Randy Syring wrote: > > I am trying to write a datagrid library for sqlalchemy which will > allow easy generation of tables from SA objects. I would like the > datagrid to be able to accept a table column, declarative attribute, > or elixir entity attribute interchangeably. Since I am building the > SQL with queries, this has worked well so far, I just use the objects > and SA takes care of the rest. > > However, I have recently run into a problem that requires the datagrid > to be a little smarter. If someone wants to filter on a date, but > leaves the value as None, then I need to convert the empty string to a > None. However, I only want to do that for Date/Time SA columns. > > So, how can I extract the SA column object from a declarative > attribute or elixir entity?
I'm not sure of the context here. are you generating code or just executing SQL ? if the latter wouldn't you be using TypeEngine subclasses to handle coersion of type values ? > > Thanks. > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to [email protected] 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 -~----------~----~----~----~------~----~------~--~---
