问题描述
我无法弄清楚我在这里做错了什么.我的错误是:/admin/'CategoryAdmin.fields' 的配置不当必须是列表或元组.
I can't figure out what I'm doing wrong here. My error is: ImproperlyConfigured at /admin/ 'CategoryAdmin.fields' must be a list or tuple.
CategoryAdmin.fields 不是元组吗?我读错了吗?
Isn't the CategoryAdmin.fields a tuple? Am I reading this wrong?
admin.py..
class CategoryAdmin(admin.ModelAdmin):
fields = ('title')
list_display = ('id', 'title', 'creation_date')
class PostAdmin(admin.ModelAdmin):
fields = ('author', 'title', 'content')
list_display = ('id', 'title', 'creation_date')
admin.site.register(
models.Category,
CategoryAdmin
)
admin.site.register(
models.Post,
PostAdmin
)
推荐答案
不，不是.您需要添加一个逗号:
No, it is not. You need to add a comma:
fields = ('title',)
正是 逗号 使它成为一个元组.括号在这里实际上只是可选的:
It is the comma that makes this a tuple. The parenthesis are really just optional here:
>>> ('title')
'title'
>>> 'title',
('title',)
括号当然仍然是个好主意，带括号的元组更容易在视觉上发现，并且括号将函数调用中的元组与其他参数(foo(('title',), 'bar') 与 foo('title', 'bar')) 不同.
The parenthesis are of course still a good idea, with parenthesis tuples are easier to spot visually, and the parenthesis distinguish the tuple in a function call from other parameters (foo(('title',), 'bar') is different from foo('title', 'bar')).
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