Fixed safe_load_path? method definition to avoid runtime errors (#4157)

apps/dashboard/config/application.rb

@@ -47,6 +47,11 @@ class Application < Rails::Application
       config.paths["app/views"].unshift ::Configuration.config_root.join("views").to_s
     end
 
+    # Determine if this path is safe to load. I.e., are all the files root owned.
+    def safe_load_path?(path)
+      path.exists? && path.children.all? { |f| File.stat(f).uid.zero? }
+    end
+
     # Enable installed plugins only if configured by administrator
     plugins_dir = Pathname.new(::Configuration.plugins_directory)
     if plugins_dir.directory?
@@ -69,10 +74,5 @@ class Application < Rails::Application
         config.paths["app/views"].unshift(views.to_s) if safe_load_views
       end
     end
-
-    # Determine if this path is safe to load. I.e., are all the files root owned.
-    def safe_load_path?(path)
-      path.children.all? { |f| File.stat(f).uid.zero? }
-    end
   end
 end