Refactor upcoming event filtering: Update buildUpcomingWhere function to compare dates at the date-only level, addressing timezone issues. This change enhances the accuracy of event retrieval and improves code clarity.

controllers/eventController.js

@@ -1,13 +1,14 @@
 const { Event, Institution, EventPlace, ContactPerson, EventType, EventContactPerson, sequelize } = require('../models');
-const { Op } = require('sequelize');
-const { startOfDay } = require('date-fns');
+const { Op, fn, col, where: sequelizeWhere } = require('sequelize');
+const { format, startOfDay } = require('date-fns');
 
 function buildUpcomingWhere() {
-  const today = startOfDay(new Date());
+  // Compare on date-only level to avoid timezone/DATETIME offset issues.
+  const todayDate = format(startOfDay(new Date()), 'yyyy-MM-dd');
   return {
     [Op.or]: [
       // Fixed-date events: only today or future.
-      { date: { [Op.gte]: today } },
+      sequelizeWhere(fn('DATE', col('date')), { [Op.gte]: todayDate }),
       // Recurring/undated events: date is null (dayOfWeek may be set).
       { date: { [Op.eq]: null } },
     ],
@@ -72,7 +73,7 @@ const filterEvents = async (req, res) => {
       const events = await Event.findAll({
         where: {
           alsoOnHomepage: 1,
-          date: { [Op.gte]: startOfDay(new Date()) }
+          ...buildUpcomingWhere(),
         },
         include: [
           { model: Institution, as: 'institution' },