;;;; Original code by Pierre R. Mai
;;;; Date Started: Feb 2002
;;;;
-;;;; $Id: sql.cl,v 1.13 2002/04/27 20:58:11 kevin Exp $
+;;;; $Id: sql.cl,v 1.16 2002/05/11 14:31:10 marc.battyani Exp $
;;;;
;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
(defvar *default-database* nil
"Specifies the default database to be used.")
-
-
(defun find-database (database &optional (errorp t))
(etypecase database
(database
(database-type *default-database-type*)
(pool nil))
"Connects to a database of the given database-type, using the type-specific
-connection-spec. if-exists is currently ignored."
- (let* ((db-name (database-name-from-spec connection-spec database-type))
- (old-db (find-database db-name nil))
- (result nil))
- (if pool
- (setq result (acquire-from-pool connection-spec database-type))
+connection-spec. if-exists is currently ignored.
+If pool is t the the connection will be taken from the general pool,
+if pool is a conn-pool object the connection will be taken from this pool.
+"
+ (if pool
+ (acquire-from-pool connection-spec database-type pool)
+ (let* ((db-name (database-name-from-spec connection-spec database-type))
+ (old-db (unless (eq if-exists :new) (find-database db-name nil)))
+ (result nil))
(if old-db
- (case if-exists
- (:new
- (setq result
- (database-connect connection-spec database-type)))
- (:warn-new
- (setq result
- (database-connect connection-spec database-type))
- (warn 'clsql-exists-warning :old-db old-db :new-db result))
- (:error
- (restart-case
+ (case if-exists
+; (:new
+; (setq result
+; (database-connect connection-spec database-type)))
+ (:warn-new
+ (setq result
+ (database-connect connection-spec database-type))
+ (warn 'clsql-exists-warning :old-db old-db :new-db result))
+ (:error
+ (restart-case
(error 'clsql-exists-error :old-db old-db)
(create-new ()
:report "Create a new connection."
(use-old ()
:report "Use the existing connection."
(setq result old-db))))
- (:warn-old
- (setq result old-db)
- (warn 'clsql-exists-warning :old-db old-db :new-db old-db))
- (:old
- (setq result old-db)))
+ (:warn-old
+ (setq result old-db)
+ (warn 'clsql-exists-warning :old-db old-db :new-db old-db))
+ (:old
+ (setq result old-db)))
(setq result
- (database-connect connection-spec database-type))))
- (when result
- (pushnew result *connected-databases*)
- (setq *default-database* result)
- result)))
+ (database-connect connection-spec database-type)))
+ (when result
+ (pushnew result *connected-databases*)
+ (setq *default-database* result)
+ result))))
-(defun disconnect (&key (database *default-database*)
- (pool nil))
+(defun disconnect (&key (database *default-database*))
"Closes the connection to database. Resets *default-database* if that
-database was disconnected and only one other connection exists."
- (if pool
+database was disconnected and only one other connection exists.
+if the database is from a pool it will be released to this pool."
+ (if (conn-pool database)
(release-to-pool database)
(when (database-disconnect database)
(setq *connected-databases* (delete database *connected-databases*))