Config option to confine list items to stay within their own hierarchy level?

[amfriedman]

Is there an option to ensure that once you start dragging any list item, nestable does not allow the item to be moved across the hierarchy but only among items on its own level?

[pjona]

There is no functionality like this, but we are open for PR.

[RomanBurunkov]

This can be done with beforeDragStop callback.

e.g.
You can add data-type to parent list items and to children.
And mach parent and child type at callback.

[rwx666888]

Can join such a control, control in the same level of mobile is sometimes useful, at present beforeDragStop + .dd-nochildren There is a problem at the root level, can not effectively handle,
https://github.com/dbushell/Nestable/pull/194/files

[aximuseng]

I know this a stale repo but figured I would ask. I have this functionality as suggested by @RomanBurunkov. The issue that remains is that the placeholder doesn't get added. It seems that gets blocked by the callback. There is no user feedback where you are dropping items etc. I am also thinking it's possible to make that placeholder CSS conditional i.e. red for places you can't drop etc. which would be a nice touch. Any suggestions where to start here - been digging through the source code but it's not obvious.

[aximuseng]

I had a rouge dd-nochildren in my DOM which caused this. It seems that you can't dynamically change the dd-placeholder class from these callbacks as you move the selection around (desired). Trying to figure out in the source code where I can perhaps add this functionality.