function boolean_field_schema in Boolean Field 7
Implements hook_field_schema().
File
- ./boolean.install, line 12 
- Install, update and uninstall functions for the boolean module.
Code
function boolean_field_schema($field) {
  switch ($field['type']) {
    case 'number_boolean':
      $columns = array(
        'value' => array(
          'type' => 'int',
          'not null' => TRUE,
          'default' => -1,
        ),
      );
      break;
  }
  return array(
    'columns' => $columns,
  );
}