r8847: rename clsql to clsql-classic

[clsql.git] / classic / functional.lisp

diff --git a/classic/functional.lisp b/classic/functional.lisp
new file mode 100644 (file)
index 0000000..bf38a12
--- /dev/null
+++ b/classic/functional.lisp
@@ -0,0 +1,89 @@
+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name:          functional.lisp
+;;;; Purpose:       Functional interface
+;;;; Programmer:    Pierre R. Mai
+;;;;
+;;;; Copyright (c) 1999-2001 Pierre R. Mai
+;;;;
+;;;; $Id$
+;;;;
+;;;; This file is part of CLSQL. 
+;;;;
+;;;; CLSQL is free software; you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License (version 2) as
+;;;; published by the Free Software Foundation.
+;;;;
+;;;; CLSQL is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;;; GNU General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with CLSQL; if not, write to the Free Software Foundation, Inc.,
+;;;; 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+;;;; *************************************************************************
+
+(in-package #:clsql-sys)
+
+
+;;; This file implements the more advanced functions of the
+;;; functional SQL interface, which are just nicer layers above the
+;;; basic SQL interface.
+
+;;; With the integration of CLSQL-USQL, these functions are no
+;;; longer exported by the CLSQL package since they conflict with names
+;;; exported by CLSQL-USQL
+
+(defun insert-records
+    (&key into attributes values av-pairs query (database *default-database*))
+  "Insert records into the given table according to the given options."
+  (cond
+    ((and av-pairs (or attributes values))
+     (error "Supply either av-pairs or values (and possibly attributes) to call of insert-records."))
+    ((and (or av-pairs values) query)
+     (error
+      "Supply either query or values/av-pairs to call of insert-records."))
+    ((and attributes (not query)
+          (or (not (listp values)) (/= (length attributes) (length values))))
+     (error "You must supply a matching values list when using attributes in call of insert-records."))
+    (query
+     (execute-command
+      (format nil "insert into ~A ~@[(~{~A~^,~}) ~]~A" into attributes query)
+      :database database))
+    (t
+     (execute-command
+      (multiple-value-bind (attributes values)
+          (if av-pairs
+              (values (mapcar #'first av-pairs) (mapcar #'second av-pairs))
+              (values attributes values))
+       (format nil "insert into ~A ~@[(~{~A~^,~}) ~]values (~{'~A'~^,~})"
+               into attributes values))
+      :database database))))
+
+(defun delete-records (&key from where (database *default-database*))
+  "Delete the indicated records from the given database."
+  (execute-command (format nil "delete from ~A ~@[where ~A ~]" from where)
+                   :database database))
+
+(defun update-records (table &key attributes values av-pairs where (database *default-database*))
+  "Update the specified records in the given database."
+  (cond
+    ((and av-pairs (or attributes values))
+     (error "Supply either av-pairs or values (and possibly attributes) to call of update-records."))
+    ((and attributes
+          (or (not (listp values)) (/= (length attributes) (length values))))
+     (error "You must supply a matching values list when using attributes in call of update-records."))
+    ((or (and attributes (not values)) (and values (not attributes)))
+     (error "You must supply both values and attributes in call of update-records."))
+    (t
+     (execute-command
+      (format nil "update ~A set ~:{~A = '~A'~:^, ~}~@[ where ~A~]"
+              table
+              (or av-pairs
+                  (mapcar #'list attributes values))
+              where)
+      :database database))))
+