Claudio Ortolina
48 lines
1.4 KiB
Markdown
48 lines
1.4 KiB
Markdown
---
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id: ML-23
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title: StatsLive.Index runs 4+ sequential queries in mount
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status: To Do
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assignee: []
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created_date: '2026-04-20 08:51'
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labels: []
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dependencies: []
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references:
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- 'https://github.com/cloud8421/music_library/issues/156'
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priority: medium
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---
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## Description
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<!-- SECTION:DESCRIPTION:BEGIN -->
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_GitHub: created 2026-04-05 · updated 2026-04-09 · closed 2026-04-09 · not planned_
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## Summary
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`StatsLive.Index` mount calls `get_latest_record()`, `count_records_by_artist()`, `count_records_by_genre()`, `count_records_by_release_year()`, and more as separate sequential queries with no batching or async loading.
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## Why This Matters
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- Each query is a separate database round-trip
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- Mount blocks until all queries complete, delaying initial page render
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- Lines 54-91 assign 9+ data structures simultaneously
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## Affected Files
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- `lib/music_library_web/live/stats_live/index.ex` (lines 54-91)
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## Suggested Fix
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Use `start_async` or `assign_async` to load stats data concurrently after mount, showing placeholder/loading states for each section.
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## Acceptance Criteria
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<!-- AC:BEGIN -->
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- Stats page initial render is faster
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- Data loads concurrently where possible
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- Loading states are shown while data is fetched
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<!-- SECTION:DESCRIPTION:END -->
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- [ ] #1 Stats page initial render is faster
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- [ ] #2 Data loads concurrently where possible
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- [ ] #3 Loading states are shown while data is fetched
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<!-- AC:END -->
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