Test for equality. Resource are equal if and only if other is the same object or is an instance of the same class, is not +new?+, and has the same id.

Examples

ryan = Person.create(:name => 'Ryan')
jamie = Person.create(:name => 'Jamie')

ryan == jamie
# => false (Different name attribute and id)

ryan_again = Person.new(:name => 'Ryan')
ryan == ryan_again
# => false (ryan_again is new?)

ryans_clone = Person.create(:name => 'Ryan')
ryan == ryans_clone
# => false (Different id attributes)

ryans_twin = Person.find(ryan.id)
ryan == ryans_twin
# => true

Source Code

# File active_resource/base.rb, line 595
def ==(other)
  other.equal?(self) || (other.instance_of?(self.class) && !other.new? && other.id == id)
end