function isbn_field_schema in ISBN Field 7

Implements hook_field_schema().

File

./isbn.install, line 11

Defines schema for ISBN fields

Code

function isbn_field_schema($field) {
  return array(
    'columns' => array(
      'isbn' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => FALSE,
      ),
    ),
  );
}