active_record_liquid_reflection.rb

# Liquid methods reflection for ActiveRecord
# Wanna know the defined liquid_methods for a given model?
#
# Example usage:
#
#   class Person < ActiveRecord::Base
#     liquid_methods :first_name, :last_name
#   end
#
#   Person.find(123).reflect_on_liquid_methods
#   => ["first_name", "last_name"]

class ActiveRecord::Base
  def reflect_on_liquid_methods
    to_liquid.methods - Liquid::Drop.instance_methods
  end
end