signup_form.py

from django import forms
from viewflow.forms import Layout, Row, FormSetField, Caption, FormSet
from . import Form


class EmailForm(Form):
    email = forms.EmailField()
    description = forms.CharField()


class BaseEmailFormset(forms.BaseFormSet):
    def clean(self):
        if any(self.errors):
            return
        emails = []
        for form in self.forms:
            email = form.cleaned_data.get("email")
            if not email:
                continue
            if email in emails:
                raise forms.ValidationError("Emails should be distinct.")
            emails.append(email)


EmailFormSet = forms.formset_factory(
    EmailForm, extra=3, can_delete=True, formset=BaseEmailFormset
)


class AddressForm(Form):
    line_1 = forms.CharField(max_length=250)
    line_2 = forms.CharField(max_length=250)
    state = forms.CharField(max_length=100)
    city = forms.CharField(max_length=100)
    zipcode = forms.CharField(max_length=10)

    layout = Layout(
        Caption("Address"),
        "line_1",
        "line_2",
        "state",
        Row("city", "zipcode"),
    )


AddressFormSet = forms.formset_factory(AddressForm, extra=3, can_delete=True)


class SignupForm(Form):
    username = forms.CharField(
        max_length=50,
        widget=forms.TextInput(attrs={"leading-icon": "account_box"}),
    )
    first_name = forms.CharField(max_length=250)
    last_name = forms.CharField(max_length=250)
    date_of_birth = forms.DateField()
    emails = FormSetField(formset_class=EmailFormSet)
    addresses = FormSetField(formset_class=AddressFormSet)

    layout = Layout(
        "username",
        Row("first_name", "last_name", "date_of_birth"),
        "emails",
        FormSet("addresses", card_desktop=4),
    )