CODEWITHSUNDEEP
pythondjango
holms
holms

Reputation: 9580

Django users: get list of group, or how to convert MultipleChoiceField to ChoiceField

I've searched similar topics but haven't found what I need..

I extended Users model with UserAttributes model, some additional fields added and etc.. now I'm trying to make ModelForm out this.. so I have a little problem in here..

I WANT TO list groups as a ChoiceField not a MultipleChoiceField.. It's a requirement by specification so it must be so.

so here's the code..

from django.forms               import ModelForm
from django.contrib.auth.models import User
from helpdesk.models.userattributes      import *
from django.utils.translation import ugettext as _

class SettingsOperatorsForm(ModelForm):


    groups = forms.ChoiceField(
        label=_(u'Rights'),
        required=True,
        choices=["what's in here?"]
    )

    class Meta:
        model   = UserAttributes
        fields  = ('first_name', 'last_name', 'job_title', 'email', 'password', 'is_active', 'groups'  )

there's auth_group table in database, so i tried to make it like this , but I've got a no form displayed at all:

from django.contrib.auth.models import User, Group

groups = forms.ChoiceField(
    label=_(u'Rights'),
    required=True,
    choices=Group.objects.all()
)

I think it's better would be just to convert multipleChoiceField to ChoiceField

in plain talk:

alt text

should become just SELECT box.

Upvotes: 2

Views: 9962

Answers (3)

holms
holms

Reputation: 9580

it appears that it's that modelchoice would be wrong because current group in edit form will not be selected="Selected"

so this is solution FINALLY:

groups = forms.ModelMultipleChoiceField( 
    queryset=None, 
    required=True, 
    widget=GroupsSelect,
)

 def __init__(self, *args, **kw):  
    super(ModelForm, self).__init__(*args, **kw)
    self.fields['groups'].queryset=Group.objects.filter(user=self.instance.id)

#view
op = UserAttributes.objects.get(id=operator_id)
form = SettingsOperatorsForm(instance=op)

Upvotes: 0

Daniel Roseman
Daniel Roseman

Reputation: 599778

Setting the choices at form definition time, as you do in your answer, will mean that the form will never see any new Groups that are defined.

Rather than using a ChoiceField with a list comprehension for choices, you should use a ModelChoiceField with a queryset parameter:

groups = forms.ModelChoiceField(queryset=Group.objects.all())

Upvotes: 5

holms
holms

Reputation: 9580

Just a feedback, because 2hours no answers, so thnx to freenode #django =)

http://docs.djangoproject.com/en/dev/topics/forms/modelforms/

It's possible to override widgets for any field in Meta Class like this:

from django.forms import ModelForm

class AuthorForm(ModelForm):
    class Meta:
        model = Author
        widgets = { 'groups': forms.Select(),}

DOESN'T WORK

forms.ChoiceField() too.. nothing changed.. still displaying multichoice select..

UPDATE

from django.contrib.auth.models import User, Group
groups = forms.ChoiceField(
        required=True,
        choices = [ [g.id, g.name] for g in Group.objects.filter() ]
    )

This works.. it's ok but, why the hell widget override doesn't work????

RESOLVED because I have django 1.1 =( my stupidity..

Upvotes: 1

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