Use relation#delete_all for Model.delete_all

activerecord/lib/active_record/base.rb

@@ -939,11 +939,7 @@ def destroy_all(conditions = nil)
       # Both calls delete the affected posts all at once with a single DELETE statement. If you need to destroy dependent
       # associations or call your <tt>before_*</tt> or +after_destroy+ callbacks, use the +destroy_all+ method instead.
       def delete_all(conditions = nil)
-        if conditions
-          arel_table.where(Arel::SqlLiteral.new(construct_conditions(conditions, scope(:find)))).delete
-        else
-          arel_table.delete
-        end
+        arel_table.where(construct_conditions(conditions, scope(:find))).delete_all
       end
 
       # Returns the result of an SQL statement that should only include a COUNT(*) in the SELECT part.

activerecord/lib/active_record/relation.rb

@@ -225,8 +225,7 @@ def destroy_all
     end
 
     def delete_all
-      @relation.delete
-      reset
+      @relation.delete.tap { reset }
     end
 
     def loaded?