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Raise error when source= use on a child.

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Closes #3292
This commit is contained in:
José Padilla 2015-08-19 11:38:31 -04:00 committed by José Padilla
parent dd850df1d8
commit 8af366a732
2 changed files with 30 additions and 0 deletions
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12
rest_framework/fields.py
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@ -1381,7 +1381,13 @@ class ListField(Field):
def __init__(self, *args, **kwargs): def __init__(self, *args, **kwargs):
self.child = kwargs.pop('child', copy.deepcopy(self.child)) self.child = kwargs.pop('child', copy.deepcopy(self.child))
self.allow_empty = kwargs.pop('allow_empty', True) self.allow_empty = kwargs.pop('allow_empty', True)
assert not inspect.isclass(self.child), '`child` has not been instantiated.' assert not inspect.isclass(self.child), '`child` has not been instantiated.'
assert self.child.source is None, (
"The `source` argument is not meaningful when applied to a `child=` field. "
"Remove `source=` from the field declaration."
)
super(ListField, self).__init__(*args, **kwargs) super(ListField, self).__init__(*args, **kwargs)
self.child.bind(field_name='', parent=self) self.child.bind(field_name='', parent=self)
@ -1424,7 +1430,13 @@ class DictField(Field):
def __init__(self, *args, **kwargs): def __init__(self, *args, **kwargs):
self.child = kwargs.pop('child', copy.deepcopy(self.child)) self.child = kwargs.pop('child', copy.deepcopy(self.child))
assert not inspect.isclass(self.child), '`child` has not been instantiated.' assert not inspect.isclass(self.child), '`child` has not been instantiated.'
assert self.child.source is None, (
"The `source` argument is not meaningful when applied to a `child=` field. "
"Remove `source=` from the field declaration."
)
super(DictField, self).__init__(*args, **kwargs) super(DictField, self).__init__(*args, **kwargs)
self.child.bind(field_name='', parent=self) self.child.bind(field_name='', parent=self)

18
tests/test_fields.py
View File

@ -1416,6 +1416,15 @@ class TestListField(FieldValues):
] ]
field = serializers.ListField(child=serializers.IntegerField()) field = serializers.ListField(child=serializers.IntegerField())
def test_no_source_on_child(self):
with pytest.raises(AssertionError) as exc_info:
serializers.ListField(child=serializers.IntegerField(source='other'))
assert str(exc_info.value) == (
"The `source` argument is not meaningful when applied to a `child=` field. "
"Remove `source=` from the field declaration."
)
class TestEmptyListField(FieldValues): class TestEmptyListField(FieldValues):
""" """
@ -1461,6 +1470,15 @@ class TestDictField(FieldValues):
] ]
field = serializers.DictField(child=serializers.CharField()) field = serializers.DictField(child=serializers.CharField())
def test_no_source_on_child(self):
with pytest.raises(AssertionError) as exc_info:
serializers.DictField(child=serializers.CharField(source='other'))
assert str(exc_info.value) == (
"The `source` argument is not meaningful when applied to a `child=` field. "
"Remove `source=` from the field declaration."
)
class TestUnvalidatedDictField(FieldValues): class TestUnvalidatedDictField(FieldValues):
""" """