如何优雅的使用 laravel 的 validator

摘要：开发过程中经常会需要进行参数验证，中我们常用或者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新建

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：

 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()
    {
    }
}

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);
    }
}

 ["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;
        });
    }
}

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

实现了验证和控制器的分离，验证更加方便、快捷
具体使用可以自行配置优化~