13 lines
326 B
Ruby
13 lines
326 B
Ruby
module Dcodes
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DCODES = %W(1 2 3 4 5 6 7 8 9 a b c f e f g h i j k l m n o p q r s t u v w x y z)
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extend ActiveSupport::Concern
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def generate_dcode(field, num, pre='')
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code = DCODES.sample(num).join
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while self.class.exists?("#{field}": pre+code) do
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code = DCODES.sample(num).join
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end
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code
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end
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end |