如何在 asp.net 核心 2 collection 实体中 soft-delete 记录？

Question

我的问题是我无法在 collection SavePartnerRegistryResource 中 soft-delete 个实体。这些是我的实体资源，

public class SavePatientsRegistryResource {
     public long? PatientFileId { get; set; }
     public SavePatientsRegistryResource () {
     Partners = new Collection<SavePartnerRegistryResource> ();
     }
}
public class SavePartnerRegistryResource {
    public string RecordId { get; set; }
    public long? PatientFileId { get; set; }
    public long? PartnerFileId { get; set; }
    public string StartDate { get; set; }
    public string EndDate { get; set; }
}

我这样做的方式是我急切地将我的实体加载到我的控制器中我使用 automapper 从我的资源映射到我的实体。我在 AfterMap、

中处理我的 collection (add/remove)

.AfterMap((s, d) = >{
    foreach(PartnerRegistry partner in d.Partners.ToList()) {
    SavePartnerRegistryResource modelPartner = s.Partners.FirstOrDefault(c = >c.PatientFileId == partner.PatientFileId && c.PartnerFileId == partner.PartnerFileId);
    if (!s.Partners.Contains(modelPartner)) {
        d.Partners.Remove(partner);
    }
}

删除 SavePatientsRegistryResource 将软删除实体本身，而 collection BUT 从 collection SavePartnerRegistryResource 中删除将硬删除记录而不是将其标记为 soft-delete。两个实体在构建模型时都会收到 soft-delete 属性。

我在这里错过了什么？

我的覆盖保存方法是，

public override Task < int > SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken =
default(CancellationToken)) {
        OnBeforeSaving();
        return base.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
    }

private void OnBeforeSaving() {
    foreach(var entry in ChangeTracker.Entries()) {
        if (!EntitiesToExclude().Contains(entry.Entity.ToString())) {
            switch (entry.State) {
            case EntityState.Added:
                entry.CurrentValues["IsDeleted"] = false;
                break;
            case EntityState.Deleted:
                entry.State = EntityState.Modified;
                entry.CurrentValues["IsDeleted"] = true;
                foreach(var navigationEntry in entry.Navigations.Where(n = >!n.Metadata.IsDependentToPrincipal())) {
                    if (navigationEntry is CollectionEntry collectionEntry) {
                        foreach(var dependentEntry in collectionEntry.CurrentValue) { (Entry(dependentEntry)).State = EntityState.Modified;
                            (Entry(dependentEntry)).CurrentValues["IsDeleted"] = true;
                        }
                    } else {
                        var dependentEntry = navigationEntry.CurrentValue;
                        if (dependentEntry != null) { (Entry(dependentEntry)).State = EntityState.Modified;
                            (Entry(dependentEntry)).CurrentValues["IsDeleted"] = true;
                        }
                    }
                }
                break;
            }
        }

    }

}

Answer 1

我的解决方案是，

在映射过程中忽略集合，我删除了集合 AfterMap.

中的修改

我使用 AutoMapper.Collection

创建了 EqualityComparison 地图

CreateMap<SavePartnerRegistryResource, PartnerRegistry> ().EqualityComparison ((s, d) => s.PatientFileId == d.PatientFileId && s.PartnerFileId == d.PartnerFileId);

我将集合映射到一个单独的 List,

List<PartnerRegistry> patientPartnersModelDataList = mapper.Map<List<SavePartnerRegistryResource>, List<PartnerRegistry>> (model.Partners.ToList (), patient.Partners.ToList ());

现在我可以得到 added/removed/modified 个实体如下，

IEnumerable<PartnerRegistry> partnerRegistryToRemoveList = patient.Partners.ToList ().Except (patientPartnersModelDataList);
IEnumerable<PartnerRegistry> partnerRegistryToAddList = patientPartnersModelDataList.Except (patient.Partners.ToList ());
IEnumerable<PartnerRegistry> partnerRegistryToUpdateList = patient.Partners.ToList ().Intersect (patientPartnersModelDataList.ToList ());

然后我运行 foreach 遍历每个实体并使用上下文执行 Add/Remove 而不是修改 collection,

为了更新，我从 partnerRegistryToUpdateList

更新集合

如何在 asp.net 核心 2 collection 实体中 soft-delete 记录？

How to soft-delete records in entity with collection in asp.net core 2?

c#

soft-delete

asp.net-core