Collection blocks - custom controller action

[gauravtiwari]

Hello Daniel,

I have a custom controller action and relevant view file in curly (followers). Also, I have a layout presenter which basically acts as parent presenter for all view blocks that are common to that controller.

I am trying to implement collection block as per your documentation but it's throwing an error -
required identifier user missing

class Users::FollowersPresenter < ProfileLayoutPresenter

    def followers
         @user.followers(User)
    end

    def followings
        @user.followees(User)
    end

end

And then I have relevant follower and following (singular) presenter for presenting fields. Please let me know what I am doing wrong ?

Please note, I also added presents :user in the code but the error is same. Since, it's inheriting from the parent it should have user variable.

Thank you,
Gaurav

[gauravtiwari]

@dasch Can confirm that it's only happening on custom controller methods.

required identifier user missing

Also, how does a presenter extract an instance variable from controller? For ex - if I have a custom followers method and have an instance variable (@followers) with assigned data. How do I access that variable in followerspresenter?

[dasch]

Hi @gauravtiwari, sorry for the late response. Can you paste a minimal reproducible example to a gist?

[dasch]

One quick question: since you inherit presents :user from the parent presenter class, you must set @user in the controller action if you render the template directly as a view, or pass it to render if you render it as a partial.

[gauravtiwari]

@dasch I did the same thing in my controller action but can't seem to use it in my presenter class. The parent presenter has: ruby presents: user and since, I am inheriting from parent presenter the variable should be present. Also, I am passing ruby locals: {user: @user} in my partial, like so

[dasch]

Can you create a gist with a complete example?

[dasch]

I was able to reproduce the bug – it was caused by an error in the way the parameters were forwarded. The fix will be released in v2.1.