symfony14.rst

Wrap symfony >=1.4

Here is the basic configuration for a symfony >=1.4 application:

theodo_evolution_legacy_wrapper:
    root_dir: %kernel.root_dir%/../legacy
    kernel:
        id: theodo_evolution_legacy_wrapper.legacy_kernel.symfony14
        options:
            application: frontend
            environment: '%kernel.environment%'
            debug:       '%kernel.debug%'

Update options in runtime

There is an event LegacyKernelEvents::BOOT being dispatched in from Symfony14Kernel::boot before legacy project is actually started. Handling this event allows to update options (application, environment and debug) in runtime. For example to launch application(in terms of symfony 1) based on request:

namespace My\LegacyWrapperBundle\EventListener;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Theodo\Evolution\Bundle\LegacyWrapperBundle\Kernel\Event\LegacyKernelBootEvent;
use Theodo\Evolution\Bundle\LegacyWrapperBundle\Kernel\LegacyKernelEvents;

class MyListener implements EventSubscriberInterface
{
    /**
     * @param LegacyKernelBootEvent $event
     */
    public function onLegacyKernelBoot(LegacyKernelBootEvent $event)
    {
        $request = $event->getRequest();
        if($this->isBackendApplication()) {
            $event->setOption('application', 'backend');
        } else {
            $event->setOption('application', 'frontend');
        }
    }

    /**
     * {@inheritdoc}
     */
    public static function getSubscribedEvents()
    {
        return [
            LegacyKernelEvents::BOOT => 'onLegacyKernelBoot'
        ];
    }


    /**
     * @param Request $request
     *
     * @return bool
     */
    protected function isBackendApplication(Request $request)
    {
        // .... some logic there
    }
}