c# - An entity with an interface property - is there a better approach when using Entity Framework Core? - Stack Overflow

I'm currently running into an issue where the structure of my object is not conducive with what is expected by Entity Framework Core (v7), as my model has an interface as a property. I'm wondering if there is a better approach to achieve what I am trying to do.

Here is my (abridged) object structure:

public class ReviewProcess 
{
    public IReviewStageType CurrentStage { get; private set; }
}

public class ManagerReview : IReviewStageType
{
    public string Name { get; private set;}
    // State/actions for manager review
}

public class SeniorManagerReview : IReviewStageType
{
    public string Name { get; private set;}
    // State/actions for senior manager review
}

The different IReviewStageType interfaces define different actions and behaviour that can be executed on the ReviewProcess. However, I am trying to persist this data to a relational database with EF Core.

I thought I could create an IEntityTypeConfiguration where I could map the IReviewStageType.Name to my database, so my ReviewProcess table would look like: [Id, ReviewStageName]. And then set up some logic to convert the Name back to the relevant concrete type (ManagerReview/SeniorManagerReview) on reading back from the database, something like this (abridged):

public void Configure(EntityTypeBuilder<ReviewProcess> builder)
{
    builder.OwnsOne(r => r.CurrentStage, stage =>
    {
        stage.Property(s => s.Name).HasColumnName("ReviewStage_Name");
    });
}

I am getting an error:

The specified type '' must be a non-interface reference type to be used as an entity type

Is there a way to achieve what I am trying to do? Or should I be approaching this from a different perspective, e.g. not with an interface? I'd welcome any suggestions. Thanks!