require_once $CFG->dirroot . '/mod/offlinequiz/locallib.php';
require_once $CFG->dirroot . '/question/editlib.php';
list($thispageurl, $contexts, $cmid, $cm, $offlinequiz, $pagevars) = question_edit_setup('editq', '/mod/offlinequiz/edit.php', true);
// Get the course object and related bits.
$course = $DB->get_record('course', array('id' => $offlinequiz->course), '*', MUST_EXIST);
require_capability('mod/offlinequiz:manage', $contexts->lowest());
// Determine groupid.
$groupnumber = optional_param('groupnumber', 1, PARAM_INT);
if ($groupnumber === -1 and !empty($SESSION->question_pagevars['groupnumber'])) {
$groupnumber = $SESSION->question_pagevars['groupnumber'];
}
if ($groupnumber === -1) {
$groupnumber = 1;
}
$offlinequiz->groupnumber = $groupnumber;
$thispageurl->param('groupnumber', $offlinequiz->groupnumber);
// Load the offlinequiz group and set the groupid in the offlinequiz object.
if ($offlinequizgroup = offlinequiz_get_group($offlinequiz, $groupnumber)) {
$offlinequiz->groupid = $offlinequizgroup->id;
$groupquestions = offlinequiz_get_group_question_ids($offlinequiz);
$offlinequiz->questions = $groupquestions;
} else {
print_error('invalidgroupnumber', 'offlinequiz');
}
// Create offlinequiz question bank view.
$questionbank = new mod_offlinequiz\question\bank\custom_view($contexts, $thispageurl, $course, $cm, $offlinequiz);
$questionbank->set_offlinequiz_has_scanned_pages(offlinequiz_has_scanned_pages($offlinequiz->id));
// Output.
$output = $PAGE->get_renderer('mod_offlinequiz', 'edit');
$contents = $output->question_bank_contents($questionbank, $pagevars);
echo json_encode(array('status' => 'OK', 'contents' => $contents));
/**
* Retrieves a template question usage for an offline group. Creates a new template if there is none.
* While creating question usage it shuffles the group questions if shuffleanswers is created.
*
* @param object $offlinequiz
* @param object $group
* @param object $context
* @return question_usage_by_activity
*/
function offlinequiz_get_group_template_usage($offlinequiz, $group, $context)
{
global $CFG, $DB;
if (!empty($group->templateusageid) && $group->templateusageid > 0) {
$templateusage = question_engine::load_questions_usage_by_activity($group->templateusageid);
} else {
$questionids = offlinequiz_get_group_question_ids($offlinequiz, $group->id);
if ($offlinequiz->shufflequestions) {
$offlinequiz->groupid = $group->id;
$questionids = offlinequiz_shuffle_questions($questionids);
}
// We have to use our own class s.t. we can use the clone function to create results.
$templateusage = offlinequiz_make_questions_usage_by_activity('mod_offlinequiz', $context);
$templateusage->set_preferred_behaviour('immediatefeedback');
if (!$questionids) {
print_error(get_string('noquestionsfound', 'offlinequiz'), 'view.php?q=' . $offlinequiz->id);
}
// Gets database raw data for the questions.
$questiondata = question_load_questions($questionids);
// Get the question instances for initial markmarks.
$sql = "SELECT questionid, maxmark\n FROM {offlinequiz_group_questions}\n WHERE offlinequizid = :offlinequizid\n AND offlinegroupid = :offlinegroupid ";
$groupquestions = $DB->get_records_sql($sql, array('offlinequizid' => $offlinequiz->id, 'offlinegroupid' => $group->id));
foreach ($questionids as $questionid) {
if ($questionid) {
// Convert the raw data of multichoice questions to a real question definition object.
if (!$offlinequiz->shuffleanswers) {
$questiondata[$questionid]->options->shuffleanswers = false;
}
$question = question_bank::make_question($questiondata[$questionid]);
// We only add multichoice questions which are needed for grading.
if ($question->get_type_name() == 'multichoice' || $question->get_type_name() == 'multichoiceset') {
$templateusage->add_question($question, $groupquestions[$question->id]->maxmark);
}
}
}
// Create attempts for all questions (fixes order of the answers if shuffleanswers is active).
