ContactGroupsController: Show add contact link if no contact exists

[sukhwinder33445]

resolves #338

Requires:

• Remove .action-link and button-link css icingaweb2#5370
• ButtonLink: Allow to disable the button ipl-web#284

[sukhwinder33445]

Case : There is only one contact available, and there is also a contact group containing this contact.

When the user deletes the contact, should the contactgroup also be deleted? Because the contact group now has no members and the modal Edit contact group again shows no suggestion (in contactgroup detail view).

[flourish86]

It works great. But we should also handle the case, when the user has no channels either, shouldn't we?

In this case user won't be able to create a contact via the second column. I will come up with something soon …

[sukhwinder33445]

We can display a kind of wizard when the user activates the module for the first time to show these steps (channel, contact). Same as the setup wizard in Icingaweb.

[flourish86]

I thought of something like this for the case when there's neither channels nor contacts configured. A wizard could be an additional feature to onboard user.

For the empty state warnings, there's still the use case, when channels or contacts are deleted in hindsight.

And another thing: The empty state statement still reads "No contacts found.", even for contact groups, it should be "No contact groups found."

In this example the user …

1. opens channels in the second column
2. save channel and closes the column
3. then adds the contact
4. saves and closes it
5. can now create the contact group