Remove private verify readonly attr method

This method was added to be shared between update_attribute and
update_column in 50725cec397d4fa0ecf1dda4e6ae845a993f1ba7, but since
update_attribute was removed, and update_column has changed to delegate
to update_columns, the method is not used anywhere anymore.

Also remove "key.to_s" conversion when raising readonly error, since
the key is being interpolated.

1 files changed, 1 insertions, 5 deletions

diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index 593fed5a85..6b4b9bd103 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -218,7 +218,7 @@ module ActiveRecord
       raise ActiveRecordError, "can not update on a new record object" unless persisted?
 
       attributes.each_key do |key|
-        raise ActiveRecordError, "#{key.to_s} is marked as readonly" if self.class.readonly_attributes.include?(key.to_s)
+        raise ActiveRecordError, "#{key} is marked as readonly" if self.class.readonly_attributes.include?(key.to_s)
       end
 
       attributes.each do |k,v|
@@ -391,9 +391,5 @@ module ActiveRecord
       @new_record = false
       id
     end
-
-    def verify_readonly_attribute(name)
-      raise ActiveRecordError, "#{name} is marked as readonly" if self.class.readonly_attributes.include?(name)
-    end
   end
 end