Pass boolean from rails controller to javascript for use in conditional

Question

I have a form in a bootstrap modal that is being processed using ajax. If the form validates it closes the modal or shows the validation errors as expected. However, I would like to redirect the user after the modal hide animation is finished if a condition is met based on a boolean held in the controller. Although the conditional wouldn't work as written, it lets you see what it is I am trying to accomplish:

$(document).ready(function() {
  $('#modal-window').modal({remote: true});
  $('#modal-window').modal('show');
  $('#modal-window').on('hidden', function(){
    var saved = <%= @bool %>;
    if(saved == "true"){
      $(window.location.replace("<%= some_url %>"));}
    });
})

kr1 · Accepted Answer · 2013-01-31 12:06:12Z

3

You're setting saved to a boolean (probably - whatever is in your @bool var)

var saved = <%= @bool %>;

but then compare to the string "true"

if(saved == "true"){

so, if you replace the second line with

if(saved){

it'll work

answered Jan 31, 2013 at 12:06

kr1

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1 Comment

topher Over a year ago

whoops. thanks for pointing out the mistake. shweta's works too but this had a little more explanation.

shweta · Accepted Answer · 2013-01-31 10:54:07Z

1

replace

var saved = <%= @bool %>;

with

var saved = "<%= @bool %>";

answered Jan 31, 2013 at 10:54

shweta

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Comments

kobaltz · Accepted Answer · 2013-01-31 02:55:19Z

0

Where do you have this code posted? If your form is under index.html.erb then when using remote: true, you will want to have a index.js.erb file that will serve the javascript that you're looking to run in your example. Also, don't forget to escape the return URL with j like <%=j some_url %>.

answered Jan 31, 2013 at 2:55

kobaltz

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2 Comments

topher Over a year ago

Currently this in a <script> in the index.html.erb. I have the form updating any validation errors in the index.js.erb. Wouldn't I want the .on('hidden'... in the index.html.erb since it's going to be listening for the modal to finish closing to perform the redirect?

topher Over a year ago

I'm new to js and i just don't know how to get a rails variable passed into the script above in order to make the conditional work.

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