
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+ * @param FormValidator $form
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+ */
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+ public function processAnswersCreation($form)
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+ {
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+ $nb_matches = $form->getSubmitValue('nb_matches');
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+ $this->weighting = 0;
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+ $position = 0;
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+
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+ $objAnswer = new Answer($this->id);
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+
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+ // Insert the options
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+ for ($i = 1; $i <= $nb_matches; ++$i) {
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+ $position++;
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+
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+ $objAnswer->createAnswer($position, 0, '', 0, $position);
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+ }
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+
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+ // Insert the answers
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+ for ($i = 1; $i <= $nb_matches; ++$i) {
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+ $position++;
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+
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+ $answer = $form->getSubmitValue('answer[' . $i . ']');
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+ $matches = $form->getSubmitValue('matches[' . $i . ']');
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+ $weighting = $form->getSubmitValue('weighting[' . $i . ']');
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+ $this->weighting += $weighting;
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+ $objAnswer->createAnswer($answer, $matches, '', $weighting, $position);
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+ }
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+
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+ $objAnswer->save();
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+ $this->save();
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+ }
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+
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+ /**
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+ * Shows question title an description
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+ * @param string $feedback_type
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+ * @param int $counter
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+ * @param float $score
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+ * @return string
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+ */
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+ public function return_header($feedback_type = null, $counter = null, $score = null)
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+ {
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+ $header = parent::return_header($feedback_type, $counter, $score);
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+ $header .= '<table class="' . $this->question_table_class . '">
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+ <tr>
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+ <th>' . get_lang('ElementList') . '</th>
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+ <th>' . get_lang('Status') . '</th>
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+ </tr>';
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+
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+ return $header;
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+ }
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+
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+}
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