CODEWITHSUNDEEP
rubyclass
user2493615
user2493615

Reputation: 315

Is there a way to reset a class instance's initialized attribute to the value entered when the instance was created?

For example, I have:

class Camel
  attr_accessor :name, :meat_quality
  def initialize(name, meat_quality)
    name = @name
    meat_quality = @meat_quality
  end
end

And I initialize an instance carlos, and later change its @meat_quality value:

carlos = Camel.new("Carlos","orphan grade")

...

carlos.meat_quality = "public school grade"

Later, though, I need a way to refer to whatever was passed to @meat_quality when carlos was first initialized (namely "tough and stringy").

I will be changing @meat_quality multiple times, so I can't just use default values or make a variable like previous_quality.

Is this possible?

Upvotes: 0

Views: 663

Answers (1)

Peter Alfvin
Peter Alfvin

Reputation: 29419

There's nothing in Ruby that saves the initial value passed on, so nothing in Ruby that will let you automatically reset it. However, you can certainly save the value in an another instance variable and reset it as you wish, as in:

def initialize(..., meat_quality)
  ...
  @original_meat_quality = @meat_quality = meat_quality
end

def reset_meat_quality
  @meat_quality = @original_meat_quality
end

Upvotes: 2

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