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+<?php
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+/* For licensing terms, see /license.txt */
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+
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+/**
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+ * File containing the UNIQUE_ANSWER class.
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+ * @package chamilo.exercise
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+ * @author Eric Marguin
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+ */
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+/**
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+ * Code
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+ */
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+
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+/**
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+ *
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+ * This class allows to instantiate an object of type UNIQUE_ANSWER_IMAGE
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+ * extending the class question
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+ *
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+
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+ * @author Julio Montoya
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+ * @package chamilo.exercise
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+ **/
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+
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+class UniqueAnswerImage extends UniqueAnswer
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+{
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+
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+ static $typePicture = 'mcua.gif';
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+ static $explanationLangVar = 'UniqueSelect';
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+
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+ /**
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+ * Constructor
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+ */
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+ function UniqueAnswerImage()
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+ {
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+ //this is highly important
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+ parent::question();
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+ $this->type = UNIQUE_ANSWER_IMAGE;
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+ $this->isContent = $this->getIsContent();
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+ }
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+
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+ /**
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+ * function which redifines Question::createAnswersForm
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+ * @param the formvalidator instance
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+ * @param the answers number to display
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+ */
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+ function createAnswersForm($form)
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+ {
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+ // Getting the exercise list
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+ $obj_ex = $_SESSION['objExercise'];
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+
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+ $editor_config = array('ToolbarSet' => 'UniqueAnswerImage', 'Width' => '100%', 'Height' => '125');
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+
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+ //this line define how many question by default appear when creating a choice question
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+ $nb_answers = isset($_POST['nb_answers']) ? (int)$_POST['nb_answers'] : 4; // The previous default value was 2. See task #1759.
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+ $nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
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+
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+ $feedback_title = '';
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+ $comment_title = '';
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+
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+ if ($obj_ex->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_END) {
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+ $comment_title = '<th>'.get_lang('Comment').'</th>';
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+ } elseif ($obj_ex->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_DIRECT) {
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+ //Scenario
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+ $editor_config['Width'] = '250';
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+ $editor_config['Height'] = '110';
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+ $comment_title = '<th width="500px" >'.get_lang('Comment').'</th>';
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+ $feedback_title = '<th width="350px" >'.get_lang('Scenario').'</th>';
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+ }
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+
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+ $html = '<table class="data_table">
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+ <tr style="text-align: center;">
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+ <th width="10px">
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+ '.get_lang('Number').'
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+ </th>
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+ <th width="10px" >
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+ '.get_lang('True').'
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+ </th>
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+ <th width="50%">
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+ '.get_lang('Answer').'
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+ </th>
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+ '.$comment_title.'
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+ '.$feedback_title.'
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+ <th width="50px">
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+ '.get_lang('Weighting').'
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+ </th>
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+ </tr>';
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+
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+ $form->addElement('label', get_lang('Answers').'<br /> <img src="../img/fill_field.png">', $html);
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+
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+ $defaults = array();
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+ $correct = 0;
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+ if (!empty($this->id)) {
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+ $answer = new Answer($this->id);
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+ $answer->read();
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+ if (count($answer->nbrAnswers) > 0 && !$form->isSubmitted()) {
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+ $nb_answers = $answer->nbrAnswers;
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+ }
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+ }
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+ $form->addElement('hidden', 'nb_answers');
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+
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+ //Feedback SELECT
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+ $question_list = $obj_ex->selectQuestionList();
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+ $select_question = array();
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+ $select_question[0] = get_lang('SelectTargetQuestion');
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+
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+ require_once '../newscorm/learnpathList.class.php';
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+ if (is_array($question_list)) {
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+ foreach ($question_list as $key => $questionid) {
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+ //To avoid warning messages
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+ if (!is_numeric($questionid)) {
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+ continue;
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+ }
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+ $question = Question::read($questionid);
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+
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+ if ($question) {
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+ $select_question[$questionid] = 'Q'.$key.' :'.cut($question->selectTitle(), 20);
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+ }
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+ }
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+ }
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+ $select_question[-1] = get_lang('ExitTest');
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+
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+ $list = new LearnpathList(api_get_user_id());
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+ $flat_list = $list->get_flat_list();
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+ $select_lp_id = array();
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+ $select_lp_id[0] = get_lang('SelectTargetLP');
