public async Task <bool> HasAccessToShoppingTrip(int userId, int shoppingTripId, CancellationToken cancellationToken)
{
return(await ShoppingTrips.AnyAsync(s => s.Id == shoppingTripId &&
Members.Any(m => m.UserId == userId && m.GroupId == s.MemberGroupId), cancellationToken));
}
public async Task <bool> IsCreatorOfShoppingTrip(int userId, int groupId, int shoppingTripId, CancellationToken cancellationToken)
{
return(await ShoppingTrips.AnyAsync(s => s.MemberUserId == userId &&
s.MemberGroupId == groupId &&
s.Id == shoppingTripId, cancellationToken));
}