Okay, I found the solution, there is a way to have fields associated to entities without bundles. You use the same name for bundle as entity. Fortunately, I was also able to use entity reference field. Sharing my experience with everyone -- http://www.innoraft.com/blog/use-entity-reference-your-custom-entities-witho... On Wed, Dec 7, 2011 at 6:56 PM, Mukesh Agarwal <mukesh.agarwal17@gmail.com>wrote:

Hi Guys,

Entities seem to be the biggest problem of my life for the past few weeks :-)

Ok, so I have an entity without any bundles. I read this in hook_entity_info<http://api.drupal.org/api/drupal/modules--system--system.api.php/function/hook_entity_info/7>that bundles are not necessary.

This entry can be omitted if this entity type exposes a single bundle (all

...

entities have the same collection of fields). The name of this single bundle will be the same as the entity type.

Now, I need to attach fields to my entity. I use field_create_field<http://api.drupal.org/api/drupal/modules--field--field.crud.inc/function/field_create_field/7>for my entity reference field which seems to work fine. When I attach this field to my instance using field_create_instance<http://api.drupal.org/api/drupal/modules--field--field.crud.inc/function/field_create_instance/7>, I see an error saying:

drupal FieldException: Attempt to create an instance of field without a

...

bundle

Does this mean I cannot attach fields to entities which do not have bundles?

-- Cheers, Mukesh Agarwal ________________________________ Innoraft Solutions <http://www.innoraft.com> || +91 8017220799

-- Cheers, Mukesh Agarwal ________________________________ Innoraft Solutions <http://www.innoraft.com> || +91 8017220799