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I have 7.5.10 site. I have one property which links the content item to a corresponding media folder, the content node is of type model and the media folder linked is portfolio of images for the model. Its not a picker, basically when you create a model content item using events we auto create corresponding media folder and then put id in the content item so client can jump to the folder easily,
The property data is just media folder id. One issue we have at the moment is when client deletes models from content tree we have orphaned media folders. So was thinking of using nexu to generate the relations table data. Then looking at running a query to determine all those media folders that do not have a related content item.
Is this doable with nexu?
So you store the id of the media folder with the content item. So in theory this could be handled by a Nexu parser.
Here you find the docs for creating your own parser https://github.com/dawoe/umbraco-nexu/blob/develop/docs/extending.md
But I can see issue with this not working because you set this in the save event and nexu also parses the content in the save event. And I think there is no way to order save event handlers in Umbraco. So it's possilbe that the nexu one fires before yours and the relation is not created.
I already a public method on the API to get incoming links, but not one for outgoing links and that's your case. This is on the roadmap for a next version. But i'm happy to accept a PR for it.
Then you could call this API in the delete event to to check for a incoming relation and delete the folder.
Just ever having pushed the "Post reply" button I actually think you don't need Nexu for this.
When you delete the item (remove from recycle bin) you can hook into that event. Get the linked media folder from the item and delete that as well.
We do not want to auto delete too dangerous we want client todo it. I did not know about save event issue. So this may not work for me.
Also I installed the package on another site and am having a play. One thing I dont think this will work for me because it looks like the relations are not bi directional. So if i link folder to content item, then try and delete content item it will not tell me this item is linking to a folder however deleting the folder should tell me content item is using it. Which i am assuming is the outgoing link issue?
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