在Symfony4中注册自定义主义类型 [英] Register custom Doctrine type in Symfony4

问题描述

所以我有这个自定义的教义类型

So I have this custom Doctrine type

命名空间App\Doctrine\Types;

namespace App\Doctrine\Types;

使用原则\DBAL\平台\抽象平台；
使用Doctrine\DBAL\Types\TextType；

use Doctrine\DBAL\Platforms\AbstractPlatform; use Doctrine\DBAL\Types\TextType;

class MyType extends TextType
{
   private $prefix='';

   public function getName()
   {
      return 'my_type';
   }
   public function setPrefix(string $prefix)
   {
      $this->prefix=$prefix;
   }
}

我在config / packages / doctrine中注册。 yml：

I registerd in in the config/packages/doctrine.yml:

doctrine:
    dbal:
        types:
            my_type: App\Doctrine\Types\MyType

然后在内核boot（）中，我试图向其中添加一些参数这种类型：

Then in Kernel boot() I'm trying to add some parameters to this type:

public function boot() {
   parent::boot();

   $myType=Type::getType('my_type');
   $myType->setPrefix('abc');
}

这在我第一次运行该应用程序时非常有效。为类型设置前缀，并且可以在整个应用程序中使用。但是，第二次出现异常：

This works perfectly the first time I run the app. The prefix is set for the type and can be used through the whole app. However, the second time I get an Exception:

未知列类型 encrypted_text要求。您使用的任何教义
类型都必须向
\Doctrine\DBAL\Types\Type :: addType（）注册。您可以使用\Doctrine\DBAL\Types\Type :: getTypesMap（）获得所有
已知类型的列表。如果在数据库自省期间发生此
错误，则可能会忘记
来为教义类型注册所有数据库类型。使用
AbstractPlatform＃registerDoctrineTypeMapping（）或让您的自定义
类型实现Type＃getMappedDatabaseTypes（）。如果类型名称为
为空，则可能是缓存出现问题或忘记了某些映射
信息。

Unknown column type "encrypted_text" requested. Any Doctrine type that you use has to be registered with \Doctrine\DBAL\Types\Type::addType(). You can get a list of all the known types with \Doctrine\DBAL\Types\Type::getTypesMap(). If this error occurs during database introspection then you might have forgotten to register all database types for a Doctrine Type. Use AbstractPlatform#registerDoctrineTypeMapping() or have your custom types implement Type#getMappedDatabaseTypes(). If the type name is empty you might have a problem with the cache or forgot some mapping information.

然后我将boot（）更改为：

I then changed boot() to :

    public function boot() {
       parent::boot();
       if (!Type::hasType('my_type')) {
           Type::addType('my_type', 'App\Doctrine\Types\MyType');
       }
       $myType=Type::getType('my_type');
       $myType->setPrefix('abc');
   }

现在，异常消失了，但是没有设置前缀。我知道例外情况为我提供了有关操作的信息，但我真的不知道从哪里开始。

Now the exception is gone, but the prefix is not set. I know the exceptions gives me information about what to do but I really don't know where to start.

有人能指出我正确的方向吗？

Can anyone point me in the right direction?

推荐答案

现在，我通过从config / packages / doctrine.yml中删除它来修复它，因此不再在其中注册。在内核中，我现在可以加载它：

For now I fixed it by removing it from config/packages/doctrine.yml so it's not registered there anymore. In Kernel I can now load it:

    public function boot() {
       parent::boot();
       if (!Type::hasType('my_type')) {
           Type::addType('my_type', 'App\Doctrine\Types\MyType');
       }
       $myType=Type::getType('my_type');
       $myType->setPrefix('abc');
   }

在构建缓存之前，我仍然无法真正理解为什么这样做，但是一旦建立缓存。但是，我现在可以继续。

I still can't really understand why this works before building the cache but not once the cache is build. But well, I can continue now.

如果有人有更好的答案，我会很乐意接受。

If someone has a better answer, I'd be more than happy to accept it.

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