php - Laravel 验证 : check why validator failed

Question

是否有办法检查验证器是否因 unique 规则而失败？

$rules = array(
            'email_address' => 'required|email|unique:users,email',
            'postal_code' => 'required|alpha_num',
        );

        $messages = array(
            'required' => 'The :attribute field is required',
            'email' => 'The :attribute field is required',
            'alpha_num' => 'The :attribute field must only be letters and numbers (no spaces)'
        );

        $validator = Validator::make(Input::all(), $rules, $messages);

        if ($validator->fails()) {

通俗地说，我基本上想知道:“验证失败是因为 email_address 不是唯一的吗？”

Answer 1

检查返回的失败规则数组中的特定规则

if ($validator->fails()) {

    $failedRules = $validator->failed();

    if(isset($failedRules['email_address']['Unique'])) {

    ...