How do I get Rails variables from my returned jQuery Ajax data?

Question

I have an Ajax request from a page in my Rails app that looks like so:

$.ajax({
 type: 'POST',
 url: '/users/create/',
 data: "screen_name=<%[email protected]_name%>",
 success: createSuccessHandler,
 error: createErrorHandler,
 complete: hideLoadingImage
});

And currently the action responds with this:

respond_to do |format|
  format.js  { render :text => @user}
  format.html { redirect_to @user }
end

The create action works fine but how to I get the returned values (data) in my success method so I can do something like this?

function createSuccessHandler(data) {

    $("#div1").append(data.value1); 
    $("#div2").append(data.value2); 

}

Basically I'm trying to split the data up into different variables.

did you try to work with render :text => @user.to_json?

apneadiving
– apneadiving

2011-02-10 22:28:54 +00:00
Commented Feb 10, 2011 at 22:28 — apneadiving
– apneadiving, Commented Feb 10, 2011 at 22:28

cam · Accepted Answer · 2011-02-10 22:29:06Z

4

Return json in your controller (e.g., add a format.json stanza and request that instead of the .js one). Then in your createSuccessHandler function you'll do something like:

var foo = eval(data);
$("#div1").append(foo.value1); 
$("#div2").append(foo.value2);

Note that some javascript libraries (like jQuery) provide safer ways to handle json than using eval, feel free to use those instead.

answered Feb 10, 2011 at 22:29

cam

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