What happened to AddOrUpdate in EF 7 / Core?

Question

I\'m writing a seed method using EntityFramework.Core 7.0.0-rc1-final.

What happened to the AddOrUpdate method of DbSet?

Answer 1

This solution is, I think, a simpler solution to this problem, if assuming a base entity class is a legit option. The simplicity comes from your domain entities implementing DomainEntityBase, which alleviates a lot of the complexities in the other suggested solutions.

public static class DbContextExtensions
{
    public static void AddOrUpdate(this DbSet dbSet, IEnumerable records) 
        where T : DomainEntityBase
    {
        foreach (var data in records)
        {
            var exists = dbSet.AsNoTracking().Any(x => x.Id == data.Id);
            if (exists)
            {
                dbSet.Update(data);
                continue;
            }
            dbSet.Add(data);
        }
    }
}

public class DomainEntityBase
{
    [Key]
    public Guid Id { get; set; }
}