cached_context_processor.py

from functools import cached_property

class DataProxy:
  def __init__(self, user):
    self.user = user
    
  @cached_property
  def plan(self):
    return DBModel.objects.get(id=67)
  
  @cached_property
  def price_3d(self):
    return DBModelItem.objects.get(plan=self.plan, id=67)
  

def context_manager(request):
  return {"DATA": DataProxy(request.user)}