ThinkPHP场景动态验证

一、缘由

今天在用thinkphp8写东西的时候发现，写验证器规则和场景优点费时间，就算用tinkphp的命令行生成也是生成一个空壳。内容还是要自己填写感觉麻烦。
就突发奇想能不能自动生成验证器，也不能是说自动生成验证器，生成验证其的话还是要生成相关的文件，这块因为没弄过就略过
就是说能写一个公共的动态验证器然后规则场景啥的手动输入表名，场景规则和需要使用的场景。经过我小半天的尝试，初见成效，话不多说上代码

二、实现

实现步骤

1、创建正常的验证器的模式

包含rule（规则） message（提示信息） scene（场景）

代码示例

<?phpnamespace app\services;
use think\Validate;
class AdminValidatee extends Validate
{/*** 定义验证规则* 格式：'字段名' =>  ['规则1','规则2'...]** @var array*/protected $rule = [];/*** 定义错误信息* 格式：'字段名.规则名' =>  '错误信息'** @var array*/protected $message = [];
}

2、添加验证场景

代码示例

namespace app\services;
use think\Validate;
class AdminValidatee extends Validate
{/*** 定义验证规则* 格式：'字段名' =>  ['规则1','规则2'...]** @var array*/protected $rule = [];/*** 定义错误信息* 格式：'字段名.规则名' =>  '错误信息'** @var array*/protected $message = [];/*** 定义验证场景* 格式：'场景名' => ["字段1","字段2"]** @var array*/protected $scene= [];
}

3、创建一个获取表结构的方法

用户动态获取表的结构，包括字段，字段类型

代码示例：

    // 获取表结构信息$sql="SELECT COLUMN_NAME ,COLUMN_TYPE ,IS_NULLABLE ,COLUMN_DEFAULT ,COLUMN_COMMENT FROM information_schema.COLUMNSWHERE TABLE_SCHEMA = '$databaseName' AND TABLE_NAME ='$tableName'";// 获取表结构信息$columns = Db::query($sql);$rules = [];$messages = [];foreach ($columns as $column) {$field = $column['COLUMN_NAME'];//字段名$fieldName = $column['COLUMN_COMMENT'];//注释$type = $column['COLUMN_TYPE'];//字段类型$isNullable = $column['IS_NULLABLE'] === 'YES' ? true : false;//是不是为null// 根据字段类型和表结构自动生成验证规则$rule = 'require';// 如果字段允许为空，则移除 'require' 规则if ($isNullable) {$rule = 'nullable';}if (strpos($type, 'varchar') !== false || strpos($type, 'text') !== false) {$rule .= '|length:1,255';  // 字符串类型添加长度验证}if (strpos($type, 'int') !== false) {$rule .= '|number';  // 整数类型字段添加数字验证}// 针对 email 字段，增加邮箱格式验证if ($field == 'email') {$rule .= '|email';}// 添加到验证规则数组$rules[$field] = $rule;$messages[$field] = ucfirst($fieldName.$field) . ' is required and should be of valid format';}return ['rules' => $rules, 'messages' => $messages];

4、创建验证方法

/*** 验证* User: MirGao* Date: 2024/12/3* Time: 14:58* @param $param* @param $scene* @return void*/public function validate($param,$scene){if(!self::scene($scene)->check($param)){exit(json_encode(['code'=>'203','message'=>Validate::getError(),'data'=>[]]));}}

5、接收实例化传过来的参数用构造函数进行赋值

//参数为表名和验证场景public function __construct($table,$sceneRule){parent::__construct();//通过表名动态获取表结构$data=self::getValidate($table);//赋值规则$this->rule=$data['rules'];//赋值提示信息$this->message=$data['messages'];//赋值验证场景$this->scene=$sceneRule;}

6、完整代码

<?php
/*** Notes:* User: 14736* Date: 2024/12/3* Time: 13:46* @return*/namespace app\services;use think\facade\Db;
use think\Validate;class ValidateService extends Validate
{protected $rule = [];protected $message = [];protected $scene  = [];//参数为表名和验证场景public function __construct($table,$sceneRule){parent::__construct();//通过表名动态获取表结构$data=self::getValidate($table);//赋值规则$this->rule=$data['rules'];//赋值提示信息$this->message=$data['messages'];//赋值验证场景$this->scene=$sceneRule;}/*** 获取表结构数据* User: MirGao* Date: 2024/12/3* Time: 14:58* @param $tableName 表名* @return array[]*/static public function getValidate($tableName){// 获取表结构信息$sql="SELECT COLUMN_NAME ,COLUMN_TYPE ,IS_NULLABLE ,COLUMN_DEFAULT ,COLUMN_COMMENT FROM information_schema.COLUMNSWHERE TABLE_SCHEMA = 'questions' AND TABLE_NAME ='$tableName'";// 获取表结构信息$columns = Db::query($sql);$rules = [];$messages = [];foreach ($columns as $column) {$field = $column['COLUMN_NAME'];$fieldName = $column['COLUMN_COMMENT'];$type = $column['COLUMN_TYPE'];$isNullable = $column['IS_NULLABLE'] === 'YES' ? true : false;// 根据字段类型和表结构自动生成验证规则$rule = 'require';// 如果字段允许为空，则移除 'require' 规则if ($isNullable) {$rule = 'nullable';}if (strpos($type, 'varchar') !== false || strpos($type, 'text') !== false) {$rule .= '|length:1,255';  // 字符串类型添加长度验证}if (strpos($type, 'int') !== false) {$rule .= '|number';  // 整数类型字段添加数字验证}// 针对 email 字段，增加邮箱格式验证if ($field == 'email') {$rule .= '|email';}// 添加到验证规则数组$rules[$field] = $rule;$messages[$field] = ucfirst($fieldName.$field) . ' is required and should be of valid format';}return ['rules' => $rules, 'messages' => $messages];}/*** 验证* User: MirGao* Date: 2024/12/3* Time: 14:58* @param $param* @param $scene* @return void*/public function validate($param,$scene){if(!self::scene($scene)->check($param)){exit(json_encode(['code'=>'203','message'=>Validate::getError(),'data'=>[]]));}}
}

三、调用

客户端示例

  <?php
/*** Notes:* User: 14736* Date: 2024/12/3* Time: 13:17* @return*/namespace app\admin\controller;use app\admin\model\AdminModel;
use app\admin\validate\AdminValidate;
use app\services\JsonResponse;
use app\services\JwtService;
use app\services\ValidateService;
use think\Request;class LoginController
{//定义验证场景protected  $sceneRule=[];public function __construct(){//根据业务进行添加场景$this->sceneRule=['login'=>['admin_account','admin_password']];}/*** 登录* User: MirGao* Date: 2024/12/3* Time: 15:04* @param Request $request* @param JwtService $jwtService* @param AdminModel $adminModel* @return \think\response\Json*/public function login(Request $request ,JwtService $jwtService,AdminModel $adminModel){$param=$request->post();//传入表名 验证场景$validate=new ValidateService('system_admin',$this->sceneRule);$validate->validate($param,'login');$adminId='查询语句';if(empty($adminId)){return JsonResponse::error('用户不存在');}$token= $jwtService->getToken($adminId);return JsonResponse::successData(['token'=>$token]);}}