Django models - how to filter number of ForeignKey objects

Question

I have a models A and B, that are like this:

class A(models.Model):
  title = models.CharField(max_length=20)
  (...)

class B(mode         


        

Answer 1

I assume that joining or leaving the pool may not happen as often as listing (showing) the pools. I also believe that it would be more efficient for the users join/leave actions to update the pool display status. This way, listing & showing the pools would require less time as you would just run a single query for SHOW_STATUS of the pool objects.