> On Dec 12, 2014, at 4:12 PM, dewey <de...@pathoz.com> wrote: > > after re-reading the docs, it seems I misunderstood the purpose of: > > __mapper_args__ = {'column_prefix': 'ste_'} > > that option is adding the prefix onto the Class att names, NOT onto the > actual DB column names in the table.... > > I'm looking for a way to add a global prefix onto my DB column names. > > All suggestions appreciated.
assuming this is a fixed prefix that is just set up once you would either make a function: from sqlalchemy import Column as _Column def Column(name, **kw): newname = “myprefix_%s” % name return _Column(newname, key=name, **kw) or if that is too simple, use the before_parent_attach event, which you’d have to stick on Column: @event.listens_for(“before_parent_attach”, Column) def attach(target, parent): target.name = “myprefix_%s” % target.name # target.key is OK here -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.