Validation Widget Relation

[felipe-dr]

Goodnight

Something I noticed that would be important to have is that when trying to delete the value of an entry of type "Relation", if that value is being used, an informative message should be displayed and preventing the user from deleting data that is being used elsewhere in the system.

For example:

Categories:
- vehicleCategory: Small
- vehicleCategory: Medium
- vehicleCategory: Big

Services:
- category: Small
- title: Service Title
- description: Service description.

When trying to delete the "Small" value entry from the "categories" entry, as it is being used, therefore its deletion should not be allowed, as well as a message should be displayed saying that the category must first be disassociated from the service to make the deletion possible.

Thanks

Felipe D.R.