diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py index 9cfeed378..229b2cdeb 100644 --- a/rest_framework/serializers.py +++ b/rest_framework/serializers.py @@ -727,6 +727,22 @@ class ModelSerializer(Serializer): kwargs['choices'] = model_field.flatchoices return ChoiceField(**kwargs) + attribute_dict = { + models.CharField: ['max_length'], + models.CommaSeparatedIntegerField: ['max_length'], + models.DecimalField: ['max_digits', 'decimal_places'], + models.EmailField: ['max_length'], + models.FileField: ['max_length'], + models.ImageField: ['max_length'], + models.SlugField: ['max_length'], + models.URLField: ['max_length'], + } + + if model_field.__class__ in attribute_dict: + attributes = attribute_dict[model_field.__class__] + for attribute in attributes: + kwargs.update({attribute: getattr(model_field, attribute)}) + try: return self.field_mapping[model_field.__class__](**kwargs) except KeyError: diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/serializer.py index 96f184516..4f188c3e4 100644 --- a/rest_framework/tests/serializer.py +++ b/rest_framework/tests/serializer.py @@ -6,7 +6,7 @@ from django.test import TestCase from rest_framework import serializers from rest_framework.tests.models import (HasPositiveIntegerAsChoice, Album, ActionItem, Anchor, BasicModel, BlankFieldModel, BlogPost, BlogPostComment, Book, CallableDefaultValueModel, DefaultValueModel, - ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo) + ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo, RESTFrameworkModel) import datetime import pickle @@ -1321,3 +1321,84 @@ class DeserializeListTestCase(TestCase): self.assertFalse(serializer.is_valid()) expected = [{}, {'email': ['This field is required.']}, {}] self.assertEqual(serializer.errors, expected) + + +class AttributeMappingOnAutogeneratedFieldsTests(TestCase): + + def setUp(self): + class AMOAFModel(RESTFrameworkModel): + char_field = models.CharField(max_length=1024, blank=True) + comma_separated_integer_field = models.CommaSeparatedIntegerField(max_length=1024, blank=True) + decimal_field = models.DecimalField(max_digits=64, decimal_places=32, blank=True) + email_field = models.EmailField(max_length=1024, blank=True) + file_field = models.FileField(max_length=1024, blank=True) + image_field = models.ImageField(max_length=1024, blank=True) + slug_field = models.SlugField(max_length=1024, blank=True) + url_field = models.URLField(max_length=1024, blank=True) + + class AMOAFSerializer(serializers.ModelSerializer): + class Meta: + model = AMOAFModel + + self.serializer_class = AMOAFSerializer + self.fields_attributes = { + 'char_field': [ + ('max_length', 1024), + ], + 'comma_separated_integer_field': [ + ('max_length', 1024), + ], + 'decimal_field': [ + ('max_digits', 64), + ('decimal_places', 32), + ], + 'email_field': [ + ('max_length', 1024), + ], + 'file_field': [ + ('max_length', 1024), + ], + 'image_field': [ + ('max_length', 1024), + ], + 'slug_field': [ + ('max_length', 1024), + ], + 'url_field': [ + ('max_length', 1024), + ], + } + + def field_test(self, field): + serializer = self.serializer_class(data={}) + self.assertEqual(serializer.is_valid(), True) + + for attribute in self.fields_attributes[field]: + self.assertEqual( + getattr(serializer.fields[field], attribute[0]), + attribute[1] + ) + + def test_char_field(self): + self.field_test('char_field') + + def test_comma_separated_integer_field(self): + self.field_test('comma_separated_integer_field') + + def test_decimal_field(self): + self.field_test('decimal_field') + + def test_email_field(self): + self.field_test('email_field') + + def test_file_field(self): + self.field_test('file_field') + + def test_image_field(self): + self.field_test('image_field') + + def test_slug_field(self): + self.field_test('slug_field') + + def test_url_field(self): + self.field_test('url_field')