qrtr-services/api/mixins.py

32 lines
1.2 KiB
Python

class ReadWriteSerializerMixin(object):
"""
Overrides get_serializer_class to choose the read serializer
for GET requests and the write serializer for POST requests.
Set read_serializer_class and write_serializer_class attributes on a
viewset.
"""
read_serializer_class = None
write_serializer_class = None
def get_serializer_class(self):
if self.action in ["create", "update", "partial_update", "destroy"]:
return self.get_write_serializer_class()
return self.get_read_serializer_class()
def get_read_serializer_class(self):
assert self.read_serializer_class is not None, (
"'%s' should either include a `read_serializer_class` attribute,"
"or override the `get_read_serializer_class()` method."
% self.__class__.__name__
)
return self.read_serializer_class
def get_write_serializer_class(self):
assert self.write_serializer_class is not None, (
"'%s' should either include a `write_serializer_class` attribute,"
"or override the `get_write_serializer_class()` method."
% self.__class__.__name__
)
return self.write_serializer_class