lib/bright_serializer/inflector.rb in bright_serializer-0.1.1 vs lib/bright_serializer/inflector.rb in bright_serializer-0.2.0

@@ -26,7 +26,38 @@
 
     def dash(underscored_word)
       underscored_word.tr!('_', '-')
       underscored_word
     end
+
+    # File activesupport/lib/active_support/inflector/methods.rb, line 271
+    def constantize(camel_cased_word)
+      names = camel_cased_word.split('::')
+
+      # Trigger a built-in NameError exception including the ill-formed constant in the message.
+      Object.const_get(camel_cased_word) if names.empty?
+
+      # Remove the first blank element in case of '::ClassName' notation.
+      names.shift if names.size > 1 && names.first.empty?
+
+      names.inject(Object) do |constant, name|
+        if constant == Object
+          constant.const_get(name)
+        else
+          candidate = constant.const_get(name)
+          next candidate if constant.const_defined?(name, false)
+          next candidate unless Object.const_defined?(name)
+
+          # Go down the ancestors to check if it is owned directly. The check
+          # stops when we reach Object or the end of ancestors tree.
+          constant = constant.ancestors.each_with_object(constant) do |ancestor, const|
+            break const    if ancestor == Object
+            break ancestor if ancestor.const_defined?(name, false)
+          end
+
+          # owner is in Object, so raise
+          constant.const_get(name, false)
+        end
+      end
+    end
   end
 end