/**
* Process config change of survey
*
* @return array errors
*/
protected function process_config_change()
{
if (!check_form_key($this->form_key_name)) {
return array($this->user->lang('FORM_INVALID'));
}
$new_settings = array('caption' => '', 'show_order' => 0, 'reverse_order' => 0, 'allow_change_answer' => 0, 'allow_multiple_answer' => 0, 'visibility' => 0, 'stop_time' => '', 'default_hide' => 0);
if ($this->survey->is_moderator()) {
$new_settings['topic_poster_right'] = 0;
}
foreach ($new_settings as $setting => $default) {
$new_settings[$setting] = $this->request->variable('survey_setting_' . $setting, $default, true);
}
if ($new_settings['caption'] == '') {
return array($this->user->lang('SURVEY_INVALID_CAPTION'));
}
if (!in_array($new_settings['show_order'], survey::$SHOW_ORDER_TYPES)) {
return array($this->user->lang('SURVEY_INVALID_SHOW_ORDER_TYPE'));
}
$new_settings['reverse_order'] = $new_settings['reverse_order'] ? 1 : 0;
$new_settings['allow_change_answer'] = $new_settings['allow_change_answer'] ? 1 : 0;
$new_settings['allow_multiple_answer'] = $new_settings['allow_multiple_answer'] ? 1 : 0;
$new_settings['default_hide'] = $new_settings['default_hide'] ? 1 : 0;
if (!in_array($new_settings['visibility'], survey::$VISIBILITY_TYPES)) {
return array($this->user->lang('SURVEY_INVALID_VISIBILITY_TYPE'));
}
if ($new_settings['stop_time'] != '') {
$orig_input = $new_settings['stop_time'];
$new_settings['stop_time'] = $this->user->get_timestamp_from_format('Y-m-d H:i', $new_settings['stop_time']);
if ($new_settings['stop_time'] === false || $new_settings['stop_time'] + 60 < $this->survey->fixed_time() && $new_settings['stop_time'] != $this->survey->settings['stop_time']) {
return array($this->user->lang('SURVEY_INVALID_STOPDATE', $orig_input));
}
} else {
$new_settings['stop_time'] = null;
}
if ($this->survey->is_moderator()) {
if (!in_array($new_settings['topic_poster_right'], survey::$TOPIC_POSTER_RIGHT_TYPES)) {
return array($this->user->lang('SURVEY_INVALID_TOPIC_POSTER_RIGHT_TYPE'));
}
}
$this->survey->change_config($new_settings);
return array();
}