diff --git a/supabase/migrations/20251108_fix_missing_category_in_rpc_query.sql b/supabase/migrations/20251108_fix_missing_category_in_rpc_query.sql
new file mode 100644
index 00000000..ca39099d
--- /dev/null
+++ b/supabase/migrations/20251108_fix_missing_category_in_rpc_query.sql
@@ -0,0 +1,485 @@
+-- ============================================================================
+-- CRITICAL FIX: Add missing `category` field to RPC SELECT query
+-- ============================================================================
+-- Bug: The process_approval_transaction function reads ride and ride_model
+-- data but doesn't SELECT the category field, causing NULL to be passed
+-- to create_entity_from_submission, which violates NOT NULL constraints.
+--
+-- This will cause ALL ride and ride_model approvals to fail with:
+-- "ERROR: null value in column "category" violates not-null constraint"
+-- ============================================================================
+
+-- Drop and recreate with category fields in SELECT
+DO $$
+DECLARE
+  func_rec RECORD;
+BEGIN
+  FOR func_rec IN
+    SELECT oid::regprocedure::text as func_signature
+    FROM pg_proc
+    WHERE proname = 'process_approval_transaction'
+      AND pg_function_is_visible(oid)
+  LOOP
+    EXECUTE format('DROP FUNCTION IF EXISTS %s CASCADE', func_rec.func_signature);
+  END LOOP;
+END $$;
+
+CREATE FUNCTION process_approval_transaction(
+  p_submission_id UUID,
+  p_item_ids UUID[],
+  p_moderator_id UUID,
+  p_submitter_id UUID,
+  p_request_id TEXT DEFAULT NULL
+)
+RETURNS JSONB
+LANGUAGE plpgsql
+SECURITY DEFINER
+SET search_path = public
+AS $$
+DECLARE
+  v_start_time TIMESTAMPTZ;
+  v_result JSONB;
+  v_item RECORD;
+  v_item_data JSONB;
+  v_resolved_refs JSONB;
+  v_entity_id UUID;
+  v_approval_results JSONB[] := ARRAY[]::JSONB[];
+  v_final_status TEXT;
+  v_all_approved BOOLEAN := TRUE;
+  v_some_approved BOOLEAN := FALSE;
+  v_items_processed INTEGER := 0;
+BEGIN
+  v_start_time := clock_timestamp();
+
+  RAISE NOTICE '[%] Starting atomic approval transaction for submission %',
+    COALESCE(p_request_id, 'NO_REQUEST_ID'),
+    p_submission_id;
+
+  -- ========================================================================
+  -- STEP 1: Set session variables (transaction-scoped with is_local=true)
+  -- ========================================================================
+  PERFORM set_config('app.current_user_id', p_submitter_id::text, true);
+  PERFORM set_config('app.submission_id', p_submission_id::text, true);
+  PERFORM set_config('app.moderator_id', p_moderator_id::text, true);
+
+  -- ========================================================================
+  -- STEP 2: Validate submission ownership and lock status
+  -- ========================================================================
+  IF NOT EXISTS (
+    SELECT 1 FROM content_submissions
+    WHERE id = p_submission_id
+      AND (assigned_to = p_moderator_id OR assigned_to IS NULL)
+      AND status IN ('pending', 'partially_approved')
+  ) THEN
+    RAISE EXCEPTION 'Submission not found, locked by another moderator, or already processed'
+      USING ERRCODE = '42501';
+  END IF;
+
+  -- ========================================================================
+  -- STEP 3: Process each item sequentially within this transaction
+  -- ========================================================================
+  FOR v_item IN
+    SELECT
+      si.*,
+      ps.name as park_name,
+      ps.slug as park_slug,
+      ps.description as park_description,
+      ps.park_type,
+      ps.status as park_status,
+      ps.location_id,
+      ps.operator_id,
+      ps.property_owner_id,
+      ps.opening_date as park_opening_date,
+      ps.closing_date as park_closing_date,
+      ps.opening_date_precision as park_opening_date_precision,
+      ps.closing_date_precision as park_closing_date_precision,
+      ps.website_url as park_website_url,
