1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
5 ;;;; Name: aodbc-sql.cl
6 ;;;; Purpose: Low-level interface for CLSQL AODBC backend
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Feb 2002
10 ;;;; $Id: aodbc-sql.lisp,v 1.1 2002/09/30 10:19:23 kevin Exp $
12 ;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
14 ;;;; CLSQL users are granted the rights to distribute and use this software
15 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
16 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
17 ;;;; *************************************************************************
19 (declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
20 (in-package :clsql-aodbc)
23 ;; interface foreign library loading routines
24 (defmethod database-type-library-loaded ((database-type (eql :aodbc)))
25 "T if foreign library was able to be loaded successfully. "
26 (when (find-package :dbi) ;; finds Allegro's DBI (AODBC) package
29 (defmethod clsql-base-sys:database-type-load-foreign ((databae-type (eql :aodbc)))
32 (when (find-package :dbi)
33 (clsql-base-sys:database-type-load-foreign :aodbc))
35 (defmethod database-initialize-database-type ((database-type (eql :aodbc)))
41 (defclass aodbc-database (database)
42 ((aodbc-conn :accessor database-aodbc-conn :initarg :aodbc-conn)))
44 (defmethod database-name-from-spec (connection-spec
45 (database-type (eql :aodbc)))
46 (check-connection-spec connection-spec database-type (dsn user password))
47 (destructuring-bind (dsn user password) connection-spec
48 (declare (ignore password))
49 (concatenate 'string dsn "/" user)))
51 (defmethod database-connect (connection-spec (database-type (eql :aodbc)))
52 (check-connection-spec connection-spec database-type (dsn user password))
54 (destructuring-bind (dsn user password) connection-spec
56 (make-instance 'aodbc-database
57 :name (database-name-from-spec connection-spec :aodbc)
59 (dbi:connect :user user
61 :data-source-name dsn))
62 (error () ;; Init or Connect failed
63 (error 'clsql-connect-error
64 :database-type database-type
65 :connection-spec connection-spec
67 :error "Connection failed")))))
69 (defmethod database-disconnect ((database aodbc-database))
71 (dbi:disconnect (database-aodbc-conn database))
72 (setf (database-aodbc-conn database) nil)
75 (defmethod database-query (query-expression (database aodbc-database) types)
78 (dbi:sql query-expression :db (database-aodbc-conn database)
81 (error 'clsql-sql-error
83 :expression query-expression
85 :error "Query failed"))))
87 (defmethod database-execute-command (sql-expression
88 (database aodbc-database))
91 (dbi:sql sql-expression :db (database-aodbc-conn database))
93 (error 'clsql-sql-error
95 :expression sql-expression
97 :error "Execute command failed"))))
99 (defstruct aodbc-result-set
101 (types nil :type cons)
102 (full-set nil :type boolean))
104 (defmethod database-query-result-set (query-expression (database aodbc-database)
108 (multiple-value-bind (query column-names)
109 (dbi:sql query-expression
110 :db (database-aodbc-conn database)
117 (make-aodbc-result-set :query query :full-set full-set
119 (length column-names)
120 nil ;; not able to return number of rows with aodbc
123 (error 'clsql-sql-error
125 :expression query-expression
127 :error "Query result set failed"))))
129 (defmethod database-dump-result-set (result-set (database aodbc-database))
131 (dbi:close-query (aodbc-result-set-query result-set))
134 (defmethod database-store-next-row (result-set
135 (database aodbc-database)
138 (let ((row (dbi:fetch-row (aodbc-result-set-query result-set) nil 'eof)))
142 (loop for elem in row
145 (setf (car rest) elem))
149 (when (clsql-base-sys:database-type-library-loaded :aodbc)
150 (clsql-base-sys:initialize-database-type :database-type :aodbc))