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+
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+ foreach ($flat_list as $id => $details) {
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+ $select_lp_id[$id] = cut($details['lp_name'], 20);
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+ }
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+
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+ $temp_scenario = array();
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+
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+ if ($nb_answers < 1) {
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+ $nb_answers = 1;
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+ Display::display_normal_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
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+ }
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+
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+ for ($i = 1; $i <= $nb_answers; ++$i) {
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+ $form->addElement('html', '<tr>');
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+ if (isset($answer) && is_object($answer)) {
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+ if ($answer->correct[$i]) {
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+ $correct = $i;
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+ }
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+ $defaults['answer['.$i.']'] = $answer->answer[$i];
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+ $defaults['comment['.$i.']'] = $answer->comment[$i];
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+ $defaults['weighting['.$i.']'] = float_format($answer->weighting[$i], 1);
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+
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+ $item_list = explode('@@', $answer->destination[$i]);
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+
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+ $try = $item_list[0];
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+ $lp = $item_list[1];
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+ $list_dest = $item_list[2];
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+ $url = $item_list[3];
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+
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+ if ($try == 0) {
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+ $try_result = 0;
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+ } else {
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+ $try_result = 1;
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+ }
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+ if ($url == 0) {
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+ $url_result = '';
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+ } else {
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+ $url_result = $url;
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+ }
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+
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+ $temp_scenario['url'.$i] = $url_result;
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+ $temp_scenario['try'.$i] = $try_result;
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+ $temp_scenario['lp'.$i] = $lp;
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+ $temp_scenario['destination'.$i] = $list_dest;
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+ } else {
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+ $defaults['answer[1]'] = get_lang('DefaultUniqueAnswer1');
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+ $defaults['weighting[1]'] = 10;
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+ $defaults['answer[2]'] = get_lang('DefaultUniqueAnswer2');
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+ $defaults['weighting[2]'] = 0;
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+
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+ $temp_scenario['destination'.$i] = array('0');
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+ $temp_scenario['lp'.$i] = array('0');
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+ }
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+ $defaults['scenario'] = $temp_scenario;
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+
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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 --><br/>{element}</td>',
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+ 'correct'
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+ );
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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+ 'counter['.$i.']'
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+ );
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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+ 'answer['.$i.']'
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+ );
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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+ 'comment['.$i.']'
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+ );
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+ $renderer->setElementTemplate(
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+ '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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+ 'weighting['.$i.']'
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+ );
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+
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+ $answer_number = $form->addElement('text', 'counter['.$i.']', null, ' value = "'.$i.'"');
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+ $answer_number->freeze();
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+
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+ $form->addElement('radio', 'correct', null, null, $i, 'class="checkbox" style="margin-left: 0em;"');
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+ $form->addElement('html_editor', 'answer['.$i.']', null, 'style="vertical-align:middle"', $editor_config);
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+
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+ $form->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');
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+
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+ if ($obj_ex->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_END) {
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+ // feedback
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+ $form->addElement(
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+ 'html_editor',
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+ 'comment['.$i.']',
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+ null,
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+ 'style="vertical-align:middle"',
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+ $editor_config
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+ );
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+ } elseif ($obj_ex->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_DIRECT) {
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+ $form->addElement(
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+ 'html_editor',
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+ 'comment['.$i.']',
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+ null,
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+ 'style="vertical-align:middle"',
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+ $editor_config
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+ );
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+ // Direct feedback
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+
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+ //Adding extra feedback fields
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+ $group = array();
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+ $group['try'.$i] = $form->createElement('checkbox', 'try'.$i, null, get_lang('TryAgain'));
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+ $group['lp'.$i] = $form->createElement(
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+ 'select',
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+ 'lp'.$i,
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+ get_lang('SeeTheory').': ',
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+ $select_lp_id
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+ );
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+ $group['destination'.$i] = $form->createElement(
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+ 'select',
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+ 'destination'.$i,
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+ get_lang('GoToQuestion').': ',
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+ $select_question
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+ );
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+ $group['url'.$i] = $form->createElement(
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+ 'text',
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+ 'url'.$i,
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+ get_lang('Other').': ',
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+ array('class' => 'span2', 'placeholder' => get_lang('Other'))
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+ );
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+ $form->addGroup($group, 'scenario');
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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 --><br/>{element}',
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+ 'scenario'
