So, this is fun. Apparently "DeckId" is considered preferable to the
"DeckID" were were using until now, and the latest clippy will start
warning about it. We could of course disable the warning, but probably
better to bite the bullet and switch to the naming that's generally
considered best.
We were (ab)using the bulk update routine to do deletions, but that
code was really intended to be used for finding&replacing, where an
exact match is not a requirement.
- fetch sfld and csum when fetching notes, to make it cheaper
to write them back out unmodified
- make `fields` private, and access it via accessors, so we can
still catch when fields have been mutated without calling
prepare_for_update()
- fix python importing code passing a string in as the checksum
- backend routines should contain minimal logic, and should call
into a routine on the collection
- instead of copying the giant-string approach the Python code was taking,
we use a HashSet to keep track of seen tags as we loop through the
notes, which should be more efficient
See https://github.com/ankitects/anki/pull/900#issuecomment-758284016
- Leave tag names alone and add the collapsed and config columns to the tags table.
- Update The DB check code to preserve the collapse state of used tags.
- Add a simple test for clearing tags and their children
