example.rb

class MyClass
  def foo
    @foo
  end

  def initialize(foo)
    @foo = foo
  end

  def bar
    'bar'
  end

  def baz
    'baz'
  end

  def thud
    'thud'
  end

  def garply
    'garply'
  end

  def full_name
    # str = "#{foo}"
    str = foo.to_s
    str << " #{bar}" if baz.nil? || (!baz.nil? && baz.include?('blarp'))
    str << " #{thud}"
    str << " - #{garply}" unless garply.nil?
    str
  end
end

my_class = MyClass.new('foo')
puts my_class.full_name
puts my_class.full_name
puts my_class.full_name
puts my_class.full_name
puts my_class.foo