Orders Aggregator

gistfile1.rb

# Orders Aggregator

class BreadType
  attr_accessor :type
	def initialize(type)
		@type = type
	end
	
	def eql?(other)
		@type = other.type
	end
	
	def hash
		@type.hash
	end
	
	def to_s
		@type
	end
end

class Sandwich
	attr_accessor :name, :type

	def initialize (name, type)
		@name = name
		@type = type
	end
	
	def eql?(other)
		@name = other.name #&& @type = other.type # buggy and I cannot resolve, so I decided to comment
	end
	
	def hash
		@name.hash ^ @type.hash
	end
	
	def to_s
		@name.to_s << " : " << @type.to_s
	end
end

balady = BreadType.new "Balady"
shamy = BreadType.new "Shamy"

# Talaat
talaat = []
talaat << Sandwich.new(:Ta3mya, balady) << Sandwich.new(:Batates_omlete, balady)
# Hewedy
hewedy = []
2.times {
	hewedy << Sandwich.new(:Ta3mya, balady)
}
# Ahmad
ahmad = []
ahmad << Sandwich.new(:Swabe3_Salada, balady) << Sandwich.new(:Fol_Eskandrany, balady)
# Khalid
khalid = []
khalid << Sandwich.new(:Ta3mya_Eskandrany, balady)
# Alaa
alaa = []
alaa << Sandwich.new(:Ta3mya_Eskandrany, balady)
# Hatem
hatem = []
3.times {
	hatem << Sandwich.new(:Ta3mya, shamy)
}

total = talaat + hewedy + ahmad + khalid + alaa + hatem

counts = Hash.new(0)
total.each { |name| counts[name] += 1 }

puts "Aggregation: "
counts.each { |k, v|
	puts k.to_s << " ::" << v.to_s
}