quiz_views_handler_filter_user_nullable.inc in Quiz 7.4

File

includes/views/handlers/quiz_views_handler_filter_user_nullable.inc

<?php

/*
 * @file
 * Handles filter nullable user.
 */
class quiz_views_handler_filter_user_nullable extends views_handler_filter {
  function option_definition() {
    $options = parent::option_definition();
    $options['allow_null'] = array(
      'default' => FALSE,
    );
    $options['use_current'] = array(
      'default' => FALSE,
    );
    return $options;
  }
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    $form['use_current'] = array(
      '#type' => 'checkbox',
      '#title' => t('Use Current User'),
      '#description' => t('Filter using the current user; only quiz results owned by the current user will be shown.'),
      '#default_value' => $this->options['use_current'],
    );
    $form['allow_null'] = array(
      '#type' => 'checkbox',
      '#title' => t('Used for Quiz Status'),
      '#description' => t('If you are using the Quiz Status, this box must be checked; otherwise, the field will not work properly.'),
      '#default_value' => $this->options['allow_null'],
    );
  }
  function admin_summary() {
    return !empty($this->options['use_current']) ? t('Current User') : t('NOT Current User');
  }
  function query() {
    $group = $this->query
      ->set_where_group('AND', 'qnr_user');
    $this
      ->ensure_my_table();
    $operator = empty($this->options['use_current']) ? '!=' : '=';

    // By adding the isNull, joins can properly inform us about quiz state
    $this->query
      ->add_where($group, db_or()
      ->condition("{$this->table_alias}.{$this->real_field}", "***CURRENT_USER***", $operator)
      ->isNull("{$this->table_alias}.{$this->real_field}"));
  }

}

Classes

Name	Description
quiz_views_handler_filter_user_nullable