Rails file loading?/module including

Question

I try to set up helper in app/helperspath.

So, for test purpose, I did this:

#app/helpers/somehelper.rb
class SomeHelper
  def some
    return true
  end
end

I included this line in one of my controllers:

test=SomeHelper.new

That raises uninitialized constant SomeHelper error.

I tried 2 things:

In cofing/application.rb

config.autoload_paths += Dir["#{config.root}/helpers/**/"]

Didn't work.

Then I tried this:

In application_controller

 include SomeHelper

Still getting error.

How do I load helper (or any other folder) into my application load path?

It's either that you should name the file some_helper.rb or you should restart the server... — bo-oz
– bo-oz, Commented Nov 26, 2015 at 16:33
the include is not necessary and I think the helpers are autoloaded. BTW, in Rails all helpers are modules. So you could consider putting those PORO's in a seperate dir, as long as they are a child of the /app directory, they will be autoloaded. — bo-oz
– bo-oz, Commented Nov 26, 2015 at 16:35

ddgd · Accepted Answer · 2015-11-26 17:03:47Z

1

You do not need to manually include or autoload anything, rails uses naming conventions to locate and load the file for you.

When rails encounters a new class, in your case SomeHelper, it will automatically attempt to load some_helper.rb

So all you have to do is put an underscore in the file name of your helper:

#app/helpers/some_helper.rb

answered Nov 26, 2015 at 17:03

ddgd

1,7371 gold badge15 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Don't forget that SomeHelper also needs to be a module