This is the code I currently have:
:javascript
// do something
- if current_user.role? :client
:javascript
//do something else
It's obviously not very clean since I'm repeating the :javascript haml filter. I'd like to avoid that, but I don't know how to properly write a Ruby "if" statement inside a HAML :javascript block.
I know how to interpolate variables with #{}, but how do you do the same for whole if/for/etc. statements?
I do this:
if(#{params[:param_to_check_for].blank? ? "true" : "false"})
In the above case, the condition is
params[:param_to_check_for].blank?.
It renders the JavaScript as either: if(false) or if(true)
I haven't tried it, but I'd think you could do
:javascript
// do something
- if current_user.role? :client
="//do something else"
(As in the second example here.)
For a very short bit of javascript, you could also try
:javascript
// do something
#{current_user.role? :client ? "//do something else" : ""}
I've interpolated the Ruby/HAML variable into explicit JS true or false for JS condition like this:
$("#cancel").click( function() {
if (#{ !!my_flag_variable })
window.location.href = "./";
else
$("#dialog").hide();
} );
I've accomplished this via a = yield :foot_scripts call in my layout, then then:
= if condition
- content_for :foot_scripts do
- render :partial => "page_specific_javascript"
in my views — that way I can ensure the Javascript is executed exactly where I want it to be in the DOM (AFTER everything else), and maintain it in a separate file, which is vastly cleaner. Getting script out of your view files? GOOD!
That's pretty much right.
The other option is you could put it in a .js.erb partial and render that from your haml view.
Then you can just do
// do something
<% if condition == true %>
// do something else
<% end %>
