问题
I have a problem with Symfony 4, I want generate entities from an existing database with the command :
php bin/console doctrine:mapping:import --force AppBundle xml
But an error appears :
Bundle "AppBundle" does not exist or it is not enabled. Maybe you forgot to add it in the registerBundles() method of your App\Kernel.php file?
I try to import in the file kernel.php in registerBundles() :
new AppBundle/AppBundle();
but undefined class and when I create it in src/AppBundle/AppBundle.php :
<?php
namespace AppBundle;
use Symfony\Component\HttpKernel\Bundle\Bundle;
class AppBundle extends Bundle
{
}
nothing change and when I retry the command :
PHP Fatal error: Uncaught Symfony\Component\Debug\Exception\ClassNotFoundException: Attempted to load class "AppBundle" from namespace "App".
Did you forget a "use" statement for another namespace? in /var/www/html/symfony/Mission3/src/Kernel.php:30
I would like to know if it's possible to create a bundle like that or if it exists an other command to generate entities from an existing database.
回答1:
in SF4, The main application component is named 'App' by default and is not a bundle. You have to manually create a dummy bundle under src\ directory in order to use old doctrine:command related to bundle. see how to manually create a bundle here
After that, you can import/generate mappings/entities using doctrine:commands and use them in the App main module space, or in those bundles.
The SF4 maker tool don't provide bundle creation yet ... But I suppose the SF4 developers consider it's not an urge must have requirement, because they want us to focus on putting most code in the bundle less App main module.
回答2:
In symfony 4 'AppBundle' is doesn't exist anymore. Try use 'App' instead 'AppBundle'
来源：https://stackoverflow.com/questions/49498788/appbundle-symfony-4