[OpenLayers-Users] Passing parameters to ajax request callback method

[Eric Lemoine]

On Mon, Mar 16, 2009 at 10:30 PM, Zer <zer_matt at hotmail.com> wrote:
>
> Thanks Eric!
>
> I'm not that JS guru I should be....  Could you please explain a bit more
> how this would work?

Ok, try this (untested):

var yourParameter = {"some": "thing"};

function yourCallback(parameter, request) {
    // "parameter" references the same object as "yourParameter" above
    console.log(parameter);
}

OpenLayers.Request.GET({
    url: yourUrl,
    callback: OpenLayers.Function.bind(yourCallback, null, yourParameter)
});

Alternatively, you could rely the scope (also untested):

var yourParameter = {"some": "thing"};

function yourCallback(request) {
    // "this" references the same object as "yourParameter" above
    console.log(this);
}

OpenLayers.Request.GET({
    url: yourUrl,
    callback: yourCallback,
    scope: yourParameter
});

Cheers,


--
Eric