Handling of event addons

app/Domains/Event/Controllers/DetailsController.php

@@ -224,6 +224,9 @@ class DetailsController extends CommonController {
             case 'by-participation-option':
                 $participants = $this->eventParticipants->groupByParticipationOption($event, $request);
                 break;
+            case 'by-addon':
+                $participants = $this->eventParticipants->groupByAddon($event, $request);
+                break;
             case 'signed-off':
                 $participants = $this->eventParticipants->getSignedOffParticipants($event, $request);
                 break;

app/Domains/Event/Views/Details.vue

@@ -5,6 +5,7 @@ import ShadowedBox from "../../../Views/Components/ShadowedBox.vue";
 import TabbedPage from "../../../Views/Components/TabbedPage.vue";
 import ParticipantsList from "./Partials/ParticipantsList.vue";
 import ParticipantsByOption from "./Partials/ParticipantsByOption.vue";
+import ParticipantsByAddon from "./Partials/ParticipantsByAddon.vue";
 import Overview from "./Partials/Overview.vue";
 
 const props = defineProps({
@@ -37,16 +38,16 @@ const tabs = [
         component: ParticipantsByOption,
         endpoint: "/api/v1/event/details/" + props.event.identifier + '/participants/by-participation-option',
     },
+    {
+        title: 'Teilis mit Zusatzoptionen',
+        component: ParticipantsByAddon,
+        endpoint: "/api/v1/event/details/" + props.event.identifier + '/participants/by-addon',
+    },
     {
         title: 'Abgemeldete Teilis',
         component: ParticipantsList,
         endpoint: "/api/v1/event/details/" + props.event.identifier + '/participants/signed-off',
     },
-    {
-        title: 'Zusätze',
-        component: ParticipantsList,
-        endpoint: "/api/v1/cost-unit/open/archived-cost-units",
-    },
 ]
 
 onMounted(() => {

app/Domains/Event/Views/Partials/ParticipantsByAddon.vue

@@ -0,0 +1,67 @@
+<script setup>
+import {computed, inject} from "vue";
+import ParticipantsList from "./ParticipantsList.vue";
+
+const props = defineProps({
+    data: {
+        type: Object,
+        default: () => ({participants: {}, event: {}, listType: ''}),
+    },
+});
+
+// Von TabbedPage bereitgestellt: erlaubt den Sprung zum Übersicht-Tab (Index 0), wo die
+// Zusatzoptionen konfiguriert werden.
+const selectTab = inject('selectTab', null);
+
+const hasAddons = computed(() => (props.data?.event?.addons?.length ?? 0) > 0);
+
+function goToOverview() {
+    if (selectTab) {
+        selectTab(0);
+    }
+}
+</script>
+
+<template>
+    <ParticipantsList v-if="hasAddons" :data="data" :show-group-mail="false"/>
+
+    <div v-else class="no-addons">
+        <h3>Keine Zusatzoptionen angelegt</h3>
+        <p>
+            Für diese Veranstaltung sind noch keine Zusatzoptionen angelegt. Sobald du unter
+            <strong>Übersicht → Zusatzoptionen</strong> Zusätze definierst, werden die Teilnehmenden hier nach
+            ihren gebuchten Zusätzen gruppiert.
+        </p>
+        <button v-if="selectTab" type="button" class="button" @click="goToOverview">
+            Zu den Zusatzoptionen
+        </button>
+    </div>
+</template>
+
+<style scoped>
+.no-addons {
+    max-width: 640px;
+    margin: 20px auto;
+    padding: 24px;
+    background: #f8fafc;
+    border: 1px solid #e5e7eb;
+    border-radius: 10px;
+    text-align: center;
+}
+
+.no-addons p {
+    color: #4b5563;
+    line-height: 1.6;
+}
+
+.button {
+    margin-top: 12px;
+    padding: 8px 18px;
+    background: #2563eb;
+    color: #fff;
+    border: none;
+    border-radius: 8px;
+    font-weight: 600;
+    cursor: pointer;
+}
+</style>