如何优雅的使用 laravel 的 validator验证方法


						web 开发过程中经常会需要进行参数验证，laravel 中我们常用 validator 或者 request 这两种方法来进行验证，但是这两种验证都不是很方便进行自定义提示信息，自定义验证规则，所以下面来介绍一种很方便的用法：

新建抽象类







<?php



namespace App\Http\Validators;



use Validator;



abstract class AbstractValidator

{



 /**

  * Validator

  *

  * @var \Illuminate\Validation\Factory

  */

 protected $validator;



 /**

  * Validation data key => value array

  *

  * @var array

  */

 protected $data = array();



 /**

  * Validation errors

  *

  * @var array

  */

 protected $errors = array();



 /**

  * Validation rules

  *

  * @var array

  */

 protected $rules = array();



 /**

  * Validation messages

  *

  * @var array

  */

 protected $messages = array();



 /**

  * Validation codes

  *

  * @var array

  */

 protected $codes = array();



 public function __construct(array $data)

 {

  $this->data = $data;

  $this->before();

  $this->validator = Validator::make($this->data, $this->rules, $this->messages);

  $this->after();

 }



 /**

  * Set data to validate

  *

  * @return validator

  */

 public function getValidator()

 {

  return $this->validator;

 }



 /**

  * Set data to validate

  *

  * @return $this

  */

 public function with(array $data)

 {

  $this->data = $data;

  $this->before();

  $this->validator = $this->validator->make($this->data, $this->rules, $this->messages);

  $this->after();

  return $this;

 }



 /**

  * Validation passes or fails

  *

  * @return boolean

  */

 public function passes()

 {

  if ($this->validator->fails()) {

   $this->errors = $this->validator->messages();



   return false;

  }



  return true;

 }



 /**

  * Return errors, if any

  *

  * @return array

  */

 public function errors()

 {

  return $this->errors;

 }



 /**

  * Return errors codes, if any

  *

  * @return array

  */

 public function getCodes()

 {

  return $this->codes;

 }



 /**

  * getRules

  *

  * @return array

  */

 public function getRules()

 {

  return $this->rules;

 }



 /**

  * getData

  *

  * @return array

  */

 public function getData()

 {

  return $this->data;

 }



 /**

  * getErrors

  *

  * @return array

  */

 public function getErrors()

 {

  return $this->errors;

 }



 /**

  * getMessages

  *

  * @return array

  */

 public function getMessages()

 {

  return $this->messages;

 }



 /**

  * setRule

  *

  * @param string $key

  * @param string $value

  *

  * @return $this

  */

 public function setRule($key, $value)

 {

  $this->rules[$key] = $value;



  return $this;

 }



 /**

  * emptyRules

  *

  * @return $this

  */

 public function emptyRules()

 {

  $this->rules = array();



  return $this;

 }



 /**

  * sometimes

  *

  * @param string  $attribute

  * @param string|array $rules

  * @param callable  $callback

  *

  * @return $this

  */

 public function sometimes($attribute, $rules, callable $callback)

 {

  $this->validator->sometimes($attribute, $rules, $callback);



  return $this;

 }



 /**

  * resolver

  *

  * @param Closure $resolver

  *

  * @return $this

  */

 public function resolver(Closure $resolver)

 {

  Validator::resolver($resolver);



  return $this;

 }



 /**

  * replacer

  *

  * @param Closure $resolver

  *

  * @return $this

  */

 public function replacer($replace, Closure $resolver)

 {

  Validator::replacer($replace, $resolver);



  return $this;

 }



 /**

  * extendImplicit

  *

  * @param Closure $resolver

  *

  * @return $this

  */

 public function extendImplicit($extendImplicit, Closure $resolver)

 {

  Validator::extendImplicit($extendImplicit, $resolver);



  return $this;

 }



 /**

  * extend

  *

  * @param string   $rule

  * @param \Closure|string $extension

  * @param string   $message

  *

  * @return $this

  */

 public function extend($rule, $extension, $message = null)

 {

  Validator::extend($rule, $extension, $message);



  return $this;

 }



 /**

  * before (extend(),resolver())

  *

  * @return $this

  */

 public function before()

 {

 }



 /**

  * after(sometimes())

  *

  * @return $this

  */

 public function after()

 {

 }

}







新建中间件







<?php



namespace App\Http\Middleware;



use Closure;

use \Illuminate\Http\Request;



class ValidateAdminMiddleware

{

 /**

  * This namespace is applied to the controller routes in your routes file.

  *

  * In addition, it is set as the URL generator's root namespace.

  *

  * @var string

  */

 protected $namespace = 'App\Http\Validators';



 /**

  * Handle an incoming request.

  *

  * @param \Illuminate\Http\Request $request

  * @param \Closure     $next

  *

  * @return mixed

  */

 public function handle(Request $request, Closure $next, $validator = null)

 {

  if ($request->isMethod('POST')) {

   $type = $request->segment(1);

   if ($validator) {

    $validator = $this->namespace . '\\' . studly_case($type) . '\\' . studly_case($validator) . 'Validator';

    $validator = new $validator($request->all());



    if (!$validator->passes()) {

     if ($request->isAjax()) {

      return $validator->errors()->first();

     } else {

      return redirect()->back()

      ->withErrors($validator->getValidator())

      ->withInput();

     }

    }

   }

  }

  return $next($request);

 }

}





新建 TestTestValidator







<?php



namespace App\Http\Validators\Admin;



use App\Http\Validators\AbstractValidator;



class TestValidator extends AbstractValidator

{

 /**

  * Validation rules

  *

  * @var Array

  */

 protected $rules = array(

  'name' => ['required', 'test', 'min:1'],

 );



 /**

  * Validation messages

  *

  * @var Array

  */

 protected $messages = array(

  'name.required' => '必填',

  'name.min' => '最少1个字符',

  'name.test' => '测试',

 );



 /**

  * 自定义验证规则或者扩展Validator类

  */

 public function before()

 {

  $this->extend('test', function ($attribute, $value, $parameters) {

   return bool;

  });

 }

}



路由中如何使用







Route::post('/', ['middleware' => ['valiAdmin:Test'], 'uses' => 'IndexController@test']);



具体使用可以自行配置~

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持中文源码网。