Class: Object

Inherits:
BasicObject
Defined in:
lib/document_mapper/core_ext/object.rb

Overview

Backported from ActiveSupport 3.1. Should be removed once the 3.1 version is out.

Instance Method Summary collapse

Instance Method Details

#in?(another_object) ⇒ Boolean

Returns true if this object is included in the argument. Argument must be any object which responds to #include?. Usage:

characters = ["Konata", "Kagami", "Tsukasa"]
"Konata".in?(characters) # => true

This will throw an ArgumentError if the argument doesn’t respond to #include?.

Returns:

  • (Boolean) 


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# File 'lib/document_mapper/core_ext/object.rb', line 13

def in?(another_object)
  another_object.include?(self)
rescue NoMethodError
  raise ArgumentError.new("The parameter passed to #in? must respond to #include?")
end