+++ /dev/null
-;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
-;;;; *************************************************************************
-;;;; FILE IDENTIFICATION
-;;;;
-;;;; Name: loop-extension.lisp
-;;;; Purpose: Extensions to the Loop macro for CLSQL
-;;;;
-;;;; Copyright (c) 2001-2004 Kevin Rosenberg and (c) 1999-2001 Pierre R. Mai
-;;;;
-;;;; $Id$
-;;;; *************************************************************************
-
-(in-package #:cl-user)
-
-#+(or allegro sbcl)
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defpackage #:ansi-loop
- (:import-from #+sbcl #:sb-loop #+allegro #:excl
- #:loop-error
- #:*loop-epilogue*
- #:*loop-ansi-universe*
- #:add-loop-path)))
-
-#+(or allegro sbcl)
-(defun ansi-loop::loop-gentemp (&optional (pref 'loopva-))
- (gensym (string pref)))
-
-#+(or cmu scl sbcl openmcl allegro)
-(defun loop-record-iteration-path (variable data-type prep-phrases)
- (let ((in-phrase nil)
- (from-phrase nil))
- (loop for (prep . rest) in prep-phrases
- do
- (case prep
- ((:in :of)
- (when in-phrase
- (ansi-loop::loop-error
- "Duplicate OF or IN iteration path: ~S." (cons prep rest)))
- (setq in-phrase rest))
- ((:from)
- (when from-phrase
- (ansi-loop::loop-error
- "Duplicate FROM iteration path: ~S." (cons prep rest)))
- (setq from-phrase rest))
- (t
- (ansi-loop::loop-error
- "Unknown preposition: ~S." prep))))
- (unless in-phrase
- (ansi-loop::loop-error "Missing OF or IN iteration path."))
- (unless from-phrase
- (setq from-phrase '(clsql:*default-database*)))
-
- (unless (consp variable)
- (setq variable (list variable)))
-
- (cond
- ;; object query
- ((and (consp (first in-phrase))
- (string-equal "sql-query" (symbol-name (caar in-phrase)))
- (consp (second (first in-phrase)))
- (eq 'quote (first (second (first in-phrase))))
- (symbolp (second (second (first in-phrase)))))
-
- (let ((result-var (ansi-loop::loop-gentemp
- 'loop-record-result-))
- (step-var (ansi-loop::loop-gentemp 'loop-record-step-)))
- `(((,variable nil ,@(and data-type (list data-type)))
- (,result-var (clsql:query ,(first in-phrase)))
- (,step-var nil))
- ()
- ()
- ()
- (if (null ,result-var)
- t
- (progn
- (setq ,step-var (first ,result-var))
- (setq ,result-var (rest ,result-var))
- nil))
- (,variable ,step-var)
- (null ,result-var)
- ()
- (if (null ,result-var)
- t
- (progn
- (setq ,step-var (first ,result-var))
- (setq ,result-var (rest ,result-var))
- nil))
- (,variable ,step-var))))
-
- ((consp variable)
- (let ((query-var (ansi-loop::loop-gentemp 'loop-record-))
- (db-var (ansi-loop::loop-gentemp 'loop-record-database-))
- (result-set-var (ansi-loop::loop-gentemp
- 'loop-record-result-set-))
- (step-var (ansi-loop::loop-gentemp 'loop-record-step-)))
- (push `(when ,result-set-var
- (clsql:database-dump-result-set ,result-set-var ,db-var))
- ansi-loop::*loop-epilogue*)
- `(((,variable nil ,@(and data-type (list data-type)))
- (,query-var ,(first in-phrase))
- (,db-var ,(first from-phrase))
- (,result-set-var nil)
- (,step-var nil))
- ((multiple-value-bind (%rs %cols)
- (clsql:database-query-result-set ,query-var ,db-var :result-types :auto)
- (setq ,result-set-var %rs ,step-var (make-list %cols))))
- ()
- ()
- (not (clsql:database-store-next-row ,result-set-var ,db-var ,step-var))
