Question

在我的Laravel 5.7应用中使用spatie/laravel-tags plugin。

我担任tags的编辑者，以便管理员可以添加tags。但是，我需要对tags的唯一性进行验证。

常用的验证规则

   'name' => [
        'required',
        'string',
        'max:255',
        Rule::unique(with(new Tag)->getTableName())->ignore($tag_id),
    ],
    'order_column'         => 'nullable|integer',

在这里不起作用，因为字段采用json格式，例如：

{"en": "Drama"}

能否请您提示该验证的哪种方式？

已修改的2号区块在我的请求app/Http/Requests/TagRequest.php中，我编写了验证规则：

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\Request;
use App\Rules\TagUniqueness;


class TagRequest extends FormRequest
{
    public function authorize()
    {
        return true;
    }

    public function rules()
    {
        // $request= Request();

        return [
            'name' => [
                'required',
                'string',
                'max:255',
                new TagUniqueness,
            ],
            'order_column'         => 'nullable|integer',
        ];

    }
}

创建的规则app/Rules/TagUniqueness.php具有：

<?php

namespace App\Rules;

use Illuminate\Contracts\Validation\Rule;

class TagUniqueness implements Rule
{
    public function __construct()
    {
            $this->d( '<pre>TagUniqueness $_REQUEST::' . print_r( $_REQUEST, true ) );
    }

    public function passes($attribute, $value)
    {

        $this->d( '<pre>passes  $attribute::' . print_r( $attribute, true ) );
        $this->d( '<pre>passes  $value::' . print_r( $value, true ) );
        return false;

    }

    ...

我收到此错误：

 "message": "trim() expects parameter 1 to be string, object given",
    "exception": "ErrorException",
    "file": "/mnt/_work_sdb8/wwwroot/lar/Votes/vendor/laravel/framework/src/Illuminate/Validation/ValidationRuleParser.php",
    "line": 217,
    "trace": [
        {
            "function": "handleError",
            "class": "Illuminate\\Foundation\\Bootstrap\\HandleExceptions",
            "type": "->"
        },
        {
            "file": "/mnt/_work_sdb8/wwwroot/lar/Votes/vendor/laravel/framework/src/Illuminate/Validation/ValidationRuleParser.php",
            "line": 217,
            "function": "trim"
        },
        {
            "file": "/mnt/_work_sdb8/wwwroot/lar/Votes/vendor/laravel/framework/src/Illuminate/Validation/ValidationRuleParser.php",
            "line": 199,
            "function": "parseArrayRule",
            "class": "Illuminate\\Validation\\ValidationRuleParser",
            "type": "::"
        },
        {
            "file": "/mnt/_work_sdb8/wwwroot/lar/Votes/vendor/proengsoft/laravel-jsvalidation/src/Remote/Validator.php",
            "line": 161,
            "function": "parse",
            "class": "Illuminate\\Validation\\ValidationRuleParser",
            "type": "::"
        },
        {
            "file": "/mnt/_work_sdb8/wwwroot/lar/Votes/vendor/proengsoft/laravel-jsvalidation/src/Remote/Validator.php",
            "line": 144,
            "function": "purgeNonRemoteRules",
            "class": "Proengsoft\\JsValidation\\Remote\\Validator",
            "type": "->"
        },
        {
            "file": "/mnt/_work_sdb8/wwwroot/lar/Votes/vendor/proengsoft/laravel-jsvalidation/src/Remote/Validator.php",
            "line": 116,
            "function": "setRemoteValidation",
            "class": "Proengsoft\\JsValidation\\Remote\\Validator",
            "type": "->"
        },
        {

作为$ this-> d（我的调试方法，我看到TagUniqueness的构造函数的输出，但是传递的方法未调用，我无法定义此错误的原因。

怎么了？

谢谢！

如何使用spatie / laravel-tags插件检查标签的唯一性

0 个答案: