neptune/core/forms.py

from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.core.exceptions import FieldDoesNotExist

from .models import User

# from django.forms import ModelForm


# Create your forms here.
class RestrictedFormMixin:
    """
    This mixin is used to restrict the queryset of a form to the current user.
    The request object is passed from the view.
    Fieldargs is used to pass additional arguments to the queryset filter.
    """

    fieldargs = {}

    def __init__(self, *args, **kwargs):
        # self.fieldargs = {}
        self.request = kwargs.pop("request")
        super().__init__(*args, **kwargs)
        for field in self.fields:
            # Check it's not something like a CharField which has no queryset
            if not hasattr(self.fields[field], "queryset"):
                continue

            model = self.fields[field].queryset.model
            # Check if the model has a user field
            try:
                model._meta.get_field("user")
                # Add the user to the queryset filters
                self.fields[field].queryset = model.objects.filter(
                    user=self.request.user, **self.fieldargs.get(field, {})
                )
            except FieldDoesNotExist:
                pass


class NewUserForm(UserCreationForm):
    email = forms.EmailField(required=True)

    class Meta:
        model = User
        fields = (
            "username",
            "email",
            "first_name",
            "last_name",
            "password1",
            "password2",
        )

    def save(self, commit=True):
        user = super(NewUserForm, self).save(commit=False)
        user.email = self.cleaned_data["email"]
        if commit:
            user.save()
        return user


class CustomUserCreationForm(UserCreationForm):
    class Meta:
        model = User
        fields = "__all__"