Access parameter from the Command Class

Question

I am adding a new command line. I would like to have access to the value of a parameter (parameters.yml) in my Class.

I read that i should add this class as a service to have access to the parameter. So

//config.yml

imports: - { resource: services.yml } 

//services.yml

services:   less_css_compiler:     class: MyVendor\MyBundle\Command\ThemeCommand     arguments: [%less_compiler%] 

//parameters.yml

parameters:     less_compiler:     WinLess.exe 

it is said that normaly the argument is in the constructor of the class but if I do this :

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

I have a warning saying that the first argument is missing. In the Command mother class there is a name as then unique argument of the constructor but even though I write :

 public function __construct($name, $less_compiler) {  } 

It does not change anything..

Other possibility is to call the service inside my class :

$service = $this->getContainer()->get('less_css_compiler'); 

But how do I get the argument ?

Thank you

Answer 1

Simple way, let command extend ContainerAwareCommand

$this->getContainer()->getParameter('parameter_name'); 

or

You should create seperate service class

$service = $this->getContainer()->get('less_css_compiler'); 

//services.yml

services:   less_css_compiler:     class: MyVendor\MyBundle\Service\LessCompiler     arguments: [%less_compiler%] 

In service class, create constructor like above you mentioned

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

Call the service from command class.

Thats it.

Reason: You are making command class itself as service, bit command class contructor expects the command name as the first argument.