[workflow] node delete

[peter]

Current situation: I have upload a video to a node. This result in a asset + mediafiles. Then I edit the node and set the checkbox "Delete the Video" and save the node. I will edit the node again and delete it. The overall result will be that the node is gone but the asset + mediafiles still exist.

Problem: A part of the problem is #454. the other part is that the asset_id is not saved with the node.

Desired situation: Delete the node results in deletion of the asset. After executing #410 we know which the relation between the node and asset. This relation needs to be used to delete the right asset.

[robert]

My notes on implementation of this ticket;

• Do not store the asset_id on the node (as you might think its asked here in ticket). Store the node_id in the reference_id of the asset. So there is only a connection from asset to node. This forces you to delete the asset if the node is deleted. When asset is throw away outside drupal, then recreate the asset when needed.

[forgacs]

Node delete was fixed.

@Robert: Needs review.

@Peter, Robert: It is not clear for me, why we store the node_id in the asset. But I left the code as it is.