Codeigniter 验证错误：“无法访问与您的字段名称 Captcha 相对应的错误消息。（recaptcha）”

Question

我正在尝试将 Google 的 reCAPTCHA 添加到我的 Codeigniter Web 应用程序中。

但是我一直Unable to access an error message corresponding to your field name Captcha. (recaptcha)这个问题： Unable to access an error message corresponding to your field name Captcha. (recaptcha) Unable to access an error message corresponding to your field name Captcha. (recaptcha)

我尝试提交表单以抛出错误， $server_output['success']应该是FALSE因此执行$this->form_validation->set_message('recaptcha', 'Please redo the {field}.'); 但是 Codeigniter 似乎根本没有运行回调函数......

作为错误输出（除了标题中的错误消息），验证适用于其他所有内容：

The Username field is required. The Password field is required. The Password Confirmation field is required. The Email field is required.

我正在通过我的模型运行验证（遵循保持控制器苗条和模型肥胖的惯例）：

public function __construct()
{
    parent::__construct();
    $this->load->library('form_validation');
}

public function register_validation()
{
    /*
     * INITIALIZE FORM VALIDATION RULES
     */
    $this->form_validation->set_rules('username', 'Username',
        array(
            // REMOVED FOR PRIVACY REASONS.
        )
    );
    $this->form_validation->set_rules('password', 'Password',
        array(
            // REMOVED FOR PRIVACY REASONS.
            )
    );
    $this->form_validation->set_rules('password_confirmation', 'Password Confirmation',
        array(
            // REMOVED FOR PRIVACY REASONS.
            )
    );
    $this->form_validation->set_rules('email', 'Email',
        array(
            // REMOVED FOR PRIVACY REASONS.
        )
    );

    /*
     * SET CUSTOM VERIFICATION RULES:
     * 1. GOOGLE RECAPTCHA WIDGET
     */
    $this->form_validation->set_rules('g-recaptcha-response', 'Captcha', 'callback_recaptcha');

    /*
     * CHANGE ERROR MESSAGES FOR SOME RULES.
     */
    $this->form_validation->set_message('is_unique', 'The {field} has already been taken!');

    /*
     * RUN VALIDATION,
     * IF VALIDATION IS NOT PASSED --> RETURN FALSE.
     */
    if ($this->form_validation->run() === FALSE)
        return FALSE;
    /*
     * ELSE WHEN EVERYTHING PASSES VALIDATION AND RECAPTCHA,
     * TRY TO CREATE NEW USER.
     */
    else
    {
        /*
         * TRY TO CREATE NEW USER.
         */
        if ($this->create_user())
        {
            /*
             * SET FLASHDATA TO ALERT USER THAT
             * THE ACCOUNT HAS BEEN SUCCESSFULLY CREATED.
             */
            $this->session->account_created = TRUE;
            $this->session->mark_as_flash('account_created');
            return TRUE;
        }
        else
        {
            /*
             * THROW ERROR AND ALERT USER VIA FLASHDATA.
             */
            $this->session->account_created = FALSE;
            $this->session->mark_as_flash('account_created');
            return FALSE;
        }
    }
}

这是我在同一个类/模型中的 recaptcha 回调函数：

/*
 * RECAPTCHA FUNCTION
 */
public function recaptcha($data = '')
{
    /*
     * INITIALIZE VARIABLES.
     */
    $google_api_url = 'https://www.google.com/recaptcha/api/siteverify';
    $google_secret_key = 'REMOVED FOR PRIVACY REASONS';
    $ip = $this->input->ip_address();
    $response = $data;

    /*
     * INITIALIZE CURL.
     */
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $google_api_url);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS,
        http_build_query(array(
                'secret' => $google_secret_key,
                'response' => $response,
                'remoteip' => $ip,
            )
        )
    );
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

    /*
     * RUN CURL.
     */
    $server_output = curl_exec($curl);
    curl_close($curl);
    $server_output = json_decode($server_output, true);

    /*
     * CHECK RECAPTCHA SUCCESS
     */
    if ($server_output['success'])
        return TRUE;
    else
    {
        $this->form_validation->set_message('recaptcha', 'Please redo the {field}.');
        return FALSE;
    }
}

我究竟做错了什么？ 是不是因为我在模型中运行验证而不起作用？ 已经坚持了 2-3 个小时……我希望代码是可读的。

谢谢~

Answer 1

“无法访问与您的字段名称对应的错误消息”

我猜当字段没有值且没有必需规则时会显示上述错误：

尝试设置如下规则

$this->form_validation->set_rules('g-recaptcha-response', 'Captcha', 'required|callback_recaptcha');

或（对于最新版本的 CI）

$this->form_validation->set_rules(
        'g-recaptcha-response', /* Field */
        'Captcha',              /* Label */
         array(                 /* Rules */
                'required',
                array($this->your_model, 'recaptcha')
              )
);

或者

$this->form_validation->set_rules(
        'g-recaptcha-response', /* Field */
        'Captcha',              /* Label */
         array(                 /* Rules */
                'required',
                array('my_recaptcha', array($this->your_model, 'recaptcha'))
              ),
        array(                 /* Error lists */
              'my_recaptcha' => 'Invalid Recaptcha'
             )
);

在这里查看更多