EF Core 反映接口属性并忽略

Question

我试图通过 Fluent API 特定界面属性忽略，示例：

public interface ITest
{
    string IgnoreThat { get; set; }
}

public class Test : ITest
{
    public string Prop1 { get; set; }
    public string PropABC { get; set; }
    public string IgnoreThat { get; set; } = "My Info";
}

public class Test2 : ITest
{
    public string PropEFG { get; set; }
    public string IgnoreThat { get; set; } = "My Info2";
}

public class Test3 : ITest
{
    public string PropExample { get; set; }
    public string IgnoreThat { get; set; } = "My Info3";
}

如果在每个 class 中添加 DataAnnotation [NotMapped]，就很容易了，就像这样：

public class Example: ITest
{
    public string PropExample { get; set; }
    [NotMapped]
    public string IgnoreThat { get; set; } = "My Info3";
}

但是我有 800 个 classes，我想循环执行此操作，所以，我开始这段代码，但我不知道如何继续：

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
        base.OnModelCreating(modelBuilder);

        var props = modelBuilder.Model.GetEntityTypes()
                .SelectMany(t => t.GetProperties())
                .Where(p=>p.Name == "IgnoreThat")
                .ToList();

        foreach (var prop in props)
        {
            //How ignore the Property?
        }
}

Answer 1

您可以使用 ModelBuilder.Entity(Type entityType) 方法获取 EntityTypeBuilder 实例，然后使用它的 Ignore(string propertyName) 方法：

foreach (var prop in props)
{
    modelBuilder.Entity(prop.DeclaringEntityType.ClrType).Ignore(prop.Name);
}

EF Core 反映接口属性并忽略

EF Core Reflect interface properties and ignore

c#

entity-framework-core

ef-core-2.0