Stanko K.R.
34 lines
661 B
Ruby
34 lines
661 B
Ruby
class Account::JoinCode < ApplicationRecord
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CODE_LENGTH = 12
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belongs_to :account
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scope :active, -> { where("usage_count < usage_limit") }
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before_create :generate_code, if: -> { code.blank? }
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def redeem_if(&block)
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transaction do
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increment!(:usage_count) if block.call(account)
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end
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end
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def active?
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usage_count < usage_limit
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end
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def reset
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generate_code
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self.usage_count = 0
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save!
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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 = SecureRandom.base58(CODE_LENGTH).scan(/.{4}/).join("-")
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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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end
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