class RuboCop::Cop::Rails::Presence

def on_if(node)
  return if ignore_if_node?(node)
  redundant_receiver_and_other(node) do |receiver, other|
    unless ignore_other_node?(other) || receiver.nil?
      add_offense(node, message: message(node, receiver, other))
    end
  end
  redundant_negative_receiver_and_other(node) do |receiver, other|
    unless ignore_other_node?(other) || receiver.nil?
      add_offense(node, message: message(node, receiver, other))
    end
  end
end