Dear Drupal Enthusiasts,
I was hoping that one of you may be able to solve a problem I'm having with the Feeds module and its unique identifiers.
Basically, I would like to be able to target a field with a unique identifier like you can do with any ordinarily created content-type. However, I want to do this on a custom module (which has its own form of unique identification).
In other words, I have a field in my custom module that is unique, but Drupal does not know that this field is unique. How do I both tell Drupal that this custom module contains a unique field and identify that field as unique so that I can update content rather than delete it and replace it every time I wish to import data?
Any guidance would be most helpful!