mirror of
https://github.com/encode/django-rest-framework.git
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87 lines
3.1 KiB
Python
87 lines
3.1 KiB
Python
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from django.db import models
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from django.test import TestCase
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from rest_framework import serializers
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class Target(models.Model):
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name = models.CharField(max_length=100)
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class Source(models.Model):
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name = models.CharField(max_length=100)
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targets = models.ManyToManyField(Target, related_name='sources')
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class TargetSerializer(serializers.ModelSerializer):
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sources = serializers.ManyPrimaryKeyRelatedField()
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class Meta:
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fields = ('id', 'name', 'sources')
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model = Target
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class SourceSerializer(serializers.ModelSerializer):
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class Meta:
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model = Source
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# TODO: Add test that .data cannot be accessed prior to .is_valid
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class PrimaryKeyManyToManyTests(TestCase):
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def setUp(self):
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for idx in range(1, 4):
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target = Target(name='target-%d' % idx)
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target.save()
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source = Source(name='source-%d' % idx)
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source.save()
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for target in Target.objects.all():
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source.targets.add(target)
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def test_many_to_many_retrieve(self):
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serializer = SourceSerializer(instance=Source.objects.all())
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expected = [
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{'id': 1, 'name': u'source-1', 'targets': [1]},
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{'id': 2, 'name': u'source-2', 'targets': [1, 2]},
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{'id': 3, 'name': u'source-3', 'targets': [1, 2, 3]}
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]
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self.assertEquals(serializer.data, expected)
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def test_reverse_many_to_many_retrieve(self):
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serializer = TargetSerializer(instance=Target.objects.all())
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expected = [
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{'id': 1, 'name': u'target-1', 'sources': [1, 2, 3]},
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{'id': 2, 'name': u'target-2', 'sources': [2, 3]},
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{'id': 3, 'name': u'target-3', 'sources': [3]}
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]
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self.assertEquals(serializer.data, expected)
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def test_many_to_many_update(self):
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data = {'id': 1, 'name': u'source-1', 'targets': [1, 2, 3]}
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serializer = SourceSerializer(data, instance=Source.objects.get(pk=1))
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self.assertTrue(serializer.is_valid())
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self.assertEquals(serializer.data, data)
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# Ensure source 1 is updated, and everything else is as expected
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serializer = SourceSerializer(instance=Source.objects.all())
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expected = [
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{'id': 1, 'name': u'source-1', 'targets': [1, 2, 3]},
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{'id': 2, 'name': u'source-2', 'targets': [1, 2]},
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{'id': 3, 'name': u'source-3', 'targets': [1, 2, 3]}
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]
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self.assertEquals(serializer.data, expected)
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def test_reverse_many_to_many_update(self):
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data = {'id': 1, 'name': u'target-0', 'sources': [1]}
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serializer = TargetSerializer(data, instance=Target.objects.get(pk=1))
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self.assertTrue(serializer.is_valid())
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self.assertEquals(serializer.data, data)
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# Ensure target 1 is updated, and everything else is as expected
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serializer = TargetSerializer(instance=Target.objects.all())
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expected = [
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{'id': 1, 'name': u'target-1', 'sources': [1]},
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{'id': 2, 'name': u'target-2', 'sources': [2, 3]},
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{'id': 3, 'name': u'target-3', 'sources': [3]}
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]
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self.assertEquals(serializer.data, expected)
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