du27271
2014-01-26 13:11
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已采纳

如何在Symfony2中使用misc函数?

Where do I store misc functions? How do I use them? Should it be a DependencyInjection? Should it just be a class and do I do something like use Acme\Bundle\AcmeBundle\Misc\ClientIPChecker?

Say I have a function:

<?php
class ClientIPChecker {
    public static function isLocal(Request $request){
        return in_array('127.0.0.1', $request->getClientIp())
    }
}

And I want to use this function in two controllers. How do I do this in Symfony2?

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  • drbmhd9583 2014-01-26 14:47
    已采纳

    If you have a set of consistent function put them in a class/service. If functions do different things put them in the appropriate class/service. In this particular case, I'll go for either custom Request or custom Controller (probably the latter, avoding messing app.php or app_dev.php).

    With custom controller this doesn't work:

    // Automatic binding of $request parameter
    public function indexAction(Request $request)
    {
       // Won't work with custom controller
       if ($request->isLocal)) {
           // ...
       }
    
       // You have to do
       if ($this->getRequest()->isLocal()) {
           // stuff
       }
    }
    

    Option 1: extend Symfony Request

    namespace My\HttpFoundation;
    
    use Symfony\Component\HttpFoundation\Request as BaseRequest;
    
    class Request extends BaseRequest
    {
        public function isLocal()
        {
           return in_array('127.0.0.1', $this->getClientIp());
        }
    }
    

    Then in web/app.php and web/app_dev.php modify:

    use Symfony\Component\HttpFoundation\Request;
    

    to be:

    use My\HttpFoundation\Request;
    

    Option 2: create a BaseAbstractController and use it instead of Symfony controller

    use Symfony\Bundle\FrameworkBundle\Controller\Controller;
    
    abstract class BaseAbstractController extends Controller
    {
        public function isRequestLocal()
        {
            return in_array('127.0.0.1', $this->getRequest()->getClientIp())
        }
    }
    

    Option 3: custom service as explained here

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