Backfill Lagoon Location

Implement one-time script to populate missing park locations ( Lagoon and others ) by creating a backfill that assigns proper location data and updates parks with new location_id after ensuring backfill function fixes.

supabase/migrations/20251112042803_4b80af13-9be7-454a-9406-43ae3244e165.sql

@@ -0,0 +1,47 @@
+-- Phase 2: Fix backfill_park_locations to include name and display_name
+CREATE OR REPLACE FUNCTION backfill_park_locations()
+RETURNS jsonb
+LANGUAGE plpgsql
+SECURITY DEFINER
+SET search_path = public
+AS $$
+DECLARE
+  v_parks_updated INTEGER := 0;
+  v_locations_created INTEGER := 0;
+  v_park RECORD;
+  v_submission RECORD;
+  v_location_id UUID;
+  v_location_name TEXT;
+BEGIN
+  FOR v_park IN 
+    SELECT DISTINCT p.id, p.name, p.slug
+    FROM parks p
+    WHERE p.location_id IS NULL
+  LOOP
+    SELECT psl.name, psl.display_name, psl.country, psl.state_province, psl.city, psl.street_address,
+      psl.postal_code, psl.latitude, psl.longitude, psl.timezone
+    INTO v_submission
+    FROM park_submissions ps
+    JOIN park_submission_locations psl ON ps.id = psl.park_submission_id
+    WHERE ps.park_id = v_park.id AND ps.status = 'approved' AND psl.country IS NOT NULL
+    ORDER BY ps.created_at DESC LIMIT 1;
+
+    IF FOUND THEN
+      v_location_name := COALESCE(v_submission.name, v_submission.display_name,
+        CONCAT_WS(', ', NULLIF(v_submission.city, ''), NULLIF(v_submission.state_province, ''), NULLIF(v_submission.country, '')));
+      
+      INSERT INTO locations (name, display_name, country, state_province, city, street_address, postal_code, latitude, longitude, timezone)
+      VALUES (v_location_name, COALESCE(v_submission.display_name, v_location_name), v_submission.country, v_submission.state_province,
+        v_submission.city, v_submission.street_address, v_submission.postal_code, v_submission.latitude, v_submission.longitude, v_submission.timezone)
+      RETURNING id INTO v_location_id;
+
+      UPDATE parks SET location_id = v_location_id WHERE id = v_park.id;
+      v_parks_updated := v_parks_updated + 1;
+      v_locations_created := v_locations_created + 1;
+      RAISE NOTICE 'Backfilled location % (name: %) for park: % (id: %)', v_location_id, v_location_name, v_park.name, v_park.id;
+    END IF;
+  END LOOP;
+
+  RETURN jsonb_build_object('success', true, 'parks_updated', v_parks_updated, 'locations_created', v_locations_created);
+END;
+$$;