隐藏表单域中的Django外键

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)

from django import forms
from .models import Book

class BookForm(forms.ModelForm):
    class Meta:
        model = Book
        fields = ['title', 'author']
        widgets = {
            'author': forms.HiddenInput()
        }

from django.shortcuts import render, redirect
from .forms import BookForm

def create_book(request):
    if request.method == 'POST':
        form = BookForm(request.POST)
        if form.is_valid():
            book = form.save()
            # 处理其他逻辑
            return redirect('book_detail', pk=book.pk)
    else:
        form = BookForm()
    return render(request, 'create_book.html', {'form': form})