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+ );
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+
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+ }
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+ $form->addElement('text', 'weighting['.$i.']', null, array('class' => "span1", 'value' => '0'));
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+ $form->addElement('html', '</tr>');
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+ }
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+
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+ $form->addElement('html', '</table>');
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+ $form->addElement('html', '<br />');
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+
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+ $navigator_info = api_get_navigator();
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+
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+ global $text, $class;
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+
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+ //ie6 fix
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+ if ($obj_ex->edit_exercise_in_lp == true) {
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+ if ($navigator_info['name'] == 'Internet Explorer' && $navigator_info['version'] == '6') {
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+ $form->addElement('submit', 'lessAnswers', get_lang('LessAnswer'), 'class="btn minus"');
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+ $form->addElement('submit', 'moreAnswers', get_lang('PlusAnswer'), 'class="btn plus"');
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+ $form->addElement('submit', 'submitQuestion', $text, 'class="'.$class.'"');
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+ } else {
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+ //setting the save button here and not in the question class.php
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+ $form->addElement('style_submit_button', 'lessAnswers', get_lang('LessAnswer'), 'class="btn minus"');
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+ $form->addElement('style_submit_button', 'moreAnswers', get_lang('PlusAnswer'), 'class="btn plus"');
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+ $form->addElement('style_submit_button', 'submitQuestion', $text, 'class="'.$class.'"');
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+ }
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+ }
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+ $renderer->setElementTemplate('{element} ', 'submitQuestion');
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+ $renderer->setElementTemplate('{element} ', 'lessAnswers');
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+ $renderer->setElementTemplate('{element} ', 'moreAnswers');
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+
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+ $form->addElement('html', '</div></div>');
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+
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+ //We check the first radio button to be sure a radio button will be check
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+ if ($correct == 0) {
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+ $correct = 1;
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+ }
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+ $defaults['correct'] = $correct;
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+
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+ if (!empty($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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+ $form->setConstants(array('nb_answers' => $nb_answers));
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+ }
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+
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+
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+ /**
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+ * abstract function which creates the form to create / edit the answers of the question
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+ * @param the formvalidator instance
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+ * @param the answers number to display
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+ */
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+ function processAnswersCreation($form)
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+ {
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+
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+ $questionWeighting = $nbrGoodAnswers = 0;
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+ $correct = $form->getSubmitValue('correct');
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+ $objAnswer = new Answer($this->id);
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+ $nb_answers = $form->getSubmitValue('nb_answers');
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+
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+ for ($i = 1; $i <= $nb_answers; $i++) {
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+ $answer = trim($form->getSubmitValue('answer['.$i.']'));
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+ $comment = trim($form->getSubmitValue('comment['.$i.']'));
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+ $weighting = trim($form->getSubmitValue('weighting['.$i.']'));
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+
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+ $scenario = $form->getSubmitValue('scenario');
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+
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+ //$list_destination = $form -> getSubmitValue('destination'.$i);
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+ //$destination_str = $form -> getSubmitValue('destination'.$i);
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+
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+ $try = $scenario['try'.$i];
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+ $lp = $scenario['lp'.$i];
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+ $destination = $scenario['destination'.$i];
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+ $url = trim($scenario['url'.$i]);
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+
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+
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+
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+ $goodAnswer = ($correct == $i) ? true : false;
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+
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+ if ($goodAnswer) {
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+ $nbrGoodAnswers++;
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+ $weighting = abs($weighting);
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+ if ($weighting > 0) {
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+ $questionWeighting += $weighting;
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+ }
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+ }
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+
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+ if (empty($try)) {
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+ $try = 0;
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+ }
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+
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+ if (empty($lp)) {
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+ $lp = 0;
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+ }
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+
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+ if (empty($destination)) {
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+ $destination = 0;
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+ }
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+
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+ if ($url == '') {
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+ $url = 0;
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+ }
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+
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+ //1@@1;2;@@2;4;4;@@http://www.chamilo.org
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+ $dest = $try.'@@'.$lp.'@@'.$destination.'@@'.$url;
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+ $objAnswer->createAnswer($answer, $goodAnswer, $comment, $weighting, $i, null, null, $dest);
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+ }
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+
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+ // saves the answers into the data base
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+ $objAnswer->save();
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+
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+ // sets the total weighting of the question
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+ $this->updateWeighting($questionWeighting);
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+ $this->save();
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+ }
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+
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+ function return_header($feedback_type = null, $counter = null, $score = null, $show_media = false)
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+ {
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+ return parent::return_header($feedback_type, $counter, $score, $show_media);
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+ }
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+}
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