Files
WYGIWYH/app/apps/transactions/widgets.py

74 lines
2.3 KiB
Python

from datetime import datetime, date
from django import forms
from decimal import Decimal
from django.template.defaultfilters import floatformat
from django.utils.formats import get_format
def convert_to_decimal(value):
# Remove any whitespace
value = value.strip()
# Get the thousand and decimal separators from Django's localization settings
thousands_sep = get_format("THOUSAND_SEPARATOR")
decimal_sep = get_format("DECIMAL_SEPARATOR")
# Remove thousands separators and replace decimal separator with '.'
value = value.replace(thousands_sep, "")
value = value.replace(decimal_sep, ".")
# Convert to Decimal
if value:
return Decimal(value)
return None
class MonthYearWidget(forms.DateInput):
"""
Custom widget to display a month-year picker.
"""
input_type = "month" # Set the input type to 'month'
def format_value(self, value):
if isinstance(value, (datetime, date)):
return value.strftime("%Y-%m")
return value
class ArbitraryDecimalDisplayNumberInput(forms.TextInput):
"""A widget for displaying and inputing decimal numbers with the least amount of trailing zeros possible. You
must set this on your Form's __init__ method."""
def __init__(self, *args, **kwargs):
self.decimal_places = kwargs.pop("decimal_places", 2)
self.type = "text"
super().__init__(*args, **kwargs)
self.attrs.update(
{
"x-mask:dynamic": f"$money($input, '{get_format('DECIMAL_SEPARATOR')}', "
f"'{get_format('THOUSAND_SEPARATOR')}', '30')"
}
)
def format_value(self, value):
if value is not None and isinstance(value, Decimal):
# Strip trailing 0s, leaving a minimum of 2 decimal places
while (
abs(value.as_tuple().exponent) > self.decimal_places
and value.as_tuple().digits[-1] == 0
):
value = Decimal(str(value)[:-1])
value = floatformat(value, f"{self.decimal_places}g")
return value
def value_from_datadict(self, data, files, name):
value = super().value_from_datadict(data, files, name)
if value is not None:
# Remove any non-numeric characters except for the decimal point
value = convert_to_decimal(value)
return value