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# File 'lib/publishable.rb', line 9
def publishable(options = {})
column_name = (options[:on] || :published_at).to_s
if respond_to?(:scope)
scope :published, lambda { |time = Time.now|
where("#{column_name} IS NOT NULL AND #{column_name} <= ?", time.utc)
}
scope :unpublished, lambda { |time = Time.now|
where("#{column_name} IS NULL OR #{column_name} > ?", time.utc)
}
end
class_eval <<-EVIL, __FILE__, __LINE__ + 1
def published?(time = Time.now)
#{column_name} ? #{column_name} <= time : false
end
def publish(time = Time.now)
self.#{column_name} = time unless published?(time)
end
def publish!(time = Time.now)
publish(time) && (!respond_to?(:save) || save)
end
EVIL
end
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