auth-add-repo.swift

public func add(entity: User) throws {

    entity.salt = String(randomWithLength: 14)
    entity.password = try entity.password.generateHash(salt: entity.salt)

    if let errors = self.userValidator.getValidationErrors(entity) {
        throw ValidationsError(errors: errors)
    }

    try self.usersRepository.add(entity: entity)
    try self.userRolesRepository.set(roles: entity.roles, forUserId: entity.id)
}