def clean_request_params(self, request):
request_params = request.request_params
request_filters = {}
for filter_name in request_params.keys():
field_name, filter_type = filter_operators. \
split_to_field_and_filter_type(filter_name)
cleaned_field_value = self._get_filter_value(
request, field_name, request_params[filter_name], filter_type)
attribute_name = self._get_attribute_name(field_name)
if filter_type is not None:
attribute_name = filter_operators.OPERATOR_SEPARATOR.join(
[attribute_name, filter_type])
request_filters[attribute_name] = cleaned_field_value
if 'order_by' in request_filters:
order_by = filter_operators.transform_to_list(
request_filters['order_by'])
request_filters['order_by'] = \
[self._get_attribute_name(field_name)
for field_name in order_by]
if 'aggregate_by' in request_filters:
aggregate_by = filter_operators.transform_to_list(
request_filters['aggregate_by'])
request_filters['aggregate_by'] = \
[self._get_attribute_name(field_name)
for field_name in aggregate_by]
return request_filters
def clean_request_params(self, request):
request_params = request.request_params
request_filters = {}
for filter_name in request_params.keys():
field_name, filter_type = filter_operators. \
split_to_field_and_filter_type(filter_name)
cleaned_field_value = self._get_filter_value(
request, field_name, request_params[filter_name], filter_type)
attribute_name = self._get_attribute_name(field_name)
if filter_type is not None:
attribute_name = filter_operators.OPERATOR_SEPARATOR.join(
[attribute_name, filter_type])
request_filters[attribute_name] = cleaned_field_value
if 'order_by' in request_filters:
order_by = filter_operators.transform_to_list(request_filters[
'order_by'])
request_filters['order_by'] = \
[self._get_attribute_name(field_name)
for field_name in order_by]
if 'aggregate_by' in request_filters:
aggregate_by = filter_operators.transform_to_list(request_filters[
'aggregate_by'])
request_filters['aggregate_by'] = \
[self._get_attribute_name(field_name)
for field_name in aggregate_by]
return request_filters
def get_fields_to_serialize(self, request):
schema_fields = self.schema_cls._meta.fields
if request.context_params.get("crud_action") == CrudActions.READ_LIST:
return self.schema_cls.list_fields()
elif request.context_params.get("crud_action") == CrudActions.GET_AGGREGATES:
aggregate_by_fields = filter_operators.transform_to_list(request.request_params.get("aggregate_by", []))
return {key: schema_fields[key] for key in aggregate_by_fields}
return schema_fields
def get_fields_to_serialize(self, request):
schema_fields = self.schema_cls._meta.fields
if request.context_params.get('crud_action') == CrudActions.READ_LIST:
return self.schema_cls.list_fields()
elif request.context_params.get('crud_action') == \
CrudActions.GET_AGGREGATES:
aggregate_by_fields = filter_operators.transform_to_list(
request.request_params.get('aggregate_by', []))
return {key: schema_fields[key] for key in aggregate_by_fields}
return schema_fields
def validate_aggregate_by(self, request_params):
aggregate_by_params = request_params.get('aggregate_by', [])
aggregate_by_params = filter_operators.transform_to_list(
aggregate_by_params)
validation_errors = {}
for field_name in aggregate_by_params:
if field_name not in self.aggregate_by_fields:
validation_errors.update(
{field_name: "Aggregating by this field is not allowed"})
if validation_errors:
return validation_errors
return None
def validate_aggregate_by(self, request_params):
aggregate_by_params = request_params.get('aggregate_by', [])
aggregate_by_params = filter_operators.transform_to_list(
aggregate_by_params)
validation_errors = {}
for field_name in aggregate_by_params:
if field_name not in self.aggregate_by_fields:
validation_errors.update(
{field_name: "Aggregating by this field is not allowed"})
if validation_errors:
return validation_errors
return None
def validate_order_by(self, request_params):
order_by_params = request_params.get('order_by', [])
order_by_params = filter_operators.transform_to_list(order_by_params)
validation_errors = {}
for order_by_field_name in order_by_params:
field_name, order_by_type = filter_operators. \
split_to_field_and_order_type(order_by_field_name)
if field_name not in self.order_by_fields:
validation_errors.update({field_name: "Ordering not allowed"})
if validation_errors:
return validation_errors
return None
def validate_order_by(self, request_params):
order_by_params = request_params.get('order_by', [])
order_by_params = filter_operators.transform_to_list(order_by_params)
validation_errors = {}
for order_by_field_name in order_by_params:
field_name, order_by_type = filter_operators. \
split_to_field_and_order_type(order_by_field_name)
if field_name not in self.order_by_fields:
validation_errors.update(
{field_name: "Ordering not allowed"})
if validation_errors:
return validation_errors
return None
