require_once($CFG->libdir . '/questionlib.php');
require_once(dirname(__FILE__) . '/previewlib.php');
// Get and validate question id.
$id = required_param('id', PARAM_INT);
$question = question_bank::load_question($id);
require_login();
$category = $DB->get_record('question_categories',
array('id' => $question->category), '*', MUST_EXIST);
question_require_capability_on($question, 'use');
$PAGE->set_pagelayout('popup');
$PAGE->set_context(get_context_instance_by_id($category->contextid));
// Get and validate display options.
$maxvariant = $question->get_num_variants();
$options = new question_preview_options($question);
$options->load_user_defaults();
$options->set_from_request();
$PAGE->set_url(question_preview_url($id, $options->behaviour, $options->maxmark, $options));
// Get and validate exitsing preview, or start a new one.
$previewid = optional_param('previewid', 0, PARAM_INT);
if ($previewid) {
if (!isset($SESSION->question_previews[$previewid])) {
print_error('notyourpreview', 'question');
}
try {
$quba = question_engine::load_questions_usage_by_activity($previewid);
} catch (Exception $e) {
print_error('submissionoutofsequencefriendlymessage', 'question',
/**
* The the URL to use for actions relating to this preview.
* @param int $questionid the question being previewed.
* @param int $qubaid the id of the question usage for this preview.
* @param question_preview_options $options the options in use.
*/
function question_preview_action_url($questionid, $qubaid, question_preview_options $options, $context)
{
$params = array('id' => $questionid, 'previewid' => $qubaid);
if ($context->contextlevel == CONTEXT_MODULE) {
$params['cmid'] = $context->instanceid;
} else {
if ($context->contextlevel == CONTEXT_COURSE) {
$params['courseid'] = $context->instanceid;
}
}
$params = array_merge($params, $options->get_url_params());
return new moodle_url('/question/preview.php', $params);
}
/**
* The the URL to use for actions relating to this preview.
* @param int $questionid the question being previewed.
* @param int $qubaid the id of the question usage for this preview.
* @param question_preview_options $options the options in use.
*/
function question_preview_action_url($questionid, $qubaid,
question_preview_options $options) {
$params = array(
'id' => $questionid,
'previewid' => $qubaid,
);
$params = array_merge($params, $options->get_url_params());
return new moodle_url('/question/preview.php', $params);
}
