本文整理汇总了Python中trytond.transaction.Transaction.lock方法的典型用法代码示例。如果您正苦于以下问题：Python Transaction.lock方法的具体用法？Python Transaction.lock怎么用？Python Transaction.lock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类trytond.transaction.Transaction的用法示例。
在下文中一共展示了Transaction.lock方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: get_deposit_balance
# 需要导入模块: from trytond.transaction import Transaction [as 别名]
# 或者: from trytond.transaction.Transaction import lock [as 别名]
def get_deposit_balance(self, deposit_account):
'Return the deposit account balance (debit - credit) for the party'
pool = Pool()
MoveLine = pool.get('account.move.line')
cursor = Transaction().cursor
line = MoveLine.__table__()
assert deposit_account.kind == 'deposit'
cursor.lock(MoveLine._table)
cursor.execute(*line.select(
Sum(Coalesce(line.debit, 0) - Coalesce(line.credit, 0)),
where=(line.account == deposit_account.id)
& (line.party == self.id)
& (line.reconciliation == Null)))
amount, = cursor.fetchone()
if amount and not isinstance(amount, Decimal):
currency = deposit_account.company.currency
amount = currency.round(Decimal(str(amount)))
return amount or Decimal(0)示例2: create
# 需要导入模块: from trytond.transaction import Transaction [as 别名]
# 或者: from trytond.transaction.Transaction import lock [as 别名]
def create(cls, vlist):
cursor = Transaction().cursor
cursor.lock(cls._table)
vlist = [v.copy() for v in vlist]
for values in vlist:
if not values.get('code'):
start = time.time()
while True:
code = cls.generate_code()
same = cls.search([
('code', '=', code),
('disabled', '=', False),
])
if not same:
break
now = time.time()
if now - start > timeout:
cls.raise_user_error('timeout')
values['code'] = code
return super(Badge, cls).create(vlist)