dz0

from django.db import ProgrammingError, models
from django.db.models.constants import LOOKUP_SEP
from django.db.models.query import normalize_prefetch_lookups
from rest_framework import serializers
from rest_framework.utils import model_meta


class OptimizeRelatedModelViewSetMetaclass(type):
    """
    This metaclass optimizes the queryset using `prefetch_related` and `select_related`.

dz0

[T]he difference between a bad programmer and a 
good one is whether he considers his code or his 
data structures more important. Bad programmers 
worry about the code. Good programmers worry about 
data structures and their relationships. 
-- Linus Torvalds
~~~
Clarity and brevity sometimes are at odds. 
When they are, I choose clarity. 
-- Jacob Kaplan-Moss