yup that's wrong, ill add a ticket for that On Nov 19, 2011, at 12:57 PM, Michael Naber wrote:
> Thanks, Mike. The docs look like they are a little out of date on this. For > delete-orphan, they say that "Note that this option prevents a pending item > of the child’s class from being persisted without a parent present." > http://www.sqlalchemy.org/docs/orm/relationships.html#relationships-api > > > > On Tue, Nov 1, 2011 at 11:00 AM, Michael Bayer <mike...@zzzcomputing.com> > wrote: > > On Nov 1, 2011, at 6:48 AM, Michael Naber wrote: > > > Quick question: Why am I allowed to persist an address with no person_id? > > Shouldn't the delete-orphan prohibit this? > > This was the behavior up until 0.7, when the decision was reversed - > delete-orphan now considers an "orphan" to be only an object that *had* a > parent, now does not. To prevent the insertion of a row that has no parent > to start with you'd use a NOT NULL constraint on the foreign key. > > The improvement here allows delete-orphan cascade to be used on hierarchical > structures where the "root" row has no parent. No functionality is lost for > systems where parents are required as that's what constraints are for. > > Notes: > http://www.sqlalchemy.org/trac/wiki/07Migration#Flushingoforphansthathavenoparentisallowed > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalchemy@googlegroups.com. > To unsubscribe from this group, send email to > sqlalchemy+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sqlalchemy?hl=en. > > > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalchemy@googlegroups.com. > To unsubscribe from this group, send email to > sqlalchemy+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
