本文整理汇总了Python中sqlalchemy.orm.collections.collection.removes方法的典型用法代码示例。如果您正苦于以下问题：Python collection.removes方法的具体用法？Python collection.removes怎么用？Python collection.removes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sqlalchemy.orm.collections.collection的用法示例。
在下文中一共展示了collection.removes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: removes
# 需要导入模块: from sqlalchemy.orm.collections import collection [as 别名]
# 或者: from sqlalchemy.orm.collections.collection import removes [as 别名]
def removes(arg):
"""Mark the method as removing an entity in the collection.
Adds "remove from collection" handling to the method. The decorator
argument indicates which method argument holds the SQLAlchemy-relevant
value to be removed. Arguments can be specified positionally (i.e.
integer) or by name::
@collection.removes(1)
def zap(self, item): ...
For methods where the value to remove is not known at call-time, use
collection.removes_return.
"""
def decorator(fn):
fn._sa_instrument_before = ('fire_remove_event', arg)
return fn
return decorator 示例2: removes
# 需要导入模块: from sqlalchemy.orm.collections import collection [as 别名]
# 或者: from sqlalchemy.orm.collections.collection import removes [as 别名]
def removes(arg):
"""Mark the method as removing an entity in the collection.
Adds "remove from collection" handling to the method. The decorator
argument indicates which method argument holds the SQLAlchemy-relevant
value to be removed. Arguments can be specified positionally (i.e.
integer) or by name::
@collection.removes(1)
def zap(self, item): ...
For methods where the value to remove is not known at call-time, use
collection.removes_return.
"""
def decorator(fn):
fn._sa_instrument_before = ("fire_remove_event", arg)
return fn
return decorator