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I have this little problem with a custom field that is bundled with user. In its validation function I need to have access to the user id of the user whose field is being edited.

What that means is, when I edit a user, I need to get his uid in the validation function.

The problem is that hook_field_validate provides just $entity variable that doesn't include uid.

I know I could load the user object using his email / name (and then retrieve the uid from it) but it wouldn't properly work when email/name was being changed (I could get only the changed values from $entity and therefore wouldn't be able to load the object properly).

Any ideas?

  • So the field is on a the user entity type (in hook_field_validate $entity_type == 'user'), but $entity->uid is empty for edits to existing users? – mpdonadio Apr 5 '14 at 19:03
  • Yep, it's exactly as you say. – Petrroll Apr 5 '14 at 19:07
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You can always get this information from the path, eg:

// you are sitting on user/#/edit

$uid=arg(1);                      // quick, or...
$account=menu_get_object('user'); // the full user object, eg the uid is in $account->uid

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