-(defmethod database-list-objects-of-type ((database postgresql-database)
- type owner)
- (let ((owner-clause
- (cond ((stringp owner)
- (format nil " AND (relowner=(SELECT usesysid FROM pg_user WHERE (usename='~A')))" owner))
- ((null owner)
- (format nil " AND (NOT (relowner=1))"))
- (t ""))))
- (mapcar #'car
- (database-query
- (format nil
- "SELECT relname FROM pg_class WHERE (relkind = '~A')~A"
- type
- owner-clause)
- database nil))))
-
-(defmethod database-list-tables ((database postgresql-database)
- &key (owner nil))
- (database-list-objects-of-type database "r" owner))
-
-(defmethod database-list-views ((database postgresql-database)
- &key (owner nil))
- (database-list-objects-of-type database "v" owner))
-
-(defmethod database-list-indexes ((database postgresql-database)
- &key (owner nil))
- (database-list-objects-of-type database "i" owner))
-
-(defmethod database-list-attributes ((table string)
- (database postgresql-database)
- &key (owner nil))
- (let* ((owner-clause
- (cond ((stringp owner)
- (format nil " AND (relowner=(SELECT usesysid FROM pg_user WHERE usename='~A'))" owner))
- ((null owner) " AND (not (relowner=1))")
- (t "")))
- (result
- (mapcar #'car
- (database-query
- (format nil "SELECT attname FROM pg_class,pg_attribute WHERE pg_class.oid=attrelid AND relname='~A'~A"
- (string-downcase table)
- owner-clause)
- database nil))))
- (if result
- (reverse
- (remove-if #'(lambda (it) (member it '("cmin"
- "cmax"
- "xmax"
- "xmin"
- "oid"
- "ctid"
- ;; kmr -- added tableoid
- "tableoid") :test #'equal))
- result)))))
-
-(defmethod database-attribute-type (attribute (table string)
- (database postgresql-database)
- &key (owner nil))
- (let* ((owner-clause
- (cond ((stringp owner)
- (format nil " AND (relowner=(SELECT usesysid FROM pg_user WHERE usename='~A'))" owner))
- ((null owner) " AND (not (relowner=1))")
- (t "")))
- (result
- (mapcar #'car
- (database-query
- (format nil "SELECT pg_type.typname FROM pg_type,pg_class,pg_attribute WHERE pg_class.oid=pg_attribute.attrelid AND pg_class.relname='~A' AND pg_attribute.attname='~A' AND pg_attribute.atttypid=pg_type.oid~A"
- (string-downcase table)
- (string-downcase attribute)
- owner-clause)
- database nil))))
- (when result
- (intern (string-upcase (car result)) :keyword))))
-
-(defmethod database-create-sequence (sequence-name
- (database postgresql-database))
- (database-execute-command
- (concatenate 'string "CREATE SEQUENCE " (sql-escape sequence-name))
- database))
-
-(defmethod database-drop-sequence (sequence-name
- (database postgresql-database))
- (database-execute-command
- (concatenate 'string "DROP SEQUENCE " (sql-escape sequence-name)) database))
-
-(defmethod database-list-sequences ((database postgresql-database)
- &key (owner nil))
- (database-list-objects-of-type database "S" owner))
-
-(defmethod database-set-sequence-position (name (position integer)
- (database postgresql-database))
- (values
- (parse-integer
- (caar
- (database-query
- (format nil "SELECT SETVAL ('~A', ~A)" name position)
- database nil)))))
-
-(defmethod database-sequence-next (sequence-name
- (database postgresql-database))
- (values
- (parse-integer
- (caar
- (database-query
- (concatenate 'string "SELECT NEXTVAL ('" (sql-escape sequence-name) "')")
- database nil)))))
-
-(defmethod database-sequence-last (sequence-name (database postgresql-database))
- (values
- (parse-integer
- (caar
- (database-query
- (concatenate 'string "SELECT LAST_VALUE ('" sequence-name "')")
- database nil)))))
-
-
-;; Functions depending upon high-level CommonSQL classes/functions
-#|
-(defmethod database-output-sql ((expr clsql-sys::sql-typecast-exp)
- (database postgresql-database))
- (with-slots (clsql-sys::modifier clsql-sys::components)
- expr
- (if clsql-sys::modifier
- (progn
- (clsql-sys::output-sql clsql-sys::components database)
- (write-char #\: clsql-sys::*sql-stream*)
- (write-char #\: clsql-sys::*sql-stream*)
- (write-string (symbol-name clsql-sys::modifier)
- clsql-sys::*sql-stream*)))))
-
-(defmethod database-output-sql-as-type ((type (eql 'integer)) val
- (database postgresql-database))
- (when val ;; typecast it so it uses the indexes
- (make-instance 'clsql-sys::sql-typecast-exp
- :modifier 'int8
- :components val)))
-|#
-
-(when (clsql-base-sys:database-type-library-loaded :postgresql)
- (clsql-base-sys:initialize-database-type :database-type :postgresql))
+
+
+(defmethod database-create (connection-spec (type (eql :postgresql)))
+ (destructuring-bind (host name user password) connection-spec
+ (let ((database (database-connect (list host "postgres" user password)
+ type)))
+ (setf (slot-value database 'clsql-sys::state) :open)
+ (unwind-protect
+ (database-execute-command (format nil "create database ~A" name) database)
+ (database-disconnect database)))))
+
+(defmethod database-destroy (connection-spec (type (eql :postgresql)))
+ (destructuring-bind (host name user password) connection-spec
+ (let ((database (database-connect (list host "postgres" user password)
+ type)))
+ (setf (slot-value database 'clsql-sys::state) :open)
+ (unwind-protect
+ (database-execute-command (format nil "drop database ~A" name) database)
+ (database-disconnect database)))))
+
+
+(defmethod database-probe (connection-spec (type (eql :postgresql)))
+ (when (find (second connection-spec) (database-list connection-spec type)
+ :test #'string-equal)
+ t))
+
+
+(defun %pg-database-connection (connection-spec)
+ (check-connection-spec connection-spec :postgresql
+ (host db user password &optional port options tty))
+ (macrolet ((coerce-string (var)
+ `(unless (typep ,var 'simple-base-string)
+ (setf ,var (coerce ,var 'simple-base-string)))))
+ (destructuring-bind (host db user password &optional port options tty)
+ connection-spec
+ (coerce-string db)
+ (coerce-string user)
+ (let ((connection (PQsetdbLogin host port options tty db user password)))
+ (declare (type pgsql::pgsql-conn-ptr connection))
+ (unless (eq (PQstatus connection)
+ pgsql-conn-status-type#connection-ok)
+ ;; Connect failed
+ (error 'sql-connection-error
+ :database-type :postgresql
+ :connection-spec connection-spec
+ :error-id (PQstatus connection)
+ :message (PQerrorMessage connection)))
+ connection))))
+
+(defmethod database-reconnect ((database postgresql-database))
+ (let ((lock (database-lock database)))
+ (with-process-lock (lock "Reconnecting")
+ (with-slots (connection-spec conn-ptr)
+ database
+ (setf conn-ptr (%pg-database-connection connection-spec))
+ database))))
+
+;;; Database capabilities
+
+(when (clsql-sys:database-type-library-loaded :postgresql)
+ (clsql-sys:initialize-database-type :database-type :postgresql))