I have a content type for events. There is an optional field where the user can provide a link that overrides the default link to the event.
For all of our internal events, the link should take website users to the node of the event. However, for events that are held elsewhere by third parties, the link should take the website user to whatever external link is official for that event.
I'm having difficulty creating a single link field in a view that is the value of the external link, unless there no value, in which case it falls back to the node link.
I can make a re-written field that is
[override_link][path], but that always shows the path, no matter what. I only want the path when there is no override_link value.
This is in a Drupal 7 site.