Php 如何在Nova中创建依赖验证规则？

我为Nova中的资源定义了如下字段：

Select::make('Type')
    ->options([
        'video' => 'Video',
        'download' => 'Download',
        ])
    ->rules('required'),    

File::make('File', 'file_name')
    ->disk('local')
    ->path('/files')

我试图根据类型字段的值为文件字段设置不同的验证规则。例如，类型为下载接受文档mimes，最大大小为1mb，而如果设置为视频接受视频文件mimes，最大大小为30mb

我还没有真正做到这一点

我已经查看过了，但都没有或将帮助我，因为我无法从它们访问类型字段的值

类似地，我曾考虑过像扩展一个对象那样扩展NovaRequest对象，但这不会进行Nova应用的前端验证

---

有什么方法可以实现我所缺少的吗？

也许您需要使用一个伟大的包名nova dependency container。您可以在novapackage上阅读使用方法。注:

• 将文件php.ini行

  upload\u max\u filesize=2M

  更改为

  upload\u max\u filesize=30M

• 使用此链接定义MIME类型：

这是我的文档Nova资源代码。快乐编码，如果你需要，问我

<?php

namespace App\Nova;

use Laravel\Nova\Fields\ID;
use Laravel\Nova\Fields\Text;
use Laravel\Nova\Fields\File;
use Laravel\Nova\Fields\Select;
use Illuminate\Http\Request;
use Laravel\Nova\Http\Requests\NovaRequest;
use Epartment\NovaDependencyContainer\HasDependencies;
use Epartment\NovaDependencyContainer\NovaDependencyContainer;

class Document extends Resource
{
    use HasDependencies;
    /**
     * The model the resource corresponds to.
     *
     * @var string
     */
    public static $model = 'App\Document';

    /**
     * The single value that should be used to represent the resource when being displayed.
     *
     * @var string
     */
    public static $title = 'id';

    /**
     * The columns that should be searched.
     *
     * @var array
     */
    public static $search = [
        'id',
    ];

    /**
     * Get the fields displayed by the resource.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function fields(Request $request)
    {
        return [
            ID::make()->sortable(),
            Select::make('Type','type')
            ->options([
                'video' => 'Video',
                'download' => 'Download',
                ])
            ->rules('required'),
            NovaDependencyContainer::make([
                File::make('Video File','file_name')
                ->storeOriginalName('file_name')
                ->rules('required','mimes:mpga,mp2,mp2a,mp3,m2a,m3a,mp4,flv','max:30000')  //unit max is Kb
            ])->dependsOn('type', 'video'),
            NovaDependencyContainer::make([
                File::make('Document File', 'file_name')
                ->storeOriginalName('file_name')
                ->rules('required','mimes:jpeg,png,jpg,doc,docx,pdf','max:1000') 
            ])->dependsOn('type', 'download'),
        ];
    }

    /**
     * Get the cards available for the request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function cards(Request $request)
    {
        return [];
    }

    /**
     * Get the filters available for the resource.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function filters(Request $request)
    {
        return [];
    }

    /**
     * Get the lenses available for the resource.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function lenses(Request $request)
    {
        return [];
    }

    /**
     * Get the actions available for the resource.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function actions(Request $request)
    {
        return [];
    }
}

---

我现在通过John Beales提供的教程了解了这一点，他同样抱怨Nova没有自动接收Laravel表单请求

1：为Nova资源创建一个扩展FormRequest的请求：

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;


class StoreResourceRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        // Users authorized to make the request are:
        // - users updating themselves.
        // - staff
        // - guests creating a new user.


