root/questionnaire/admin.py

from django.contrib import admin
from models import *

adminsite = admin.AdminSite()
adminsite.index_template = 'admin/admin_index.html'

class RegUserAdmin(admin.ModelAdmin):
    list_display = ['email']
    search_fields = ['email']

class CategoryAdmin(admin.ModelAdmin):
    list_display = ['name', 'nr']

class ChoiceInline(admin.TabularInline):
    model = Choice
    extra = 5

class ChoiceAdmin(admin.ModelAdmin):
    list_display = ['name', 'nr', 'question']

class QuestionAdmin(admin.ModelAdmin):
    inlines = [ChoiceInline]
    list_filter = ['type']
    search_fields = ['nr', 'type', 'text']

class AnswerAdmin(admin.ModelAdmin):
    search_fields = ['user', 'question', 'answer']
    list_display = ['user', 'question']

adminsite.register(RegUser, RegUserAdmin)
adminsite.register(Category, CategoryAdmin)
adminsite.register(Question, QuestionAdmin)
adminsite.register(Choice, ChoiceAdmin)
adminsite.register(Answer, AnswerAdmin)