Creating an object using Foreign Key for Users but filtered by group

[Vibhu Rishi]

Hi

I have Users and based on some requirements, I have created a few User Groups . e.g. I have a group of moderators.

Now, I am trying to create a form where a normal user can message the moderators.

So, I have a model to be used by the form something like :

class Message(models.Model):
     moderator = models.ForeignKey(User)
     user= models.ForeignKey(User)
     text = models.TextField(max_length=1000)
     date = models.DateField(default=datetime.now())

I want the moderator field to have keys to only those people who are in the group where name='Moderator'

I am not sure how to filter the ForeignKey in this case.

Why I want to do this --> is so that the form will have a dropdown list of moderators to choose from by the user when it is displayed. User selects the moderator, and enteres the message text - and sends it.

Regards,

Vibhu

--
Simplicity is the ultimate sophistication. - Leonardo da Vinci
Life is really simple, but we insist on making it complicated. - Confucius

[Helton Alves]

Hi brother,

so, I don't know if understand very well.

but I think that this is answer for your problems.

https://docs.djangoproject.com/en/dev/ref/contrib/admin/

vlw.

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Helton Alves 
Desenvolvedor web
Graduado em Sistemas de Informação - FACIMP
Cursando Metodologia do Ensino Superior - INESPO

[Carlos Futino]

Hi,

you could change the QuerySet of the ModelChoiceField. I'd do it in the forms __init__ method. Like this:

class MessageForm(forms.ModelForm):

def __init__(self,*args,**kwargs):

super(MessageForm,self). __init__(*args,**kwargs)

self.moderator.queryset = User.objects.filter(...*Place your query here*...)

 

 class Meta:

model=Message 

[Simon Charette]

You could use the `ForeignKey.limit_choices_to` option:

class Message(models.Model):
     moderator = models.ForeignKey(User, limit_choices_to={'groups__name': 'Moderator'})

     user= models.ForeignKey(User)
     text = models.TextField(max_length=1000)

     date = models.DateField(default=datetime.now())

[Vibhu Rishi]

Hi Simon,

this is exactly what I was looking for ! It works perfectly.

I had gone through the documentation for limit_choices_to but I was not able to figure out how to do the groups part.

Vibhu

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