Object.const_get and Rails - cutting off parent module names

Question

I have the following code to pull out and instantiate Rails controllers:

def get_controller(route)
  name = route.requirements[:controller]
  return if name.nil?         


        

Answer 1

First of all, this code is superfluous:

if name.match(/\//)
  controller_name = name.split('/').map(&:camelize).join('::')
else
  controller_name = name.camelize
end

The only string would perfectly handle both cases:

controller_name = name.split('/').map(&:camelize).join('::')

Then, you probably want to handle namespaces properly:

n_k = controller_name.split('::')
klazz = n_k.last

namespace_object = if n_k.length == 1
                     Object
                   else
                     Kernel.const_get(n_k[0..-2].join('::'))
                   end

controller = namespace_object.const_get("#{klazz}Controller")

Hope that helps.