[Rails5] Fix Arel::UpdateManager calls

In Rails 5.0 `Arel::UpdateManager.new` doesn't expect any parameters.

This commit makes the migration not pass any parameters if on Rails 5.0.

1 files changed, 2 insertions, 1 deletions

diff --git a/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb b/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb
index f73e4f6c99b..1db8c68626a 100644
--- a/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb
+++ b/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb
@@ -1,4 +1,5 @@
 class FixupEnvironmentNameUniqueness < ActiveRecord::Migration
+  include Gitlab::Database::ArelMethods
   include Gitlab::Database::MigrationHelpers
 
   DOWNTIME = true
@@ -41,7 +42,7 @@ class FixupEnvironmentNameUniqueness < ActiveRecord::Migration
 
     conflicts.each do |id, name|
       update_sql =
-        Arel::UpdateManager.new(ActiveRecord::Base)
+        arel_update_manager
           .table(environments)
           .set(environments[:name] => name + "-" + id.to_s)
           .where(environments[:id].eq(id))