如何在Symfony中使用控制檯命令實體

Question

如何在控制檯命令中使用教義和實體？在控制器我只是做$這個 - > getDoctrine ......，但在指揮我發現我必須使用的容器，這 - $> getContainer（） - > getDoctrine（），但是這產生控制檯錯誤：

The container cannot be retrieved as the application instance is not yet set.

Google did not help me...

Answer 1

得到這個關閉的好文章，我在命令中使用實體的發現Symfony的3

// myapplication/src/sandboxBundle/Command/TestCommand.php 
// Change the namespace according to your bundle 
namespace sandboxBundle\Command; 

use Symfony\Component\Console\Command\Command; 
use Symfony\Component\Console\Input\InputInterface; 
use Symfony\Component\Console\Output\OutputInterface; 
// Add the Container 
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand; 

//Extend ContainerAwareCommand instead of Command 
class TestCommand extends ContainerAwareCommand 
{ 
    protected function configure() 
    { 
     $this 
      // the name of the command (the part after "bin/console") 
      ->setName('app:verify-doctrine') 
      // the short description shown while running "php bin/console list" 
      ->setHelp("This command allows you to print some text in the console") 
      // the full command description shown when running the command with 
      ->setDescription('Prints some text into the console with given parameters.') 
     ; 
    } 

    protected function execute(InputInterface $input, OutputInterface $output) 
    { 
     $output->writeln([ 
      'My Final Symfony command',// A line 
      '============',// Another line 
      '',// Empty line 
     ]); 

     $doctrine = $this->getContainer()->get('doctrine'); 
     $em = $doctrine->getEntityManager(); 

     // Now you can get repositories 
     // $usersRepo = $em->getRepository("myBundle:Users"); 
     // $user = $usersRepo->find(1); 

     // outputs multiple lines to the console (adding "\n" at the end of each line) 

     $output->writeln("Doctrine worked, it didn't crashed :) "); 

     // Instead of retrieve line per line every option, you can get an array of all the providen options : 
     //$output->writeln(json_encode($input->getOptions())); 
    } 
} 

這裏是如果你需要任何更多的信息http://ourcodeworld.com/articles/read/239/how-to-create-and-execute-a-custom-console-command-in-symfony-3