-;; Functions depending upon high-level CommonSQL classes/functions
-#|
-(defmethod database-output-sql ((expr clsql-sys::sql-typecast-exp)
- (database postgresql-socket-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-socket-database))
- (when val ;; typecast it so it uses the indexes
- (make-instance 'clsql-sys::sql-typecast-exp
- :modifier 'int8
- :components val)))
-|#
+(defmethod database-create (connection-spec (type (eql :postgresql-socket)))
+ (destructuring-bind (host name user password) connection-spec
+ (let ((database (database-connect (list host "template1" user password)
+ type)))
+ (unwind-protect
+ (execute-command (format nil "create database ~A" name))
+ (database-disconnect database)))))
+
+(defmethod database-destroy (connection-spec (type (eql :postgresql-socket)))
+ (destructuring-bind (host name user password) connection-spec
+ (let ((database (database-connect (list host "template1" user password)
+ type)))
+ (unwind-protect
+ (execute-command (format nil "drop database ~A" name))
+ (database-disconnect database)))))
+
+(defmethod database-probe (connection-spec (type (eql :postgresql-socket)))
+ (destructuring-bind (host name user password) connection-spec
+ (let ((database (database-connect (list host "template1" user password)
+ type)))
+ (unwind-protect
+ (when
+ (find name (database-query "select datname from pg_database"
+ database :auto)
+ :key #'car :test #'string-equal)
+ t)
+ (database-disconnect database)))))
+
+(defmethod database-describe-table ((database postgresql-socket-database)
+ table)
+ (database-query
+ (format nil "select a.attname, t.typname
+ from pg_class c, pg_attribute a, pg_type t
+ where c.relname = '~a'
+ and a.attnum > 0
+ and a.attrelid = c.oid
+ and a.atttypid = t.oid"
+ (sql-escape (string-downcase table)))
+ database :auto))