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# File 'lib/bitroles.rb', line 9
def has_roles(*args)
if args.any?
roles_mask = 'roles_mask'
if args.last.is_a?(Hash)
options = args.pop if args.last.is_a?(Hash)
roles_mask = options[:mask_column].to_s
end
roles = args.map(&:to_s)
class_eval " def self.roles\n \#{roles}\n end\n\n def roles=(roles)\n roles = (roles.map(&:to_s) & \#{roles}).map { |r| 2**\#{roles}.index(r) }.sum\n self.\#{roles_mask} = roles\n end\n\n def roles\n \#{roles}.reject { |r| ((\#{roles_mask} || 0) & 2**\#{roles}.index(r)).zero? }\n end\n\n def has_role?(role)\n roles.include? role.to_s\n end\n EVAL\n\n roles.each do |role|\n class_eval <<-EVAL, __FILE__, __LINE__\n scope :\#{role.pluralize}, -> { where(['\#{roles_mask} & ? > 0', 2**\#{roles}.index('\#{role}')]) }\n\n def is_\#{role}?\n has_role? '\#{role}'\n end\n\n def \#{role}=(val)\n if val\n self.roles += ['\#{role}'] unless is_\#{role}?\n else\n self.roles -= ['\#{role}'] if is_\#{role}?\n end\n end\n EVAL\n end\n end\nend\n", __FILE__, __LINE__
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