Menu machine names - additional validation - prevent mistakes

It seems that the issue you mentioned, not exist or some key information is missing in the description. Attaching the screen shot -

In ordered to replicate - I tried various combinations including and excluding uppercase, integers, lowercase and spaces. I had encountered error when expected and no unexpected error encountered. To demonstrate, I attached a particular screenshot containing a machine name appended with one space.

@jcninov can you provide additional information

Hi, thanks for the answer.

Just after click on Save, you have the error message but if you go to the menu list, the menu will be there.
I add another step, just after 5 Click on save.

6. Go back to the Menu list and the menu will be there.

So what happens is, when "dummies do this", lots of lots of errors and a messy cleanup is required.

Dummy step 1)

• Enter a menu title

Illustration of Dummy step 1:

Dummy step 2)

• press the edit link for machine name, manually replace the underscores with spaces.

Illustration of Dummy step 2:

Dummy step 3)

• Press save

The result is a mess that needs a database restore from backup or some tricky work outside of the drupal api to clean it up.

Suggested solution:

Add submit validation handling for these machine names to prevent dummies from breaking stuff.

@smustgrave , or anyone else?
Would it be possible/feasible to create a constraint plugin for the machine_name value of the menu entity (or other entity types?)

https://www.drupal.org/docs/drupal-apis/entity-api/entity-validation-api... →

I saw a field constraint get added to one of my custom projects but what about for a machine_name on an entity type? is this type of constraint possible with the plugin system?

This is fixed in D10.3.0

actually , I also tested Drupal 9.5.11 and I was unable to save a space, thankfully.