$templateusage->start_all_questions();
// Save the template question usage to the DB.
question_engine::save_questions_usage_by_activity($templateusage);
// Save the templateusage-ID in the offlinequiz_groups table.
$group->templateusageid = $templateusage->get_id();
$DB->set_field('offlinequiz_groups', 'templateusageid', $group->templateusageid, array('id' => $group->id));
}
// End else.
return $templateusage;
}
foreach ($choices as $choice) {
if (!isset($choicesdata[$choice->slotnumber]) || !is_array($choicesdata[$choice->slotnumber])) {
$choicesdata[$choice->slotnumber] = array();
}
$choicesdata[$choice->slotnumber][$choice->choicenumber] = $choice;
}
}
if ($sheetloaded) {
// Print image of the form sheet.
$fs = get_file_storage();
$imagefile = $fs->get_file($context->id, 'mod_offlinequiz', 'imagefiles', 0, '/', $scannedpage->filename);
// E.g. http://131.130.103.117/mod_offlinequiz/pluginfile.php/65/mod_offlinequiz/imagefiles/0/zimmer.png_1.
echo '<img name="formimage" src="' . $CFG->wwwroot . "/pluginfile.php/{$context->id}/mod_offlinequiz/imagefiles/0/" . $imagefile->get_filename() . '" border="1" width="' . OQ_IMAGE_WIDTH . '" style="position:absolute; top:0px; left:0px; display: block;">';
$answerspots = $scanner->export_hotspots_answer(OQ_IMAGE_WIDTH);
if ($options->gradedsheetfeedback) {
$questionids = offlinequiz_get_group_question_ids($offlinequiz, $group->id);
list($qsql, $params) = $DB->get_in_or_equal($questionids, SQL_PARAMS_NAMED, 'qid');
$params['offlinequizid'] = $offlinequiz->id;
$params['offlinegroupid'] = $group->id;
$sql = "SELECT q.*, ogq.maxmark\n FROM {question} q,\n {offlinequiz_group_questions} ogq\n WHERE ogq.offlinequizid = :offlinequizid\n AND ogq.offlinegroupid = :offlinegroupid\n AND q.id = ogq.questionid\n AND q.id {$qsql}";
// Load the questions.
if (!($questions = $DB->get_records_sql($sql, $params))) {
$viewurl = new moodle_url($CFG->wwwroot . '/mod/offlinequiz/view.php', array('q' => $offlinequiz->id));
print_error('noquestionsfound', 'offlinequiz', $viewurl);
}
// Load the question type specific information.
if (!get_question_options($questions)) {
print_error('Could not load question options');
}
$questioncounter = 0;
for ($slotindex = $startindex; $slotindex < $endindex; $slotindex++) {
/**
* Checks whether the different offlinequiz groups have different sets of questions (order is irrelevant).
*
* @param unknown_type $offlinequiz
* @param unknown_type $groups
* @return boolean
*/
private function groups_have_different_questions($offlinequiz, $groups)
{
$agroup = array_pop($groups);
$aquestions = offlinequiz_get_group_question_ids($offlinequiz, $agroup->id);
// Compare all other groups to the first one.
foreach ($groups as $bgroup) {
$bquestions = offlinequiz_get_group_question_ids($offlinequiz, $bgroup->id);
// Check which questions are in group A but not in group B.
$diff1 = array_diff($aquestions, $bquestions);
// Check which questions are in group B but not in group A.
$diff2 = array_diff($bquestions, $aquestions);
// Return true if there are any differences.
if (!empty($diff1) || !empty($diff2)) {
return true;
}
}
return false;
}
