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Merged
merged 2 commits into from
Nov 1, 2016
Merged

Make serializer fields import explicit #4628

merged 2 commits into from
Nov 1, 2016

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rpkilby
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@rpkilby rpkilby commented Oct 26, 2016

This is a better approach to fixing the from fields import * in serializers (see #4626/#4613).

  • Field class imports are separated from utility imports (SkipField, empty, etc...)
  • The test ensures all fields & related fields are imported into the serializers module. New field classes won't accidentally be skipped.

@tomchristie tomchristie added this to the 3.5.2 Release milestone Oct 26, 2016
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Seems reasonable, yup.

@adamn adamn mentioned this pull request Oct 26, 2016
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Looking good - linter failed on isort, otherwise happy with it.
Any thoughts on if there's likely gotchas with users importing private functions in fields, using the serializers.* notation that we wouldn't now support? What isn't in the import anymore that used to be, that some users might be working with?

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rpkilby commented Oct 26, 2016

from foo import * ignores objects where the name has a leading _.

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rpkilby commented Oct 26, 2016 •
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See the latest commit - added a section for non-field imports that are still public API.

All of the non-field definitions:

# fields.py
empty
is_simple_callable
get_attribute
set_value
to_choices_dict
flatten_choices_dict
iter_options
get_error_detail
CreateOnlyDefault
CurrentUserDefault
SkipField
REGEX_TYPE
NOT_READ_ONLY_WRITE_ONLY
NOT_READ_ONLY_REQUIRED
NOT_REQUIRED_DEFAULT
USE_READONLYFIELD
MISSING_ERROR_MESSAGE

# relations.py
method_overridden
Hyperlink
PKOnlyObject
MANY_RELATION_KWARGS

From the above, serializers currently imports:

# fields.py
empty
get_error_detail
set_value
CreateOnlyDefault
SkipField

# relations.py
Hyperlink
PKOnlyObject

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Great. Anyone else got thoughts/review on this?

tomchristie
tomchristie approved these changes Nov 1, 2016
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tests/test_serializer.py
)

def test_fields(self):
msg = "Expected `fields.%s` to be imported in `serializers`"
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These are great!

@tomchristie tomchristie merged commit d92b24a into encode:master Nov 1, 2016
@rpkilby rpkilby deleted the fix-fields-import branch September 25, 2017 18:47
dodobas added a commit to nyaruka/rapidpro that referenced this pull request Mar 5, 2018
@dodobas
Fix wrong import of DRF constant
9d3e288 
We are stuck on DRF 3.5.1 because on 3.5.2 this PR got merged
encode/django-rest-framework#4628
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