Symfony2-将参数传递给服务

Question

is there any way to pass parameter into service from SESSION or other source? I have something like this in my bundle configuration:

<service id="class" class="MyClass">
    <argument key="lang">%class.lang%</argument>
</service>

I know that it can be done by passing parameter from Extension in DependencyInjection but I'm not sure about the source of this variable, it might be session but in some cases it could be readed from database. I just dont want to hardcode in DependencyInjection that parameter should be passed from session.

I know also that I can pass parameter from app config but is there any way to change it after some acction in application?

Answer 1

如果该参数不是由配置确定的（即，它取决于某些应用程序逻辑），则将其放在特定的类中，将该类注册为特定的服务（注入所有必需的服务以确定您感兴趣的值），然后在需要该价值的地方注入特定的服务。