我正在Visual Studio 2017中使用ASP.Net Core MVC和Entity Framework Core。
我们正在使用非常简单的存储库模式。
我已经进入这个项目八个月了，这是我第一次对这个实体的一个属性遇到这个奇怪的问题，该实体在UpdateChanges之后通过SaveChanges保存到数据库中。
这是流程。
1）我有一个Create controller动作来保存一个称为Recommendation的新实体。 该建议书有一个称为发现的上级实体。 创建新建议时，我必须更新父调查结果的状态。查找实体还具有一个称为审计的父实体。 在编辑查找状态时，我还必须更新审核状态。
这是一些代码。
[HttpPost]
public IActionResult Create(CreateIntRecommendationVM createIntRecommendationVM)
{
int findingId = createIntRecommendationVM.Finding.FindingId;
Finding finding = _findingRepo.Findings
.Include(f => f.Audit)
.Where(f => f.FindingId == findingId)
.FirstOrDefault();
if (RecModelStateIsValid(ModelState))
{
ClaimsPrincipal user = HttpContext.Request.HttpContext.User;
short staffId = short.Parse(user.Claims.Single(c => c.Type == "StaffId").Value);
Recommendation recommendation = createIntRecommendationVM.Recommendation;
recommendation.RecFindingId = findingId;
#region Get Recommendation Number
recommendation.RecCd = GetRecommendationNumber(findingId);
#endregion
recommendation.RecStatusId = 10;
recommendation.RecStaffId = staffId;
recommendation.RecLastUpdateDt = DateTime.Now;
_recommendationRepo.Add(recommendation);
_recommendationRepo.SaveChanges();
bool unresolvedFinding = false;
bool unresolvedAudit = false;
int? oldFindingStatus = finding.FindingStatusId;
if (finding.FindingStatusId != 10)
{
finding.FindingStatusId = 10;
unresolvedFinding = true;
}
if (oldFindingStatus != 10 && finding.Audit.StatusID != 10)
{
finding.Audit.StatusID = 10;
unresolvedAudit = true;
}
_findingRepo.Update(finding);
_findingRepo.SaveChanges();
当我在调试模式下运行并设置一个断点并在逐步检查时，我一定要将find.FindingStatusId设置为10，并将find.Audit.StatusID设置为10。
_findingRepo.Update(finding);
点击此仓库：
public class FindingRepository : IFindingRepository
{
private ApplicationDbContext context;
public FindingRepository(ApplicationDbContext ctx)
{
context = ctx;
}
public IQueryable<Finding> Findings => context.Findings;
public Finding Get(int id)
{
Finding finding = context.Findings.Find(id);
return finding;
}
public void Add(Finding finding)
{
context.Findings.Add(finding);
}
public void Update(Finding finding)
{
context.Findings.Update(finding);
}
public void Delete(int id)
{
context.Database.ExecuteSqlCommand("sp_delete_finding_int @finding_id = {0}", id);
}
public void SaveChanges()
{
context.SaveChanges();
}
}
这是奇怪的部分。 find.Audit.StatusID在数据库中正在更新。 find.FindingStatusId不是。
因此，对于该实体，我发送到存储库的Update方法的“查找”，没有保存要更新的实体的“ FindingStatusId”。 但是，“查找”实体的父级“审计”，“ StatusID”正在保存。
我无法终生弄清这里发生的事情。
为完整起见，我将发布“查找和审计实体模型”。
[Table("finding")]
public class Finding
{
private string _findingText;
[Key]
[Column("finding_id")]
public int FindingId { get; set; }
[Column("finding_audit_id")]
public int FindingAuditId { get; set; }
[Column("finding_cd")]
[Display(Name = "Finding #")]
[StringLength(15)]
public string FindingCd { get; set; }
[Column("finding_tx")]
[Required(ErrorMessage = "Description Required")]
[StringLength(7000)]
public string FindingText
{
get
{
return _findingText;
}
set
{
_findingText = value?.Trim();
}
}
[Column("finding_page_cd")]
[StringLength(100)]
public string FindingPageCd { get; set; }
[Column("finding_joint_cd")]
public string FindingJointCd { get; set; }
[Column("finding_compliance_tx")]
[StringLength(20)]
public string FindingComplianceText { get; set; }
[Column("finding_prior_year_cd")]
[Display(Name = "Repeat Finding")]
public string FindingPriorYearCd { get; set; }
[Column("finding_decision_cd")]
public string FindingDecisionCd { get; set; }
[Column("finding_request_decision_cd")]
public string FindingRequestDecisionCd { get; set; }
[Column("finding_decision_ogc_concur_cd")]
public string FindingDecisionOgcConcurCd { get; set; }
[Column("finding_pdl_id")]
public int? FindingPdlId { get; set; }
[Display(Name = "Significant")]
[Column("finding_significant_cd")]
public string FindingSignificantCd { get; set; }
[Column("finding_on_stay_cd")]
public string FindingOnStayCd { get; set; }
[Column("finding_stay_request_cd")]
public string FindingStayRequestCd { get; set; }
[Column("finding_last_update_dt")]
public DateTime FindingLastUpdateDate { get; set; }
[Column("finding_update_staff_id")]
public short? FindingUpdateStaffId { get; set; }
[Column("finding_cd_org")]
