Re: m2m relation just working in one direction

Mike,

Cool, you are right! Changing the related_name to something different
than groups seems to solve the problem. Thank you very much :-)

Roberto



On 02/24/2013 11:30 PM, Mike Dewhirst wrote:
> Roberto
>
> I'm not entirely sure but it is possible that your group is getting
> mixed up with the contrib.auth group. I would try changing the name of
> my group temporarily to something else just to eliminate that.
>
> Mike
>
> On 25/02/2013 8:58am, Roberto López López wrote:
>> Hi,
>>
>> I have a problem involving a relation between two entities, Person and
>> Group.
>>
>> from django.contrib.auth.models import User
>> from django.db import models
>>
>> class Group(models.Model):
>> employees = models.ManyToManyField('staff.Person',
>> related_name='groups')
>> leader = models.OneToOneField('staff.Person',
>> related_name='led_group')
>>
>> class Person(User):
>> pass
>>
>>
>> $ python manage.py shell
>>
>> In [1]: from group.models import Group
>>
>> In [2]: from staff.models import Person
>>
>> In [3]: p = Person.objects.create(username='person1',
>> first_name='person 1')
>>
>> In [5]: g = Group.objects.create(group_name='group 1', leader=p)
>>
>> In [9]: g.employees.all()
>> Out[9]: []
>>
>> In [10]: g.employees.add(p)
>>
>> In [11]: g.employees.all()
>> Out[11]: []
>>
>> In [16]: p.groups.all()
>> Out[16]: [<Group: group 1>]
>>
>>
>> As you can see, when I add a person through the group, it's not added to
>> group.employees but to person.groups. Can you see any mistake in my
>> code? Thanks in advance for your suggestions :-)
>>
>

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