1 ;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: umlisp -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
6 ;;;; Purpose: SQL Generation functions for Hyperobject
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Apr 2000
10 ;;;; $Id: sql.lisp,v 1.4 2003/03/29 04:10:44 kevin Exp $
12 ;;;; This file, part of Hyperobject-SQL, is
13 ;;;; Copyright (c) 2000-2002 by Kevin M. Rosenberg, M.D.
14 ;;;; *************************************************************************
16 (in-package :hyperobject)
17 (eval-when (:compile-toplevel :execute)
18 (declaim (optimize (speed 2) (safety 2) (compilation-speed 0) (debug 2))))
21 ;;;; Metaclass initialization commands
23 (defun finalize-sql (cl)
24 (setf (slot-value cl 'sql-name) (sql-name cl))
25 (setf (slot-value cl 'drop-table-cmd) (generate-drop-table-cmd
26 (slot-value cl 'sql-name)))
27 (let ((esds (class-slots cl)))
29 (setf (slot-value esd 'sql-name) (sql-name esd)))
30 (setf (slot-value cl 'create-table-cmd)
31 (generate-create-table-cmd cl esds))
32 (setf (slot-value cl 'create-indices-cmds)
33 (generate-create-indices-cmds (slot-value cl 'sql-name) esds))
35 (when (slot-value esd 'inverse)
36 (define-inverse cl esd))))
39 (defgeneric sql-name (cl)
42 (defmethod sql-name ((cl hyperobject-class))
43 "Return name of SQL table for a class"
44 (let* ((sql-name-slot (slot-value cl 'sql-name))
45 (name (if (consp sql-name-slot) (car sql-name-slot) sql-name-slot))
46 (lisp-name (if name name (class-name cl))))
47 (lisp-name-to-sql-name lisp-name)))
49 (defmethod sql-name ((esd hyperobject-esd))
50 (let* ((name (slot-value esd 'sql-name))
51 (lisp-name (if name name (slot-definition-name esd))))
52 (lisp-name-to-sql-name lisp-name)))
55 (defun lisp-name-to-sql-name (lisp)
56 "Convert a lisp name (atom or list, string or symbol) into a canonical
58 (unless (stringp lisp)
61 (symbol (symbol-name lisp))
62 (t (write-to-string lisp)))))
63 (let ((sql (make-string (length lisp))))
64 (dotimes (i (length lisp))
67 (let ((c (char lisp i)))
77 (defun define-inverse (class esd)
78 "Define an inverse function for a slot"
79 (let ((inverse (slot-value esd 'inverse)))
82 `(defun ,inverse (obj)
83 (format t "~&Finding key: ~S for class ~S ~%" obj ,class)
84 ;; create inverse function
89 (defun generate-create-table-cmd (cl esds)
90 (let ((cmd (format nil "CREATE TABLE ~A" (slot-value cl 'sql-name)))
91 (subobjects (slot-value cl 'subobjects)))
93 (unless (find (slot-definition-name esd) subobjects :key #'name-slot)
94 (if (eq esd (car esds))
95 (string-append cmd " (")
96 (string-append cmd ", "))
97 (string-append cmd (lisp-name-to-sql-name (slot-definition-name esd))
99 (let ((length (slot-value esd 'length))
100 (sql-type (slot-value esd 'sql-type)))
101 (string-append cmd (sql-field-cmd sql-type length)))))
102 (string-append cmd ")")))
105 (defun sql-field-cmd (type length)
106 (case (intern (symbol-name type) (symbol-name :keyword))
112 (format nil "CHAR(~d)" length))
114 (format nil "VARCHAR(~d)" length))))
120 (format nil "CHAR(~D)" length))
123 ((or :fixnum :integer)
127 ((or :short-float :float)
132 (defun generate-drop-table-cmd (table-name)
133 (format nil "DROP TABLE ~a" table-name))
135 (defun generate-create-indices-cmds (table-name slots)
138 (when (slot-value slot 'index)
139 (let ((sql-name (slot-value slot 'sql-name)))
140 (push (sql-cmd-index table-name sql-name (slot-value slot 'unique))
144 (defun sql-cmd-index (table field unique)
145 (let ((*print-circle* nil))
146 (format nil "CREATE ~AINDEX ~A ON ~A(~A)"
147 (if unique "UNIQUE " "")
148 (sql-index-name table field)
152 (defun sql-index-name (table field)
153 (format nil "~A_~A" table field))
155 ;;;; Runtime Commands
157 (defgeneric sql-create (cl))
158 (defmethod sql-create (cl)
159 (with-sql-connection (conn)
160 (sql-execute (slot-value cl 'create-table-cmd) conn)
161 (dolist (cmd (slot-value cl 'create-indices-cmds))
162 (sql-execute cmd conn))
165 (defgeneric sql-drop (cl))
166 (defmethod sql-drop (cl)
167 (mutex-sql-execute (slot-value cl 'drop-table-cmd))
171 (defmethod sql-insert (obj)
173 (format nil "INSERT INTO ~a (~a) VALUES (~a)"
174 (sql-name self) (sql-cmd-field-names self) (format-values self))))
176 (defmethod sql-select (obj lisp-name key)
180 (format nil "SELECT ~a FROM ~a WHERE ~a=~a"
181 (sql-cmd-field-names self) (sql-name self)
182 (inverse-field-name self) key)))))
184 (format t "process returned fields"))))
187 (defun format-values (self)
189 (fields (fields self)))
190 (dolist (field fields)
191 (unless (eq field (car fields))
192 (string-append values ","))
193 (let ((name (car field)))
194 (with-key-value-list (key value (rest field))
196 (string-append values
198 ((:fixnum :bigint :short-float :double-float)
200 (slot-value self name)))
204 (slot-value self name))))))))))
209 (defun inverse-field-string (fields)
211 (dolist (field fields)
212 (let ((name-string (write-to-string (car field))))
213 (with-key-value-list (key value (rest field))
214 (when (eq key :inverse)
215 (setq inverse value)))))
217 (write-to-string inverse))))
219 (defun row-field-string (fields)
221 (dolist (field fields)
222 (unless (eq field (car fields))
223 (string-append names ","))
224 (string-append names (lisp-name-to-sql-name (car field))))
228 (defun parse-fields (table-name fields)
230 (dolist (field fields)
231 (let* ((fname (car field))
232 (name-string (write-to-string fname))
233 (initarg (intern name-string :keyword))concat-symbol
235 (options (rest field)))
236 (with-key-value-list (key value options)
239 (setq def (nconc def (list :type
253 (setq def (nconc def (list
255 :accessor (concat-symbol
256 (write-to-string table-name) "-"
257 (write-to-string fname)))))
258 (push def class-fields)))