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web 開發過程中經常會需要進行參數驗證，laravel 中我們常用 validator 或者 request 這兩種方法來進行驗證，但是這兩種驗證都不是很方便進行自定義提示信息，自定義驗證規則，所以下面來介紹一種很方便的用法：
新建抽象類
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<?php
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namespace App\Http\Validators;
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use Validator;
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abstract class AbstractValidator
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{
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/**
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- Validator
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- @var \Illuminate\Validation\Factory
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*/
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protected $validator;
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/**
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- Validation data key => value array
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- @var array
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*/
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protected $data = array();
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/**
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- Validation errors
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- @var array
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*/
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protected $errors = array();
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/**
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- Validation rules
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- @var array
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*/
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protected $rules = array();
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/**
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- Validation messages
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- @var array
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*/
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protected $messages = array();
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/**
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- Validation codes
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- @var array
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*/
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protected $codes = array();
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public function __construct(array $data)
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{
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$this->data = $data;
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$this->before();
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$this->validator = Validator::make($this->data, $this->rules, $this->messages);
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$this->after();
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}
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/**
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- Set data to validate
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- @return validator
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*/
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public function getValidator()
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{
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return $this->validator;
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}
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/**
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- Set data to validate
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- @return $this
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*/
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public function with(array $data)
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{
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$this->data = $data;
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$this->before();
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$this->validator = $this->validator->make($this->data, $this->rules, $this->messages);
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$this->after();
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return $this;
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}
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/**
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- Validation passes or fails
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- @return boolean
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*/
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public function passes()
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{
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if ($this->validator->fails()) {
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$this->errors = $this->validator->messages();
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return false;
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}
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return true;
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}
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/**
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- Return errors, if any
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- @return array
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*/
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public function errors()
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{
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return $this->errors;
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}
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/**
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- Return errors codes, if any
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- @return array
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*/
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public function getCodes()
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{
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return $this->codes;
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}
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/**
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- getRules
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- @return array
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*/
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public function getRules()
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{
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return $this->rules;
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}
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/**
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- getData
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- @return array
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*/
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public function getData()
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{
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return $this->data;
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}
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/**
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- getErrors
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- @return array
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*/
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public function getErrors()
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{
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return $this->errors;
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}
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/**
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- getMessages
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- @return array
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*/
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public function getMessages()
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{
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return $this->messages;
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}
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/**
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- setRule
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- @param string $key
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- @return $this
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*/
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public function setRule($key, $value)
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{
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$this->rules[$key] = $value;
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return $this;
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}
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/**
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- emptyRules
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- @return $this
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*/
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public function emptyRules()
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{
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$this->rules = array();
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return $this;
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}
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/**
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- sometimes
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- @param string $attribute
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- @return $this
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*/
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public function sometimes($attribute, $rules, callable $callback)
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{
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$this->validator->sometimes($attribute, $rules, $callback);
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return $this;
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}
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/**
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- resolver
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- @param Closure $resolver
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- @return $this
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*/
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public function resolver(Closure $resolver)
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{
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Validator::resolver($resolver);
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return $this;
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}
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/**
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- replacer
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- @param Closure $resolver
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- @return $this
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*/
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public function replacer($replace, Closure $resolver)
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{
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Validator::replacer($replace, $resolver);
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return $this;
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}
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/**
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- extendImplicit
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- @param Closure $resolver
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- @return $this
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*/
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public function extendImplicit($extendImplicit, Closure $resolver)
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{
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Validator::extendImplicit($extendImplicit, $resolver);
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return $this;
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}
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/**
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- extend
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- @param string $rule
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- @return $this
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*/
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public function extend($rule, $extension, $message = null)
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{
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Validator::extend($rule, $extension, $message);
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return $this;
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}
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/**
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- before (extend(),resolver())
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- @return $this
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*/
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public function before()
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{
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}
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/**
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- after(sometimes())
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- @return $this
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*/
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public function after()
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{
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}
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}
新建中間件
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<?php
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namespace App\Http\Middleware;
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use Closure;
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use \Illuminate\Http\Request;
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class ValidateAdminMiddleware
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{
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/**
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- This namespace is applied to the controller routes in your routes file.
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- In addition, it is set as the URL generator's root namespace.
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- @var string
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*/
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protected $namespace = 'App\Http\Validators';
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/**
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- Handle an incoming request.
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- @param \Illuminate\Http\Request $request
23 - @param \Closure $next
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- @return mixed
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*/
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public function handle(Request $request, Closure $next, $validator = null)
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{
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if ($request->isMethod('POST')) {
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$type = $request->segment(1);
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if ($validator) {
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$validator = $this->namespace . '\' . studly_case($type) . '\' . studly_case($validator) . 'Validator';
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$validator = new $validator($request->all());
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if (!$validator->passes()) {
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if ($request->isAjax()) {
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return $validator->errors()->first();
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} else {
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return redirect()->back()
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->withErrors($validator->getValidator())
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->withInput();
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}
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}
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}
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}
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return $next($request);
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}
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}
新建 TestTestValidator
view sourceprint?
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<?php
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namespace App\Http\Validators\Admin;
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use App\Http\Validators\AbstractValidator;
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class TestValidator extends AbstractValidator
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{
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/**
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- Validation rules
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- @var Array
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*/
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protected $rules = array(
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'name' => ['required', 'test', 'min:1'],
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);
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/**
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- Validation messages
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- @var Array
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*/
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protected $messages = array(
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'name.required' => '必填',
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'name.min' => '最少1個字符',
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'name.test' => '測試',
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);
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/**
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- 自定義驗證規則或者擴展Validator類
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*/
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public function before()
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{
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$this->extend('test', function ($attribute, $value, $parameters) {
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return bool;
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});
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}
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}