Loop through cookies and get value for a particular cookie name.

[forums UseR]

Hello fellow Ranchers,

Can anybody point me to code/resources on how to loop through cookies to get hold of the value for a particular cookie.

Thanks

Srinivas

[Eric Pascarello]

I would start here: JavaScript getCookie

Eric

[forums UseR]

Eric Pascarello wrote:I would start here: JavaScript getCookie

Eric

Hi Eric,

I followed your google search and found this resource

// this fixes an issue with the old method, ambiguous values
// with this test document.cookie.indexOf( name + "=" );
function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f

	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );


		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}

The above code seems flawed, since it won't search my cookie that I have created earlier. As a result, it is freshly creating another cookie with the same name.

Something strange is happening, the new cookie is getting created at a different path than the earlier one!

When I check details about document.cookie , after I have already created one with a name 'selection', I don't see selection anywhere in the cookie (because it is searching from a different path!)

Is it possible to loop through 2 paths, and get all the cookies. Here are the 2 paths

/irj/servlet/prt/portal/prteventname/Navigate/prtroot/

/irj/servlet/prt/portal/prtroot/

[Eric Pascarello]

That code is not creating a different cookie. It is taking the cookie and splitting it up and storing it in an object.

How are you creating the cookie? When the cookie is created are you setting the domain?

Eric

[forums UseR]

Eric Pascarello wrote:
How are you creating the cookie? When the cookie is created are you setting the domain?
Eric

Here is my setCookie code:

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
alert ( "Cookie Testing6" + document.cookie + "!") 
}

The above 'alert' won't print the cookie that I created earlier with the same name (as it was already created at a different path)
Is this because I am not considering the path ? The domain is same for the 2 cookies, only the path is different...

Thanks

Srinivas

[Eric Pascarello]

How is the cookie being created?

Eric

[forums UseR]

When i create cookie, its getting saved at a certain location. I click a button and go to a different tab ( a different page). I still see the cookie.

When I click back to original screen, the browser is not able to retrieve the cookie that I created earlier. And my code will create a new cookie if one doesn't exist already. This new cookie is getting created at a different location. Now I see the same cookie name at 2 different paths.

How to fix this?