pbp_com/apps/marketplace/admin.py

from django.contrib import admin 
from models import *

class CategoryAdmin(admin.ModelAdmin):
    prepopulated_fields = {'slug': ('title',)}

admin.site.register(Category, CategoryAdmin)
    
class SubcategoryAdmin(admin.ModelAdmin):
    prepopulated_fields = {'slug': ('title',)}

admin.site.register(Subcategory, SubcategoryAdmin)

class HoursInline(admin.TabularInline):
    "Easy editing of hours relations from the business entry page"
    extra=1
    model = Hours

class DiningHoursInline(admin.TabularInline):
    "Easy editing of hours relations from the business entry page"
    extra=2
    model = DiningHours

class BusinessPhotoInline(admin.TabularInline):
    "Easy editing of hours relations from the business entry page"
    extra=6
    model = BusinessPhoto

class BusinessAdmin(admin.ModelAdmin):
    raw_id_fields=('point','post_office',)
    list_display = ('name', 'point', 'status',)
    list_filter = ('status', 'categories', 'subcategories')
    search_fields = ('name', 'description',)
    prepopulated_fields = {'slug': ('name',)}
    inlines = [BusinessPhotoInline, HoursInline, DiningHoursInline,]
    filter_horizontal=("payment_accepted",)

admin.site.register(Business, BusinessAdmin)

class GuideAdmin(admin.ModelAdmin):
    list_display = ('title', 'pub_date', 'published', 'featured',)
    list_filter = ('published', 'featured')
    search_fields = ('title', 'description',)
    prepopulated_fields = {'slug': ('title',)}
    filter_horizontal = ("businesses",)

admin.site.register(Guide, GuideAdmin)

class BranchAdmin(admin.ModelAdmin):
    raw_id_fields=('point',)
    list_display = ('business', 'name', 'point', )
    search_fields = ('business', 'name', 'description',)
    prepopulated_fields = {'slug': ('name',)}
    inlines = [BusinessPhotoInline, HoursInline, DiningHoursInline,]
admin.site.register(Branch, BranchAdmin)

admin.site.register(PaymentMethod)
admin.site.register(BusinessPhoto)
admin.site.register(Hours)
admin.site.register(Meal)
admin.site.register(Menu)
admin.site.register(DiningHours)
admin.site.register(Feature)
#admin.site.register(Link)
#admin.site.register(Reference)
#admin.site.register(Ad)