Removing static_files warnings in Rails 5

Issue #19

app/models/no_cms/blocks/block.rb

@@ -55,7 +55,28 @@ def fields_configuration
       ##
       # If we don't have a globalized model yet we return our temporary layout
       def layout
-        globalized_model.nil? ? @layout : globalized_model.layout
+        # Since respond_to_missing? has been reimplemented in
+        # NoCms::Blocks::Concerns::SerializingFields we need to first check that
+        # we have the foreign key to access the globalized_model association
+        #
+        # This is due to the empty translations Globalize creates sometimes that
+        # only have locale.
+        #
+        # If we don't check then we will throw a non defined attribute
+        # exception.
+
+        # First we check wether we don't respond to the foreign key of the
+        # globalize model association
+        if !respond_to?(self.class.reflections.symbolize_keys[:globalized_model].foreign_key) ||
+          globalized_model.nil? # and then that the globalized model is nil
+
+          # In any of these cases we return our stored layout
+          @layout
+        else
+          # If we can access to the globalized_model, then we return its
+          # information
+          globalized_model.layout
+        end
       end
 
       include  NoCms::Blocks::Concerns::SerializingFields

spec/dummy/config/environments/test.rb

@@ -13,8 +13,13 @@
   config.eager_load = false
 
   # Configure static asset server for tests with Cache-Control for performance.
-  config.serve_static_files  = true
-  config.static_cache_control = "public, max-age=3600"
+  if Rails.version > "5"
+    config.public_file_server.enabled = true
+    config.public_file_server.headers = { 'Cache-Control' => 'public, max-age=3600' }
+  else
+    config.serve_static_files  = true
+    config.static_cache_control = "public, max-age=3600"
+  end
 
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true