自定义选项卡中的Django admin StackedInline

# models.py
from django.db import models

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

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

# admin.py
from django.contrib import admin
from .models import Author, Book

class BookInline(admin.StackedInline):
    model = Book
    extra = 1  # 默认显示一个额外的空表单

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

admin.site.register(Author, AuthorAdmin)

from .models import Author, Book

class BookInline(admin.StackedInline):
    model = Book
    extra = 1

class BookInline(admin.TabularInline):
    model = Book
    extra = 5

from django.core.exceptions import ValidationError

class BookInline(admin.StackedInline):
    model = Book
    extra = 1

    def clean(self):
        super().clean()
        # 自定义验证逻辑
        for form in self.forms:
            if form.cleaned_data.get('title') == '':
                raise ValidationError("Title cannot be empty.")