On Tuesday, November 6, 2012 8:49:16 PM UTC, scottc wrote:
>
>
>
> I want to be able to display the results of this method on a View
> called index.html.erb, so I include the following code in the
> index_helper.rb file:
>
> module IndexHelper
> require 'HelloWorld'
> end
>
> Also, I include the following code on the view index.html.erb:
>
> <%= @howdy %>
>
> I've read where I need to include the following line in the /config/
> application.rb file:
>
> config.autoload_paths += %W(#{config.root}/lib
>
> However, my preference is to load this module only when the View
> renders the page, not when the Application loads. What am I missing?
>
>
You're not so much missing what the lib folder does as misunderstanding
what modules do. As an aside, loading stuff on demand isn't thread safe so
usually best avoided in production.
Just requiring a file doesn't do anything other than load that file. If you
wanted to include a module then you'd need to do
module IndexHelper
include HelloWorld
end
in fact in your controller you could
helper HelloWorld
instead. Even this won't cause @howdy to be set - that would only be set
when that hello method is called.
Fred
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