fluent interface program in Ruby
- by intern
we have made the following code and trying to run it.
class Numeric
def gram
self
end
alias_method :grams, :gram
def of(name)
ingredient = Ingredient.new(name)
ingredient.quantity=self
return ingredient
end
end
class Ingredient
def initialize(n)
@@name= n
end
def quantity=(o)
@@quantity = o
return @@quantity
end
def name
return @@name
end
def quantity
return @@quantity
end
end
e= 42.grams.of("Test")
a= Ingredient.new("Testjio")
puts e.quantity
a.quantity=90
puts a.quantity
puts e.quantity
the problem which we are facing in it is that the output of
puts a.quantity
puts e.quantity
is same even when the objects are different. what we observed is that second object i.e 'a' is replacing the value of the first object i.e. 'e'. the output is coming out to be
42
90
90
but the output required is
42
90
42
can anyone suggest why is it happening? it is not replacing the object as object id's are different..only the values of the objects are replaced.
