Record can't be found in course_categories table

[dcadiou]

When visiting some training page, an error message such as the following can pop up (in French):

Impossible de trouver l’enregistrement de données dans la table course_categories de la base de données.

In database,

select categoryid
from mdl_tool_attestoodle_training mtat 
where id = 2; -- 15890

select *
from mdl_course_categories mcc 
where id = 15890; -- vide !

[dcadiou]

When a course_category is removed from the Moodle platform, but attestoodle still has a training that references it, there is no automatic cleaning method that delete the Attestoodle training too or display a notification to inform the user that this training is obsolete.

To sum up, Attestoodle is missing some obsolete category management.