User data wrapper

This is a module that allows you to use the $account->data in a structured way. The use case for this module would be if you need to store small amounts of data against a user that needs no UI, then this would be a good fit. Do not user $account->data as a replacement for fields.

You can then use entity meta wrappers to get or set your defined data as properties.

You define properties using a user_data_info hook:

function hook_user_data_info() {
  return array(
    'property_key' => array(
      'label' => t('Property label'),
      'type' => 'text',
    ),
  );
}

Note: the type expects the values defined in entity_property_info definition, see http://www.drupalcontrib.org/api/drupal/contributions!entity!entity.api....

and then you can use your data like this:

$wrapper = entity_metadata_wrapper('user', $user);
$wrapper->property_key->set('text string');
or
$wrapper->property_key->value();