Serialization handler methods on PaperTrail::Model::ClassMethods should fall back to current serializer set under Config

CHANGELOG.md

@@ -12,6 +12,8 @@ PaperTrail::Rails::Engine.eager_load!
     [#354](https://github.com/airblade/paper_trail/issues/354) / [#131](https://github.com/airblade/paper_trail/issues/131) -
     Versions should be built with `after_` callbacks so the timestamp field for a version can be forced to match the
     corresponding timestamp in the database for the state persistence of a change to the base (versioned) model.
+  - Methods handling serialized attributes should fallback to the currently set Serializer instead of always falling back
+    to `PaperTrail::Serializers::YAML`.
 
 ## 3.0.5
 

lib/paper_trail/has_paper_trail.rb

@@ -115,7 +115,8 @@ module PaperTrail
 
         serialized_attributes.each do |key, coder|
           if attributes.key?(key)
-            coder = PaperTrail::Serializers::YAML unless coder.respond_to?(:dump) # Fall back to YAML if `coder` has no `dump` method
+            # Fall back to current serializer if `coder` has no `dump` method
+            coder = PaperTrail.serializer unless coder.respond_to?(:dump)
             attributes[key] = coder.dump(attributes[key])
           end
         end
@@ -127,7 +128,7 @@ module PaperTrail
 
         serialized_attributes.each do |key, coder|
           if attributes.key?(key)
-            coder = PaperTrail::Serializers::YAML unless coder.respond_to?(:dump)
+            coder = PaperTrail.serializer unless coder.respond_to?(:dump)
             attributes[key] = coder.load(attributes[key])
           end
         end
@@ -140,7 +141,8 @@ module PaperTrail
 
         serialized_attributes.each do |key, coder|
           if changes.key?(key)
-            coder = PaperTrail::Serializers::YAML unless coder.respond_to?(:dump) # Fall back to YAML if `coder` has no `dump` method
+            # Fall back to current serializer if `coder` has no `dump` method
+            coder = PaperTrail.serializer unless coder.respond_to?(:dump)
             old_value, new_value = changes[key]
             changes[key] = [coder.dump(old_value),
                             coder.dump(new_value)]
@@ -154,7 +156,7 @@ module PaperTrail
 
         serialized_attributes.each do |key, coder|
           if changes.key?(key)
-            coder = PaperTrail::Serializers::YAML unless coder.respond_to?(:dump)
+            coder = PaperTrail.serializer unless coder.respond_to?(:dump)
             old_value, new_value = changes[key]
             changes[key] = [coder.load(old_value),
                             coder.load(new_value)]