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module ISO3166
class Country
def mongoize
ISO3166::Country.mongoize(self)
end
class << self
# Convert an +ISO3166::Country+ to the data that is stored by Mongoid.
def mongoize(country)
if country.is_a?(self) && !country.data.nil?
country.alpha2
elsif send(:valid_alpha2?, country)
new(country).alpha2
end
end
# Get the object as it was stored with Mongoid, and instantiate an +ISO3166::Country+.
def demongoize(alpha2)
new(alpha2)
end
# Convert an +ISO3166::Country+ to the data that is stored by Mongoid.
def evolve(country)
mongoize(country)
end
private
def valid_alpha2?(country)
country.is_a?(String) && !ISO3166::Country.new(country).nil?
end
end
end
end
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