I am planning on using sqlalchemy to build the api for a database I am developing, and I was wondering if there is any type of column verification that occurs before database commit.
I.E.: a string column with length 40 would throw a verification exception if a value longer that 40 characters was placed into it and saved. Additionally has anyone thought of implementing some sort of verification support for objects that are mapped which would allow the object to perform pre database action logic? The intent being that the instance would check to see that the object meets additional business logic requirements before it is inserted or updated. I.E.: a User business object would verify that the userid was part of the [a-z] [A-Z]and [0-9] character classes, and if not an exception would be raised to prevent the database action. My sincerest apologies If this functionality already exists for sqlalchemy. If the functionality exists please point me in the right direction. If not I would be interested in some help developing the functionality for my uses, and then returning the code to the sqlalchemy repository if the community thinks that the features are needed/useful. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
