diff options
| -rw-r--r-- | activerecord/lib/active_record/relation/merger.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index ac41d0aa80..fa968ac5af 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -13,6 +13,13 @@ module ActiveRecord @hash = hash end + # It allows to do a join, and filter by a scope on the joined model: + # class Account < ActiveRecord::Base + # # Returns all the accounts that have unread messages. + # def self.with_unread_messages + # joins(:messages).merge( Message.unread ) + # end + # end def merge Merger.new(relation, other).merge end |