949f65ac16
Database: - Add slug, roaster_slug, brew_data_json columns to timeline_events - Migration backfills existing data from related tables - Remove 9-way LEFT JOIN from list query, read directly from columns Frontend: - Use CSS :nth-of-type(odd/even) for alternating timeline layout - Remove JavaScript class manipulation when appending month events - Simplify infinite scroll month-merging logic This eliminates query-time JOINs across 5 tables and ~20 lines of client-side JavaScript for pattern maintenance.
69 lines
2.3 KiB
SQL
69 lines
2.3 KiB
SQL
-- Add denormalized slug columns to timeline_events
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-- This eliminates the need for 9-way JOINs when listing timeline events
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-- Step 1: Add the new columns
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ALTER TABLE timeline_events ADD COLUMN slug TEXT;
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ALTER TABLE timeline_events ADD COLUMN roaster_slug TEXT;
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ALTER TABLE timeline_events ADD COLUMN brew_data_json TEXT;
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-- Step 2: Backfill roaster slugs for roaster events
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UPDATE timeline_events
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SET slug = (SELECT slug FROM roasters WHERE roasters.id = timeline_events.entity_id)
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WHERE entity_type = 'roaster';
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-- Step 3: Backfill slugs for roast events
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UPDATE timeline_events
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SET slug = (SELECT slug FROM roasts WHERE roasts.id = timeline_events.entity_id),
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roaster_slug = (
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SELECT ro.slug FROM roasts r
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JOIN roasters ro ON r.roaster_id = ro.id
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WHERE r.id = timeline_events.entity_id
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)
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WHERE entity_type = 'roast';
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-- Step 4: Backfill slugs for bag events
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UPDATE timeline_events
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SET slug = (
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SELECT r.slug FROM bags b
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JOIN roasts r ON b.roast_id = r.id
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WHERE b.id = timeline_events.entity_id
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),
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roaster_slug = (
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SELECT ro.slug FROM bags b
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JOIN roasts r ON b.roast_id = r.id
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JOIN roasters ro ON r.roaster_id = ro.id
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WHERE b.id = timeline_events.entity_id
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)
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WHERE entity_type = 'bag';
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-- Step 5: Backfill slugs and brew_data for brew events
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UPDATE timeline_events
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SET slug = (
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SELECT r.slug FROM brews br
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JOIN bags b ON br.bag_id = b.id
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JOIN roasts r ON b.roast_id = r.id
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WHERE br.id = timeline_events.entity_id
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),
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roaster_slug = (
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SELECT ro.slug FROM brews br
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JOIN bags b ON br.bag_id = b.id
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JOIN roasts r ON b.roast_id = r.id
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JOIN roasters ro ON r.roaster_id = ro.id
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WHERE br.id = timeline_events.entity_id
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),
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brew_data_json = (
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SELECT json_object(
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'bag_id', br.bag_id,
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'grinder_id', br.grinder_id,
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'brewer_id', br.brewer_id,
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'coffee_weight', br.coffee_weight,
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'grind_setting', br.grind_setting,
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'water_volume', br.water_volume,
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'water_temp', br.water_temp
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)
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FROM brews br
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WHERE br.id = timeline_events.entity_id
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)
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WHERE entity_type = 'brew';
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-- Gear events have no slug (entity_type = 'gear' gets NULL for both slug columns)
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