Defining and using route.version method instead of route.options[:version].

Author: texpert

lib/grape-swagger/doc_methods/path_string.rb

@@ -13,8 +13,8 @@ def build(route, options = {})
           # set item from path, this could be used for the definitions object
           item = route.path.gsub(%r{/{(.+?)}}, '').split('/').last.singularize.underscore.camelize || 'Item'
 
-          if route.options[:version] && options[:add_version]
-            route.path.sub!('{version}', route.options[:version].to_s)
+          if route.version && options[:add_version]
+            route.path.sub!('{version}', route.version.to_s)
           else
             route.path.sub!('/{version}', '')
           end

lib/grape-swagger/grape/route.rb

@@ -1,7 +1,8 @@
 # backwards compatibility for Grape < 0.16.0
 module Grape
   class Route
-    [:path, :prefix, :entity, :description, :settings, :params, :headers, :http_codes].each do |m|
+    [:path, :prefix, :entity, :description, :settings, :params, :headers, :http_codes, :version]
+      .each do |m|
       define_method m do
         send "route_#{m}"
       end