def _get_field_or_error(self, field_name):
"""
Check that the attempted filter field is valid
:raises InvalidFilterError: If the filter field is not valid
"""
predeclared_fields = self.serializer_class._declared_fields
initialized_fields = self.get_serializer().fields if hasattr(
self, 'get_serializer') else {}
serializer_fields = predeclared_fields.copy()
# Merges fields that were declared on serializer with fields that may have been dynamically added
serializer_fields.update(initialized_fields)
if field_name not in serializer_fields:
raise InvalidFilterError(
detail="'{0}' is not a valid field for this endpoint.".format(
field_name))
if field_name not in getattr(self.serializer_class,
'filterable_fields', set()):
raise InvalidFilterFieldError(parameter='filter', value=field_name)
field = serializer_fields[field_name]
# You cannot filter on deprecated fields.
if isinstance(field, ShowIfVersion) and utils.is_deprecated(
self.request.version, field.min_version, field.max_version):
raise InvalidFilterFieldError(parameter='filter', value=field_name)
return serializer_fields[field_name]
def _get_field_or_error(self, field_name):
"""
Check that the attempted filter field is valid
:raises InvalidFilterError: If the filter field is not valid
"""
serializer_class = self.serializer_class
if field_name not in serializer_class._declared_fields:
raise InvalidFilterError(detail="'{0}' is not a valid field for this endpoint.".format(field_name))
if field_name not in getattr(serializer_class, 'filterable_fields', set()):
raise InvalidFilterFieldError(parameter='filter', value=field_name)
field = serializer_class._declared_fields[field_name]
# You cannot filter on deprecated fields.
if isinstance(field, ShowIfVersion) and utils.is_deprecated(self.request.version, field.min_version, field.max_version):
raise InvalidFilterFieldError(parameter='filter', value=field_name)
return serializer_class._declared_fields[field_name]
def _get_field_or_error(self, field_name):
"""
Check that the attempted filter field is valid
:raises InvalidFilterError: If the filter field is not valid
"""
if field_name not in self.serializer_class._declared_fields:
raise InvalidFilterError(detail="'{0}' is not a valid field for this endpoint.".format(field_name))
if field_name not in getattr(self.serializer_class, 'filterable_fields', set()):
raise InvalidFilterFieldError(parameter='filter', value=field_name)
return self.serializer_class._declared_fields[field_name]
