Ayudame

user.rb

def validate(record)

    if !record.email.match(Account::VALID_EMAIL_REGEX)
      record.errors[:email] << malformed_field('email', "Email no válido: #{record.email} ")
    elsif record.id.nil? # new user
      if Account.find_by(email: record.email).present?
        record.errors[:email] << malformed_field('email', "Email duplicado: #{record.email}")
        # return false
      end
    else
      if !Account.where('email = ? and identifier != ?', record.email, record.identifier).empty?
        record.errors[:email] << malformed_field('username', "Email duplicado: #{email}")
        # return false
      end
    end
  end