Merge pull request #19 from disbelief/constantize-worker_class-in-mid…

…dleware

Rely on Sidekiq's String#constantize extension instead of rolling our own

lib/sidekiq-unique-jobs/middleware/client/unique_jobs.rb

@@ -48,27 +48,12 @@ def call(worker_class, item, queue)
 
         # Attempt to constantize a string worker_class argument, always 
         # failing back to the original argument.
-        # Duplicates Rails' String.constantize logic for non-Rails cases.
         def worker_class_constantize(worker_class)
           if worker_class.is_a?(String)
-            if worker_class.respond_to?(:constantize)
-              worker_class.constantize
-            else
-              # duplicated logic from Rails 3.2.13 ActiveSupport::Inflector
-              # https://github.com/rails/rails/blob/9e0b3fc7cfba43af55377488f991348e2de24515/activesupport/lib/active_support/inflector/methods.rb#L213
-              names = worker_class.split('::')
-              names.shift if names.empty? || names.first.empty?
-              constant = Object
-              names.each do |name|
-                constant = constant.const_defined?(name) ? constant.const_get(name) : constant.const_missing(name)
-              end
-              constant
-            end
+            worker_class.constantize rescue worker_class
           else
             worker_class
           end
-        rescue
-          worker_class
         end
 
       end