Fix MutationAfterCastError on #attributes for records after casting

makandra · Jan 8, 2024 · 1e36f68 · 1e36f68
1 parent 31bea72
commit 1e36f68
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diff --git a/lib/active_type/util/unmutable_attributes.rb b/lib/active_type/util/unmutable_attributes.rb
@@ -10,6 +10,7 @@ module Util
     class UnmutableAttributes
 
       attr_reader :original_attributes
+      delegate :to_hash, to: :original_attributes
 
       def initialize(attributes)
         @original_attributes = attributes

diff --git a/spec/active_type/util_spec.rb b/spec/active_type/util_spec.rb
@@ -282,6 +282,13 @@ class AssociatedRecord < ActiveRecord::Base
           end.not_to raise_error
         end
 
+        it 'still allows to access the attributes of the original record after cast via #attributes' do
+          base_record = UtilSpec::BaseRecord.create!(persisted_string: 'foo')
+          ActiveType::Util.cast(base_record, UtilSpec::ExtendedRecord)
+
+          expect(base_record.attributes).to include('persisted_string' => 'foo')
+        end
+
         context 'with option force: true' do
           it 'will not prevent changing or saving it' do
             base_record = UtilSpec::BaseRecord.create!(:persisted_string => 'old value')