Maybe/app/helpers/chats_helper.rb

module ChatsHelper
  def chat_frame
    :sidebar_chat
  end

  def chat_view_path(chat)
    return new_chat_path if params[:chat_view] == "new"
    return chats_path if chat.nil? || params[:chat_view] == "all"

    chat.persisted? ? chat_path(chat) : new_chat_path
  end
end