recurse in read_attribute we get caching / don't duplicate code

1 files changed, 2 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb
index d108de385f..dcc3d79de9 100644
--- a/activerecord/lib/active_record/attribute_methods/read.rb
+++ b/activerecord/lib/active_record/attribute_methods/read.rb
@@ -67,9 +67,8 @@ module ActiveRecord
         @attributes_cache.fetch(attr_name.to_s) { |name|
           column = @columns_hash.fetch(name) {
             return @attributes.fetch(name) {
-              if name == 'id'
-                primary_key = self.class.primary_key
-                @columns_hash[primary_key].type_cast(@attributes[primary_key])
+              if name == 'id' && self.class.primary_key != name
+                read_attribute(self.class.primary_key)
               end
             }
           }