Not creating class object - Ruby on Rails

Question

I am trying to create a User class in Ruby On Rails App, and when I call NETWORKING::User.new(1,"Testing") , it returns *** ArgumentError Exception: wrong number of arguments (2 for 0)

Not sure why?

class NETWORKING::User 
   mattr_writer :id, :name

 class << self

    def initialize(id, name)
        @id = id
        @fullname = name

    end

end
end

Why did you include class << self, what did you think that would accomplish here? — user229044
– user229044 ♦, Commented Mar 2, 2018 at 21:36

spickermann · Accepted Answer · 2018-03-03 06:17:05Z

2

class << self serves no purpose here except to break your code. Remove it:

class NETWORKING::User 
  attr_accessor :id, :name

  def initialize(id, name)
    @id = id
    @fullname = name
  end
end

edited Mar 3, 2018 at 6:17

spickermann

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answered Mar 2, 2018 at 21:34

user229044♦

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7 Comments

Wings2fly Over a year ago

But when I remove it and try to access the id using NETWORKING::User.id it shows undefined method.

user229044 Over a year ago

@Wings2fly That makes no sense at all. What should NETWORKING::User.id return? It seems like this is a fundamental misunderstanding in how OOP works.

Wings2fly Over a year ago

stackoverflow.com/questions/39694071/… Referred to the answer here.

Wings2fly Over a year ago

user = NETWORKING::User.new(1,"Test") ; puts user.id

user229044 Over a year ago

There is no instance of class << self in that link.

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