是否可以创建并传递模型对象的实例，但不能将其保存在Ruby on Rails中？

Question

I would like to be able to create a variable that holds an instance of a model object User but not save it to the database. Is this possible? Right now when I a do the following it saves it to the database:

user = User.new
user.name = "John"
user.save

I would like to create a user variable that holds the previous information but not have to save it in the database. The reason is the function I need to use expects a User object and I don't want to save users yet at that point in the code.

Thanks

Answer 1

As Dave said, just don't save the user variable:

user = User.new(:name => "John")

Now you can still use methods by passing in the user variable, even though it isn't saved to the database:

puts "The user's name is: #{user.name}"

Answer 2

您可以将其保存在会话中： session[:user] = user 。