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Start your free trialsimon lavery
17,485 PointsAny idea why this isnt working?
module Inventoryable
module ClassMethods
def create(attributes)
object = new(attributes)
@instances.push(object)
return object
end
def instances
@instances ||= []
end
end #ClassMethods
def stock_count
@stockcount ||= 0
end
def stock_count=(number)
@stockcount = number
end
def in_stock?
stock_count > 0
end
end #Inventoryable
class Shirt
extend Inventoryable::ClassMethods
include Inventoryable
attr_accessor :attributes
def initialize(attributes)
@attributes = attributes
end
end #Shirt
class Trousers
attr_accessor :attributes
def initialize(attributes)
@attributes = attributes
end
end # Trousers
class Accessory
attr_accessor :attributes
def initialize(attributes)
@attributes = attributes
end
end #Accessory
shirt1 = Shirt.create(name: "mtf", size: "L")
shirt1.stock_count=(10)
puts "Shirt 1 stock count: %s" % shirt1.stock_count
puts "Shirt 1 is currently in stock: %s " % shirt1.in_stock?
3 Answers
James Kirkpatrick
25,001 PointsAlthough you've probably figured it out by now, I thought I'd post this in case others are have the same problem.
On line 8, should not be an instance variable. Instead, line 8 should be
instances.push(object)
That will resolve your error.
Angela Visnesky
20,927 PointsHi Simon. You are missing
def self.included(klass)
klass.extend(ClassMethods)
end
which goes before your module ClassMethods.
simon lavery
17,485 PointsThat was' nt in this video but i did try it and im still getting the same error (undefined method push for nil class), Think i need to start this bit of the course again .