45 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| # == Schema Information
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| #
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| # Table name: invites
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| #
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| #  id         :bigint(8)        not null, primary key
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| #  user_id    :bigint(8)        not null
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| #  code       :string           default(""), not null
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| #  expires_at :datetime
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| #  max_uses   :integer
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| #  uses       :integer          default(0), not null
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| #  created_at :datetime         not null
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| #  updated_at :datetime         not null
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| #  autofollow :boolean          default(FALSE), not null
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| #  comment    :text
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| #
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| 
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| class Invite < ApplicationRecord
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|   include Expireable
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| 
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|   COMMENT_SIZE_LIMIT = 420
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| 
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|   belongs_to :user, inverse_of: :invites
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|   has_many :users, inverse_of: :invite, dependent: nil
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| 
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|   scope :available, -> { where(expires_at: nil).or(where(expires_at: Time.now.utc..)) }
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| 
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|   validates :comment, length: { maximum: COMMENT_SIZE_LIMIT }
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| 
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|   before_validation :set_code
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| 
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|   def valid_for_use?
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|     (max_uses.nil? || uses < max_uses) && !expired? && user&.functional?
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|   end
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| 
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|   private
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| 
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|   def set_code
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|     loop do
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|       self.code = ([*('a'..'z'), *('A'..'Z'), *('0'..'9')] - %w(0 1 I l O)).sample(8).join
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|       break if Invite.find_by(code: code).nil?
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|     end
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|   end
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| end
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