Refaktoriere Controller-Methoden zur Benutzer-, Event- und Menü-Datenverwaltung, indem die Logik in separate Service-Klassen ausgelagert wird. Implementiere eine verbesserte Fehlerbehandlung und sichere Rückgaben. Füge eine neue Route zur Passwortänderung im Benutzer-Router hinzu.
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Torsten Schulz (local)
276
services/EventService.js
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276
services/EventService.js
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const { Event, Institution, EventPlace, ContactPerson, EventType } = require('../models');
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const { Op } = require('sequelize');
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const moment = require('moment');
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class EventService {
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/**
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* Alle Events abrufen
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*/
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async getAllEvents() {
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try {
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const events = await Event.findAll({
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include: [
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{ model: Institution, as: 'institution' },
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{ model: EventPlace, as: 'eventPlace' },
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{ model: EventType, as: 'eventType' },
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{ model: ContactPerson, as: 'contactPersons', through: { attributes: [] } }
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],
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order: ['name', 'date', 'time']
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});
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return events;
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} catch (error) {
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console.error('Error fetching all events:', error);
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throw new Error('EVENTS_FETCH_ERROR');
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}
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}
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/**
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* Event anhand ID abrufen
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*/
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async getEventById(id) {
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try {
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if (!id || isNaN(parseInt(id))) {
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throw new Error('VALIDATION_ERROR: Ungültige ID');
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}
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const event = await Event.findByPk(id, {
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include: [
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{ model: Institution, as: 'institution' },
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{ model: EventPlace, as: 'eventPlace' },
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{ model: EventType, as: 'eventType' },
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{ model: ContactPerson, as: 'contactPersons', through: { attributes: [] } }
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]
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});
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if (!event) {
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throw new Error('EVENT_NOT_FOUND');
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}
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return event;
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} catch (error) {
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console.error('Error fetching event by ID:', error);
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throw new Error('EVENT_FETCH_ERROR');
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}
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}
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/**
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* Events filtern
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*/
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async filterEvents(filterData) {
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try {
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const { id, places, types, display } = filterData;
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// Basis-Where-Klausel für zukünftige Events
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const where = {
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[Op.or]: [
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{
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date: {
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[Op.or]: [
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{ [Op.gte]: moment().startOf('day').toDate() },
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{ [Op.eq]: null }
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]
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}
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},
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{ dayOfWeek: { [Op.gte]: 0 } }
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]
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};
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const order = [
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['date', 'ASC'],
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['time', 'ASC']
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];
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// Spezielle Filter
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if (id === 'all') {
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return await this._getAllFutureEvents(where, order);
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}
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if (id === 'home') {
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return await this._getHomepageEvents(where, order);
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}
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if (!id && !places && !types) {
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return { events: [], places: [], types: [], contactPersons: [] };
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}
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// Weitere Filter anwenden
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if (id) {
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where.id = id;
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}
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if (places && places.length > 0) {
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where.event_place_id = {
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[Op.in]: places.map(id => parseInt(id))
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};
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}
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if (types && types.length > 0) {
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where.eventTypeId = {
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[Op.in]: types.map(id => parseInt(id))
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};
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}
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const events = await Event.findAll({
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where,
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include: [
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{ model: Institution, as: 'institution' },
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{ model: EventPlace, as: 'eventPlace' },
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{ model: EventType, as: 'eventType' },
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{ model: ContactPerson, as: 'contactPersons', through: { attributes: [] } }
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],
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order: order,
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});
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// Events basierend auf Display-Feldern filtern
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const displayFields = display || [];
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const filteredEvents = this._filterEventFields(events, displayFields);
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return { events: filteredEvents };
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} catch (error) {
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console.error('Error filtering events:', error);
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throw new Error('EVENT_FILTER_ERROR');
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}
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}
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/**
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* Event erstellen
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*/
