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