Visualizer: show a plate lid as its own tree node, exclude it from the well count - #1147
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…om the well count
A plate's lid is a regular child resource, so the sidebar tree counted it as a
well ("97 wells" on a lidded 96-well plate) and never showed it separately.
Add an isLid predicate, exclude lids from the plate and tube-rack counts, and
return the lid from getDisplayChildren so it renders as its own collapsible node
while the individual wells/tips/tubes stay hidden.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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A plate's lid is a regular child resource, so the sidebar tree counted it toward the plate's item total - a lidded 96-well plate read "97 wells" - and the lid never appeared as its own node because plate-like resources return no display children. Confirmed on a real serialized culture_plate (with_lid=True): 97 children, the last one a Lid.
Both stem from the same assumption that every child of a plate is a well, which stopped being true once lids became child resources.
isLidpredicate (category === "lid"orresourceType === "Lid").getDisplayChildrenso it renders as its own collapsible tree node, while the individual wells/tips/tubes stay hidden as before.No behavior change for lid-less plates or for the canvas: the change only touches the sidebar tree and the count label. Tip racks are unaffected in practice - PLR has no lid concept for them - and stay consistent (the filter simply yields none).
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