mirror of https://github.com/tootsuite/mastodon
				
				
				
			
		
			
				
	
	
		
			15 lines
		
	
	
		
			411 B
		
	
	
	
		
			Ruby
		
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			411 B
		
	
	
	
		
			Ruby
		
	
	
# frozen_string_literal: true
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# See also: USERNAME_RE in the Account class
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class UniqueUsernameValidator < ActiveModel::Validator
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  def validate(account)
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    return if account.username.blank?
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    scope = Account.with_username(account.username).with_domain(account.domain)
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    scope = scope.where.not(id: account.id) if account.persisted?
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    account.errors.add(:username, :taken) if scope.exists?
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  end
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end
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