删除Symfony2范围扩展通知

Question

I'm trying to speed up my stack by removing references to the service container where possible. In this case I only need the request:

email_error_message:
  class: Core\MyBundle\Services\Email\ErrorMessage
        arguments: [ @request, %params ]

However, that throws a scope widening issue. I'm not concerned with refactoring the code for now, I just wish to get rid of the warning by adding strict = true. But I can't seem to get the YAML syntax right:

email_error_message:
  class: Core\MyBundle\Services\Email\ErrorMessage
        arguments:
            - { type: service, id: request, strict: false }
            - %params%

This isn't working though. Any ideas?

EDIT I realise I could change the scope of this service to request, but that isn't an option in this case.

Answer 1

You want to restrict the scope of the service to the request scope, since you need to make sure you're passed the right Request instance - if you are using the service from within a subrequest for example, or whether through the main request. Adjust your service config to:

services:
    email_error_message:
        class: Core\MyBundle\Services\Email\ErrorMessage
        scope: request
        arguments: [ @request, %params% ]

See the docs for more details.

Edit as per your question edit, you're not able to change the scope. In which case, your syntax should be as follows:

services:
    email_error_message:
        class: Core\MyBundle\Services\Email\ErrorMessage
        arguments: [ @request=, %params% ]

with the appended = symbol. Note that I've not seen this referenced anywhere, and it's from digging around in the code for the DI container ;-)