如何在 EF Core 配置中排除所有實體類型的屬性？

Question

我的所有模型都有一個名為RelatedItems的動態屬性。 我想動態忽略所有實體類型的這些屬性。

因此我創建了一個基本的DatabaseContext來集中這個約定。

public abstract DatabaseContext : DbContext
{

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            var allEntities = modelBuilder.Model.GetEntityTypes();

            foreach (var entity in allEntities)
            {
                entity.Ignore("RelatedItems");
            }
        }
}

但這給了我這個錯誤：

DatabaseContext.cs(23,24): 錯誤 CS1061: 'IMutableEntityType' 不包含
'Ignore' 的定義並且沒有可訪問的擴展方法 'Ignore' 接受第一個
可以找到類型為“IMutableEntityType”的參數

如何忽略所有模型上的屬性？

Answer 1

// Get all entities and filter the ones who has the RelatedItems properties
// This filter is not required, but for safety purpose I recomend to use it
// otherwise you could end up getting some weird errors during migration scaffolding
// In my case, without it, the scaffold command alarmed about an Enum that is not even related
var allEntities = modelBuilder.Model.GetEntityTypes()
                                            .Where(x => x.GetProperties().Count(x => x.Name == "RelatedItems") > 0);


foreach (var entity in allEntities)
{
    // Ignore property
    modelBuilder.Entity(entity.Name).Ignore("RelatedItems");
}