How to add dynamically generated inline javascript using Rails 3.1 and Haml

Question

I am using Rails 3.1 and Haml. What is the best way to add inline javascript that is generated in something such as a form_for block. I tried the following:

In layouts/application.html.haml,

...
:javascript
  yield(:jstemplates)
...

And in my form_for block,

...
= content_for :jstemplates do
  = "var my_var='#{generate_template(form, :my_field)}'"
...

Instead, I had to do the following:

...
:javascript
  #{@my_javascript}
...

and

...
- @my_javascript = capture_haml do
  var my_var='#{generate_template(form,:my_field)}'
...

Philip Paetz · Accepted Answer · 2011-12-30 15:04:22Z

1

i usually have the following on the bottom of my application layout:

:javascript
  $(document).ready(function() {
    #{yield :javascript}
  });

when i have view-specific javascript i write it directly into the view like so:

- content_for :javascript do
  :plain
    doSomeFunkyStuffWithRailsParameters( #{@whatever.title} );

answered Dec 30, 2011 at 15:04

Philip Paetz

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