UserEmail::prepareInputForAdd PHP Method

    function prepareInputForAdd($input)
    {
        // Check email validity
        if (!isset($input['email']) || empty($input['email'])) {
            return false;
        }
        // First email is default
        if (countElementsInTable($this->getTable(), ['users_id' => $input['users_id']]) == 0) {
            $input['is_default'] = 1;
        }
        return parent::prepareInputForAdd($input);
    }