iCookieDuration session only

fly2279

How can I set the cookie duration for state saving to session only? I tried setting iCookieDuration to 0 which causes state saving to not work. I also tried setting it to null.

allan

You mean browser session only? Honestly, I'm not sure how to do it - is there a standard way of telling a browser is a cookie is session or permanent?

Allan

jp_noronha

You can allways use a jquery plugin to deal with cookies

[code]
/*jslint browser: true */ /*global jQuery: true */

/**
* jQuery Cookie plugin
*
* Copyright (c) 2010 Klaus Hartl (stilbuero.de)
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
*/

// TODO JsDoc

/**
* Create a cookie with the given key and value and other optional parameters.
*
* @example $.cookie('the_cookie', 'the_value');
* @desc Set the value of a cookie.
* @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
* @desc Create a cookie with all available options.
* @example $.cookie('the_cookie', 'the_value');
* @desc Create a session cookie.
* @example $.cookie('the_cookie', null);
* @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
* used when the cookie was set.
*
* @param String key The key of the cookie.
* @param String value The value of the cookie.
* @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
* @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
* If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
* If set to null or omitted, the cookie will be a session cookie and will not be retained
* when the the browser exits.
* @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
* @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
* @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
* require a secure protocol (like HTTPS).
* @type undefined
*
* @name $.cookie
* @cat Plugins/Cookie
* @author Klaus Hartl/klaus.hartl@stilbuero.de
*/

/**
* Get the value of a cookie with the given key.
*
* @example $.cookie('the_cookie');
* @desc Get the value of a cookie.
*
* @param String key The key of the cookie.
* @return The value of the cookie.
* @type String
*
* @name $.cookie
* @cat Plugins/Cookie
* @author Klaus Hartl/klaus.hartl@stilbuero.de
*/
jQuery.cookie = function (key, value, options) {

// key and at least value given, set cookie...
if (arguments.length > 1 && String(value) !== "[object Object]") {
options = jQuery.extend({}, options);

if (value === null || value === undefined) {
options.expires = -1;
}

if (typeof options.expires === 'number') {
var days = options.expires, t = options.expires = new Date();
t.setDate(t.getDate() + days);
}

value = String(value);

return (document.cookie = [
encodeURIComponent(key), '=',
options.raw ? value : encodeURIComponent(value),
options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
options.path ? '; path=' + options.path : '',
options.domain ? '; domain=' + options.domain : '',
options.secure ? '; secure' : ''
].join(''));
}

// key and possibly options given, get cookie...
options = value || {};
var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
};
[/code]

benhansenslc

First off thanks for the wonderful library!

To answer your question, according to the the mozilla developer docs (https://developer.mozilla.org/en/DOM/document.cookie):
[quote];expires=date-in-GMTString-format If not specified it will expire at the end of session.[/quote]

I looked at the code and noticed this functionality was not implemented but I was able to achieve it by specifying the fnCookieCallback callback as below.

[code]
"fnCookieCallback": function (sName, oData, sExpires, sPath) {
return sName + "="+JSON.stringify(oData)+"; path=" + sPath;
},
[/code]

Hope this helps anyone else looking to do the same.

allan

Nice one - thanks very much for sharing your solution with us!

Allan