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Migrated the field_subclsasing doctests. Thanks to Alex Gaynor.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13780 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Original file line number | Original file line | Diff line number | Diff line change |
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@@ -1,21 +1,75 @@ | |||
from django.core import serializers | |||
from django.test import TestCase | from django.test import TestCase | ||
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from models import DataModel | from fields import Small | ||
from models import DataModel, MyModel | |||
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class CustomField(TestCase): | class CustomField(TestCase): | ||
def test_defer(self): | def test_defer(self): | ||
d = DataModel.objects.create(data=[1, 2, 3]) | d = DataModel.objects.create(data=[1, 2, 3]) | ||
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self.assertTrue(isinstance(d.data, list)) | self.assertTrue(isinstance(d.data, list)) | ||
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d = DataModel.objects.get(pk=d.pk) | d = DataModel.objects.get(pk=d.pk) | ||
self.assertTrue(isinstance(d.data, list)) | self.assertTrue(isinstance(d.data, list)) | ||
self.assertEqual(d.data, [1, 2, 3]) | self.assertEqual(d.data, [1, 2, 3]) | ||
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d = DataModel.objects.defer("data").get(pk=d.pk) | d = DataModel.objects.defer("data").get(pk=d.pk) | ||
d.save() | d.save() | ||
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d = DataModel.objects.get(pk=d.pk) | d = DataModel.objects.get(pk=d.pk) | ||
self.assertTrue(isinstance(d.data, list)) | self.assertTrue(isinstance(d.data, list)) | ||
self.assertEqual(d.data, [1, 2, 3]) | self.assertEqual(d.data, [1, 2, 3]) | ||
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def test_custom_field(self): | |||
# Creating a model with custom fields is done as per normal. | |||
s = Small(1, 2) | |||
self.assertEqual(str(s), "12") | |||
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m = MyModel.objects.create(name="m", data=s) | |||
# Custom fields still have normal field's attributes. | |||
self.assertEqual(m._meta.get_field("data").verbose_name, "small field") | |||
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# The m.data attribute has been initialised correctly. It's a Small | |||
# object. | |||
self.assertEqual((m.data.first, m.data.second), (1, 2)) | |||
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# The data loads back from the database correctly and 'data' has the | |||
# right type. | |||
m1 = MyModel.objects.get(pk=m.pk) | |||
self.assertTrue(isinstance(m1.data, Small)) | |||
self.assertEqual(str(m1.data), "12") | |||
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# We can do normal filtering on the custom field (and will get an error | |||
# when we use a lookup type that does not make sense). | |||
s1 = Small(1, 3) | |||
s2 = Small("a", "b") | |||
self.assertQuerysetEqual( | |||
MyModel.objects.filter(data__in=[s, s1, s2]), [ | |||
"m", | |||
], | |||
lambda m: m.name, | |||
) | |||
self.assertRaises(TypeError, lambda: MyModel.objects.filter(data__lt=s)) | |||
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# Serialization works, too. | |||
stream = serializers.serialize("json", MyModel.objects.all()) | |||
self.assertEqual(stream, '[{"pk": 1, "model": "field_subclassing.mymodel", "fields": {"data": "12", "name": "m"}}]') | |||
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obj = list(serializers.deserialize("json", stream))[0] | |||
self.assertEqual(obj.object, m) | |||
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# Test retrieving custom field data | |||
m.delete() | |||
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m1 = MyModel.objects.create(name="1", data=Small(1, 2)) | |||
m2 = MyModel.objects.create(name="2", data=Small(2, 3)) | |||
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self.assertQuerysetEqual( | |||
MyModel.objects.all(), [ | |||
"12", | |||
"23", | |||
], | |||
lambda m: str(m.data) | |||
) |