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Update serializers.py

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Prevent iterating over a string that is supposed to be an iterable <==> Prevent read_only_fields = ('some_string)
This commit is contained in:
elmkarami 2014-03-19 15:41:25 +00:00
parent 24a6882232
commit 5c87db96c5
1 changed files with 7 additions and 1 deletions
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8
rest_framework/serializers.py
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@ -757,6 +757,9 @@ class ModelSerializer(Serializer):
field.read_only = True
ret[accessor_name] = field
#Ensure that 'read_only_fields is an iterable
assert isinstance(self.opts.read_only_fields, (list, tuple)), '`read_only_fields` must be a list or tuple'
# Add the `read_only` flag to any fields that have bee specified
# in the `read_only_fields` option
@ -771,7 +774,10 @@ class ModelSerializer(Serializer):
"on serializer '%s'." %
(field_name, self.__class__.__name__))
ret[field_name].read_only = True
# Ensure that 'write_only_fields' is an iterabe
assert isinstance(self.opts.write_only_fields, (list, tuple)), '`read_only_fields` must be a list or tuple'
for field_name in self.opts.write_only_fields:
assert field_name not in self.base_fields.keys(), (
"field '%s' on serializer '%s' specified in "