- (,variable ,step-var)
- (not ,result-set-var)
- ()
- (not (clsql:database-store-next-row ,result-set-var ,db-var ,step-var))
- (,variable ,step-var)))))))
-
-#+(or cmu scl sbcl openmcl allegro)
-(ansi-loop::add-loop-path '(record records tuple tuples)
- 'loop-record-iteration-path
- ansi-loop::*loop-ansi-universe*
- :preposition-groups '((:of :in) (:from))
- :inclusive-permitted nil)
-
-#+lispworks
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (in-package loop))
-
-#+lispworks
-(cl-user::define-loop-method (record records tuple tuples) clsql-loop-method
- (in of from))
-
-#+lispworks
-(defun clsql-loop-method (method-name iter-var iter-var-data-type
- prep-phrases inclusive? allowed-preps
- method-specific-data)
- (declare (ignore method-name inclusive? allowed-preps method-specific-data))
- (let ((in-phrase nil)
- (from-phrase nil))
- (loop for (prep . rest) in prep-phrases
- do
- (cond
- ((or (eq prep 'in) (eq prep 'of))
- (when in-phrase
- (error
- "Duplicate OF or IN iteration path: ~S." (cons prep rest)))
- (setq in-phrase rest))
- ((eq prep 'from)
- (when from-phrase
- (error
- "Duplicate FROM iteration path: ~S." (cons prep rest)))
- (setq from-phrase rest))
- (t
- (error
- "Unknown preposition: ~S." prep))))
- (unless in-phrase
- (error "Missing OF or IN iteration path."))
- (unless from-phrase
- (setq from-phrase '(clsql:*default-database*)))
-
- (unless (consp iter-var)
- (setq iter-var (list iter-var)))
-
- (cond
- ;; object query
- ((and (consp in-phrase)
- (string-equal "sql-query" (symbol-name (car in-phrase)))
- (consp (second in-phrase))
- (eq 'quote (first (second in-phrase)))
- (symbolp (second (second in-phrase))))
-
- (let ((result-var (gensym "LOOP-RECORD-RESULT-"))
- (step-var (gensym "LOOP-RECORD-STEP-")))
- (values
- t
- nil
- `(,@(mapcar (lambda (v) `(,v nil)) iter-var)
- (,result-var (clsql:query ,in-phrase))
- (,step-var nil))
- ()
- ()
- ()
- `((if (null ,result-var)
- t
- (progn
- (setq ,step-var (first ,result-var))
- (setq ,result-var (rest ,result-var))
- nil)))
- `(,iter-var ,step-var)
- `((if (null ,result-var)
- t
- (progn
- (setq ,step-var (first ,result-var))
- (setq ,result-var (rest ,result-var))
- nil)))
- `(,iter-var ,step-var)
- ()
- ()
- )))
-
- ((consp iter-var)
- (let ((query-var (gensym "LOOP-RECORD-"))
- (db-var (gensym "LOOP-RECORD-DATABASE-"))
- (result-set-var (gensym "LOOP-RECORD-RESULT-SET-"))
- (step-var (gensym "LOOP-RECORD-STEP-")))
- (values
- t
- nil
- `(,@(mapcar (lambda (v) `(,v nil)) iter-var)
- (,query-var ,in-phrase)
- (,db-var ,(first from-phrase))
- (,result-set-var nil)
- (,step-var nil))
- `((multiple-value-bind (%rs %cols)
- (clsql:database-query-result-set ,query-var ,db-var :result-types :auto)
- (setq ,result-set-var %rs ,step-var (make-list %cols))))
- ()
- ()
- `((unless (clsql:database-store-next-row ,result-set-var ,db-var ,step-var)
- (when ,result-set-var
- (clsql:database-dump-result-set ,result-set-var ,db-var))
- t))
- `(,iter-var ,step-var)
- `((unless (clsql:database-store-next-row ,result-set-var ,db-var ,step-var)
- (when ,result-set-var
- (clsql:database-dump-result-set ,result-set-var ,db-var))
- t))
- `(,iter-var ,step-var)
- ()
- ()))))))
-