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# File 'lib/promiscuous/subscriber/attributes.rb', line 4
def process
super
return unless process_attributes?
attributes.each do |attr|
attr = attr.to_s
optional = attr[-1] == '?'
attr = attr[0...-1] if optional
setter = "#{attr}="
if payload.has_key?(attr)
value = payload[attr]
old_value = instance.__send__(attr)
new_value = Promiscuous::Subscriber.process(payload[attr], :old_value => old_value)
instance.__send__(setter, new_value) if old_value != new_value
else
raise "Unknown attribute '#{attr}'" unless optional
end
end
end
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