Migrate tags

[Paul Everitt]

We need a way to dump the tag data and import it.

Tres wrote the export/import system for migrating tag data for KARL1 -> KARL2. Both systems used Tasty under the hood, so it is possible that the exporter can still work.

The process of importing will take some thinking:

- We need all the users and all the content loaded first. Then we can do the tagging.

- We'll need some way to migrate the UID on content between systems. This *might* mean hooking the content import process to keep track of which docid in KARL3 maps to which UID in KARL2.

[Paul Everitt (paul-agendaless)]

Making this lower in priority for M12, which is focused on community content.

[Paul Everitt (paul-agendaless)]

Move to next week.

[Chris Rossi (chris-archimedeanco)]

This bug description doesn't make a lot of sense to me. All I'm doing is reading the ".tags" file when importing content and setting the tags on the form for the add view.

[Chris Rossi (chris-archimedeanco)]

Paul explained to me why this is more complicated than I thought. Tags are also associated with the person who applied the tag and multiple people can apply the same tag to the same content.

[Paul Everitt (paul-agendaless)]

Also, here is what Tres had to say when we asked him about tag migration:

Content tags are exported as part of the normal export. Because
profiles weren't "content", they had a separate tag export. The only
work should be to ensure that both exports are handled correctly.

[Chris Rossi (chris-archimedeanco)]

Again, quoting Tres:

That file is CSV: see Produts.gs_kmi.tag:put_csv for help in parsing it.