-Original Message-
From: sqlalchemy@googlegroups.com
[mailto:sqlalch...@googlegroups.com] On Behalf Of darkblueB
Sent: 19 August 2009 02:58
To: sqlalchemy
Subject: [sqlalchemy] Re: new questions
Hi Simon
thanks for the reply.. Your second part is straightforward..
The first
Hello,
I have several objects from a relation that I'd like to delete. To me,
this would be a natural syntax:
session.delete(office.users)
to delete all of the user objects. I get this error when doing this:
raise exc.UnmappedInstanceError(instance)
The delete method of query supports bulk deletes.
In your case it might be something like
session.query(Users).filter(User.officeid==office.id).delete()
Any query can be used; there are probably more elegant ways to take
advantage of the relation 'users' also.
Make sure you read the
OOps. Doesn't matter. It's all my fault.
I used Unittest and I delete management_company on tearDown. (duaring
management_company_id set nullable=False)
I set 'cascade=all' and everything goes Correct. Sorry.
On 8月20日, 午前11:41, Alisue hello.goodbye.by.beat...@gmail.com wrote:
Article has two
Article has two company. 'management_company' and
'intermediate_company'
So I wrote code like below.
code
class Company(Base):
__tablename__ = 'companies'
id = Column(Integer, primary_key=True)
name = Column(String(255))
class Article(Base):
__tablename__ = 'articles'
id =
