-;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
-;;;; *************************************************************************
-;;;; FILE IDENTIFICATION
-;;;;
-;;;; Name: mysql-usql.cl
-;;;; Purpose: MySQL interface functions to support UncommonSQL
-;;;; Programmers: Kevin M. Rosenberg and onShore Development Inc
-;;;; Date Started: Mar 2002
-;;;;
-;;;; $Id$
-;;;;
-;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
-;;;; and by onShore Development Inc.
-;;;;
-;;;; CLSQL users are granted the rights to distribute and use this software
-;;;; as governed by the terms of the Lisp Lesser GNU Public License
-;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
-;;;; *************************************************************************
-
-(in-package #:clsql-mysql)
-
-;; Table and attribute introspection
-
-(defmethod database-list-tables ((database mysql-database) &key (owner nil))
- (declare (ignore owner))
- (remove-if #'(lambda (s)
- (and (>= (length s) 10)
- (string= (subseq s 0 10) "_usql_seq_")))
- (mapcar #'car (database-query "SHOW TABLES" database nil))))
-
-;; MySQL 4.1 does not support views
-(defmethod database-list-views ((database mysql-database)
- &key (owner nil))
- (declare (ignore owner))
- nil)
-
-(defmethod database-list-indexes ((database mysql-database)
- &key (owner nil))
- (let ((result '()))
- (dolist (table (database-list-tables database :owner owner) result)
- (mapc #'(lambda (index) (push (nth 2 index) result))
- (database-query
- (format nil "SHOW INDEX FROM ~A" (string-upcase table))
- database nil)))))
-
-(defmethod database-list-attributes ((table string) (database mysql-database)
- &key (owner nil))
- (declare (ignore owner))
- (mapcar #'car
- (database-query
- (format nil "SHOW COLUMNS FROM ~A" table)
- database nil)))
-
-(defmethod database-attribute-type (attribute (table string)
- (database mysql-database)
- &key (owner nil))
- (declare (ignore owner))
- (let ((result
- (mapcar #'cadr
- (database-query
- (format nil
- "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
- database nil))))
- (let* ((str (car result))
- (end-str (position #\( str))
- (substr (subseq str 0 end-str)))
- (if substr
- (intern (string-upcase substr) :keyword) nil))))
-
-;;; Sequence functions
-
-(defun %sequence-name-to-table (sequence-name)
- (concatenate 'string "_usql_seq_" (sql-escape sequence-name)))
-
-(defun %table-name-to-sequence-name (table-name)
- (and (>= (length table-name) 10)
- (string= (subseq table-name 0 10) "_usql_seq_")
- (subseq table-name 10)))
-
-(defmethod database-create-sequence (sequence-name
- (database mysql-database))
- (let ((table-name (%sequence-name-to-table sequence-name)))
- (database-execute-command
- (concatenate 'string "CREATE TABLE " table-name
- " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
- database)
- (database-execute-command
- (concatenate 'string "INSERT INTO " table-name
- " VALUES (-1)")
- database)))
-
-(defmethod database-drop-sequence (sequence-name
- (database mysql-database))
- (database-execute-command
- (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
- database))
-
-(defmethod database-list-sequences ((database mysql-database)
- &key (owner nil))
- (declare (ignore owner))
- (mapcar #'(lambda (s) (%table-name-to-sequence-name (car s)))
- (database-query "SHOW TABLES LIKE '%usql_seq%'"
- database nil)))
-
-(defmethod database-set-sequence-position (sequence-name
- (position integer)
- (database mysql-database))
- (database-execute-command
- (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
- position)
- database)
- (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
-
-(defmethod database-sequence-next (sequence-name (database mysql-database))
- (database-execute-command
- (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
- " SET id=LAST_INSERT_ID(id+1)")
- database)
- (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
-
-(defmethod database-sequence-last (sequence-name (database mysql-database))
- (declare (ignore sequence-name)))
-
-;; Misc USQL functions
-
-#|
-#+ignore
-(defmethod database-output-sql ((expr clsql-sys::sql-typecast-exp)
- (database mysql-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 #\: sql-sys::*sql-stream*)
- (write-char #\: sql-sys::*sql-stream*)
- (write-string (symbol-name clsql-sys::modifier)
- clsql-sys::*sql-stream*)))))
-
-#+ignore
-(defmethod database-output-sql-as-type ((type (eql 'integer)) val
- (database mysql-database))
- ;; typecast it so it uses the indexes
- (when val
- (make-instance 'clsql-sys::sql-typecast-exp
- :modifier 'int8
- :components val)))
-|#