Ryszard Szopa wrote:
Is there some way to make connection spec take in variables instead of just literal strings and whatnot?
Ideally giving a *connection-spec* special would be good, or even constant +db-user+, +db-pass+ etc.
How about
(defparameter *db* "submarine-test") (defparameter *db-user* "richard") (defparameter *db-password* "dupa55") (defparameter *db-host* "localhost")
(defdao foobar () ((baz :type string :initarg :baz :accessor baz-of)) (:connection-spec *db* *db-user* *db-password* *db-host*)) ?
(I am sorry, but I can't test if it works right now.)
In my code I usually define a macro `dao' which expands to a dao definition w/ the right connection spec. In principle, every dao class could connect to a different db (though foreign keys might cause some trouble if you try it), and a dao w/o a connection spec doesn't get any db counterpart -- it is just for inheritance, etc. However, using multiple db-s doesn't look like the most useful feature in the world, so I may consider using a *db-spec* variable as you suggest.
If I get some free time tomorrow I will take a look if there can be an easy workaround for your problem.
Hi, yeah, I did try the specials like that, but the macro doesn't expand, complaining about the wrong type. It seems to really want literals. I think it should be a small change to make it work, unfortunately, i don't know MOP at all, so I couldn't say.
It's an admirable project though. It looks a lot cleaner. Have you thought at all about supporting PostgreSQL's table multiple-inheritance? I can't imagine that it would be amazingly difficult as I should think that CLOS could map fairly cleanly onto it.
I have pretty much switched back to using plain S-SQL for now.
Thanks bill