'Call to a member function get() on a non-object'?

Question

Using symfony2. I have a listener class that is attempting to call a method from a different class (a controller) like so:

        $authenticate = new Authe         


        

Answer 1

I'm adding another answer because what @dev-null-dweller suggests is a bad practice: in almost every case you better to inject only the services you need — not the whole container:

use Doctrine\DBAL\Connection;

public function __construct(Connection $connection)
{
    $this->connection = $connection;
}

my_listener:
    arguments: [ @database_connection ]