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28 lines
671 B
28 lines
671 B
module Util
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module UUID
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module_function
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DCODES = %W(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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def time_uuid(format: '%Y%m%d%H%M%S', suffix: 8)
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"#{Time.zone.now.strftime(format)}#{Random.rand(10**suffix).to_i}"
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end
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# 随机生成字符
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def generate_identifier(container, num, pre='')
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code = DCODES.sample(num).join
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if container == User
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while container.exists?(login: pre+code) do
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code = DCODES.sample(num).join
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end
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else
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while container.exists?(identifier: code) do
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code = DCODES.sample(num).join
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end
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end
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code
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end
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end
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end
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