Genuine product bug, found behind the adminPhotos.reference suite (which was
failing for an unrelated reason -- see below).
parseInt('0') is 0 and !isNaN(0) is true, so a '0' category_id was written
literally. photo_categories.id is an increments() column, so 0 can never be a
real category, and every read path already assumes it cannot happen: the list
mapper does `category_id || type` (0 is falsy, renders as uncategorized) and
the list filter explicitly skips '0'. The result was a filter black hole -- the
photo matches no numeric category filter, and misses the "uncategorized"
filter too because that is whereNull(). Displayed as uncategorized, reachable
by nothing.
null rather than a 400: unparseable input ('abc' -> NaN) already falls through
to null, so 400ing on '0' while silently accepting 'abc' would be incoherent,
and '0' is just the HTML <select> shape where the "none" option carries
value="0".
Fixed at all three call sites that share the branch -- PATCH /photos/:photoId,
POST /photos/bulk-update, and the upload route, where the dangling 0 was
written at creation time and the scope-validation guard
(`if (parsedCategoryId && ...)`) skipped on the falsy 0 and let it in
unvalidated. Only the PATCH one was behind the failing test; leaving the other
two would have left the bad state creatable.
The suite's 3 failures were all masked by a fixture gap, not this bug: it
stubs middleware/auth but not middleware/permissions, so requirePermission's
admin_users JOIN roles query hit tables the fixture never creates and every
request 500'd before reaching a handler. Stub it, bring the photos fixture up
to the 7 migrations it had drifted behind, and correct a stale 200 that became
202 when uploads went async in 851744c3.
Known adjacent gap, not fixed (wider than this bug): PATCH and bulk-update
accept any positive category_id with no existence or scope check, unlike the
upload route which validates event_id = X OR is_global per #500/#525 -- so a
photo can be PATCHed into another event's category.
Refs testplan REPORT.md #22 (Part 1.2.01).
Paul Nothaft
paul