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15 lines
418 B
15 lines
418 B
7 years ago
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# frozen_string_literal: true
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class UniqueUsernameValidator < ActiveModel::Validator
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def validate(account)
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return if account.username.nil?
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normalized_username = account.username.downcase.delete('.')
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scope = Account.where(domain: nil, username: normalized_username)
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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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