lumen手记：自定义Validate表单验证

今天开始跳lumen的表单验证Validate类的坑，确实好坑！！！

首先，lumen的表单验证返回是无状态的json格式api，这...

所有开始搞起，

先来看看官方的方法，验证不通过直接返回json。

1	`$this->validate($request, $rules, $message, $attributes);`

namespace Laravel\Lumen\Routing;
 
trait ProvidesConvenienceMethods{
 
......
 
    public function validate(Request $request, array $rules, array $messages = [], array $customAttributes = [])
    {
        $validator = $this->getValidationFactory()->make($request->all(), $rules, $messages, $customAttributes);
 
        if ($validator->fails()) {
            $this->throwValidationException($request, $validator);
        }
    }
 
......
 
}

$this->throwValidationException($request, $validator);原来是这里直接返回json

if ($validator->fails()) {
     /**
       * 修改验证返回
       */
     return $this->formatValidationErrors($validator);
     $this->throwValidationException($request, $validator);
}

重新发送请求，果然生效了！！！可是... 看了一下路径vendor\laravel\lumen-framework\src\Routing\ProvidesConvenienceMethods.php，尴尬了，是扩展包的类。。。

控制器的底层类Controller.php也在这里，点进去look一look，

<?php
 
namespace Laravel\Lumen\Routing;
 
class Controller
{
    use ProvidesConvenienceMethods;
 
    /**
     * The middleware defined on the controller.
     *
     * @var array
     */
    protected $middleware = [];
 
    /**
     * Define a middleware on the controller.
     *
     * @param  string  $middleware
     * @param  array  $options
     * @return void

果然在这里引用ProvidesConvenienceMethods，而前面控制器的$this->validate应该也是调的这里，一切明了，在这里加一个和validate类似的方法不就OK了？

public function validates(Request $request, array $rules, array $messages = [], array $customAttributes = [])
    {
        $validator = $this->getValidationFactory()->make($request->all(), $rules, $messages, $customAttributes);
     
        if ($validator->fails()) {<br>　　　　　　　echo 1;exit();
            /**
             * 修改验证返回
            */
            return $this->formatValidationErrors($validator);
            //$this->throwValidationException($request, $validator);
        }
    }

调用$this->validates($request, $rules, $message, $attributes);//输出1

注释断点再测试，发现验证通过，返回结果集！

不过写在这里肯定不好，那就写在比较靠近应用层的Controller.php吧——app\Http\Controller/Controller.php

<?php
 
namespace App\Http\Controllers;
 
use Laravel\Lumen\Routing\Controller as BaseController;
use App\Providers\Validate\AppProvidersValidate;
 
class Controller extends BaseController
{
    //全局表单验证定制类
    use AppProvidersValidate;
    //
}

1	`AppProvidersValidate.php放在哪，在什么命名空间下，你开心就好咯！我放在app\Providers\Validate\AppProvidersValidate.php具体代码如下，`

<?php
namespace App\Providers\Validate;
 
use Illuminate\Http\Request;
 
trait AppProvidersValidate
{
    public function validates(Request $request, array $rules, array $messages = [], array $customAttributes = [])
    {
        $validator = $this->getValidationFactory()->make($request->all(), $rules, $messages, $customAttributes);
     
        if ($validator->fails()) {
            /**
             * 修改验证返回
             */
            return $this->formatValidationErrors($validator);
            //$this->throwValidationException($request, $validator);
        }
    }
}

以后一些针对表单验证的处理操作也可以放在这里啦！！！网上资料好少，纯手打，请不要转载，谢谢啦！！！详细分析(添加手机验证，中文验证与Validator验证的“半个”生命周期)：http://www.cnblogs.com/cxscode/p/7561277.html

补充一下：

vendor\illuminate\validation\Factory.php是make()函数的实现位置，喜欢可以研究探讨下

namespace Illuminate\Validation;
class Factory implements FactoryContract
 
{
 
　　......
 
public function make(array $data, array $rules, array $messages = [], array $customAttributes = [])
{
// The presence verifier is responsible for checking the unique and exists data
// for the validator. It is behind an interface so that multiple versions of
// it may be written besides database. We'll inject it into the validator.
$validator = $this->resolve(
$data, $rules, $messages, $customAttributes
);
 
if (! is_null($this->verifier)) {
$validator->setPresenceVerifier($this->verifier);
}
 
// Next we'll set the IoC container instance of the validator, which is used to
// resolve out class based validator extensions. If it is not set then these
// types of extensions will not be possible on these validation instances.
if (! is_null($this->container)) {
$validator->setContainer($this->container);
}
 
$this->addExtensions($validator);
 
return $validator;
}
 
......
 
}