ensure product/category pairs never have NULL categories #7818
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Closes #7814
Reverts #7776
This change updates the
ProductPageCategory
model (which represents a(product <-> category)
many-to-many relation) so that if a category is deleted, any ProductPageCategory that uses that category is deleted, too, with a migration that explicitly deletes all currently extant ProductPageCategory instances with a category set toNone
(there are 171 entries in the production database for this at the time of writing this PR).Verifying the problem
inv copy-prod-db
docker-compose up
Testing the solution
docker-compose down
inv migrate
docker-compose up