Module: RailsDefaults::Helpers

Defined in:
lib/rails-defaults.rb

Class Method Summary collapse

Class Method Details

.must_be_instance_of(obj, *classes) ⇒ Object 



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# File 'lib/rails-defaults.rb', line 6

def must_be_instance_of obj, *classes

  var= classes.map { |class_name|

    if obj.class <= class_name
      true
    else
      nil
    end

  }.compact

  if var.empty?
    raise ArgumentError,"invalid input object, must be instance from one of these or they subclasses class: #{classes.join(', ')}"
  end

end