Forum modules uses ddm() function from Devel 5.x module. Without Devel module it fails with en error:
Error: Call to undefined function Drupal\forum\ddm() in Drupal\forum\ForumIndexStorage->checkExisting() (line 46 of /var/www/www-root/data/www/drupalbook.org/web/modules/contrib/forum/src/ForumIndexStorage.php).
We should add function_exists('ddm'), before using this ddm() function, because Devel module is not supposed to be on Production environments.
Active
1.0
Code
Hi, I suspect you have a patched or modified version of that file - there is no reference to ddm in this file - https://git.drupalcode.org/project/forum/-/blob/1.x/src/ForumIndexStorag...