The difference is between a Python class and an instance of that class. Class.attribute and object.attribute are two totally different things. One represents SQL, the other your data.
On Apr 21, 2011, at 4:24 PM, RVince wrote: > Are you sure? Because I can already access those fields from he mako > page from that query -- shouldn't I be able to access them in the > Puython controller of that page? -RVince > > On Apr 21, 4:07 pm, Michael Bayer <mike...@zzzcomputing.com> wrote: >> On Apr 21, 2011, at 12:48 PM, RVince wrote: >> >>> Similarly, if I am doing an order_by: >> >>> query = >>> Session.query(SmartdataEligibilityRecord).order_by(SmartdataEligibilityReco >>> rd.member.middle_initial.desc()).all() >> >> place the Member class in the order_by() clause after constructing a join() >> to SmartRecord.member. >> >> Examples of joins are in the ORM tutorial at: >> >> http://www.sqlalchemy.org/docs/orm/tutorial.html#querying-with-joins >> >> >> >> >> >>> It returns: >> >>> Error - <type 'exceptions.AttributeError'>: Neither >>> 'InstrumentedAttribute' object nor 'Comparator' object has an >>> attribute 'middle_initial' >> >>> In this kind of circumstance of joined tables, in the python code >>> itself (the Pylons controller, actually) how would I refer to the >>> member table's middle_initial field where the members table is joined >>> in with a left outer join via SQLAlchemy? Thanks again >> >>> -RVince >> >>> -- >>> 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 >>> athttp://groups.google.com/group/sqlalchemy?hl=en.- Hide quoted text - >> >> - Show quoted text - > > -- > 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.
