module EnumeratedConstants

Mix-in that allows you to treat a module of related constants like a good ol' fashioned enum.

Constants

VERSION

Public Instance Methods

all() click to toggle source

# File lib/enumerated_constants.rb, line 8
def all
  @all ||= constants.map(&method(:const_get)).delete_if do |constant|
    constant.is_a?(Array)
  end.freeze
end

except(*names) click to toggle source

Return all but the constant name you pass @param name [Symbol,String] The name of the constant you don't want @return [Array] @all except the value of that constant

# File lib/enumerated_constants.rb, line 19
def except(*names)
  names = names.map(&:upcase).map(&:to_sym)
  values = names.map do |name|
    begin
      const_get(name)
    rescue NameError
      raise ArgumentError, "Constant #{name} does not exist"
    end
  end.compact
  all - values
end