(s:set! key val)
(s:get key)


make a selection drop down
~~~~~~~~~~~~~~~~~~~~~~~~~~

;; items is a hierarchial alist
;; ( (label1 value1 dispval1 #t) ;; <== this one is selected
;;   (label2 (label3 value2 dispval2)
;;           (label4 value3 dispval3)))

In view.scm: 

;;                                   Label   Value visible-str selected
(s:select '(("World" 0)("Country" 1)("State" 2     "The state" #t       )("Town/City" 3)) 'name 'scope)

Visible str will be shown if provided. Selected will set that entry to pre-selected.

To select a specific entry:

(s:select '(("World" 0 "world" #f)("Country" 1 "country" #t)("State" 2 "state" #f)("Town/City" 3 "town" #f)) 'name 'scope)

In control.scm:

(let ((scope     (s:get-input 'scope))
      (scope-num (s:get-input 'scope 'number))) ;; 'number, 'raw or 'escaped
  ....

The optional fourth entry sets that item as selected if true

;;  PURPOSE.

;;======================================================================
;; dumbobj helpers
;;======================================================================

(declare (unit misc-stml))
(use regex (prefix dbi dbi:))
(use (prefix crypt c:))
(use regex)
(use (prefix dbi dbi:))

;; given a list of symbols give the count of the matching symbol
;; l => '(a b c)  (dumobj:indx a 'b) => 1
(define (s:get-fieldnum lst field-name)
  (let loop ((head (car lst))
             (tail (cdr lst))
             (fnum 0))
    (if (eq? head field-name) fnum

;; Copyright 2007-2011, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

(declare (unit session))
;; (require-library dbi)
;; (use dbi)
(use (prefix dbi dbi:))
(require-extension regex)
(declare (uses cookie))

;; sessions table
;; id session_id session_key
;; create table sessions (id serial not null,session-key text);

(define (session:make-cookie self)
  ;; (list (conc "session_key=" (sdat-get-session-key self) "; Path=/; Domain=." (sdat-get-domain self) "; Max-Age=" (* 86400 14) "; Version=1"))) 
  ;; According to 
  ;;    http://www.codemarvels.com/2010/11/apache-rewriterule-set-a-cookie-on-localhost/

  ;;  Here are the 2 (often left out) requirements to set a cookie using
  ;;  httpd-F¢s rewrite rule (mod_rewrite), while working on localhost:-A
  ;;  httpd-F�s rewrite rule (mod_rewrite), while working on localhost:-A
  ;;
  ;;  Use the IP 127.0.0.1 instead of localhost/machine-name as the
  ;;  domain; e.g. [CO=someCookie:someValue:127.0.0.1:2:/], which says
  ;;  create a cookie -Y´someCookie¡ with value ´someValue¡ for the
  ;;  domain ´127.0.0.1$B!m(B having a life time of 2 mins, for any path in
  ;;  create a cookie -Y�someCookie� with value �someValue� for the
  ;;  domain �127.0.0.1$B!m(B having a life time of 2 mins, for any path in
  ;;  the domain (path=/). (Obviously you will have to run the
  ;;  application with this value in the URL)
  ;;
  ;;  To make a session cookie, limit the flag statement to just three
  ;;  attributes: name, value and domain. e.g
  ;;  [CO=someCookie:someValue:127.0.0.1] %G–%@ Any further
  ;;  settings, apache writes an¡ expires¡ attribute for the set-cookie
  ;;  settings, apache writes an� expires� attribute for the set-cookie
  ;;  header, which makes the cookie a persistent one (not really
  ;;  persistent, as the expires value set is the current server time
  ;;  %G–%@ so you don-F-F¢t even get to see your cookie!)-A
  ;;  %G–%@ so you don-F-F�t even get to see your cookie!)-A
  (list (string-substitute 
	 ";" "; " 
	 (car (construct-cookie-string 
	       ;; warning! messing up this itty bitty bit of code will cost much time!
	       `(("session_key" ,(sdat-get-session-key self)
		  expires: ,(+ (current-seconds) (* 14 86400)) 
		  ;; max-age: (* 14 86400)