用Doctrine 2检查重复的键 [英] Checking for duplicate keys with Doctrine 2

问题描述

解决方案

你可以捕捉到 UniqueConstraintViolationException 如此：

 使用Doctrine\DBAL\Exception\UniqueConstraintViolationException; 
 
 // ... 
 
 try {
 // ... 
 $ em-> flush（）; 
} 
 catch（UniqueConstraintViolationException $ e）{
 // .... 
} 
  

Is there an easy way to check for duplicate keys with Doctrine 2 before doing a flush?

解决方案

You can catch the UniqueConstraintViolationException as such:

use Doctrine\DBAL\Exception\UniqueConstraintViolationException;

// ...

try {
   // ...
   $em->flush();
}
catch (UniqueConstraintViolationException $e) {
    // ....
}

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