upgrades to admin: search_fields, list_filters and raw_id_field

[PetrDlouhy]

Fixes:

• long loading times of admin edit pages when many User/Token models

Description of the Change

I defined search_fields, list_filters and raw_id_fields for easier management of the tokens in admin.

Not sure what to test in this.
Also I think, this doesn't need any documentation, it is pretty self-explanatory to users.

Checklist

• PR only contains one change (considered splitting up PR)
• unit-test added
• documentation updated
• CHANGELOG.md updated (only for user relevant changes)
• author name in AUTHORS

[PetrDlouhy]

This is my second take on this, I fixed the User without e-mail problem, that was in #723

[codecov]

Codecov Report

Merging #1041 (ddeb758) into master (78feec8) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1041      +/-   ##
==========================================
+ Coverage   96.62%   96.64%   +0.01%     
==========================================
  Files          31       31              
  Lines        1748     1756       +8     
==========================================
+ Hits         1689     1697       +8     
  Misses         59       59              

Impacted Files	Coverage Δ
oauth2_provider/admin.py	100.00% <100.00%> (ø)

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[auvipy]

thank you

[n2ygk]

In hindsight, it would probably be a good thing for the Admin UI to be documented somewhere....

[PetrDlouhy]

@n2ygk Which part of the Admin UI do you think should be documented. Do you mean the UI as general? Or just the search by e-mail functionality (which don't work if there is no e-mail)?

[n2ygk]

@PetrDlouhy not here, but as an update to the Tutorial it would probably be helpful to show users around the admin UI. I'll make an issue.

[danlamanna]

Is this valid? Searching from the admin now gives me django.core.exceptions.FieldError: Cannot resolve keyword 'token' into field. Choices are: access_token, application, application_id, created, expires, id, jti, scope, updated, user, user_id

[PetrDlouhy]

@danlamanna You are right. Fixed in PR #1085

[charettes]

FWIW it might have been better to search by USERNAME_FIELD of the user model instead as nothing guarantees that the email field will be indexed while USERNAME_FIELD must be to support the unique constraint defined on it.

[n2ygk]

FWIW it might have been better to search by USERNAME_FIELD of the user model instead as nothing guarantees that the email field will be indexed while USERNAME_FIELD must be to support the unique constraint defined on it.

Yes, that makes sense @charettes. A PR to change this would be appreciated.

[charettes]

@n2ygk done in #1428.