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Show count of versions in documents app

Hello together,

in the documents app kanban view I want to show the count of versions for this document if more than 1 version of this document exists. I try several ways to implement that logic but I do not get it. How is the logic between documents.document and ir.attachment. I do not find id’s or keys to connect this two modells and in some cases I didn’t get a dataset in ir_attachment for the version.

Thanks a lot.

Best regards,

Matthias

Matthias Ellmerer

digitalisierung & software