feat: Update Shopping List Timestamp on List Item Update #3453
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What type of PR is this?
(REQUIRED)
What this PR does / why we need it:
(REQUIRED)
This PR listens for list item events (create, update, delete) and updates the parent list so the
update_at
property is changed.Which issue(s) this PR fixes:
(REQUIRED)
Fixes #3449
Special notes for your reviewer:
The
SessionBuffer
class is used so the shopping list is only updated once per commit (otherwise a bulk update of 10 items would update the shopping list 10 times). The use of theContextVar
is to prevent race conditions in the FastAPI ASGI context (similar issue to having a global variable shared by multiple threads).Testing
Pytest