sanAntonioSeniorGolf/API/Services/EventService.cs

using API.Authentication.Interfaces;
using API.DTO.Base;
using DAL.Contexts;
using DAL.Models;
using DAL.Models.Audits;

namespace API.Services
{
	public class EventService : ServiceBase<EventService, EventDTO, Event, AuditEvent, IEventAuthentication>
	{
		public EventService(ILogger<EventService> logger, SASGContext context, IEventAuthentication auth) : base(logger, context, auth)
		{
		}
		
		public bool? isSignedUp(User user, ulong eventId)
		{
			if (!_auth.canCheckSelfSignup(user))
				return null;

			return Context.Set<Signup>().Any(x => x.userId == user.id && x.eventId == eventId);
		}
	}
}