README

一个可复用的SRP组件，用于复杂逻辑检查器。

• 编写DRY代码
• 防止使用过多的if else语句
• 使逻辑检查器可复用

使用方法

安装

composer require "vestin/logic-checker:*",

示例

编写检查器

use Vestin\Checker\CheckNotPassException;

class MathAddChecker implements CheckerInterface
{

    private $paramOne;
    private $paramTwo;
    private $result;

    public function __construct($paramOne, $paramTwo, $result)
    {
        $this->paramOne = $paramOne;
        $this->paramTwo = $paramTwo;
        $this->result = $result;
    }


    public function check() {
        if( ($this->paramOne + $this->paramTwo) != $this->result){
            throw new CheckNotPassException('calc error');
        }
    }

}

检查通过示例

include 'vendor/autolad.php'

$dispatcher = new \Vestin\Checker\Dispatchers\SimpleDispatcher();
$checkerBus = new \Vestin\Checker\CheckerBus($dispatcher);

$checker = new MathAddChecker(1, 2, 3); // 1+2=3
$checker2 = new MathAddChecker(2, 3, 5); // 2+3=5

$checkerBus->addChecker($checker)
           ->addChecker($cherker2);
    
if($checkerBus->check()){
    // check pass
    echo 'check passed'; // this will called
}else{
    // check not pass
    $error = $checkerBus->getError();
}

检查未通过示例

include 'vendor/autolad.php'

$dispatcher = new \Vestin\Checker\Dispatchers\SimpleDispatcher();
$checkerBus = new \Vestin\Checker\CheckerBus($dispatcher);

$checker = new MathAddChecker(1, 2, 3); // 1+2=3
$checker2 = new MathAddChecker(2, 3, 6); // 2+3=5 this is wrong

$checkerBus->addChecker($checker)
           ->addChecker($cherker2);
    
if($checkerBus->check()){
    // check pass
    // echo 'check passed';
}else{
    // check not pass
    // this will called
    $error = $checkerBus->getError(); // $error will be a string 'calc error';
}