hmm strange, i tried this out with sqlalchemy version 0.4.1 but it does not seem to work...
>>> s.name u'HALN01100601' >>> isinstance(s.name, sqlalchemy.orm.PropertyLoader) False >>> s.targets [<tcd_sample_database.model.samples.Target object at 0xb608dcac>] >>> isinstance(s.targets, sqlalchemy.orm.PropertyLoader) False both attributes were loaded by sqlalchemy. also, >>> getattr(s.materials, "direction") Traceback (most recent call last): File "<console>", line 1, in ? AttributeError: 'InstrumentedList' object has no attribute 'direction' is this implemented in sqlalchemy 5? brendan On Dec 3, 2007 9:30 PM, Michael Bayer <[EMAIL PROTECTED]> wrote: > > id look at prop = MyClass.someattribute.property, use isinstance(prop, > PropertyLoader) to determine a relation and not a scalar, combined > with getattr(prop, "direction") == sqlalchemy.orm.sync.MANYTOMANY, > ONETOMANY, etc. to get the type of join. > > > On Dec 3, 2007, at 3:43 PM, Brendan Arnold wrote: > > > > > hi there, > > > > i'd like a way to determine if an attribute of an orm object is: > > > > a:) a sqlalchemy generated list of objects (i.e. many-to-many) > > b:) a single sqlalchemy joined object (i.e.one-to-many) > > c:) a 'scalar' loaded from the database (i.e. a string, float, > > integer) > > > > at present i'm copying the text generated by > > 'type(orm_obj.joined_list)' to determine a: and a 'type(float, int > > etc.)' for c:, whats left is b. > > > > this seems shakey, is there a better way? are there some 'types' > > defined in sqlalchemy? > > > > brendan > > > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
