django admin.py for content managment.

admin.py

from django.contrib import admin
from units.models import Unit
from references_u.models import ReferenceU
from qna.models import Question, QuestionHints, QuestionAnswer, QuestionAnswerChoice

class ReferenceUInline(admin.StackedInline):
	model = ReferenceU
	extra = 1

class QuestionHintsInline(admin.StackedInline):
	model = QuestionHints
	extra = 2
	
class QuestionAnswerInline(admin.StackedInline):
	model = QuestionAnswer
	extra = 1

class QuestionAnswerChoiceInline(admin.StackedInline):
	model = QuestionAnswerChoice
	extra = 1
	
class QuestionInline(admin.StackedInline):
	#change_form_template = ['admin/qna/change_form.html']
	model = Question
	inlines = [QuestionHintsInline, QuestionAnswerInline, QuestionAnswerChoiceInline]
	extra = 3
	
class UnitsAdmin(admin.ModelAdmin):
	change_form_template = ['admin/units/change_form.html']
	date_heiarchy = 'created'
	inlines = [ReferenceUInline, QuestionInline]
	
admin.site.register(Unit, UnitsAdmin)