module Orderpriority

# File lib/orderpriority.rb, line 30
      def is_priority_order_args(args)
              is_priority_order = true;
  args.each do |arg|
    next unless arg.is_a?(Hash)
    arg.each do |_key, value|
                              unless self.class.const_get(:VALID_DIRECTIONS).include?(value)
                                      is_priority_order&&= true;
                              else
                                      is_priority_order = false;
                              end
    end
  end
  return is_priority_order
end

# File lib/orderpriority.rb, line 5
def priority_order(*args)
        check_if_method_has_arguments!(:priority_order, args)
        if is_priority_order_args(args)
                ret = "CASE"
                index = 1
                args.each do |arg|
                        arg.each do |k,v|
                                k = k.to_s
                                unless klass.column_names.include?(k)
                                        raise ArgumentError, "#{k} is not a valid column for #{table.name}"
                                end
                                k="#{table.name}.#{table[k].name}"
                                ret << " WHEN #{k} = '#{v}' then #{index}"
                                ret << " WHEN #{k} like '#{v}%' then #{index += 1}"
                                ret << " WHEN #{k} like '%#{v}' then #{index += 2}"
                                ret << " WHEN #{k} like '%#{v}%' then #{index += 3}"
                                index+=1
                        end
                end
                ret << " ELSE #{index} END"
                args = [ret]
        end  
        spawn.order!(*args)
end