Description of the problem, including code/CLI snippet

The current implementation of the list() method for the ldap_group_links api is not usable. The cli throws an exceptions and the api returns unusable data, because an id is missing.

$ gitlab group-ldap-group-link list --group-id xxxxxx
[, , , , , , ]
Traceback (most recent call last):
File "/home/rof/.local/bin/gitlab", line 8, in
sys.exit(main())
^^^^^^
File "/home/rof/.local/lib/python3.12/site-packages/gitlab/cli.py", line 389, in main
gitlab.v4.cli.run(
File "/home/rof/.local/lib/python3.12/site-packages/gitlab/v4/cli.py", line 556, in run
printer.display_list(data, fields, verbose=verbose)
File "/home/rof/.local/lib/python3.12/site-packages/gitlab/v4/cli.py", line 518, in display_list
self.display(get_dict(obj, fields), verbose=verbose, obj=obj)
File "/home/rof/.local/lib/python3.12/site-packages/gitlab/v4/cli.py", line 487, in display
id = getattr(obj, obj._id_attr)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rof/.local/lib/python3.12/site-packages/gitlab/base.py", line 134, in getattr
raise AttributeError(message)
AttributeError: 'GroupLDAPGroupLink' object has no attribute 'id'

I think the problem is, that the ldap_group_links api has two possible (exclusive) id fields: cn and filter. I did not find a way to reflect this in python-gitlab. As we do not use ldap filters in our Gitlab instance, my "fix" was to add

_id_attr = "cn"

to the GroupLDAPGroupLink class.

Expected Behavior

The data returned shall contain either a cn or filter field.

Actual Behavior

Returned data only has the provider attribute, which is useless without the other field(s).

Specifications

• python-gitlab version: 4.2.0
• API version you are using (v3/v4): v4
• Gitlab server version (or gitlab.com): 16.5.3