Provide :touch option to save() to accommodate saving without updating timestamps. [#18202]

activerecord/CHANGELOG.md

@@ -1,3 +1,10 @@
+*   Provide :touch option to save() to accommodate saving without updating
+    timestamps.
+
+    Fixes #18202
+
+    *Dan Olson*
+
 *   Provide a more helpful error message when an unsupported class is passed to
     `serialize`
 

activerecord/lib/active_record/callbacks.rb

@@ -298,7 +298,7 @@ module ActiveRecord
 
   private
 
-    def create_or_update #:nodoc:
+    def create_or_update(*) #:nodoc:
       _run_save_callbacks { super }
     end
 

activerecord/lib/active_record/persistence.rb

@@ -116,8 +116,8 @@ module ActiveRecord
     #
     # Attributes marked as readonly are silently ignored if the record is
     # being updated.
-    def save(*)
-      create_or_update
+    def save(*args)
+      create_or_update(*args)
     rescue ActiveRecord::RecordInvalid
       false
     end
@@ -138,8 +138,8 @@ module ActiveRecord
     #
     # Attributes marked as readonly are silently ignored if the record is
     # being updated.
-    def save!(*)
-      create_or_update || raise(RecordNotSaved.new(nil, self))
+    def save!(*args)
+      create_or_update(*args) || raise(RecordNotSaved.new(nil, self))
     end
 
     # Deletes the record in the database and freezes this instance to
@@ -498,9 +498,9 @@ module ActiveRecord
       relation
     end
 
-    def create_or_update
+    def create_or_update(*args)
       raise ReadOnlyRecord, "#{self.class} is marked as readonly" if readonly?
-      result = new_record? ? _create_record : _update_record
+      result = new_record? ? _create_record : _update_record(*args)
       result != false
     end
 

activerecord/lib/active_record/timestamp.rb

@@ -57,8 +57,8 @@ module ActiveRecord
       super
     end
 
-    def _update_record(*args)
-      if should_record_timestamps?
+    def _update_record(*args, touch: true, **options)
+      if touch && should_record_timestamps?
         current_time = current_time_from_proper_timezone
 
         timestamp_attributes_for_update_in_model.each do |column|
@@ -67,7 +67,7 @@ module ActiveRecord
           write_attribute(column, current_time)
         end
       end
-      super
+      super *args
     end
 
     def should_record_timestamps?

activerecord/test/cases/persistence_test.rb

@@ -878,4 +878,35 @@ class PersistenceTest < ActiveRecord::TestCase
     assert_equal "Welcome to the weblog", post.title
     assert_not post.new_record?
   end
+
+  class SaveTest < ActiveRecord::TestCase
+    self.use_transactional_fixtures = false
+
+    def test_save_touch_false
+      widget = Class.new(ActiveRecord::Base) do
+        connection.create_table :widgets, force: true do |t|
+          t.string :name
+          t.timestamps null: false
+        end
+
+        self.table_name = :widgets
+      end
+
+      instance  = widget.create!({
+        name: 'Bob',
+        created_at: 1.day.ago,
+        updated_at: 1.day.ago
+      })
+
+      created_at = instance.created_at
+      updated_at = instance.updated_at
+
+      instance.name = 'Barb'
+      instance.save!(touch: false)
+      assert_equal instance.created_at, created_at
+      assert_equal instance.updated_at, updated_at
+    ensure
+      ActiveRecord::Base.connection.drop_table :widgets
+    end
+  end
 end