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Is there a property that is set by the field API once fields have been attached to an entity?

For example

$entity->fields_attached = TRUE

I have been unable to find any information on this, I am looking for a quick and easy way to know if fields have been attached to my own custom entities. If field API does not do something like I have suggested in the question I will handle it myself but I wanted to double check with you fine folks...

If not, I will make a suggestion for this for the Entity API in contrib whenever it attaches fields.

Many thanks in advance :)

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  • Can't see anything like that going on. You could test a known field, if this is a specific question and you know to expect certain field, but obv. this no help if your question is more about the general case. – artfulrobot Apr 15 '12 at 19:45
  • Cheers for the answer :) You're right, I could certainly test for a specific field but I'm not sure I want to have to. I think a more generic solution would be easier. Am I suggesting something particularly crazy here? – user6803 Apr 16 '12 at 18:45
  • no, sounds sensible to me (have the issue all the time with $user which is field-less, where as $account = user_load($user->uid) is not) – artfulrobot Apr 17 '12 at 16:54
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No, there is no property on the entity, but you can use field_info_instances() to check on which bundles the field is in use.

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