Stanko K.R.
42 lines
861 B
Ruby
42 lines
861 B
Ruby
class MagicLink < ApplicationRecord
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CODE_LENGTH = 6
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EXPIRATION_TIME = 15.minutes
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belongs_to :identity
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scope :active, -> { where(expires_at: Time.current...) }
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scope :stale, -> { where(expires_at: ..Time.current) }
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before_validation :generate_code, on: :create
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before_validation :set_expiration, on: :create
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validates :code, uniqueness: true, presence: true
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class << self
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def consume(code)
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active.find_by(code: Code.sanitize(code))&.consume
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end
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def cleanup
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stale.delete_all
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end
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end
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def consume
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destroy
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identity
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end
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private
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def generate_code
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self.code ||= loop do
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candidate = Code.generate(CODE_LENGTH)
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break candidate unless self.class.exists?(code: candidate)
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end
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end
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def set_expiration
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self.expires_at ||= EXPIRATION_TIME.from_now
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end
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end
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