Fixed mobile form

backend/src/features/fuel-logs/migrations/004_relax_odometer_and_trip_precision.sql

@@ -0,0 +1,31 @@
+-- Migration: 004_relax_odometer_and_trip_precision.sql
+-- Purpose: Align schema with enhanced API allowing trip-only entries
+-- Changes:
+--  - Make odometer nullable (trip-only logs permitted)
+--  - Change trip_distance to DECIMAL(10,3) to allow fractional distances
+
+BEGIN;
+
+-- Allow trip-only entries by making odometer nullable
+ALTER TABLE fuel_logs ALTER COLUMN odometer DROP NOT NULL;
+
+-- Allow fractional trip distances
+ALTER TABLE fuel_logs
+  ALTER COLUMN trip_distance TYPE DECIMAL(10,3)
+  USING CASE WHEN trip_distance IS NULL THEN NULL ELSE trip_distance::DECIMAL(10,3) END;
+
+-- Ensure the distance_required_check still exists; recreate defensively with correct semantics
+DO $$ 
+BEGIN
+  IF EXISTS (
+    SELECT 1 FROM pg_constraint WHERE conname = 'distance_required_check'
+  ) THEN
+    ALTER TABLE fuel_logs DROP CONSTRAINT distance_required_check;
+  END IF;
+  ALTER TABLE fuel_logs ADD CONSTRAINT distance_required_check
+    CHECK ((trip_distance IS NOT NULL AND trip_distance > 0) OR 
+           (odometer IS NOT NULL AND odometer > 0));
+END $$;
+
+COMMIT;
+