將 .NET Core 2.2 更新到 3.1 時缺少 .Relational() 方法

Question

我在 EF Core 2 中使用此代碼，現在嘗試更新 EF Core 並且找不到關系

public static void AddDefaultValueSqlConvention(this ModelBuilder modelBuilder, string propertyName,TypepropertyType, string defaultValueSql)
{
    foreach (IMutableEntityType entityType in modelBuilder.Model.GetEntityTypes())
    {
        IMutableProperty property = entityType.GetProperties()
                                              .SingleOrDefault(p => p.Name.Equals(propertyName, StringComparison.OrdinalIgnoreCase));

        if (property != null && property.ClrType == propertyType)
            property.SetColumnType().DefaultValueSql = defaultValueSql;
    }
}

Answer 1

嘗試這個：

public static void AddDefaultValueSqlConvention(this ModelBuilder modelBuilder, string propertyName, Type propertyType, string defaultValueSql)
{
    foreach (var entityType in modelBuilder.Model.GetEntityTypes())
    {
        var  property = entityType.GetProperties().SingleOrDefault(p => p.Name.Equals(propertyName, StringComparison.OrdinalIgnoreCase));

        if (property != null && property.ClrType == propertyType)
            property.SetDefaultValueSql(defaultValueSql);
    }
}