Laravel 5请求-更改数据 [英] Laravel 5 Request - altering data

问题描述

我遇到一个实例，我需要更改需要验证的数据，即，当没有提交任何数据块时，请从标题中创建一个数据，然后验证它是否唯一.

I have come across an instance where I need to alter the data that needs to be validated i.e. when no slug has been submitted, create one from the title and then validate that it is unique.

请求具有方法replace()，该方法应该替换请求上的输入数据，但似乎无法正常工作.谁能对此有所启发?这就是我所拥有的:

The request has a method replace() which is supposed to replace the input data on the request but it doesn't appear to work. Can anyone shine a light on this? This is what I have:

<?php namespace Purposemedia\Pages\Http\Requests;

use Dashboard\Http\Requests\Request;
use Illuminate\Auth\Guard;

class PageRequest extends Request {

    /**
     * [authorize description]
     * @return {[type]} [description]
     */
    public function authorize( Guard $auth) {
        return true;
    }

    /**
     * [rules description]
     * @return {[type]} [description]
     */
    public function rules() {
        // Get all data from request
        $data = $this->request->all();
        if( $data['slug'] === '' ) {
            // if the slug is blank, create one from title data
            $data['slug'] = str_slug( $data['title'], '-' );
            // replace the request data with new data to validate
            $this->request->replace( $data );
        }
        return [

            'title' => 'required|min:5|max:255',
            'slug' => 'min:5|max:255|alpha_dash|unique:pages,slug' . $this->getSegmentFromEnd(),

        ];
    }

}

推荐答案

您应该在formatInput方法中进行操作.您通过此方法返回的数据将用于验证器检查:

You should do it in formatInput method. Data you return in this method will be used for validator to check:

例如:

protected function formatInput()
{
    $data = $this->all();
    if( $data['slug'] === '') {
        // if the slug is blank, create one from title data
        $data['slug'] = str_slug( $data['title'], '-' );
    }

    return $data;
}

编辑

此方法是2个月前在Laravel中使用的(我仍在使用此版本)，这很奇怪，它被删除了.

This method was in Laravel 2 months ago (I'm still using this version), that's quite strange it was removed.

将上述方法更改为:

public function all()
{
    $data = parent::all();
    if( $data['slug'] === '') {
        // if the slug is blank, create one from title data
        $data['slug'] = str_slug( $data['title'], '-' );
    }

    return $data;
}

EDIT2

我把整个工作的TestRequest类放在这里.我发送空数据，并且由于修改了all()方法，即使是空数据，验证仍通过，因为我手动设置了这些数据进行验证.如果删除此all()方法并发送空数据，我当然会显示错误

I put here the whole working TestRequest class. I send empty data and because of modified all() method even if empty data, validation passes because I manually set those data to validate. If I remove this all() method and send empty data of course I will get errors displayed

<?php namespace App\Http\Requests;

use App\Http\Requests\Request;

class TestRequest extends Request {

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            //
            'title' => 'required|min:2|max:255',
            'slug' => 'min:2|max:255'
        ];
    }

    public function response(array $errors){
        dd($errors);
    }

    public function all(){
        $data = parent::all();
        $data['title'] = 'abcde';
        $data['slug'] = 'abcde';
        return $data;
    }

}

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