Consider using Slug Driver system

[askvortsov1]

Hi! Flarum now comes with a slug driver system, where you can specify functions to map an abstract slug to/from a model instance. You could use this to implement this feature without editing the database directly.

For example, a User IdSlugDriver: https://github.com/flarum/core/blob/eed449a3ea3e898b7186ea39c80d7a09dbfd5fed/src/User/IdSlugDriver.php#L15-L15

[PipecraftNet]

@askvortsov1 Thanks for your suggestion. It would be better if it didn't edit the database.
I will look at the code about the slug driver system and try to implement this feature.

However, the sitemap extension(fof/sitemap) uses the value of the slug directly, so it is better to clear the value of the slug in the database now.
https://github.com/FriendsOfFlarum/sitemap/blob/master/src/Resources/Discussion.php#L31

[askvortsov1]

Good point! Opened an issue: FriendsOfFlarum/sitemap#30