r2753: move files

[clsql.git] / db-aodbc / aodbc-sql.cl

diff --git a/db-aodbc/aodbc-sql.cl b/db-aodbc/aodbc-sql.cl
new file mode 100644 (file)
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+++ b/db-aodbc/aodbc-sql.cl
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+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name:          aodbc-sql.cl
+;;;; Purpose:       Low-level interface for CLSQL AODBC backend
+;;;; Programmer:    Kevin M. Rosenberg
+;;;; Date Started:  Feb 2002
+;;;;
+;;;; $Id: aodbc-sql.cl,v 1.1 2002/09/18 07:43:40 kevin Exp $
+;;;;
+;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;;
+;;;; 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.
+;;;; *************************************************************************
+
+(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
+(in-package :clsql-aodbc)
+
+
+;; interface foreign library loading routines
+(defmethod database-type-library-loaded ((database-type (eql :aodbc)))
+  "T if foreign library was able to be loaded successfully. "
+  (when (find-package :dbi) ;; finds Allegro's DBI (AODBC) package
+    t))
+
+(defmethod clsql-base-sys:database-type-load-foreign ((databae-type (eql :aodbc)))
+  t)
+
+(when (find-package :dbi)
+  (clsql-base-sys:database-type-load-foreign :aodbc)) 
+
+(defmethod database-initialize-database-type ((database-type (eql :aodbc)))
+  t)
+
+
+;; AODBC interface
+
+(defclass aodbc-database (database)
+  ((aodbc-conn :accessor database-aodbc-conn :initarg :aodbc-conn)))
+
+(defmethod database-name-from-spec (connection-spec
+                                   (database-type (eql :aodbc)))
+  (check-connection-spec connection-spec database-type (dsn user password))
+  (destructuring-bind (dsn user password) connection-spec
+    (declare (ignore password))
+    (concatenate 'string dsn "/" user)))
+
+(defmethod database-connect (connection-spec (database-type (eql :aodbc)))
+  (check-connection-spec connection-spec database-type (dsn user password))
+  #+aodbc-v2
+  (destructuring-bind (dsn user password) connection-spec
+    (handler-case
+       (make-instance 'aodbc-database
+         :name (database-name-from-spec connection-spec :aodbc)
+         :aodbc-conn
+         (dbi:connect :user user
+                      :password password
+                      :data-source-name dsn))
+      (error ()        ;; Init or Connect failed
+       (error 'clsql-connect-error
+              :database-type database-type
+              :connection-spec connection-spec
+              :errno nil
+              :error "Connection failed")))))
+
+(defmethod database-disconnect ((database aodbc-database))
+  #+aodbc-v2
+  (dbi:disconnect (database-aodbc-conn database))
+  (setf (database-aodbc-conn database) nil)
+  t)
+
+(defmethod database-query (query-expression (database aodbc-database) types) 
+  #+aodbc-v2
+  (handler-case
+      (dbi:sql query-expression :db (database-aodbc-conn database)
+              :types types)
+    (error ()
+      (error 'clsql-sql-error
+            :database database
+            :expression query-expression
+            :errno nil
+            :error "Query failed"))))
+
+(defmethod database-execute-command (sql-expression 
+                                    (database aodbc-database))
+  #+aodbc-v2
+  (handler-case
+      (dbi:sql sql-expression :db (database-aodbc-conn database))
+    (error ()
+      (error 'clsql-sql-error
+            :database database
+            :expression sql-expression
+            :errno nil
+            :error "Execute command failed"))))
+
+(defstruct aodbc-result-set
+  (query nil)
+  (types nil :type cons)
+  (full-set nil :type boolean))
+
+(defmethod database-query-result-set (query-expression (database aodbc-database) 
+                                     &key full-set types)
+  #+aodbc-v2
+  (handler-case 
+      (multiple-value-bind (query column-names)
+         (dbi:sql query-expression 
+                  :db (database-aodbc-conn database) 
+                  :row-count nil
+                  :column-names t
+                  :query t
+                  :types types
+                  )
+       (values
+        (make-aodbc-result-set :query query :full-set full-set 
+                               :types types)
+        (length column-names)
+        nil ;; not able to return number of rows with aodbc
+        ))
+    (error ()
+      (error 'clsql-sql-error
+            :database database
+            :expression query-expression
+            :errno nil
+            :error "Query result set failed"))))
+
+(defmethod database-dump-result-set (result-set (database aodbc-database))
+  #+aodbc-v2
+  (dbi:close-query (aodbc-result-set-query result-set))
+  t)
+
+(defmethod database-store-next-row (result-set
+                                   (database aodbc-database)
+                                   list)
+  #+aodbc-v2
+  (let ((row (dbi:fetch-row (aodbc-result-set-query result-set) nil 'eof)))
+    (if (eq row 'eof)
+       nil
+      (progn
+       (loop for elem in row
+           for rest on list
+           do
+             (setf (car rest) elem))
+       list))))
+
+                      
+(when (clsql-base-sys:database-type-library-loaded :aodbc)
+  (clsql-base-sys:initialize-database-type :database-type :aodbc))