Yii2: Support action injection

[samdark]

Previously autowired dependency injection for controller actions was rejected https://github.com/yiisoft/yii2/issues/9476. Now we have it in Yii 3 and I think we can introduce it in Yii 2 as well for the same purpose as Yii 3 style container syntax was introduced - to make it more convenient overall and to make it easier to migrate to Yii 3.

Note to myself. Check https://yiiframework.ru/forum/viewtopic.php?f=27&t=53846 as one of the possible solutions.

[shushenghong]

this will be great, now \Yii::$app->xxx everywhere :). In lavarel, there are many short functions and instance injections, looks clearly.

[erickskrauch]

Also, to complete the chain, it would be good to return to discussing this issue as well. In my projects, auto-injection of dependencies is very much requested in queue jobs :)

[SamMousa]

I've been using this for since I created it, been in production for multiple years:
https://github.com/SAM-IT/yii2-magic/blob/master/src/Traits/ActionInjectionTrait.php

Notably it takes care of some extra cases:

• It puts placeholders in $requestedParams so that the debugger works and gives useful information
• It works for inline & normal actions.

[samdark]

Adapting your code would be good. Took some time, right? ;)

Do you have some time for a pull request?

[SamMousa]

Unfortunately I do not; but I'm okay with you copying whatever you want from there verbatim and just put it in the source code.
Also, do you want to implement it as a trait, as a behavior or as part of the base controller class?

Also, please ping me when you've done so and I'll remove it from my library.

[samdark]

Base controller class.