Answers for "register models in django admin"

django register models

from django.contrib import admin
from .models import <modelname>

admin.site.register(<modelname>)

show post id on django admin interface

class BookAdmin(admin.ModelAdmin):
    readonly_fields = ('id',)

admin.site.register(Book, BookAdmin)

what is admin.tabularinline django

from django.contrib import admin

class BookInline(admin.TabularInline):
    model = Book

class AuthorAdmin(admin.ModelAdmin):
    inlines = [
        BookInline,
    ]