Required on Workflow State

+1 for this

We have a requirement for this, where we have a "Ready to publish" state, just before publish, and so it would be great to be able to select the transition that the check should be done on.

Thinking about this more, I think what would work well is to add a checkbox to the workflow transition form which allows setting whether content should be required on transitioning to this stage, something like:

Label: Enable require on publish checks for this transition
Description: When enabled, content passing through this transition will have the require on publish validation performed for any fields which have the "Require on publish" option enabled.

That then gives us the flexibility to have the check performed at multiple transitions, which I think is more robust.

For example, enabling this for both "Ready to publish" and "Published" would mean that even if content is edited after it has transitioned to the ready to publish state, the validation should still be performed.

use ECA