django admin dont register models when I change the location of the admin file code example

Example 1: show post id on django admin interface

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

admin.site.register(Book, BookAdmin)

Example 2: what is admin.tabularinline django

from django.db import models

class Author(models.Model):
   name = models.CharField(max_length=100)

class Book(models.Model):
   author = models.ForeignKey(Author, on_delete=models.CASCADE)
   title = models.CharField(max_length=100)

Tags:

Misc Example

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