Rename `default_attributes` to `_default_attributes`

It is internal use only. This is to avoid conflicting with users' method
names. Fixes #17458

2 files changed, 3 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index 9ab27bbac5..a0382f99e6 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -266,7 +266,7 @@ module ActiveRecord
     #   # Instantiates a single new object
     #   User.new(first_name: 'Jamie')
     def initialize(attributes = nil, options = {})
-      @attributes = self.class.default_attributes.dup
+      @attributes = self.class._default_attributes.dup
 
       init_internals
       initialize_internals_callback
diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb
index 48e82d28d9..31ff08a89d 100644
--- a/activerecord/lib/active_record/model_schema.rb
+++ b/activerecord/lib/active_record/model_schema.rb
@@ -247,10 +247,10 @@ module ActiveRecord
       # Returns a hash where the keys are column names and the values are
       # default values when instantiating the AR object for this table.
       def column_defaults
-        default_attributes.to_hash
+        _default_attributes.to_hash
       end
 
-      def default_attributes # :nodoc:
+      def _default_attributes # :nodoc:
         @default_attributes ||= attributes_builder.build_from_database(
           columns_hash.transform_values(&:default))
       end