Add support options of ordering about null values for PostgreSQL.
Add this line to your application's Gemfile:
gem 'order_with_null'And then execute:
$ bundle
Or install it yourself as:
$ gem install order_with_null
User.order(User.arel_table[:age].desc.nulls_last)
User.order(User.arel_table[:name].asc.nulls_first)
Product.order(Arel::Nodes::InfixOperation.new('*', Product.arel_table[:price], Product.arel_table[:quantity]).desc.nulls_last)
Product.order(Arel::Nodes::NullsFirst.new(Arel::Nodes::Descending.new(Product.arel_table[:quantity])))Bug reports and pull requests are accepted on GitHub at https://github.com/smoriwaki/order_with_null.