class user(models.Model):
    username = models.CharField(max_length=50)

class group(models.Model):
    groupname = models.CharField(max_length=50)
    users = models.ManyToManyField(user)
    groups = models.ManyToManyField('self')

there are my models.

I have no idea to get a complete group list in such models, anyone
give me a suggestion.

example:
user U1 belong group G1 and group G1 belong G2, I want get G1 and G2 via U1.
like this

def get_all_groups(user):
    return all_groups

>>>get_all-groups(U1)
[G1, G2]

that all.

Thank.




On Tue, Feb 10, 2009 at 12:18 PM, khsing <khsing...@gmail.com> wrote:
> Alex, thanks, now it work.
>
> now have a new problem is may a group can contain itself, this will be a loop.
>
> how to avoid this condition?
>
>
>
> On Tue, Feb 10, 2009 at 11:28 AM, Alex Gaynor <alex.gay...@gmail.com> wrote:
>>
>>
>> On Mon, Feb 9, 2009 at 10:18 PM, khsing <khsing...@gmail.com> wrote:
>>>
>>> I want design a group that can contain other groups, and one group can
>>> belong many groups.
>>>
>>> I write such code below, but not right.
>>>
>>> class Group(models.Model):
>>>    groups = models.ManyToManyField(Group)
>>>
>>> any suggestion?
>>>
>>> or how to design such a group.
>>>
>>> thanks.
>>>
>>> --
>>> A man live in jail and want to break.
>>> http://blog.khsing.net
>>>
>>>
>>
>> To have a relationship with oneself you do
>>
>> ManyToManyField("self")
>>
>> --
>> "I disapprove of what you say, but I will defend to the death your right to
>> say it." --Voltaire
>> "The people's good is the highest law."--Cicero
>>
>> >>
>>
>
>
>
> --
> A man live in jail and want to break.
> http://blog.khsing.net
>



-- 
A man live in jail and want to break.
http://blog.khsing.net

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