Fix Lagoon location backfill

Backfilled Lagoon park with a proper location by updating backfill_park_locations to include name/display data and linking to location_id. Verified Lagoon now has location details (name, city, country, coordinates) and map displays. Documented remaining need to update approval function to include location name on future submissions.

supabase/migrations/20251112043400_43770669-a536-4d46-88ed-e63122f1a13e.sql

@@ -0,0 +1,65 @@
+-- Fix backfill to remove display_name (column doesn't exist in locations table)
+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
+    -- Find most recent submission with location data
+    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.slug = v_park.slug AND (psl.country IS NOT NULL OR psl.city IS NOT NULL)
+    ORDER BY ps.created_at DESC LIMIT 1;
+
+    IF FOUND THEN
+      -- Construct location name from available data
+      v_location_name := COALESCE(
+        v_submission.display_name,
+        v_submission.name,
+        CONCAT_WS(', ', NULLIF(v_submission.city, ''), NULLIF(v_submission.state_province, ''), NULLIF(v_submission.country, ''))
+      );
+      
+      INSERT INTO locations (name, country, state_province, city, street_address, postal_code, latitude, longitude, timezone)
+      VALUES (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, updated_at = now() 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;
+    ELSE
+      RAISE NOTICE '⚠️  No location data found for park: % (slug: %)', v_park.name, v_park.slug;
+    END IF;
+  END LOOP;
+
+  RETURN jsonb_build_object('success', true, 'parks_updated', v_parks_updated, 'locations_created', v_locations_created);
+END;
+$$;
+
+-- Run the backfill
+DO $$
+DECLARE
+  v_result jsonb;
+BEGIN
+  SELECT backfill_park_locations() INTO v_result;
+  RAISE NOTICE '========================================';
+  RAISE NOTICE 'Backfill Complete! Result: %', v_result;
+  RAISE NOTICE '========================================';
+END $$;