public function on_generate_feedbacks()
{
parent::on_generate_feedbacks();
// Question combined feedback.
$responsenodes = $this->questions->nodeList('plugin_qtype_shortanswer_question//answer', $this->question_node);
$count = 0;
foreach ($responsenodes as $respnode) {
$content = $this->questions->nodeValue('feedback', $respnode);
if (empty($content)) {
continue;
}
$correct = (int) $this->questions->nodeValue('fraction', $respnode) == 1;
$answerid = (int) $this->questions->nodeValue('@id', $respnode);
$result = cc_helpers::process_linked_files($content, $this->manifest, $this->rootpath, $this->contextid, $this->outdir);
$ident = $correct ? 'correct' : 'incorrect';
$ident .= '_' . $count . '_fb';
cc_assesment_helper::add_feedback($this->qitem, $result[0], cc_qti_values::htmltype, $ident);
pkg_resource_dependencies::instance()->add($result[1]);
if ($correct) {
$this->correct_feedbacks[$answerid] = $ident;
} else {
$this->incorrect_feedbacks[$answerid] = $ident;
}
++$count;
}
}
public function convert($outdir)
{
$rt = new assesment11_resurce_file();
$title = $this->doc->nodeValue('/activity/quiz/name');
$rt->set_title($title);
// Metadata.
$metadata = new cc_assesment_metadata();
$rt->set_metadata($metadata);
$metadata->enable_feedback();
$metadata->enable_hints();
$metadata->enable_solutions();
// Attempts.
$max_attempts = (int) $this->doc->nodeValue('/activity/quiz/attempts_number');
if ($max_attempts > 0) {
// Qti does not support number of specific attempts bigger than 5 (??)
if ($max_attempts > 5) {
$max_attempts = cc_qti_values::unlimited;
}
$metadata->set_maxattempts($max_attempts);
}
// Time limit must be converted into minutes.
$timelimit = (int) floor((int) $this->doc->nodeValue('/activity/quiz/timelimit') / 60);
if ($timelimit > 0) {
$metadata->set_timelimit($timelimit);
$metadata->enable_latesubmissions(false);
}
$contextid = $this->doc->nodeValue('/activity/@contextid');
$result = cc_helpers::process_linked_files($this->doc->nodeValue('/activity/quiz/intro'), $this->manifest, $this->rootpath, $contextid, $outdir);
cc_assesment_helper::add_assesment_description($rt, $result[0], cc_qti_values::htmltype);
// Section.
$section = new cc_assesment_section();
$rt->set_section($section);
// Process the actual questions.
$ndeps = cc_assesment_helper::process_questions($this->doc, $this->manifest, $section, $this->rootpath, $contextid, $outdir);
if ($ndeps === false) {
// No exportable questions in quiz or quiz has no questions
// so just skip it.
return true;
}
// Store any additional dependencies.
$deps = array_merge($result[1], $ndeps);
// Store everything.
$this->store($rt, $outdir, $title, $deps);
return true;
}
public function on_generate_answers()
{
// Add responses holder.
$qresponse_lid = new cc_response_lidtype();
$this->qresponse_lid = $qresponse_lid;
$this->qpresentation->set_response_lid($qresponse_lid);
$qresponse_choice = new cc_assesment_render_choicetype();
$qresponse_lid->set_render_choice($qresponse_choice);
// Mark that question has only one correct answer -
// which applies for multiple choice and yes/no questions.
$qresponse_lid->set_rcardinality(cc_qti_values::Single);
// Are we to shuffle the responses?
$shuffle_answers = (int) $this->quiz->nodeValue('/activity/quiz/shuffleanswers') > 0;
$qresponse_choice->enable_shuffle($shuffle_answers);
$answerlist = array();
$qa_responses = $this->questions->nodeList('plugin_qtype_truefalse_question/answers/answer', $this->question_node);
foreach ($qa_responses as $node) {
$answer_content = $this->questions->nodeValue('answertext', $node);
$id = (int) $this->questions->nodeValue('@id', $node) == $this->correct_answer_node_id;
$qresponse_label = cc_assesment_helper::add_answer($qresponse_choice, $answer_content, cc_qti_values::htmltype);
$answer_ident = strtolower(trim($answer_content));
$qresponse_label->set_ident($answer_ident);
$feedback_ident = $id ? 'correct_fb' : 'incorrect_fb';
if (empty($this->correct_answer_ident) && $id) {
$this->correct_answer_ident = $answer_ident;
}
// Add answer specific feedback if not empty.
