Accessing a passed variable from JQuery to Rails controller

Question

I have this JQuery code:

    $("div.notification").live("click", function(){
        window.location=$(this).find("a").attr("href");
        var myId = $(this).attr("id");
        $.post("/videos/selected_notification.js", myId);
        return false;
    });

I want to be able to access myId from inside my controller that the post request hits. How do I do this?

mu is too short · Accepted Answer · 2011-05-22 06:20:14Z

2

Give your myId value a name and you can pull it out of params just like any other POST parameter:

$.post("/videos/selected_notification.js", { id: myId });

And then, in the controller:

id = params['id'] # Or params[:id] since params is a HashWithIndifferentAccess

edited May 22, 2011 at 6:20

answered May 22, 2011 at 5:56

mu is too short

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4 Comments

Justin Meltzer Over a year ago

ahh nice... what if I'm not actually POSTing anything. Would that code be OK?

Justin Meltzer Over a year ago

also would it not be params[:id]?

mu is too short Over a year ago

@Justin: Why would you by using $.post if you're not posting anything? You have to post something to get your data to the server (or use GET if that's more appropriate). Accessing params with the :id symbol or 'id' string should work.

mu is too short Over a year ago

@Justin: params is actually a HashWithIndifferentAccess, not a plain Hash. The keys are actually strings but HashWithIndifferentAccess converts symbols to strings for you.

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