+      ps.phone as park_phone,
+      ps.email as park_email,
+      ps.banner_image_url as park_banner_image_url,
+      ps.banner_image_id as park_banner_image_id,
+      ps.card_image_url as park_card_image_url,
+      ps.card_image_id as park_card_image_id,
+      psl.name as location_name,
+      psl.street_address as location_street_address,
+      psl.city as location_city,
+      psl.state_province as location_state_province,
+      psl.country as location_country,
+      psl.postal_code as location_postal_code,
+      psl.latitude as location_latitude,
+      psl.longitude as location_longitude,
+      psl.timezone as location_timezone,
+      psl.display_name as location_display_name,
+      rs.name as ride_name,
+      rs.slug as ride_slug,
+      rs.park_id as ride_park_id,
+      rs.category as ride_category,
+      rs.ride_type,
+      rs.status as ride_status,
+      rs.manufacturer_id,
+      rs.ride_model_id,
+      rs.opening_date as ride_opening_date,
+      rs.closing_date as ride_closing_date,
+      rs.opening_date_precision as ride_opening_date_precision,
+      rs.closing_date_precision as ride_closing_date_precision,
+      rs.description as ride_description,
+      rs.banner_image_url as ride_banner_image_url,
+      rs.banner_image_id as ride_banner_image_id,
+      rs.card_image_url as ride_card_image_url,
+      rs.card_image_id as ride_card_image_id,
+      cs.name as company_name,
+      cs.slug as company_slug,
+      cs.description as company_description,
+      cs.website_url as company_website_url,
+      cs.founded_year,
+      cs.banner_image_url as company_banner_image_url,
+      cs.banner_image_id as company_banner_image_id,
+      cs.card_image_url as company_card_image_url,
+      cs.card_image_id as company_card_image_id,
+      rms.name as ride_model_name,
+      rms.slug as ride_model_slug,
+      rms.manufacturer_id as ride_model_manufacturer_id,
+      rms.category as ride_model_category,
+      rms.ride_type as ride_model_ride_type,
+      rms.description as ride_model_description,
+      rms.banner_image_url as ride_model_banner_image_url,
+      rms.banner_image_id as ride_model_banner_image_id,
+      rms.card_image_url as ride_model_card_image_url,
+      rms.card_image_id as ride_model_card_image_id,
+      tes.entity_type as timeline_entity_type,
+      tes.entity_id as timeline_entity_id,
+      tes.event_type as timeline_event_type,
+      tes.event_date as timeline_event_date,
+      tes.event_date_precision as timeline_event_date_precision,
+      tes.title as timeline_title,
+      tes.description as timeline_description,
+      tes.from_value as timeline_from_value,
+      tes.to_value as timeline_to_value,
+      tes.from_entity_id as timeline_from_entity_id,
+      tes.to_entity_id as timeline_to_entity_id,
+      tes.from_location_id as timeline_from_location_id,
+      tes.to_location_id as timeline_to_location_id
+    FROM submission_items si
+    LEFT JOIN park_submissions ps ON si.park_submission_id = ps.id
+    LEFT JOIN park_submission_locations psl ON ps.id = psl.park_submission_id
+    LEFT JOIN ride_submissions rs ON si.ride_submission_id = rs.id
+    LEFT JOIN company_submissions cs ON si.company_submission_id = cs.id
+    LEFT JOIN ride_model_submissions rms ON si.ride_model_submission_id = rms.id
+    LEFT JOIN timeline_event_submissions tes ON si.timeline_event_submission_id = tes.id
+    WHERE si.id = ANY(p_item_ids)
+    ORDER BY si.order_index, si.created_at
+  LOOP
+    BEGIN
+      v_items_processed := v_items_processed + 1;
+
+      -- Build item data based on entity type
+      IF v_item.item_type = 'park' THEN
+        v_item_data := jsonb_build_object(
+          'name', v_item.park_name,
+          'slug', v_item.park_slug,
+          'description', v_item.park_description,
+          'park_type', v_item.park_type,
+          'status', v_item.park_status,
+          'location_id', v_item.location_id,
