X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=base%2Fdatabase.lisp;h=1c6fa63ee82fc12911175575a755470b3e8854aa;hb=2fbf19dd476db166a45bfb54ad3801b02106ef92;hp=78b6faafa2867d7846eeef96675b06e8e0e4d3e1;hpb=d68d59f99911564ac2af867561fefef107cb14e8;p=clsql.git diff --git a/base/database.lisp b/base/database.lisp index 78b6faa..1c6fa63 100644 --- a/base/database.lisp +++ b/base/database.lisp @@ -32,6 +32,9 @@ (defvar *default-database* nil "Specifies the default database to be used.") +(defun is-database-open (database) + (eql (database-state database) :open)) + (defun find-database (database &key (errorp t) (db-type nil)) "The function FIND-DATABASE, given a string DATABASE, searches amongst the connected databases for one matching the name DATABASE. If @@ -81,6 +84,16 @@ connection. If make-default is true, then *default-database* is set to the new connection, otherwise *default-database is not changed. If pool is t the connection will be taken from the general pool, if pool is a conn-pool object the connection will be taken from this pool." + + (when (stringp connection-spec) + (setq connection-spec (string-to-list-connection-spec connection-spec))) + + (unless (member database-type *loaded-database-types*) + (asdf:operate 'asdf:load-op (ensure-keyword + (concatenate 'string + (symbol-name '#:clsql-) + (symbol-name database-type))))) + (if pool (acquire-from-pool connection-spec database-type pool) (let* ((db-name (database-name-from-spec connection-spec database-type)) @@ -112,6 +125,7 @@ is a conn-pool object the connection will be taken from this pool." (setq result (database-connect connection-spec database-type))) (when result + (setf (slot-value result 'state) :open) (pushnew result *connected-databases*) (when make-default (setq *default-database* result)) result)))) @@ -139,7 +153,7 @@ this pool." (setf *connected-databases* (delete database *connected-databases*)) (when (eq database *default-database*) (setf *default-database* (car *connected-databases*))) - (change-class database 'closed-database) + (setf (slot-value database 'state) :closed) t))))) @@ -162,10 +176,10 @@ error should be signaled if the existing database connection cannot be closed. When non-nil (this is the default value) the connection is closed without error checking. When FORCE is nil, an error is signaled if the database connection has been lost." - ;; TODO: just a placeholder + ;; TODO: Support all backends. Perhaps integrate with pools + ;; Handle error and force keywords (declare (ignore database error force))) - (defun status (&optional full) "The function STATUS prints status information to the standard @@ -202,6 +216,21 @@ of full is NIL." (print-separator total-size)))) (values))) +(defun create-database (connection-spec &key database-type) + (when (stringp connection-spec) + (setq connection-spec (string-to-list-connection-spec connection-spec))) + (database-create connection-spec database-type)) + +(defun probe-database (connection-spec &key database-type) + (when (stringp connection-spec) + (setq connection-spec (string-to-list-connection-spec connection-spec))) + (database-probe connection-spec database-type)) + +(defun destroy-database (connection-spec &key database-type) + (when (stringp connection-spec) + (setq connection-spec (string-to-list-connection-spec connection-spec))) + (database-destroy connection-spec database-type)) + (defmacro with-database ((db-var connection-spec &rest connect-args) &body body) "Evaluate the body in an environment, where `db-var' is bound to the @@ -223,3 +252,4 @@ The connection is automatically closed or released to the pool on exit from the `(progv '(*default-database*) (list ,database) ,@body)) +