我有以下模型类:
class Category(models.Model):
category = models.CharField('category', max_length=200, blank=False)
class Book(models.Model):
title = models.CharField('title', max_length=200, blank=False)
categories = models.ManyToManyField(Category, blank=False, through='Book_Category')
class Book_Category(models.Model):
book = models.ForeignKey(Book)
category = models.ForeignKey(Category)
在管理界面中添加新书对象时,我还想添加一个新类别和book_category关系。
如果我在BookAdmin中包含类别
class BookAdmin(admin.ModelAdmin):
fieldsets = [
(None, {'fields': ['categories', ]}), ...
我收到can't include the ManyToManyField field 'categories' because 'categories' manually specifies a 'through' model
错误。
有没有办法实现所需的功能?
答案 0 :(得分:13)
class CategoryInline(admin.TabularInline):
model = Book_Category
extra = 3 # choose any number
class BookAdmin(admin.ModelAdmin):
inlines = (CategoryInline,)
admin.site.register(Book, BookAdmin)