public string FindingCdOrg { get; set; }
[NotMapped]
public string RepeatingYearsDisplayList
{
get
{
if (RepeatingYears?.Count > 0)
{
string repeatingYears = string.Empty;
RepeatingYears.ForEach(ry =>
repeatingYears += $"{ry.FindingFyCd}, ");
return repeatingYears.Remove(repeatingYears.Length - 2);
}
return string.Empty;
}
}
#region Navigation Properties
[Column("finding_finding_type_id")]
public short? FindingTypeId { get; set; }
[ForeignKey("FindingTypeId")]
public FindingType FindingType { get; set; }
[Column("finding_status_id")]
public int? FindingStatusId { get; set; }
[ForeignKey("FindingStatusId")]
public Status FindingStatus { get; set; }
public List<FindingFiscalYear> RepeatingYears { get; set; }
public List<Recommendation> Recommendations { get; set; }
[ForeignKey("FindingAuditId")]
public Audit Audit { get; set; }
#endregion
}
[Table("audit")]
public class Audit
{
private string _auditAcnCd;
private string _title;
private string _summary;
[Key]
[Column("audit_id")]
public int AuditID { get; set; }
[Required(ErrorMessage = "ACN Required")]
[Display(Name="ACN:")]
[Column("audit_acn_cd")]
public string AuditAcnCd
{
get
{
return _auditAcnCd;
}
set
{
_auditAcnCd = value?.Trim();
}
}
[Required(ErrorMessage = "Title Required")]
[Display(Name = "Title:")]
[Column("audit_report_title_tx")]
public string Title
{
get
{
return _title;
}
set
{
_title = value?.Trim();
}
}
[Required(ErrorMessage = "Issuer Required")]
[Display(Name="Issuer:")]
[Column("audit_issuer_tx")]
public string Issuer { get; set; }
[Display(Name = "Sensitive Designation")]
[Column("audit_sensitive_cd")]
public string AuditSensitiveCode { get; set; }
[Display(Name = "Alternative Product")]
[Column("audit_alternate_product_cd")]
public string AuditAlternateProductCode { get; set; }
[RegularExpression("([1-9][0-9]*)", ErrorMessage = "Priority must be a number.")]
[Display(Name = "Priority:")]
[Column("audit_priority_cd")]
public short? Priority { get; set; }
[StringLength(maximumLength: 1000,ErrorMessage = "Max Length: 1000")]
[Display(Name = "Summary:")]
[Column("audit_summary_tx")]
public string Summary
{
get
{
return _summary;
}
set
{
_summary = value?.Trim();
}
}
[Column("audit_gao_contact_tx")]
[Display(Name = "GAO Contact:")]
[StringLength(maximumLength: 200, ErrorMessage = "Max Length: 200")]
public string AuditGaoContactText { get; set; }
[Column("audit_gao_job_cd")]
[Display(Name = "GAO Job Code:")]
[StringLength(maximumLength: 200, ErrorMessage = "Max Length: 30")]
public string AuditGaoJobCode { get; set; }
[Display(Name = "Lead Office:")]
[Column("audit_lead_office_id")]
public short? LeadOfficeID { get; set; }
#region Navigation Properties
[Required(ErrorMessage = "Audit Type Required.")]
[Display(Name = "Audit Type:")]
[Column("audit_audit_type_id")]
public short AuditTypeID { get; set; }
[Display(Name = "Audit Type:")]
public AuditType AuditType { get; set; }
[Column("audit_status_id")]
public int StatusID { get; set; }
public Status Status { get; set; }
[Required(ErrorMessage = "Office is Required.")]
[Display(Name = "Offices:")]
[Column("audit_office_id")]
public short? OfficeID { get; set; }
public Office Office { get; set; }
[ForeignKey("AuditID")]
public External External { get; set; }
public IEnumerable<AuditLog> AuditLogs { get; set; }
public IEnumerable<Finding> Findings { get; set; }
public IEnumerable<Assignment> Assignments { get; set; }
[Column("audit_update_staff_id")]
public short UpdateStaffID { get; set; }
[Column("audit_oig_manager_id")]
[Display(Name = "OIG Audit Manager:")]
public short? OigAuditManagerId { get; set; }
[Display(Name = "OIG Audit Manager:")]
[ForeignKey("OigAuditManagerId")]
public Staff OigAuditManager { get; set; }
[Column("audit_fsa_office_id")]
[Display(Name = "FSA Audit Lead:")]
public int? FsaLeadOfficeId { get; set; }
[Display(Name = "FSA Audit Lead:")]
[ForeignKey("FsaLeadOfficeId")]
public FSAOffice FsaLeadOffice { get; set; }
[ForeignKey("LeadOfficeID")]
public Office LeadOffice { get; set; }
#endregion
}
答案 0 :(得分：1)
好吧，就像我希望今天早上将其重新打开，重新开始，并且可以正常工作。
伊万，我相信你是对的。您无需调用实体框架的更新。如果我忘记了Update语句，我之前已经注意到这一点。
如果不需要，您会无缘无故地打电话给仓库中的更新。
我正在数据库中手动重置场景以反复测试。某些东西一定已经腐败了。
但是上面的所有代码都可以帮助任何人。