Also see:
http://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.ManyToManyField.symmetrical
-- dz
On Sat, Mar 28, 2009 at 11:57 AM, Alex Gaynor <alex.gay...@gmail.com> wrote:
>
>
> On Sat, Mar 28, 2009 at 10:55 AM, mahesh <forvai...@gmail.com> wrote:
>>
>> I am working on a (College) course manager project. Here is a
>> situation where any course have 0 (Zero) or More Prerequisites, anyone
>> who register for a course should satisfy dependency.
>>
>> <project>/course_modue/model.py hash this..
>>
>> Here how my model looks like ..
>>
>> class CourseRelation(models.Model):
>> course = models.CharField(max_length=64)
>> prereq = models.ManyToManyField(CourseRelation)
>> instructor = models.ForeignKey(User)
>> is_active = models.BooleanField(default=False)
>>
>> Command - python manage.py sqlall course_module error out saying
>> File "<path>/course_module/models.py", line 27, in CourseRelation
>> prereq = models.ManyToManyField(CourseRelation)
>> NameError: name 'CourseRelation' is not defined
>>
>> Is this a case of forward referencing ? how do I solve it ?
>>
>> Thx/Mahesh.
>>
>>
>>
>
> To do references to the same model you do ManyToManyField('self').
>
> Alex
>
> --
> "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
>
> >
>
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