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fix(resource-cache): resolve DataFrame TTL eviction causing empty resource status

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_records_from_index() returned [] when process-level DataFrame cache (30s TTL)
expired but derived index remained ready=true. Now reloads from Redis via
_get_cached_data() instead of returning empty.

Also rename /resource page from "機台狀態" to "設備即時概況" in page_status.json.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
egg
2026-02-09 14:42:29 +08:00
parent 3c77d4d028
commit 44b89599a4
2 changed files with 6 additions and 2 deletions
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2
data/page_status.json
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@@ -45,7 +45,7 @@
}, },
{ {
"route": "/resource", "route": "/resource",
"name": "機台狀態", "name": "設備即時概況",
"status": "released", "status": "released",
"drawer_id": "reports", "drawer_id": "reports",
"order": 2 "order": 2

6
src/mes_dashboard/services/resource_cache.py
View File

@@ -419,7 +419,11 @@ def _records_from_index(index: ResourceIndex, positions: list[RowPosition] | Non
return list(legacy_records) return list(legacy_records)
selected = [legacy_records[int(pos)] for pos in positions if 0 <= int(pos) < len(legacy_records)] selected = [legacy_records[int(pos)] for pos in positions if 0 <= int(pos) < len(legacy_records)]
return selected return selected
return [] # DataFrame evicted from process cache (TTL expired) and no legacy
# records stored in index. Reload from Redis before giving up.
df = _get_cached_data()
if df is None:
return []
selected_positions = positions if positions is not None else index.get("all_positions", []) selected_positions = positions if positions is not None else index.get("all_positions", [])
if not selected_positions: if not selected_positions:
selected_positions = list(range(len(df))) selected_positions = list(range(len(df)))