fix search of username in admin section

[fermayo]

No description provided.

[coveralls]

Coverage remained the same when pulling 6f7cb2f on fermayo:fix-admin into 105ec5c on Bouke:master.

[Bouke]

Could you also provide a unit test for your fix? There are already some admin tests in the aptly named AdminTests.

[Gwildor]

Do note that because of custom user models, there might be user models without an username field. I'm not sure what the proper solution for that is. Perhaps search by first_name and last_name. Starting from Django 1.5 you can use the User.USERNAME_FIELD attribute, but that one is not present in Django 1.4.

[Bouke]

I've pushed a commit that should fix this issue, could you have a look? I can make an official bug fix release after I get your confirmations.

[Gwildor]

Can't check this now; I will have a look at this on Thursday.

[Gwildor]

I can confirm that this issue has been fixed. Nice solution, by the way.

[Bouke]

Thanks :). I've also pushed a new version (1.1.0) containing this fix.