It would be very useful if these two hooks could be allowed to return FALSE to block the addition or removal of a node.

Possible applications:

- only allow nodes into a featured block on the home page that have content in particular fields (such as an image)
- prevent a nodequeue from being empty

Comments

rory.davies’s picture

Another use case :

I use Per Page Queue (a Nodequeue addon) to create and manage a subqueue (of articles) for each issue of a web newsletter. Once each issue has been published, I want to prevent further changes - that is, I need to prevent addition or deletion of articles in that subqueue.