initial commit

app/apps/common/functions/decimals.py

@@ -0,0 +1,13 @@
+from decimal import Decimal, ROUND_DOWN
+
+
+def truncate_decimal(value, decimal_places):
+    """
+    Truncate a Decimal value to n decimal places without rounding.
+
+    :param value: The Decimal value to truncate
+    :param decimal_places: The number of decimal places to keep
+    :return: Truncated Decimal value
+    """
+    multiplier = Decimal(10**decimal_places)
+    return (value * multiplier).to_integral_value(rounding=ROUND_DOWN) / multiplier