django - Chaining queries through related objects -
given scenario like:
from django.db import models class player(models.model): playername = models.charfield() class team(models): teamname = models.charfield() class members(models): player = models.foreignkey(player) team = models.foreignkey(team) class division(models): divname = models.charfield() class divisionteam(models): division = models.foreignkey(division) team = models.foreignkey(team)
how can list distinct players in division id = 5? i've through q , f expressions, i'm not looking complex set of or's. wondering if there way chain number of object1_set.object2_set.all()
type structures, or set nested loops build object (to passed template via context) eventual {% p in players %}
type loop in template. div id passed through request variable.
you do:
players = player.objects.filter(members__team__divisionteam__division_id=5).distinct()
of course, suggested in other answer, models simplified (by using manytomany
rather explicitly managing it)
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