laravel 5.4 在请求验证之前修改数据

Question

我有我的自定义请求，它扩展了 Backpack CrudController。

现在我想覆盖 ValidatesWhenResolvedTrait 的 prepareForValidation，因为它看起来是修改传入数据的正确位置，但我不知道如何...

所以我的第一个问题是，我可以重写这个方法吗？它受保护 ...

protected function prepareForValidation()

我的第二个问题，如何修改我在 Request 或 FormRreuqest 对象上的输入？

这是我的 RequestClass

<?php

namespace App\Http\Requests;

use App\Http\Requests\Request;
use Config;

class DonationsRequest extends \Backpack\CRUD\app\Http\Requests\CrudRequest
{


    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        // only allow updates if the user is logged in
        return \Auth::check();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'name' => 'required|max:255',
            'email' => 'required|email',
            'dob' => 'required|date',
            'newsletter' => 'required|boolean',
            'country' => 'sometimes|required|in:'.implode(',', Config::get('validation.countries')),
            'street' => 'sometimes|required|string|max:255',
            'zip' => 'sometimes|required|string|between:4,5',
            'city' => 'sometimes|required|string|between:4,255',
            'amount' => 'required|numeric|between:1,'.Config::get('donations.max'),
            'type' => 'required|in:oo,monthly',
            'provider' => 'sometimes|string|nullable',
            'product_id' => 'sometimes|exists:products,id|nullable',
            'campaign_id' => 'required|exists:campaigns,id',
            'status' => 'sometimes|required|in:pending,canceled,success,error',
            'profile' => 'sometimes|string|regex:/^profile[0-9]+$/|nullable',
        ];
    }

    /**
     * Get the validation attributes that apply to the request.
     *
     * @return array
     */
    public function attributes()
    {
        return [
            //
        ];
    }

    /**
     * Get the validation messages that apply to the request.
     *
     * @return array
     */
    public function messages()
    {
        return [
            //
        ];
    }

    private function prepareForValidation()
    {

        dd('getValidatorInstance custom');

        $this->sanitizeInput();

        return parent::getValidatorInstance();
    }

    private function sanitizeInput()
    {

        dd('sanitizeInput custom');

        $data = $this->all();

        dd($data);

        // overwrite the newsletter field value to match boolean validation
        $data['newsletter'] = ($data['newsletter'] == 'true' || $data['newsletter'] == '1' || $data['newsletter'] == true) ? true : false;

        return $data;
    }

    private function validate() {
        dd('validate');
    }
}

如您所见，我首先尝试重写 getValidatorInstance 方法，因为这看起来像是对此的常见方法，但它没有被执行（所以没有被重写 - 受保护？).

Answer 1

虽然我没试过，但它似乎应该可以工作你可以覆盖 validationData from Illuminate\Foundation\Http\FormRequest class like.

/**
 * Get data to be validated from the request.
 *
 * @return array
 */
protected function validationData()
{
    $all = parent::validationData();
    //e.g you have a field which may be json string or array
    if (is_string($playerIDs = array_get($all, 'player_id')))
        $playerIDs = json_decode($playerIDs, true);

    $all['player_id'] = $playerIDs
    return $all;
}

或者你可以覆盖 all 方法 Illuminate\Http\Concerns\InteractsWithInput trait

/**
 * Get all of the input and files for the request.
 *
 * @return array
 */
public function all()
{
    $all = parent::all();
    //then do your operation
    if (is_string($playerIDs = array_get($all, 'player_id')))
        $playerIDs = json_decode($playerIDs, true);

    $all['player_id'] = $playerIDs
    return $all;
}

Answer 2

你能修改请求吗？

$request->merge(['field' => 'new value']);

Answer 3

好的，我找到错误的地方了。我确实拆分了前端请求和后端请求调用。因为我在处理后端请求，前端请求没有覆盖任何东西……所以这是我的错，那里没有错误，很抱歉浪费时间，但非常感谢社区！

Answer 4

嗯，我确定，这有助于修改输入，它对我有用。[laravel 5.4]

放置这个

$input['url'] = $url;
$this->replace($input);
dd($input);

在 listFormRequest 中。（如果您遵循上面使用的答案，请使用 $all 而不是 $input。

这仅更改输入，即使在控制器中也可用。您仍然需要找到一种方法将其插入数据库，或者做其他事情以使用修改后的输入以在 blade.

中使用它

laravel 5.4 在请求验证之前修改数据

laravel 5.4 modify data before validation in request

php

validation

laravel

laravel-5.4