1 files changed, 6 insertions, 0 deletions
diff --git a/db/migrate/20151209145909_migrate_ci_emails.rb b/db/migrate/20151209145909_migrate_ci_emails.rb
index ebf0e7d264f..964dde841ad 100644
--- a/db/migrate/20151209145909_migrate_ci_emails.rb
+++ b/db/migrate/20151209145909_migrate_ci_emails.rb
@@ -2,6 +2,9 @@ class MigrateCiEmails < ActiveRecord::Migration
   include Gitlab::Database
 
   def up
+    # This inserts a new service: BuildsEmailService
+    # It also "manually" constructs the properties (JSON-encoded)
+    # Migrating all ci_projects e-mail related columns
     execute(
       'INSERT INTO services (project_id, type, created_at, updated_at, active, push_events, issues_events, merge_requests_events, tag_push_events, note_events, build_events, properties) ' \
       "SELECT projects.id, 'BuildsEmailService', ci_services.created_at, ci_services.updated_at, #{true_value}, #{false_value}, #{false_value}, #{false_value}, #{false_value}, #{false_value}, #{true_value}, " \
@@ -13,4 +16,7 @@ class MigrateCiEmails < ActiveRecord::Migration
       "WHERE ci_services.type = 'Ci::MailService' AND ci_services.active"
     )
   end
+
+  def down
+  end
 end