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# File 'lib/devise_referable/referral.rb', line 18
def acts_as_referral(options = {})
class_eval <<-EOV
include Devise::Referable::Referral::InstanceMethods
def self.referrer_types
User.referrer_types
end
def self.lookup_referrer(token)
unless token.blank?
referrer_types.map{ |type| type.to_s.classify.constantize }.each do |klass|
ref = klass.find_by_referrer_token(token)
return ref unless ref.nil?
end
end
return nil
end
def self.from_token(token)
sender = lookup_referrer(token)
if sender
self.create do |ref|
ref.referrer = sender
end
end
end
belongs_to :referrer, :polymorphic => true
belongs_to :recipient, :class_name => 'User'
before_create :generate_token
EOV
end
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