Add endpoint that allows to move an event to a different calendar

src/models/calendar/events/events.service.ts

@@ -188,3 +188,26 @@ export const deleteEvent = async (event: Event): Promise<boolean> => {
 		await conn.end();
 	}
 };
+
+/**
+ * Moves an event to the specified calendar
+ * @param event The event to move. Has to have the target calendar set already.
+ */
+export const moveEvent = async (event: Event): Promise<boolean> => {
+	let conn = await NachklangCalendarDB.getConnection();
+	try {
+		const eventQuery  = 'UPDATE events SET calendar_id = ? WHERE event_id = ?';
+		const eventRes = await conn.execute(eventQuery, [event.calendarId, event.eventId]);
+
+		await conn.commit();
+
+		return eventRes.affectedRows === 1;
+	} catch (err) {
+		await conn.rollback();
+		throw err;
+	} finally {
+		// Return connection
+		await conn.commit();
+		await conn.end();
+	}
+}