Add event teaser data attribute listener

src/EventListener/EventTeaserDataAttributesListener.php

@@ -0,0 +1,104 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MummertMedia\EventManagerBundle\EventListener;
+
+use Contao\CalendarEventsModel;
+use Contao\CoreBundle\DependencyInjection\Attribute\AsHook;
+use Contao\Module;
+use Doctrine\DBAL\Connection;
+use Doctrine\DBAL\Exception;
+use Doctrine\DBAL\ParameterType;
+
+#[AsHook('getAllEvents')]
+class EventTeaserDataAttributesListener
+{
+    public function __construct(
+        private readonly Connection $connection,
+    ) {
+    }
+
+    public function __invoke(array $events, array $calendars, int $start, int $end, Module $module): array
+    {
+        foreach ($events as $dayKey => $eventsPerDay) {
+            foreach ($eventsPerDay as $timeKey => $eventsPerTime) {
+                foreach ($eventsPerTime as $index => $event) {
+                    if (!isset($event['id'])) {
+                        $events[$dayKey][$timeKey][$index]['location_id'] = null;
+                        $events[$dayKey][$timeKey][$index]['event_tags'] = '';
+                        $events[$dayKey][$timeKey][$index]['event_org'] = '';
+
+                        continue;
+                    }
+
+                    $eventId = (int) $event['id'];
+
+                    if (isset($event['location_id']) && '' !== (string) $event['location_id']) {
+                        $events[$dayKey][$timeKey][$index]['location_id'] = (int) $event['location_id'];
+                    } else {
+                        $eventModel = CalendarEventsModel::findById($eventId);
+                        $events[$dayKey][$timeKey][$index]['location_id'] = $eventModel ? (int) $eventModel->location_id : null;
+                    }
+
+                    $events[$dayKey][$timeKey][$index]['event_tags'] = implode(',', $this->fetchTagIds($eventId));
+                    $events[$dayKey][$timeKey][$index]['event_org'] = implode(',', $this->fetchOrganizationIds($eventId));
+                }
+            }
+        }
+
+        return $events;
+    }
+
+    /** @return list<int> */
+    private function fetchTagIds(int $eventId): array
+    {
+        if ($eventId <= 0) {
+            return [];
+        }
+
+        $ids = $this->connection->createQueryBuilder()
+            ->select('tag_id')
+            ->from('tl_tags_rel')
+            ->where('ptable = :ptable')
+            ->andWhere('field = :field')
+            ->andWhere('pid = :pid')
+            ->setParameter('ptable', 'tl_calendar_events')
+            ->setParameter('field', 'tags')
+            ->setParameter('pid', $eventId, ParameterType::INTEGER)
+            ->orderBy('tag_id', 'ASC')
+            ->executeQuery()
+            ->fetchFirstColumn();
+
+        return array_values(array_unique(array_map('intval', $ids)));
+    }
+
+    /** @return list<int> */
+    private function fetchOrganizationIds(int $eventId): array
+    {
+        if ($eventId <= 0) {
+            return [];
+        }
+
+        $tables = ['tl_events_organization', 'tl_calendar_events_organization'];
+
+        foreach ($tables as $table) {
+            try {
+                $ids = $this->connection->createQueryBuilder()
+                    ->select('organization_id')
+                    ->from($table)
+                    ->where('event_id = :eventId')
+                    ->setParameter('eventId', $eventId, ParameterType::INTEGER)
+                    ->orderBy('organization_id', 'ASC')
+                    ->executeQuery()
+                    ->fetchFirstColumn();
+
+                return array_values(array_unique(array_map('intval', $ids)));
+            } catch (Exception) {
+                continue;
+            }
+        }
+
+        return [];
+    }
+}