Rails 5.2 application fixes

- Rename before_filter → before_action across all controllers
- Fix string conditions in validators to lambda syntax (node.rb)
- Fix publish_draft!: move staged slug/parent logic outside draft guard,
  use move_to_child_of for parent changes, add nil guard for no-op calls
- Fix update_unique_names_of_children: use parent_id traversal instead
  of lft/rgt descendants (awesome_nested_set 3.x lft/rgt update bug)
- Fix unique_path to return Array instead of String
- Fix Occurrence.delete_all syntax for Rails 5
- Fix Page.find_with_outdated_translations: use includes instead of all
- Fix outdated_translations?: use find instead of splat array

1 files changed, 1 insertions, 1 deletions

diff --git a/app/controllers/content_controller.rb b/app/controllers/content_controller.rb
index 4248239..876bccf 100644
--- a/app/controllers/content_controller.rb
+++ b/app/controllers/content_controller.rb
@@ -2,7 +2,7 @@ class ContentController < ApplicationController
 
   # Public
 
-  before_filter :find_page
+  before_action :find_page
 
   # This is the method that renders most of the the public content. It recieves
   # a :locale and a :page_path parameter through the params hash. It looks up