How to show unread messages in PMM block?

[LubomirKurpel]

I found this in pmm-recent.html.twig. I think it is a prepare for actually having the number of unread messages in the block.

<span class="pmm-recent__message-count pmm-recent-count"></span>

But it looks like there is a twig variable missing inside. I am not that good in coding so I just pushed the value inside via javascript from official Private Message block rendered elsewhere but it would be very nice to have.

[LubomirKurpel]

Oh i just found out how easy it was to insert the number inside, I just re-wrote it like this:

<span class="pmm-recent__message-count pmm-recent-count">{{ private_message_page_link }}</span>

now it works like a charm. Maybe it could be inside in the module? Minor change but it helps.

[LubomirKurpel]

Okay so it looks like proper method should be this:

Add this line to template_preprocess_pmm_recent() function in .module file:

  $variables['strings'] = [
    'link' => t('Messages'),
    'more' => t('All Messages'),
    'loading' => t('Loading...'),
    **'new_messages' => \Drupal::service('private_message.service')->getUnreadThreadCount(),**
  ];

And then this to twig file:

<span class="pmm-recent__message-count pmm-recent-count">{{ strings.new_messages }}</span>

But now I am facing a twig caching problem, that new messages only come and are visible when cache is being cleared. Not good.

[UmitAltun]

I found such a solution for the cache problem I hope it works

https://www.drupal.org/project/blocache