1 ld;;; -*- 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 1.1 2002/12/09 10:42:06 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 (defmethod sql-name ((cl hyperobject-class))
40 "Return name of SQL table for a class"
41 (let* ((sql-name-slot (slot-value cl 'sql-name))
42 (name (if (consp sql-name-slot) (car sql-name-slot) sql-name-slot))
43 (lisp-name (if name name (class-name cl))))
44 (lisp-name-to-sql-name lisp-name)))
46 (defmethod sql-name ((esd hyperobject-esd))
47 (let* ((name (slot-value esd 'sql-name))
48 (lisp-name (if name name (slot-definition-name esd))))
49 (lisp-name-to-sql-name lisp-name)))
52 (defun lisp-name-to-sql-name (lisp)
53 "Convert a lisp name (atom or list, string or symbol) into a canonical
55 (unless (stringp lisp)
58 (symbol (symbol-name lisp))
59 (t (write-to-string lisp)))))
60 (let ((sql (make-string (length lisp))))
61 (dotimes (i (length lisp))
64 (let ((c (char lisp i)))
74 (defun define-inverse (class esd)
75 "Define an inverse function for a slot"
76 (let ((inverse (slot-value esd 'inverse)))
79 `(defun ,inverse (obj)
80 (format t "~&Finding key: ~S for class ~S ~%" obj ,class)
81 ;; create inverse function
86 (defun generate-create-table-cmd (cl esds)
87 (let ((cmd (format nil "CREATE TABLE ~A" (slot-value cl 'sql-name)))
88 (subobjects (slot-value cl 'subobjects)))
90 (unless (find (slot-definition-name esd) subobjects :key #'name-slot)
91 (if (eq esd (car esds))
92 (string-append cmd " (")
93 (string-append cmd ", "))
94 (string-append cmd (lisp-name-to-sql-name (slot-definition-name esd))
96 (let ((length (slot-value esd 'length))
97 (sql-type (slot-value esd 'sql-type)))
98 (string-append cmd (sql-field-cmd sql-type length)))))
99 (string-append cmd ")")))
102 (defun sql-field-cmd (type length)
103 (case (intern (symbol-name type) (symbol-name :keyword))
109 (format nil "CHAR(~d)" length))
111 (format nil "VARCHAR(~d)" length))))
117 (format nil "CHAR(~D)" length))
120 ((or :fixnum :integer)
124 ((or :short-float :float)
129 (defun generate-drop-table-cmd (table-name)
130 (format nil "DROP TABLE ~a" table-name))
132 (defun generate-create-indices-cmds (table-name slots)
135 (when (slot-value slot 'index)
136 (let ((sql-name (slot-value slot 'sql-name)))
137 (push (sql-cmd-index table-name sql-name (slot-value slot 'unique))
141 (defun sql-cmd-index (table field unique)
142 (let ((*print-circle* nil))
143 (format nil "CREATE ~AINDEX ~A ON ~A(~A)"
144 (if unique "UNIQUE " "")
145 (sql-index-name table field)
149 (defun sql-index-name (table field)
150 (format nil "~A_~A" table field))
152 ;;;; Runtime Commands
154 (defmethod sql-create (cl)
155 (with-sql-connection (conn)
156 (sql-execute (slot-value cl 'create-table-cmd) conn)
157 (dolist (cmd (slot-value cl 'create-indices-cmds))
158 (sql-execute cmd conn))
161 (defmethod sql-drop (cl)
162 (mutex-sql-execute (slot-value cl 'drop-table-cmd))
166 (defmethod sql-insert (obj)
168 (format nil "INSERT INTO ~a (~a) VALUES (~a)"
169 (sql-name self) (sql-cmd-field-names self) (format-values self))))
171 (defmethod sql-select (obj lisp-name key)
175 (format nil "SELECT ~a FROM ~a WHERE ~a=~a"
176 (sql-cmd-field-names self) (sql-name self)
177 (inverse-field-name self) key)))))
179 (format t "process returned fields"))))
182 (defun format-values (self)
184 (fields (fields self)))
185 (dolist (field fields)
186 (unless (eq field (car fields))
187 (string-append values ","))
188 (let ((name (car field)))
189 (with-key-value-list (key value (rest field))
191 (string-append values
193 ((:fixnum :bigint :short-float :double-float)
195 (slot-value self name)))
199 (slot-value self name))))))))))
204 (defun inverse-field-string (fields)
206 (dolist (field fields)
207 (let ((name-string (write-to-string (car field))))
208 (with-key-value-list (key value (rest field))
209 (when (eq key :inverse)
210 (setq inverse value)))))
212 (write-to-string inverse))))
214 (defun row-field-string (fields)
216 (dolist (field fields)
217 (unless (eq field (car fields))
218 (string-append names ","))
219 (string-append names (lisp-name-to-sql-name (car field))))
223 (defun parse-fields (table-name fields)
225 (dolist (field fields)
226 (let* ((fname (car field))
227 (name-string (write-to-string fname))
228 (initarg (intern name-string :keyword))concat-symbol
230 (options (rest field)))
231 (with-key-value-list (key value options)
234 (setq def (nconc def (list :type
248 (setq def (nconc def (list
250 :accessor (concat-symbol
251 (write-to-string table-name) "-"
252 (write-to-string fname)))))
253 (push def class-fields)))