Module: Fetchable

Included in:
Decorator
Defined in:
lib/fetchable.rb,
lib/fetchable/version.rb

Defined Under Namespace

Classes: Decorator

Constant Summary collapse

VERSION = 
"0.1.1"

Instance Method Summary collapse

Instance Method Details

#fetch(key, not_found_value = no_default_given, &block) ⇒ Object 



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# File 'lib/fetchable.rb', line 2

def fetch(key, not_found_value = no_default_given, &block)
  if not_found_value != no_default_given && block
    raise ArgumentError.new("Cannot provide both a default arg and block to #fetch")
  end

  result = public_send(:[], key)

  if result.nil?
    default_value(key, not_found_value, &block)
  else
    result
  end
end