class RuboCop::Cop::Rails::Presence

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