* MA 02111-1307, USA.
*
* For details, see the HELM World-Wide-Web page,
- * http://cs.unibo.it/helm/.
+ * http://www.cs.unibo.it/helm/.
*)
(*
* le eccezioni lanciate dalle funzioni init e pgc sono
* definite nel modulo Mathql
*)
-open Mathql;;
+open MathQL;;
+
+exception DBInvalidURI of string
+exception DBConnectionFailed of string
+exception DBInvalidConnection of string
+
+
(*
* paramentri della connessione
* TODO: bisogna scegliere se questi parametri vengono
* passati come argomento
*)
-let connection_param = "dbname=helm";;
-(*let connection_param = "host=dotto.cs.unibo.it dbname=helm user=helm";;*)
+(*let connection_param = "dbname=helm";;*)
+let connection_param = "host=mowgli.cs.unibo.it dbname=helm user=helm";;
(*
* connessione al db
*)
let pgc () =
match !conn with
- None -> raise (MQInvalidConnection connection_param)
- | Some c -> c
+ None -> raise (DBInvalidConnection connection_param)
+ | Some c -> c
;;
(*
let init () =
try (
conn := Some (new Postgres.connection connection_param);
+ prerr_endline "connected."
) with
- _ -> raise (MQConnectionFailed ("init: " ^ connection_param))
+ _ -> raise (DBConnectionFailed ("init: " ^ connection_param))
;;
(*