ive made an adjustment in r5288 such that you should be able to override load_dialect_impl() using your custom class as is.
On Nov 13, 2008, at 2:44 PM, Mike Orr wrote: > > I have a 113656-byte pickle I'm trying to put into a blob column in a > way that will work for both SQLite and MySQL. SQLite has no problem > with it, but in MySQL I have to use the MSMediumBlob type because it > exceeds 65536 bytes. But I'd like the same table to work with both > engines. Is this possible? > > I'm using a CompressedPickle class that looks like this: > > class CompressedPickle(sa.types.TypeDecorator): > impl = sa.types.PickleType > > def process_bind_param(self, value, dialect): > value = pickle.dumps(value, -1) > value = zlib.compress(value, 9) > return value > > def process_result_value(self, value, dialect): > value = zlib.decompress(value) > value = pickle.loads(value) > return value > > def copy(self): > return CompressedPickle(self.impl.length) > > > > > -- > Mike Orr <[EMAIL PROTECTED]> > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
