I have a Cappuccino app that I am integrating with a Rails backend. A key feature of the app is authentication which is managed entirely by rails. The way I set it up is that the cappuccino js conditionally executes if the user is logged in, like this:
<% if signed_in? %>
<div id="cappuccino-body">
<script type="text/javascript">
document.write("Hello World")
</script>
</div>
<% end %>
where signed_in? is a rails method that returns a boolean value reflecting whether the user is authenticated.
The issue I am having is two fold, first, I put this script into the show user view, when I drop the cappuccino .j files into app/views/users directory, they are not detected. Where in the rails directory structure do I drop these files in? Is it in public? or in assets?
Second is can I take the embedded ruby conditional statement above, and use it in a separate erb file? (one that isn't associated with any of the standard views but still has access to the rails methods in the backend)
You should put Cappuccino's JavaScript file(s) into /vendor/assets/javascripts.
/app/assets/javascripts or /public/javascripts would be fine to, but since it's not your application's code /vendor/assets/javascripts is the place to go.
For the second question, I'm not really sure what you want to achieve with such a setup, but using partials may serve you well: http://guides.rubyonrails.org/layouts_and_rendering.html#using-partials