# ------------------------------------------------------------------------------ # This file is part of Appy, a framework for building applications in the Python # language. Copyright (C) 2007 Gaetan Delannay # Appy is free software; you can redistribute it and/or modify it under the # terms of the GNU General Public License as published by the Free Software # Foundation; either version 3 of the License, or (at your option) any later # version. # Appy is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR # A PARTICULAR PURPOSE. See the GNU General Public License for more details. # You should have received a copy of the GNU General Public License along with # Appy. If not, see . # ------------------------------------------------------------------------------ from appy.fields import Field from appy.px import Px from appy.shared import utils as sutils # ------------------------------------------------------------------------------ class Float(Field): allowedDecimalSeps = (',', '.') allowedThousandsSeps = (' ', '') pxView = pxCell = Px(''' :value ''') pxEdit = Px(''' ''') pxSearch = Px('''
  
''') def __init__(self, validator=None, multiplicity=(0,1), default=None, show=True, page='main', group=None, layouts=None, move=0, indexed=False, searchable=False, specificReadPermission=False, specificWritePermission=False, width=5, height=None, maxChars=13, colspan=1, master=None, masterValue=None, focus=False, historized=False, mapping=None, label=None, sdefault=('',''), scolspan=1, swidth=None, sheight=None, precision=None, sep=(',', '.'), tsep=' '): # The precision is the number of decimal digits. This number is used # for rendering the float, but the internal float representation is not # rounded. self.precision = precision # The decimal separator can be a tuple if several are allowed, ie # ('.', ',') if type(sep) not in sutils.sequenceTypes: self.sep = (sep,) else: self.sep = sep # Check that the separator(s) are among allowed decimal separators for sep in self.sep: if sep not in Float.allowedDecimalSeps: raise Exception('Char "%s" is not allowed as decimal ' \ 'separator.' % sep) self.tsep = tsep Field.__init__(self, validator, multiplicity, default, show, page, group, layouts, move, indexed, False, specificReadPermission, specificWritePermission, width, height, maxChars, colspan, master, masterValue, focus, historized, True, mapping, label, sdefault, scolspan, swidth, sheight) self.pythonType = float def getFormattedValue(self, obj, value, showChanges=False): return sutils.formatNumber(value, sep=self.sep[0], precision=self.precision, tsep=self.tsep) def validateValue(self, obj, value): # Replace used separator with the Python separator '.' for sep in self.sep: value = value.replace(sep, '.') value = value.replace(self.tsep, '') try: value = self.pythonType(value) except ValueError: return obj.translate('bad_%s' % self.pythonType.__name__) def getStorableValue(self, value): if not self.isEmptyValue(value): for sep in self.sep: value = value.replace(sep, '.') value = value.replace(self.tsep, '') return self.pythonType(value) # ------------------------------------------------------------------------------