from django import forms
from django.contrib.auth.models import User, Group
from django.shortcuts import get_object_or_404

class SelectUserForm(forms.Form):
    pk = forms.ChoiceField(
        label="Utilisateur",
        help_text="Sera ajouté aux administrateurs du site.",
        validators=[],
    )

    def get_user(self):
        pk = self.cleaned_data['pk']
        return get_object_or_404(User, pk=pk)

    def populate(self):
        admins,_ = Group.objects.get_or_create(name='admins')
        choices = [(u.pk, u.first_name + ' ' + u.last_name + '(' + u.username + ')') for u in User.objects.all()]
        self.fields['pk'].choices = choices