expiring the obj has the effect that any further access to the object will auto-refresh it. so if u expire(x) and then say x.a. x will be reloaded first then u get x.a
Utku Altinkaya wrote: > > > On 16 Aralık, 17:46, [EMAIL PROTECTED] wrote: >> the expire() is requesting a reload. >> try moving that after the sending back stuff to user. > > The documents says it does not reload until it is accessed if the > object is expired, I think what does the thing you have mantioned is > the refresh method of session. > http://www.sqlalchemy.org/docs/04/session.html#unitofwork_using_refreshing > >> >> >> Utku Altinkaya wrote: >>> Hi, >>> I am using SQLAlchemy on a web application, I have used a base class >>> for ORM clases which provides soem web related things like validation >>> and loading data from forms etc. When the form is submitted: >>> Here is the current life cycle: >>> object.loadFromForm() >>> if object.Validate(): >>> session.save_or_update(object) >>> else >>> render_form(object) >>> session.expire(object) >>> session.commit() >>> I do not want to lose invalid values, becouse I want to send them to >>> the user again, so while using object as intermediate holder I have to >>> set attributes invalid values... So "Autoflush = False", and if >>> invalid values are existed the object is reloaded from DB before >>> commit step of web request cycle. >>> But while using SQLAlchemy I had the impression that it is not >>> designed to to that, It designers thought objects are direct >>> representation of the data in the database. I can do this ofcouse >>> some kind of holder class copies attributes from data objects etc, but >>> it is cumbersome, and will force me to write longer code. >>> I am expecting someone to tell me the way I am doing is perfectly >>> valid, or another advice >>> regards- Alıntıyı gizle - >> - Alıntıyı göster - > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
