Module development and code questions

Hi,

Need to add a complex Iframe to my drupal 8 site and tried iframe module but that's not rich enough, to contain the Iframe I need.

Iframe url =

I am passing variables that change depending on user role to twig from hook_theme in a .module file .  The problem is that the variables are cached and do not change until cache is cleared, so all users get the variables from the first user viewing the page. 

I have tried to set  '#cache' => ['max-age' => 0,] in the controller, but that does not help.

How can I disable or control caching done in hook_theme ??

I have checked both Group and OG modules. Both grouped content , audience. But group module structure different.

I have a feature in drupal 7 , developed totally based on Organic Group module. When I am going to migrate it , I found there is no stable version of OG module available in Drupal 8. So I am facing problems. 

Can I use Drupal 8 Group module to implement this feature which is based on OG module in Drupal 7. If I can implement this feature using Group module in Drupal 8, then how can  I migrate all data ? Because both structure totally different. 

I have checked both Group and OG modules. Both grouped content , audience. But group module structure different.

I have a feature in drupal 7 , developed totally based on Organic Group module. When I am going to migrate it , I found there is no stable version of OG module available in Drupal 8. So I am facing problems. 

Can I use Drupal 8 Group module to implement this feature which is based on OG module in Drupal 7. If I can implement this feature using Group module in Drupal 8, then how can  I migrate all data ? Because both structure totally different. 

Solution:

The CKEditor doesn't work when you explicitly set the "id" attribute through #attributes. I removed it, and now it works.

Original question:

Hi all,

I'm creating a custom form, which is displayed in a modal, and I want to render a CKEditor field in it, but so far without luck.

This is the gist of the problematic code:

Hi everyone

I'm new to Drupal and i would like to ask something because i m creating my own module( PHP ).

I would like to capture when the check button in an h5p quiz (question set or multiple choice ) is pressed.

How can i do this?

Is there maybe a specific function or an event that is triggered when the check button is pressed?

Thanks in advance