worldwide todo list: global map (List/Map toggle, clustered category pins, Global strip, pick on map, location_precision, tasks.geojson)

drizzle/20261026082438_worldtodo_map/migration.sql

@@ -0,0 +1,32 @@
+CREATE TYPE "worldtodo"."location_precision" AS ENUM('exact', 'approximate', 'none');--> statement-breakpoint
+ALTER TABLE "worldtodo"."tasks" ADD COLUMN "location_precision" "worldtodo"."location_precision";--> statement-breakpoint
+-- Hand-written: location_precision follows scale and lat/lon (map pins, tracker #4641).
+-- street/city = exact, region/country = approximate (rough centre), planet or no coordinates
+-- = none. A trigger instead of a generated column so drizzle-kit can diff the enum column.
+CREATE OR REPLACE FUNCTION worldtodo.set_location_precision() RETURNS trigger
+LANGUAGE plpgsql AS $$
+BEGIN
+  NEW.location_precision := CASE
+    WHEN NEW.lat IS NULL OR NEW.lon IS NULL OR NEW.scale = 'planet' THEN 'none'
+    WHEN NEW.scale IN ('street', 'city') THEN 'exact'
+    ELSE 'approximate'
+  END::worldtodo.location_precision;
+  RETURN NEW;
+END $$;
+--> statement-breakpoint
+DROP TRIGGER IF EXISTS tasks_location_precision ON worldtodo.tasks;
+--> statement-breakpoint
+CREATE TRIGGER tasks_location_precision BEFORE INSERT OR UPDATE OF scale, lat, lon, location_precision
+  ON worldtodo.tasks FOR EACH ROW EXECUTE FUNCTION worldtodo.set_location_precision();
+--> statement-breakpoint
+-- Backfill (the trigger computes it) without bumping updated_at: touch_updated_at is paused
+-- for this one statement when it exists.
+DO $$
+DECLARE has_touch boolean := EXISTS (
+  SELECT 1 FROM pg_trigger WHERE tgrelid = 'worldtodo.tasks'::regclass AND tgname = 'touch_updated_at'
+);
+BEGIN
+  IF has_touch THEN ALTER TABLE worldtodo.tasks DISABLE TRIGGER touch_updated_at; END IF;
+  UPDATE worldtodo.tasks SET location_precision = NULL;
+  IF has_touch THEN ALTER TABLE worldtodo.tasks ENABLE TRIGGER touch_updated_at; END IF;
+END $$;