;;;; Original code by Pierre R. Mai
;;;; Date Started: Feb 2002
;;;;
-;;;; $Id: sql.cl,v 1.3 2002/03/24 04:37:09 kevin Exp $
+;;;; $Id: sql.cl,v 1.4 2002/03/24 18:08:27 kevin Exp $
;;;;
;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
;;; Basic operations on databases
-(defmethod query (query-expression &key (database *default-database*))
+(defmethod query (query-expression &key (database *default-database*)
+ field-types)
"Execute the SQL query expression query-expression on the given database.
Returns a list of lists of values of the result of that expression."
- (database-query query-expression database))
+ (database-query query-expression database field-types))
-(defgeneric database-query (query-expression database)
- (:method (query-expression (database closed-database))
- (declare (ignore query-expression))
+(defgeneric database-query (query-expression database field-types)
+ (:method (query-expression (database closed-database) field-types)
+ (declare (ignore query-expression field-types))
(signal-closed-database-error database))
(:documentation "Internal generic implementation of query."))
;;; Mapping and iteration
(defgeneric database-query-result-set
- (query-expression database &optional full-set)
- (:method (query-expression (database closed-database) &optional full-set)
- (declare (ignore query-expression full-set))
+ (query-expression database &key full-set field-types)
+ (:method (query-expression (database closed-database) &key full-set field-types)
+ (declare (ignore query-expression full-set field-types))
(signal-closed-database-error database)
(values nil nil nil))
(:documentation
(defun map-query (output-type-spec function query-expression
- &key (database *default-database*))
+ &key (database *default-database*)
+ (field-types nil))
"Map the function over all tuples that are returned by the query in
query-expression. The results of the function are collected as
specified in output-type-spec and returned like in MAP."
(macrolet ((type-specifier-atom (type)
`(if (atom ,type) ,type (car ,type))))
(case (type-specifier-atom output-type-spec)
- ((nil) (map-query-for-effect function query-expression database))
- (list (map-query-to-list function query-expression database))
+ ((nil)
+ (map-query-for-effect function query-expression database field-types))
+ (list
+ (map-query-to-list function query-expression database field-types))
((simple-vector simple-string vector string array simple-array
bit-vector simple-bit-vector base-string
simple-base-string)
- (map-query-to-simple output-type-spec
- function query-expression database))
+ (map-query-to-simple output-type-spec function query-expression database field-types))
(t
(funcall #'map-query (cmucl-compat:result-type-or-lose output-type-spec t)
- function query-expression :database database)))))
+ function query-expression :database database :field-types field-types)))))
-(defun map-query-for-effect (function query-expression database)
+(defun map-query-for-effect (function query-expression database field-types)
(multiple-value-bind (result-set columns)
- (database-query-result-set query-expression database)
+ (database-query-result-set query-expression database :full-set nil
+ :field-types field-types)
(when result-set
(unwind-protect
(do ((row (make-list columns)))
(apply function row))
(database-dump-result-set result-set database)))))
-(defun map-query-to-list (function query-expression database)
+(defun map-query-to-list (function query-expression database field-types)
(multiple-value-bind (result-set columns)
- (database-query-result-set query-expression database)
+ (database-query-result-set query-expression database :full-set nil
+ :field-types field-types)
(when result-set
(unwind-protect
(let ((result (list nil)))
(database-dump-result-set result-set database)))))
-(defun map-query-to-simple (output-type-spec function query-expression database)
+(defun map-query-to-simple (output-type-spec function query-expression database field-types)
(multiple-value-bind (result-set columns rows)
- (database-query-result-set query-expression database t)
+ (database-query-result-set query-expression database :full-set t :
+ field-types field-types)
(when result-set
(unwind-protect
(if rows
(database-dump-result-set result-set database)))))
(defmacro do-query (((&rest args) query-expression
- &key (database '*default-database*))
+ &key (database '*default-database*)
+ (field-types nil))
&body body)
(let ((result-set (gensym))
(columns (gensym))
(db (gensym)))
`(let ((,db ,database))
(multiple-value-bind (,result-set ,columns)
- (database-query-result-set ,query-expression ,db)
+ (database-query-result-set ,query-expression ,db
+ :full-set nil :field-types ,field-types)
(when ,result-set
(unwind-protect
(do ((,row (make-list ,columns)))