Question

I come from a C# background where I usually re-raise exceptions with the original exception contained inside the parent exception. Is a similar concept available in Ruby? How do I detect and raise an exception while maintaining the context of the lower level exception?

Answer 1

Take a look at the tricks from the talk Exceptional Ruby by Avdi Grimm:

class MyError < StandardError
  attr_reader :original
  def initialize(msg, original=nil);
    super(msg);
    @original = original;
  end
end
# ...
rescue => error
  raise MyError.new("Error B", error)
end