mirror of
https://github.com/encode/django-rest-framework.git
synced 2024-11-30 13:34:00 +03:00
121 lines
4.2 KiB
Python
121 lines
4.2 KiB
Python
"""
|
|
General tests for relational fields.
|
|
"""
|
|
from __future__ import unicode_literals
|
|
from django.db import models
|
|
from django.test import TestCase
|
|
from rest_framework import serializers
|
|
from rest_framework.tests.models import BlogPost
|
|
|
|
|
|
class NullModel(models.Model):
|
|
pass
|
|
|
|
|
|
class FieldTests(TestCase):
|
|
def test_pk_related_field_with_empty_string(self):
|
|
"""
|
|
Regression test for #446
|
|
|
|
https://github.com/tomchristie/django-rest-framework/issues/446
|
|
"""
|
|
field = serializers.PrimaryKeyRelatedField(queryset=NullModel.objects.all())
|
|
self.assertRaises(serializers.ValidationError, field.from_native, '')
|
|
self.assertRaises(serializers.ValidationError, field.from_native, [])
|
|
|
|
def test_hyperlinked_related_field_with_empty_string(self):
|
|
field = serializers.HyperlinkedRelatedField(queryset=NullModel.objects.all(), view_name='')
|
|
self.assertRaises(serializers.ValidationError, field.from_native, '')
|
|
self.assertRaises(serializers.ValidationError, field.from_native, [])
|
|
|
|
def test_slug_related_field_with_empty_string(self):
|
|
field = serializers.SlugRelatedField(queryset=NullModel.objects.all(), slug_field='pk')
|
|
self.assertRaises(serializers.ValidationError, field.from_native, '')
|
|
self.assertRaises(serializers.ValidationError, field.from_native, [])
|
|
|
|
|
|
class TestManyRelatedMixin(TestCase):
|
|
def test_missing_many_to_many_related_field(self):
|
|
'''
|
|
Regression test for #632
|
|
|
|
https://github.com/tomchristie/django-rest-framework/pull/632
|
|
'''
|
|
field = serializers.RelatedField(many=True, read_only=False)
|
|
|
|
into = {}
|
|
field.field_from_native({}, None, 'field_name', into)
|
|
self.assertEqual(into['field_name'], [])
|
|
|
|
|
|
# Regression tests for #694 (`source` attribute on related fields)
|
|
|
|
class RelatedFieldSourceTests(TestCase):
|
|
def test_related_manager_source(self):
|
|
"""
|
|
Relational fields should be able to use manager-returning methods as their source.
|
|
"""
|
|
BlogPost.objects.create(title='blah')
|
|
field = serializers.RelatedField(many=True, source='get_blogposts_manager')
|
|
|
|
class ClassWithManagerMethod(object):
|
|
def get_blogposts_manager(self):
|
|
return BlogPost.objects
|
|
|
|
obj = ClassWithManagerMethod()
|
|
value = field.field_to_native(obj, 'field_name')
|
|
self.assertEqual(value, ['BlogPost object'])
|
|
|
|
def test_related_queryset_source(self):
|
|
"""
|
|
Relational fields should be able to use queryset-returning methods as their source.
|
|
"""
|
|
BlogPost.objects.create(title='blah')
|
|
field = serializers.RelatedField(many=True, source='get_blogposts_queryset')
|
|
|
|
class ClassWithQuerysetMethod(object):
|
|
def get_blogposts_queryset(self):
|
|
return BlogPost.objects.all()
|
|
|
|
obj = ClassWithQuerysetMethod()
|
|
value = field.field_to_native(obj, 'field_name')
|
|
self.assertEqual(value, ['BlogPost object'])
|
|
|
|
def test_dotted_source(self):
|
|
"""
|
|
Source argument should support dotted.source notation.
|
|
"""
|
|
BlogPost.objects.create(title='blah')
|
|
field = serializers.RelatedField(many=True, source='a.b.c')
|
|
|
|
class ClassWithQuerysetMethod(object):
|
|
a = {
|
|
'b': {
|
|
'c': BlogPost.objects.all()
|
|
}
|
|
}
|
|
|
|
obj = ClassWithQuerysetMethod()
|
|
value = field.field_to_native(obj, 'field_name')
|
|
self.assertEqual(value, ['BlogPost object'])
|
|
|
|
# Regression for #1129
|
|
def test_exception_for_incorect_fk(self):
|
|
"""
|
|
Check that the exception message are correct if the source field
|
|
doesn't exist.
|
|
"""
|
|
from rest_framework.tests.models import ManyToManySource
|
|
class Meta:
|
|
model = ManyToManySource
|
|
attrs = {
|
|
'name': serializers.SlugRelatedField(
|
|
slug_field='name', source='banzai'),
|
|
'Meta': Meta,
|
|
}
|
|
|
|
TestSerializer = type(str('TestSerializer'),
|
|
(serializers.ModelSerializer,), attrs)
|
|
with self.assertRaises(AttributeError):
|
|
TestSerializer(data={'name': 'foo'})
|