Files
tryton/trytond/backend/fields.py
T
Cédric Krier 601f86fa94 Fix DateTime microsecond replacement
replace method return a new datetime
(transplanted from 9fa480f96eba384f411b9369347d5913d92bbd15)
2010-07-04 22:56:23 +02:00

185 lines
4.0 KiB
Python

#This file is part of Tryton. The COPYRIGHT file at the top level of
#this repository contains the full copyright notices and license terms.
import datetime
from decimal import Decimal
try:
import hashlib
except ImportError:
hashlib = None
import sha
class Field(object):
@staticmethod
def sql_format(value):
if value is None or value == False:
return None
elif isinstance(value, str):
return unicode(value, 'utf-8')
elif isinstance(value, unicode):
return value
return unicode(value)
@staticmethod
def sql_type(field):
raise NotImplementedError
class Boolean(Field):
@staticmethod
def sql_format(value):
return value and 'True' or 'False'
class Integer(Field):
@staticmethod
def sql_format(value):
return int(value or 0)
class BigInteger(Integer):
pass
class Char(Field):
pass
class Sha(Field):
@staticmethod
def sql_format(value):
if isinstance(value, basestring):
if isinstance(value, unicode):
value = value.encode('utf-8')
if hashlib:
value = hashlib.sha1(value).hexdigest()
else:
value = sha.new(value).hexdigest()
return Field.sql_format(value)
class Text(Field):
pass
class Float(Field):
@staticmethod
def sql_format(value):
return float(value or 0.0)
class Numeric(Float):
@staticmethod
def sql_format(value):
if not value:
value = Decimal('0.0')
if isinstance(value, (int, long)):
value = Decimal(str(value))
if isinstance(value, float) and hasattr(value, 'decimal'):
value = value.decimal
assert isinstance(value, Decimal)
return value
class Date(Field):
@staticmethod
def sql_format(value):
if not value:
return None
if isinstance(value, basestring):
year, month, day = map(int, value.split("-", 2))
return datetime.date(year, month, day)
assert(isinstance(value, datetime.date))
# Allow datetime with min time for XML-RPC
# datetime must be tested separately because datetime is a
# subclass of date
assert(not isinstance(value, datetime.datetime)
or value.time() == datetime.time())
return value
class DateTime(Field):
@staticmethod
def sql_format(value):
if not value:
return None
if isinstance(value, basestring):
datepart, timepart = value.split(" ")
year, month, day = map(int, datepart.split("-", 2))
hours, minutes, seconds = map(int, timepart.split(":"))
return datetime.datetime(year, month, day, hours, minutes, seconds)
assert(isinstance(value, datetime.datetime))
return value.replace(microsecond=0)
class Timestamp(Field):
@staticmethod
def sql_format(value):
if not value:
return None
if isinstance(value, basestring):
datepart, timepart = value.split(" ")
year, month, day = map(int, datepart.split("-", 2))
timepart_full = timepart.split(".", 1)
hours, minutes, seconds = map(int, timepart_full[0].split(":"))
if len(timepart_full) == 2:
microseconds = int(timepart_full[1])
else:
microseconds = 0
return datetime.datetime(year, month, day, hours, minutes, seconds,
microseconds)
assert(isinstance(value, datetime.datetime))
return value
class Time(Field):
pass
class Binary(Field):
@staticmethod
def sql_format(value):
return value or None
class Selection(Char):
pass
class Reference(Field):
pass
class Many2One(Field):
@staticmethod
def sql_format(value):
return value and int(value) or None
class One2Many(Field):
pass
class Many2Many(Field):
pass
class Function(Field):
pass
class Property(Function):
pass