Thanks a lot! That worked.
On Tue, Jul 19, 2011 at 9:22 PM, Nan <ringe...@gmail.com> wrote:
>
> Try unique_together on employee and team in the TeamMember model -- it
> will throw an error if you try to add a record with the same employee
> and team as another.
>
> On Jul 19, 7:27 pm, Felipe Spychalski <spychal...@gmail.com> wrote:
>> Hello,
>>
>> I'm having an issue with my schema and the admin interface where I got
>> 2 tables with a ManyToMany relationship: Employee and Team.
>> The problem is I'm able to add one Employee to the same Team twice.
>> Is there a way to prevent this from happening? Adding 'unique' to the
>> Employee FK makes it so Employees can only join one Team).
>>
>> The code I'm using (irrelevant parts removed):
>>
>> from django.db import models
>> from django.contrib.auth.models import User
>>
>> class Employee(models.Model):
>> name = models.CharField(max_length=30, unique=True)
>> user = models.ForeignKey(User)
>>
>> class Team(models.Model):
>> name = models.CharField(max_length=60)
>> members = models.ManyToManyField('Employee', blank=True,
>> through='TeamMember')
>>
>> class TeamMember(models.Model):
>> employee = models.ForeignKey(Employee)
>> team = models.ForeignKey(Team)
>> is_leader = models.BooleanField('Is Leader?')
>>
>> Thanks in advance.
>
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