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Add workarounds for serializer __repr__ ordering

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This commit is contained in:
Carlton Gibson 2017-11-15 12:26:04 +01:00
parent 682c98958a
commit 826fd76825
2 changed files with 15 additions and 10 deletions
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22
rest_framework/utils/field_mapping.py
View File

@ -3,6 +3,7 @@ Helper functions for mapping model fields to a dictionary of default
keyword arguments that should be used for their equivalent serializer fields.
"""
import inspect
from collections import OrderedDict
from django.core import validators
from django.db import models
@ -130,10 +131,11 @@ def get_field_kwargs(field_name, model_field):
max_value, message = next((
(validator.limit_value, validator.message) for validator in validator_kwarg
if isinstance(validator, validators.MaxValueValidator)
), (None, None))
), (None, ''))
if max_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['max_value'] = max_value
kwargs['error_messages'] = {'max_value': message}
if message != '':
kwargs.setdefault('error_messages', OrderedDict()).update(max_value=message)
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MaxValueValidator)
@ -144,10 +146,11 @@ def get_field_kwargs(field_name, model_field):
min_value, message = next((
(validator.limit_value, validator.message) for validator in validator_kwarg
if isinstance(validator, validators.MinValueValidator)
), (None, None))
), (None, ''))
if min_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['min_value'] = min_value
kwargs.setdefault('error_messages', {}).update(min_value=message)
if message != '':
kwargs.setdefault('error_messages', OrderedDict()).update(min_value=message)
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MinValueValidator)
@ -202,9 +205,9 @@ def get_field_kwargs(field_name, model_field):
isinstance(model_field, models.TextField) or
isinstance(model_field, models.FileField)):
kwargs['max_length'] = max_length
custom_message = model_field.error_messages.get("max_length", None)
if custom_message is not None:
kwargs.setdefault('error_messages', {}).update(max_length=custom_message)
custom_message = model_field.error_messages.get("max_length", '')
if custom_message != '':
kwargs.setdefault('error_messages', OrderedDict()).update(max_length=custom_message)
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MaxLengthValidator)
@ -215,10 +218,11 @@ def get_field_kwargs(field_name, model_field):
min_length, message = next((
(validator.limit_value, validator.message) for validator in validator_kwarg
if isinstance(validator, validators.MinLengthValidator)
), (None, None))
), (None, ''))
if min_length is not None and isinstance(model_field, models.CharField):
kwargs['min_length'] = min_length
kwargs.setdefault('error_messages', {}).update(min_length=message)
if message != '':
kwargs.setdefault('error_messages', OrderedDict()).update(min_length=message)
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MinLengthValidator)

3
tests/test_model_serializer.py
View File

@ -200,7 +200,7 @@ class TestRegularFieldMappings(TestCase):
expected = dedent("""
TestSerializer():
id = IntegerField(label='ID', read_only=True)
value_limit_field = IntegerField(error_messages={'max_value': 'Ensure this value is less than or equal to %(limit_value)s.', 'min_value': 'Ensure this value is greater than or equal to %(limit_value)s.'}, max_value=10, min_value=1)
value_limit_field = IntegerField(error_messages=OrderedDict([('max_value', 'Ensure this value is less than or equal to %(limit_value)s.'), ('min_value', 'Ensure this value is greater than or equal to %(limit_value)s.')]), max_value=10, min_value=1)
length_limit_field = CharField(max_length=12, min_length=3)
blank_field = CharField(allow_blank=True, max_length=10, required=False)
null_field = IntegerField(allow_null=True, required=False)
@ -218,6 +218,7 @@ class TestRegularFieldMappings(TestCase):
"{'max_value': 'Ensure this value is less than or equal to %(limit_value)s.', 'min_value': 'Ensure this value is greater than or equal to %(limit_value)s.'}",
"{'max_value': u'Ensure this value is less than or equal to %(limit_value)s.', 'min_value': u'Ensure this value is greater than or equal to %(limit_value)s.'}"
)
self.maxDiff = None
self.assertEqual(unicode_repr(TestSerializer()), expected)
def test_method_field(self):