+          'operator_id', v_item.operator_id,
+          'property_owner_id', v_item.property_owner_id,
+          'opening_date', v_item.park_opening_date,
+          'closing_date', v_item.park_closing_date,
+          'opening_date_precision', v_item.park_opening_date_precision,
+          'closing_date_precision', v_item.park_closing_date_precision,
+          'website_url', v_item.park_website_url,
+          'phone', v_item.park_phone,
+          'email', v_item.park_email,
+          'banner_image_url', v_item.park_banner_image_url,
+          'banner_image_id', v_item.park_banner_image_id,
+          'card_image_url', v_item.park_card_image_url,
+          'card_image_id', v_item.park_card_image_id,
+          'location_name', v_item.location_name,
+          'location_street_address', v_item.location_street_address,
+          'location_city', v_item.location_city,
+          'location_state_province', v_item.location_state_province,
+          'location_country', v_item.location_country,
+          'location_postal_code', v_item.location_postal_code,
+          'location_latitude', v_item.location_latitude,
+          'location_longitude', v_item.location_longitude,
+          'location_timezone', v_item.location_timezone,
+          'location_display_name', v_item.location_display_name
+        );
+      ELSIF v_item.item_type = 'ride' THEN
+        v_item_data := jsonb_build_object(
+          'name', v_item.ride_name,
+          'slug', v_item.ride_slug,
+          'park_id', v_item.ride_park_id,
+          'category', v_item.ride_category,
+          'ride_type', v_item.ride_type,
+          'status', v_item.ride_status,
+          'manufacturer_id', v_item.manufacturer_id,
+          'ride_model_id', v_item.ride_model_id,
+          'opening_date', v_item.ride_opening_date,
+          'closing_date', v_item.ride_closing_date,
+          'opening_date_precision', v_item.ride_opening_date_precision,
+          'closing_date_precision', v_item.ride_closing_date_precision,
+          'description', v_item.ride_description,
+          'banner_image_url', v_item.ride_banner_image_url,
+          'banner_image_id', v_item.ride_banner_image_id,
+          'card_image_url', v_item.ride_card_image_url,
+          'card_image_id', v_item.ride_card_image_id
+        );
+      ELSIF v_item.item_type IN ('manufacturer', 'operator', 'property_owner', 'designer') THEN
+        v_item_data := jsonb_build_object(
+          'name', v_item.company_name,
+          'slug', v_item.company_slug,
+          'description', v_item.company_description,
+          'website_url', v_item.company_website_url,
+          'founded_year', v_item.founded_year,
+          'banner_image_url', v_item.company_banner_image_url,
+          'banner_image_id', v_item.company_banner_image_id,
+          'card_image_url', v_item.company_card_image_url,
+          'card_image_id', v_item.company_card_image_id
+        );
+      ELSIF v_item.item_type = 'ride_model' THEN
+        v_item_data := jsonb_build_object(
+          'name', v_item.ride_model_name,
+          'slug', v_item.ride_model_slug,
+          'manufacturer_id', v_item.ride_model_manufacturer_id,
+          'category', v_item.ride_model_category,
+          'ride_type', v_item.ride_model_ride_type,
+          'description', v_item.ride_model_description,
+          'banner_image_url', v_item.ride_model_banner_image_url,
+          'banner_image_id', v_item.ride_model_banner_image_id,
+          'card_image_url', v_item.ride_model_card_image_url,
+          'card_image_id', v_item.ride_model_card_image_id
+        );
+      ELSIF v_item.item_type IN ('timeline_event', 'milestone') THEN
+        v_item_data := jsonb_build_object(
+          'entity_type', v_item.timeline_entity_type,
+          'entity_id', v_item.timeline_entity_id,
+          'event_type', v_item.timeline_event_type,
+          'event_date', v_item.timeline_event_date,
