r2914: rename .cl files

[clsql.git] / db-mysql / mysql-usql.lisp

diff --git a/db-mysql/mysql-usql.lisp b/db-mysql/mysql-usql.lisp
new file mode 100644 (file)
index 0000000..dc3ea83
--- /dev/null
+++ b/db-mysql/mysql-usql.lisp
@@ -0,0 +1,105 @@
+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-\r
+;;;; *************************************************************************\r
+;;;; FILE IDENTIFICATION\r
+;;;;\r
+;;;; Name:          mysql-usql.cl\r
+;;;; Purpose:       MySQL interface functions to support UncommonSQL\r
+;;;; Programmers:   Kevin M. Rosenberg and onShore Development Inc\r
+;;;; Date Started:  Mar 2002\r
+;;;;\r
+;;;; $Id: mysql-usql.lisp,v 1.1 2002/09/30 10:19:23 kevin Exp $\r
+;;;;\r
+;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg\r
+;;;; and by onShore Development Inc.\r
+;;;;\r
+;;;; CLSQL users are granted the rights to distribute and use this software\r
+;;;; as governed by the terms of the Lisp Lesser GNU Public License\r
+;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.\r
+;;;; *************************************************************************\r
+\r
+(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))\r
+(in-package :clsql-mysql)\r
+\r
+;; Table and attribute introspection\r
+\r
+(defmethod database-list-tables ((database mysql-database)\r
+                                &key (system-tables nil))\r
+  (declare (ignore system-tables))\r
+  (mapcar #'car (database-query "show tables" database :auto)))\r
+    \r
+\r
+(defmethod database-list-attributes ((table string) (database mysql-database))\r
+  (mapcar #'car\r
+         (database-query\r
+          (format nil "SHOW COLUMNS FROM ~A" table)\r
+          database nil)))\r
+\r
+(defmethod database-attribute-type (attribute (table string)\r
+                                   (database mysql-database))\r
+  (let ((result\r
+         (mapcar #'cadr\r
+                 (database-query\r
+                  (format nil\r
+                          "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)\r
+                  database nil))))\r
+    (let* ((str (car result))\r
+          (end-str (position #\( str))\r
+          (substr (subseq str 0 end-str)))\r
+      (if substr\r
+      (intern (string-upcase substr) :keyword) nil))))\r
+\r
+;;; Sequence functions\r
+\r
+(defun %sequence-name-to-table (sequence-name)\r
+  (concatenate 'string "_usql_seq_" (sql-escape sequence-name)))\r
+\r
+(defmethod database-create-sequence (sequence-name\r
+                                    (database mysql-database))\r
+  (let ((table-name (%sequence-name-to-table sequence-name)))\r
+    (database-execute-command\r
+     (concatenate 'string "CREATE TABLE " table-name\r
+                 " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")\r
+     database)\r
+    (database-execute-command \r
+     (concatenate 'string "INSERT INTO " table-name\r
+                 " VALUES (0)")\r
+     database)))\r
+\r
+(defmethod database-drop-sequence (sequence-name\r
+                                  (database mysql-database))\r
+  (database-execute-command\r
+   (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name)) \r
+   database))\r
+\r
+(defmethod database-sequence-next (sequence-name (database mysql-database))\r
+  (database-execute-command \r
+   (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)\r
+               " SET id=LAST_INSERT_ID(id+1)")\r
+   database)\r
+  (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))\r
+\r
+;; Misc USQL functions\r
+\r
+#|\r
+#+ignore\r
+(defmethod database-output-sql ((expr clsql-sys::sql-typecast-exp) \r
+                               (database mysql-database))\r
+  (with-slots (clsql-sys::modifier clsql-sys::components)\r
+    expr\r
+    (if clsql-sys::modifier\r
+        (progn\r
+          (clsql-sys::output-sql clsql-sys::components database)\r
+          (write-char #\: sql-sys::*sql-stream*)\r
+          (write-char #\: sql-sys::*sql-stream*)\r
+          (write-string (symbol-name clsql-sys::modifier) \r
+                       clsql-sys::*sql-stream*)))))\r
+\r
+#+ignore\r
+(defmethod database-output-sql-as-type ((type (eql 'integer)) val\r
+                                       (database mysql-database))\r
+  ;; typecast it so it uses the indexes\r
+  (when val\r
+    (make-instance 'clsql-sys::sql-typecast-exp\r
+                   :modifier 'int8\r
+                   :components val)))\r
+|#\r