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async createEvent(eventData) {
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try {
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const { contactPersonIds, ...eventDataWithoutContacts } = eventData;
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// Validierung
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if (!eventDataWithoutContacts.name) {
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throw new Error('VALIDATION_ERROR: Event-Name ist erforderlich');
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}
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eventDataWithoutContacts.alsoOnHomepage = eventDataWithoutContacts.alsoOnHomepage ?? 0;
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const event = await Event.create(eventDataWithoutContacts);
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if (contactPersonIds && contactPersonIds.length > 0) {
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await event.setContactPersons(contactPersonIds);
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}
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return event;
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} catch (error) {
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console.error('Error creating event:', error);
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throw new Error('EVENT_CREATE_ERROR');
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}
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}
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/**
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* Event aktualisieren
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*/
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async updateEvent(id, eventData) {
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try {
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if (!id || isNaN(parseInt(id))) {
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throw new Error('VALIDATION_ERROR: Ungültige ID');
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}
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const { contactPersonIds, ...eventDataWithoutContacts } = eventData;
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const event = await Event.findByPk(id);
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if (!event) {
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throw new Error('EVENT_NOT_FOUND');
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}
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await event.update(eventDataWithoutContacts);
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if (contactPersonIds !== undefined) {
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await event.setContactPersons(contactPersonIds || []);
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}
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return event;
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} catch (error) {
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console.error('Error updating event:', error);
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throw new Error('EVENT_UPDATE_ERROR');
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}
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}
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/**
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* Event löschen
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*/
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async deleteEvent(id) {
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try {
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if (!id || isNaN(parseInt(id))) {
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throw new Error('VALIDATION_ERROR: Ungültige ID');
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}
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const event = await Event.findByPk(id);
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if (!event) {
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throw new Error('EVENT_NOT_FOUND');
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}
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await event.destroy();
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return { message: 'Event erfolgreich gelöscht' };
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} catch (error) {
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console.error('Error deleting event:', error);
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throw new Error('EVENT_DELETE_ERROR');
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}
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}
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/**
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* Alle zukünftigen Events abrufen
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*/
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async _getAllFutureEvents(where, order) {
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const events = await Event.findAll({
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where,
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include: [
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{ model: Institution, as: 'institution' },
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{ model: EventPlace, as: 'eventPlace' },
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{ model: EventType, as: 'eventType' },
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{ model: ContactPerson, as: 'contactPersons', through: { attributes: [] } }
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],
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order: order,
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logging: console.log
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});
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return { events };
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}
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/**
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* Homepage Events abrufen
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*/
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async _getHomepageEvents(where, order) {
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const events = await Event.findAll({
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where: {
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alsoOnHomepage: 1,
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date: { [Op.gte]: moment().startOf('day').toDate() }
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},
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include: [
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{ model: Institution, as: 'institution' },
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{ model: EventPlace, as: 'eventPlace' },
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{ model: EventType, as: 'eventType' },
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{ model: ContactPerson, as: 'contactPersons', through: { attributes: [] } },
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],
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order: order,
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});
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return { events };
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}
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/**
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* Event-Felder basierend auf Display-Feldern filtern
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*/
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_filterEventFields(events, displayFields) {
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return events.map(event => {
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const filteredEvent = { ...event.toJSON() };
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if (!displayFields.includes('name')) delete filteredEvent.name;
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if (!displayFields.includes('type')) delete filteredEvent.eventType;
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if (!displayFields.includes('place')) delete filteredEvent.eventPlace;
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if (!displayFields.includes('description')) delete filteredEvent.description;
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if (!displayFields.includes('time')) delete filteredEvent.time;
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if (!displayFields.includes('time')) delete filteredEvent.endTime;
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if (!displayFields.includes('contactPerson')) delete filteredEvent.contactPersons;
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if (!displayFields.includes('day')) delete filteredEvent.dayOfWeek;
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if (!displayFields.includes('institution')) delete filteredEvent.institution;
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return filteredEvent;
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});
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}
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}
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module.exports = new EventService();
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