def group(self, request, *args, **kwargs):
queryset = self.filter_queryset(self.get_queryset())
x_column = request.GET['_x_column']
x_lookup_name = request.GET.get('_x_lookup')
y_func = request.GET['_y_func'].lower()
y_column = request.GET.get('_y_column', 'id')
x_field = self.model._meta.get_field(x_column)
x_lookup = x_field.class_lookups.get(x_lookup_name)
y_field = self.model._meta.get_field(y_column)
if x_lookup:
x_field = x_lookup('none').output_field
x_serializer_class, x_serializer_kwargs = ModelSerializer().build_standard_field(x_column, x_field)
x_serializer = x_serializer_class(**x_serializer_kwargs)
y_serializer_class, y_serializer_kwargs = ModelSerializer().build_standard_field(y_column, y_field)
y_serializer = y_serializer_class(**y_serializer_kwargs)
queryset = GroupFilter().filter(queryset, {
'x_column': x_column,
'x_lookup': x_lookup,
'y_func': y_func,
'y_column': y_column
})
serializer = self.get_serializer(
queryset,
many=True,
group_serializer=x_serializer,
y_func_serializer=y_serializer
)
return Response(serializer.data)
def aggregate(self, request, *args, **kwargs):
queryset = self.filter_queryset(self.get_queryset())
y_func = request.GET['_y_func'].lower()
y_column = request.GET.get('_y_column', 'id')
y_field = self.model._meta.get_field(y_column)
y_serializer_class, y_serializer_kwargs = ModelSerializer(
).build_standard_field(y_column, y_field)
y_serializer = y_serializer_class(**y_serializer_kwargs)
queryset = AggregateFilter().filter(queryset, {
'y_func': y_func,
'y_column': y_column
})
serializer = self.get_serializer(queryset,
y_func_serializer=y_serializer)
return Response(serializer.data)