Episode 2 - class

Hello David,
You have this nice example of recommended use of class << self as follows:

class Dave
  @count = 0
  class << self
    attr_accessor :count
  end
  def initialize()
    Dave.count += 1
  end
end

puts "There are #{Dave.count} instances of Dave." 
d1 = Dave.new
d2 = Dave.new
puts "There are #{Dave.count} instances of Dave." 

Now following the logic that you explained before this to turn this into self.method syntax, I did the following:

class Dave
  @count = 0
  self.attr_accessor :count
  def initialize()
    Dave.count += 1
  end
end

puts "There are #{Dave.count} instances of Dave." 
d1 = Dave.new
d2 = Dave.new
puts "There are #{Dave.count} instances of Dave." 

But when I run this, I get the following error message:

main.rb:3: private method `attr_accessor’ called for Dave:Class (NoMethodError)

I am not sure if I understand what is going on here. Why can’t I use the parallel but clearer syntax that you explained before this.

By the way, brilliant example of include and extend in ActiveRecord setting. You are a really good teacher.
Bharat