Redmine 3.4.4

db/migrate/072_add_enumerations_position.rb

@@ -0,0 +1,15 @@
+class AddEnumerationsPosition < ActiveRecord::Migration
+  def self.up
+    add_column(:enumerations, :position, :integer, :default => 1) unless Enumeration.column_names.include?('position')
+    Enumeration.all.group_by(&:opt).each do |opt, enums|
+      enums.each_with_index do |enum, i|
+        # do not call model callbacks
+        Enumeration.where({:id => enum.id}).update_all(:position => (i+1))
+      end
+    end
+  end
+
+  def self.down
+    remove_column :enumerations, :position
+  end
+end