+          'event_date_precision', v_item.timeline_event_date_precision,
+          'title', v_item.timeline_title,
+          'description', v_item.timeline_description,
+          'from_value', v_item.timeline_from_value,
+          'to_value', v_item.timeline_to_value,
+          'from_entity_id', v_item.timeline_from_entity_id,
+          'to_entity_id', v_item.timeline_to_entity_id,
+          'from_location_id', v_item.timeline_from_location_id,
+          'to_location_id', v_item.timeline_to_location_id
+        );
+      ELSE
+        RAISE EXCEPTION 'Unsupported item_type: %', v_item.item_type;
+      END IF;
+
+      -- ======================================================================
+      -- Resolve temp refs and update v_item_data with actual entity IDs
+      -- ======================================================================
+      v_resolved_refs := resolve_temp_refs_for_item(v_item.id, p_submission_id);
+
+      IF v_resolved_refs IS NOT NULL AND jsonb_typeof(v_resolved_refs) = 'object' THEN
+        IF v_item.item_type = 'park' THEN
+          IF v_resolved_refs ? 'operator' AND (v_item_data->>'operator_id') IS NULL THEN
+            v_item_data := v_item_data || jsonb_build_object('operator_id', v_resolved_refs->>'operator');
+            RAISE NOTICE 'Resolved park.operator_id → %', v_resolved_refs->>'operator';
+          END IF;
+          IF v_resolved_refs ? 'property_owner' AND (v_item_data->>'property_owner_id') IS NULL THEN
+            v_item_data := v_item_data || jsonb_build_object('property_owner_id', v_resolved_refs->>'property_owner');
+            RAISE NOTICE 'Resolved park.property_owner_id → %', v_resolved_refs->>'property_owner';
+          END IF;
+        END IF;
+
+        IF v_item.item_type = 'ride' THEN
+          IF v_resolved_refs ? 'park' AND (v_item_data->>'park_id') IS NULL THEN
+            v_item_data := v_item_data || jsonb_build_object('park_id', v_resolved_refs->>'park');
+            RAISE NOTICE 'Resolved ride.park_id → %', v_resolved_refs->>'park';
+          END IF;
+          IF v_resolved_refs ? 'manufacturer' AND (v_item_data->>'manufacturer_id') IS NULL THEN
+            v_item_data := v_item_data || jsonb_build_object('manufacturer_id', v_resolved_refs->>'manufacturer');
+            RAISE NOTICE 'Resolved ride.manufacturer_id → %', v_resolved_refs->>'manufacturer';
+          END IF;
+          IF v_resolved_refs ? 'ride_model' AND (v_item_data->>'ride_model_id') IS NULL THEN
+            v_item_data := v_item_data || jsonb_build_object('ride_model_id', v_resolved_refs->>'ride_model');
+            RAISE NOTICE 'Resolved ride.ride_model_id → %', v_resolved_refs->>'ride_model';
+          END IF;
+        END IF;
+
+        IF v_item.item_type = 'ride_model' THEN
+          IF v_resolved_refs ? 'manufacturer' AND (v_item_data->>'manufacturer_id') IS NULL THEN
+            v_item_data := v_item_data || jsonb_build_object('manufacturer_id', v_resolved_refs->>'manufacturer');
+            RAISE NOTICE 'Resolved ride_model.manufacturer_id → %', v_resolved_refs->>'manufacturer';
+          END IF;
+        END IF;
+      END IF;
+
+      -- Execute action based on action_type (now with resolved foreign keys)
+      IF v_item.action_type = 'create' THEN
+        v_entity_id := create_entity_from_submission(
+          v_item.item_type,
+          v_item_data,
+          p_submitter_id
+        );
+      ELSIF v_item.action_type = 'update' THEN
+        v_entity_id := update_entity_from_submission(
+          v_item.item_type,
+          v_item_data,
+          v_item.target_entity_id,
+          p_submitter_id
+        );
+      ELSIF v_item.action_type = 'delete' THEN
+        PERFORM delete_entity_from_submission(
+          v_item.item_type,
+          v_item.target_entity_id,
+          p_submitter_id
+        );
+        v_entity_id := v_item.target_entity_id;
+      ELSE
