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django-nepkit/django_nepkit/forms.py
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Python

from datetime import date as python_date
from django import forms
from django.utils.translation import gettext_lazy as _
from nepali.datetime import nepalidate
from django_nepkit.utils import try_parse_nepali_date
from django_nepkit.validators import validate_nepali_phone_number
class NepaliDateFormField(forms.DateField):
"""
A Django Form Field for Nepali Date (Bikram Sambat).
"""
from .widgets import NepaliDatePickerWidget
widget = NepaliDatePickerWidget
def __init__(self, *args, **kwargs):
kwargs.pop("max_length", None)
super().__init__(*args, **kwargs)
def to_python(self, value):
if value in self.empty_values:
return None
if isinstance(value, nepalidate):
return value
if isinstance(value, python_date):
return nepalidate.from_date(value)
try:
parsed = try_parse_nepali_date(str(value))
if parsed is not None:
return parsed
raise ValueError("Invalid BS date format")
except Exception:
raise forms.ValidationError(
_("Enter a valid Nepali date in YYYY-MM-DD format."),
code="invalid",
)
class NepaliPhoneNumberFormField(forms.CharField):
"""
A Django Form Field for Nepali Phone Numbers.
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.validators.append(validate_nepali_phone_number)