[BUG] LDAP: Filtering custom attributes by value doesn't work

[nitnelave]

[BUG] LDAP: Filtering custom attributes by value doesn't work

[nitnelave]

@rabidpug no, attributes lists cannot be used in filters.

Supporting that would require a major redesign of the backend and would add significant complexity to the project, to the point that it might be just easier to use a standard LDAP server.

It all comes from the design decisions taken early on in the project: the data is stored in SQL as simple tables. When adding custom attributes, we have to serialize them to store them in the database. Lists are serialized as a single value, and the SQL engine doesn't understand the serialization. We could write a filter like "does the list contain exactly these values in this order" but that's not very helpful.

[rabidpug]

Note that repeated attributes cannot be searched by values.

Does this mean that it's expected that lists cannot be used in filters currently?
And if yes, is it something that will be implemented in the future?