+        RAISE EXCEPTION 'Unknown action_type: %', v_item.action_type;
+      END IF;
+
+      UPDATE submission_items
+      SET
+        status = 'approved',
+        approved_entity_id = v_entity_id,
+        updated_at = NOW()
+      WHERE id = v_item.id;
+
+      v_approval_results := array_append(
+        v_approval_results,
+        jsonb_build_object(
+          'itemId', v_item.id,
+          'entityId', v_entity_id,
+          'itemType', v_item.item_type,
+          'actionType', v_item.action_type,
+          'success', true
+        )
+      );
+
+      v_some_approved := TRUE;
+
+      RAISE NOTICE '[%] Approved item % (type=%s, action=%s, entityId=%s)',
+        COALESCE(p_request_id, 'NO_REQUEST_ID'),
+        v_item.id,
+        v_item.item_type,
+        v_item.action_type,
+        v_entity_id;
+
+    EXCEPTION WHEN OTHERS THEN
+      RAISE WARNING '[%] Item % failed: % (SQLSTATE: %)',
+        COALESCE(p_request_id, 'NO_REQUEST_ID'),
+        v_item.id,
+        SQLERRM,
+        SQLSTATE;
+
+      UPDATE submission_items
+      SET
+        status = 'rejected',
+        rejection_reason = SQLERRM,
+        updated_at = NOW()
+      WHERE id = v_item.id;
+
+      v_approval_results := array_append(
+        v_approval_results,
+        jsonb_build_object(
+          'itemId', v_item.id,
+          'itemType', v_item.item_type,
+          'actionType', v_item.action_type,
+          'success', false,
+          'error', SQLERRM
+        )
+      );
+
+      v_all_approved := FALSE;
+    END;
+  END LOOP;
+
+  v_final_status := CASE
+    WHEN v_all_approved THEN 'approved'
+    WHEN v_some_approved THEN 'partially_approved'
+    ELSE 'rejected'
+  END;
+
+  UPDATE content_submissions
+  SET
+    status = v_final_status,
+    reviewer_id = p_moderator_id,
+    reviewed_at = NOW(),
+    assigned_to = NULL,
+    locked_until = NULL
+  WHERE id = p_submission_id;
+
+  INSERT INTO approval_transaction_metrics (
+    submission_id,
+    moderator_id,
+    submitter_id,
+    items_count,
+    duration_ms,
+    success,
+    request_id
+  ) VALUES (
+    p_submission_id,
+    p_moderator_id,
+    p_submitter_id,
+    array_length(p_item_ids, 1),
+    EXTRACT(EPOCH FROM (clock_timestamp() - v_start_time)) * 1000,
+    v_all_approved,
+    p_request_id
+  );
+
+  v_result := jsonb_build_object(
+    'success', TRUE,
+    'results', to_jsonb(v_approval_results),
+    'submissionStatus', v_final_status,
+    'itemsProcessed', v_items_processed,
+    'allApproved', v_all_approved,
+    'someApproved', v_some_approved
+  );
+
+  PERFORM set_config('app.current_user_id', '', true);
+  PERFORM set_config('app.submission_id', '', true);
+  PERFORM set_config('app.moderator_id', '', true);
+
+  RAISE NOTICE '[%] Transaction completed successfully in %ms',
+    COALESCE(p_request_id, 'NO_REQUEST_ID'),
+    EXTRACT(EPOCH FROM (clock_timestamp() - v_start_time)) * 1000;
+
+  RETURN v_result;
+
+EXCEPTION WHEN OTHERS THEN
+  RAISE WARNING '[%] Transaction failed, rolling back: % (SQLSTATE: %)',
+    COALESCE(p_request_id, 'NO_REQUEST_ID'),
+    SQLERRM,
+    SQLSTATE;
+
+  INSERT INTO approval_transaction_metrics (
+    submission_id,
+    moderator_id,
+    submitter_id,
+    items_count,
+    duration_ms,
+    success,
+    rollback_triggered,
+    error_message,
+    request_id
+  ) VALUES (
+    p_submission_id,
+    p_moderator_id,
+    p_submitter_id,
+    array_length(p_item_ids, 1),
+    EXTRACT(EPOCH FROM (clock_timestamp() - v_start_time)) * 1000,
+    FALSE,
+    TRUE,
+    SQLERRM,
+    p_request_id
+  );
+
+  PERFORM set_config('app.current_user_id', '', true);
+  PERFORM set_config('app.submission_id', '', true);
+  PERFORM set_config('app.moderator_id', '', true);
+
+  RAISE;
+END;
+$$;
+
+GRANT EXECUTE ON FUNCTION process_approval_transaction TO authenticated;
+
+COMMENT ON FUNCTION process_approval_transaction IS
+  'Fixed: Now correctly reads and passes category field for rides and ride_models';