public function validation($data, $files)
{
global $COURSE, $CFG, $DB;
$errors = parent::validation($data, $files);
if (isset($data['limitgroup']['maxpostsblock']) && !preg_match('/^[0-9]{1,9}$/', $data['limitgroup']['maxpostsblock'])) {
$errors['limitgroup'] = get_string('err_numeric', 'form');
}
if (!empty($data['reportingemail']) && !$this->validate_emails($data['reportingemail'])) {
$errors['reportingemail'] = get_string('invalidemail', 'forumng');
}
// If old discussions are set to be moved to another forum...
$targetforumngid = isset($data['removeto']) ? $data['removeto'] : 0;
$removeafter = isset($data['removeafter']) ? $data['removeafter'] : 0;
if ($removeafter && $targetforumngid > 0) {
$modinfo = get_fast_modinfo($COURSE);
// Look for target forum
if (!array_key_exists($targetforumngid, $modinfo->instances['forumng'])) {
$errors['removeto'] = get_string('errorinvalidforum', 'forumng');
}
}
// If sharing is turned on, check requirements
if (!empty($data['shared'])) {
if (!empty($data['groupmode'])) {
$errors['groupmode'] = get_string('error_notwhensharing', 'forumng');
}
if (!empty($data['grading'])) {
$errors['grading'] = get_string('error_notwhensharing', 'forumng');
}
if (empty($data['cmidnumber'])) {
$errors['cmidnumber'] = get_string('error_sharingrequiresidnumber', 'forumng');
} else {
// Check it's unique
$cmid = isset($data['coursemodule']) ? (int) $data['coursemodule'] : 0;
if ($DB->count_records_select('course_modules', "idnumber = ? AND id <> ?", array($data['cmidnumber'], $cmid))) {
$errors['cmidnumber'] = get_string('error_sharingrequiresidnumber', 'forumng');
}
}
} else {
if (isset($data['shared'])) {
// They are trying to turn sharing off. You aren't allowed to do
// this if there are existing references.
$cmid = isset($data['coursemodule']) ? (int) $data['coursemodule'] : -1;
if ($DB->count_records('forumng', array('originalcmid' => $cmid))) {
$errors['shared'] = get_string('error_sharinginuse', 'forumng');
}
}
}
if (!empty($data['usesharedgroup']['useshared'])) {
if (empty($data['usesharedgroup']['originalcmidnumber'])) {
$errors['usesharedgroup'] = get_string('error_sharingidnumbernotfound', 'forumng');
} else {
// Check we can find it
if (!mod_forumng::get_shared_cm_from_idnumber($data['usesharedgroup']['originalcmidnumber'])) {
$errors['usesharedgroup'] = get_string('error_sharingidnumbernotfound', 'forumng');
}
}
}
// If grading is set to ratings and ratings not enabled.
if (!empty($data['grading'])) {
if ($data['grading'] > 0 && $data['grading'] < 6 && empty($data['enableratings'])) {
// If grading between 1 and 5 (not = 6 and not = 0) and enableratings is empty (not checked).
$errors['enableratings'] = get_string('error_ratingrequired', 'forumng');
}
}
return $errors;
}
