Notifying GraphArrayView of the graph change

[yfukai]

This is an attempt to solve #202.

[yfukai]

I just started with Codex. I'll check the update and later.

Implemented. GraphArrayView now listens to graph mutations and invalidates cache entries instead of serving stale chunks.

What changed

• Added cache invalidation API to chunk cache:
  • NDChunkCache.clear() and NDChunkCache.invalidate(...) in src/tracksdata/array/_nd_chunk_cache.py:164.
• Wired GraphArrayView to graph signals and region invalidation:
  • signal hookups in src/tracksdata/array/_graph_array.py:203
  • mutation handlers + bbox/time-based invalidation in src/tracksdata/array/_graph_array.py:358
• Added node-attribute update signal to base graph:
  • node_attrs_updated = Signal(object, object) in src/tracksdata/graph/_base_graph.py:52
• Emitted node_attrs_updated from all relevant backends (ID-space correct):
  • RustWorkXGraph in src/tracksdata/graph/_rustworkx_graph.py:1236
  • IndexedRXGraph mapping-safe emit in src/tracksdata/graph/_rustworkx_graph.py:1945
  • SQLGraph in src/tracksdata/graph/_sql_graph.py:1758
  • GraphView in src/tracksdata/graph/_graph_view.py:658
• Updated bbox spatial filter to react to attribute updates affecting spatial indexing:
  • rebuild wiring in src/tracksdata/graph/filters/_spatial_filter.py:232
  • update handler in src/tracksdata/graph/filters/_spatial_filter.py:342

Tests added

• GraphArrayView mutation-refresh coverage in src/tracksdata/array/_test/test_graph_array.py:383
• NDChunkCache invalidate/clear coverage in src/tracksdata/array/_test/test_nd_chunk_cache.py:121

Validation run

• uv run ruff check ... (all modified files) passed
• uv run pytest src/tracksdata/array/_test/test_nd_chunk_cache.py -q → 16 passed
• uv run pytest src/tracksdata/array/_test/test_graph_array.py -q → 100 passed
• uv run pytest src/tracksdata/graph/filters/_test/test_spatial_filter.py -q → 19 passed

[codecov-commenter]

Codecov Report

❌ Patch coverage is 71.42857% with 46 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.50%. Comparing base (e10d8c3) to head (e0502a6).

Files with missing lines	Patch %	Lines
src/tracksdata/array/_graph_array.py	56.00%	24 Missing and 9 partials ⚠️
src/tracksdata/array/_nd_chunk_cache.py	78.57%	3 Missing and 3 partials ⚠️
src/tracksdata/graph/_graph_view.py	44.44%	3 Missing and 2 partials ⚠️
src/tracksdata/graph/_sql_graph.py	71.42%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #263      +/-   ##
==========================================
- Coverage   88.18%   87.50%   -0.68%     
==========================================
  Files          56       56              
  Lines        4308     4442     +134     
  Branches      749      776      +27     
==========================================
+ Hits         3799     3887      +88     
- Misses        319      350      +31     
- Partials      190      205      +15     

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