Michael Bayer ha scritto: > > On Jan 28, 2008, at 6:03 AM, Manlio Perillo wrote: > >> Hi. >> >> In this wiki page: >> http://www.sqlite.org/cvstrac/wiki?p=ForeignKeyTriggers >> >> there is a recipe on how to add basic foreign key support to SQLite >> using triggers. >> >> Is it possible to implement this recipe in SQLAlchemy? >> >> Some time ago I have tried to implement it, by adding support for >> triggers in SQLAlchemy (so that they can be automatically >> created/dropped) but I have abandoned the project because the >> internals >> of SQLAlchemy are unstable. > > > we have ticket 903 http://www.sqlalchemy.org/trac/ticket/903 with a > suggested way we'll be accomplishing this, a generic DDL() construct > that associates with table/metadata creates/drops. we just haven't > decided on exact API details but comments are welcome. >
Thanks. I like the idea of custom events. However, instead of having: table.events['after-create'].append(run) IMHO it is better an higher level: table.add_event(phase, event_type, callable, *args, **kwargs) Where phase is "create" or "drop" and event_type is "before" or "after". (http://twistedmatrix.com/trac/browser/trunk/twisted/internet/interfaces.py#L624) Manlio Perillo --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