$content = $this->questions->nodeValue('feedback', $node);
if (!empty($content)) {
$result = cc_helpers::process_linked_files($content, $this->manifest, $this->rootpath, $this->contextid, $this->outdir);
cc_assesment_helper::add_feedback($this->qitem, $result[0], cc_qti_values::htmltype, $feedback_ident);
pkg_resource_dependencies::instance()->add($result[1]);
$answerlist[$answer_ident] = $feedback_ident;
}
}
$this->answerlist = $answerlist;
}
public function on_generate_response_processing()
{
parent::on_generate_response_processing();
//respconditions
/**
* General unconditional feedback must be added as a first respcondition
* without any condition and just displayfeedback (if exists)
*/
cc_assesment_helper::add_respcondition($this->qresprocessing, 'General feedback', $this->general_feedback, null, true);
//success condition
/**
* For all question types outside of the Essay question, scoring is done in a
* single <respcondition> with a continue flag set to No. The outcome is always
* a variable named SCORE which value must be set to 100 in case of correct answer.
* Partial scores (not 0 or 100) are not supported.
*/
$qrespcondition = new cc_assesment_respconditiontype();
$qrespcondition->set_title('Correct');
$this->qresprocessing->add_respcondition($qrespcondition);
$qrespcondition->enable_continue(false);
$qsetvar = new cc_assignment_setvartype(100);
$qrespcondition->add_setvar($qsetvar);
//define the condition for success
$qconditionvar = new cc_assignment_conditionvar();
$qrespcondition->set_conditionvar($qconditionvar);
//create root and condition
$qandcondition = new cc_assignment_conditionvar_andtype();
$qconditionvar->set_and($qandcondition);
foreach ($this->answerlist as $ident => $refid) {
$qvarequal = new cc_assignment_conditionvar_varequaltype($ident);
$qvarequal->enable_case();
if ($refid[1]) {
$qandcondition->set_varequal($qvarequal);
} else {
$qandcondition->set_not($qvarequal);
}
$qvarequal->set_respident($this->qresponse_lid->get_ident());
}
$qdisplayfeedback = new cc_assignment_displayfeedbacktype();
$qrespcondition->add_displayfeedback($qdisplayfeedback);
$qdisplayfeedback->set_feedbacktype(cc_qti_values::Response);
//TODO: this needs to be fixed
reset($this->correct_feedbacks);
$ident = key($this->correct_feedbacks);
$qdisplayfeedback->set_linkrefid($ident);
//rest of the conditions
foreach ($this->answerlist as $ident => $refid) {
cc_assesment_helper::add_response_condition($this->qresprocessing, 'Incorrect feedback', $refid[0], $this->general_feedback, $this->qresponse_lid->get_ident());
}
//Final element for incorrect feedback
reset($this->incorrect_feedbacks);
$ident = key($this->incorrect_feedbacks);
cc_assesment_helper::add_respcondition($this->qresprocessing, 'Incorrect feedback', $ident, 0);
}
public function on_generate_feedbacks()
{
parent::on_generate_feedbacks();
//Question combined feedbacks
$correct_question_fb = $this->questions->nodeValue('plugin_qtype_multichoice_question/multichoice/correctfeedback', $this->question_node);
$incorrect_question_fb = $this->questions->nodeValue('plugin_qtype_multichoice_question/multichoice/incorrectfeedback', $this->question_node);
$proc = array('correct_fb' => $correct_question_fb, 'general_incorrect_fb' => $incorrect_question_fb);
foreach ($proc as $ident => $content) {
if (empty($content)) {
continue;
}
$result = cc_helpers::process_linked_files($content, $this->manifest, $this->rootpath, $this->contextid, $this->outdir);
cc_assesment_helper::add_feedback($this->qitem, $result[0], cc_qti_values::htmltype, $ident);
pkg_resource_dependencies::instance()->add($result[1]);
if ($ident == 'correct_fb') {
$this->correct_feedbacks[] = $ident;
} else {
$this->incorrect_feedbacks[] = $ident;
}
}
}
