Commit 3ae95532 authored by Jean-Paul Smets's avatar Jean-Paul Smets

Log based calculation of precision

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10097 20353a03-c40f-0410-a6d1-a30d3c3de9de
parent d7a59ae2
......@@ -27,8 +27,9 @@
#
##############################################################################
from AccessControl import ClassSecurityInfo
from math import log
from AccessControl import ClassSecurityInfo
from DateTime import DateTime
from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
......@@ -708,8 +709,11 @@ class Resource(XMLMatrix, CoreResource, Variated):
def getQuantityPrecision(self):
"""Return the floating point precision of a quantity.
"""
quantity = str(self.getBaseUnitQuantity())
i = quantity.find('.')
if i < 0:
try:
return int(round(- log(self.getBaseUnitQuantity(), 10),0))
except TypeError:
return 0
return 0
return len(quantity[i+1:].rstrip('0'))
\ No newline at end of file
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