Move a user's award emoji to the ghost user

... when the user is destroyed.

1. Normally, for a given awardable and award emoji name, a user is only allowed
   to create a single award emoji.

2. This validation needs to be removed for ghost users, since:

   - User A and User B have created award emoji - with the same name and against
     the same awardable
   - User A is deleted. Their award emoji is moved to the ghost user
   - User B is deleted. Their award emoji needs to be moved to the ghost user.
     However, this breaks the uniqueness validation, since the ghost user is
     only allowed to have one award emoji of a given name for a given awardable

1 files changed, 5 insertions, 0 deletions

diff --git a/app/services/concerns/users/migrate_to_ghost_user.rb b/app/services/concerns/users/migrate_to_ghost_user.rb
index 5d1f0ff57d1..76335e45e54 100644
--- a/app/services/concerns/users/migrate_to_ghost_user.rb
+++ b/app/services/concerns/users/migrate_to_ghost_user.rb
@@ -23,6 +23,7 @@ module Users::MigrateToGhostUser
       migrate_merge_requests(user)
       migrate_notes(user)
       migrate_abuse_reports(user)
+      migrate_award_emoji(user)
     end
 
     user.reload
@@ -45,4 +46,8 @@ module Users::MigrateToGhostUser
   def migrate_abuse_reports(user)
     AbuseReport.where(reporter_id: user.id).update_all(reporter_id: ghost_user.id)
   end
+
+  def migrate_award_emoji(user)
+    user.award_emoji.update_all(user_id: ghost_user.id)
+  end
 end