        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {

        $rules = self::ruleGetter($this);


        if(empty($this->user())) {
            $rules = array_merge_recursive($rules, self::creationRuleGetter($this));
        } else {
            $rules = array_merge_recursive($rules, self::updateRuleGetter($this));
        }

        return $rules;
    }

    public static function ruleGetter( $request, $rule = null ) {

        $rules = [
            'type' =>  ['required',Rule::in(['video', 'download'])],
        ];

        if($request['type'] == 'download'){
            $rules['file_name'] = ['required','mimes:jpeg,png,jpg,doc,docx,pdf','max:1000'];
        } 

        if($request['type'] == 'video'){
            $rules['file_name'] = ['required','mimes:mp4','max:50000'];
        }

        if(!empty($rule)) {
            if(isset($rules[$rule])) {
                return $rules[$rule];
            }
            return '';
        }
        return $rules;
    }

    public static function creationRuleGetter( $request, $rule = null ) {
        $rules = [

        ];


        if(!empty($rule)) {
            if(isset($rules[$rule])) {
                return $rules[$rule];
            }
            return '';
        }
        return $rules;

    }

    public static function updateRuleGetter( $request, $rule = null ) {


        $rules = [

        ];

        if(!empty($rule)) {
            if(isset($rules[$rule])) {
                return $rules[$rule];
            }
            return '';
        }
        return $rules;
    }

}

namespace App\Nova;

use App\Http\Requests\StoreResourceRequest;

//...

public function fields(Request $request)
{
    return [
        //...

        Select::make('Type')
        ->options([
            'video' => 'Video',
            'download' => 'Download',
        ])
        ->rules(StoreResourceRequest::ruleGetter($request, 'type')),

        File::make('File', 'file_name')
        ->rules(StoreResourceRequest::ruleGetter($request, 'file_name'))

    ];
}

2:更新Nova资源以加载这些规则：

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;


class StoreResourceRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        // Users authorized to make the request are:
        // - users updating themselves.
        // - staff
        // - guests creating a new user.


        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {

        $rules = self::ruleGetter($this);


        if(empty($this->user())) {
            $rules = array_merge_recursive($rules, self::creationRuleGetter($this));
        } else {
            $rules = array_merge_recursive($rules, self::updateRuleGetter($this));
        }

        return $rules;
    }

    public static function ruleGetter( $request, $rule = null ) {

        $rules = [
            'type' =>  ['required',Rule::in(['video', 'download'])],
        ];

        if($request['type'] == 'download'){
            $rules['file_name'] = ['required','mimes:jpeg,png,jpg,doc,docx,pdf','max:1000'];
        } 

        if($request['type'] == 'video'){
            $rules['file_name'] = ['required','mimes:mp4','max:50000'];
        }

        if(!empty($rule)) {
            if(isset($rules[$rule])) {
                return $rules[$rule];
            }
            return '';
        }
        return $rules;
    }

    public static function creationRuleGetter( $request, $rule = null ) {
        $rules = [

        ];


        if(!empty($rule)) {
            if(isset($rules[$rule])) {
                return $rules[$rule];
            }
            return '';
        }
        return $rules;

    }

    public static function updateRuleGetter( $request, $rule = null ) {


        $rules = [

        ];

        if(!empty($rule)) {
            if(isset($rules[$rule])) {
                return $rules[$rule];
            }
            return '';
        }
        return $rules;
    }

}

namespace App\Nova;

use App\Http\Requests\StoreResourceRequest;

//...

public function fields(Request $request)
{
    return [
        //...

        Select::make('Type')
        ->options([
            'video' => 'Video',
            'download' => 'Download',
        ])
        ->rules(StoreResourceRequest::ruleGetter($request, 'type')),

        File::make('File', 'file_name')
        ->rules(StoreResourceRequest::ruleGetter($request, 'file_name'))

    ];
}

上述方法适用于这两种类型的验证，并将正确的值存储在数据库中。Nova可以正常与文件交互

---

遗憾的是，Nova没有内置此功能，必须复制验证逻辑。

此功能在前端工作-但是验证规则仅在第一次文件输入时应用-即，即使显示下载字段，验证规则也要求它是视频。我想这是因为它们有相同的输入名称是的，我测试过。它可以上传mp3文件或pdf文件！如果您想上传更多文件，请将它们添加到nova dependency容器中！当我使用你的代码时，它可以用来上传视频（因为先上传视频），但上传一个文档会产生错误，错误必须是所列的视频mimetype。是否选择文档或视频；已应用视频规则。感谢您继续执行此操作！这种方法将正确的值存储在数据库中，但根本不进行验证，Nova在创建文件后无法编辑/下载/删除文件（因为它正在尝试/file\u name\u视频和/file\u name\u文档，而不是/file\u name）