我一直在拉我的頭髮,試圖找出我認爲會是一個相對簡單的關係映射(一對多)。EF 6關係:在模型生成期間檢測到一個或多個驗證錯誤
咱們過去我有什麼在車型:
ContentExternalLink
public class ContentExternalLink
{
public ContentExternalLink()
{
ContentTagAssignments = new List<ContentTagAssignment>();
}
[Key]
public string LinkId { get; set; }
public string LinkTypeId { get; set; }
public string LinkTitle { get; set; }
public string LinkUrl { get; set; }
public string LinkSource { get; set; }
public string LinkPhoneNumber { get; set; }
public DateTime LinkDate { get; set; }
public DateTime LinkCreatedDate { get; set; }
public DateTime LinkModifiedDate { get; set; }
[ScriptIgnore]
public virtual ICollection<ContentTagAssignment> ContentTagAssignments { get; set; }
}
ContentTagAssignmnent
public class ContentTagAssignment
{
public ContentTagAssignment()
{
this.ContentExternalLink = new ContentExternalLink();
}
[Key]
public string TagId { get; set; }
[Key]
public string ArticleId { get; set; }
public bool IsPrimary { get; set; }
public DateTime CreatedDate { get; set; }
[ScriptIgnore]
public virtual ContentExternalLink ContentExternalLink { get; set; }
}
現在到映射:
ContentExternalLinkMap
public class ContentExternalLinkMap : EntityTypeConfiguration<ContentExternalLink>
{
public ContentExternalLinkMap()
{
this.ToTable("content_external_link", "dbo");
this.HasKey(c => c.LinkId);
this.Property(c => c.LinkId).HasColumnName("link_id");
this.Property(c => c.LinkTypeId).HasColumnName("link_type_id");
this.Property(c => c.LinkTitle).HasColumnName("link_title");
this.Property(c => c.LinkUrl).HasColumnName("link_url");
this.Property(c => c.LinkSource).HasColumnName("link_source");
this.Property(c => c.LinkPhoneNumber).HasColumnName("link_phone_number");
this.Property(c => c.LinkDate).HasColumnName("link_date");
this.Property(c => c.LinkCreatedDate).HasColumnName("link_created_date");
this.Property(c => c.LinkModifiedDate).HasColumnName("link_modified_date");
}
}
ContentTagAssignmnetMap
public class ContentTagAssignmentMap : EntityTypeConfiguration<ContentTagAssignment>
{
public ContentTagAssignmentMap()
{
this.ToTable("content_tag_assignment", "dbo");
this.HasKey(t => new {t.TagId, t.ArticleId});
this.Property(t => t.TagId).HasColumnName("tag_id");
this.Property(t => t.ArticleId).HasColumnName("article_id");
this.Property(t => t.IsPrimary).HasColumnName("is_primary_tag");
this.Property(t => t.CreatedDate).HasColumnName("created_date");
this.HasOptional(t => t.ContentExternalLink)
.WithMany(t => t.ContentTagAssignments)
.HasForeignKey(t => new {t.TagId, t.ArticleId});
}
}
的關係肯定是怪異的一側在LINKID將匹配在ContentTagAssignment條款ArticleID。
我試過在ContentTagAssignmentMap如下:
//this.HasOptional(t => t.ContentExternalLink)
// .WithMany(t => t.ContentTagAssignments)
// .HasForeignKey(t => t.ContentExternalLink);
this.HasOptional(x => x.ContentExternalLink)
.WithMany(x=>x.ContentTagAssignments)
.Map(x => x.MapKey("LinkId").HasColumnAnnotation("LinkId","ArticleId",null));
//this.Map(m =>
// {
// m.Properties(x => x.ArticleId);
// m.ToTable("content_tag_assignment");
// })
// .Map(p =>
// {
// p.Properties(x => x.ContentExternalLink.LinkId);
// p.ToTable("ContentExternalLink");
// });
註釋的關係不起作用。一個工作(因爲它不會在初始頁面加載失敗)。但是,當我嘗試從ContentExternalLink訪問列表時,出現以下錯誤:{「列名無效'LinkId'。\ r \ n列名'LinkId'。」}
因此,我甚至更多輸了...
問題
基本上,不是每個ContentExternalLink都會有一個標籤分配給它。但是,如果對ContentExternalLink有ContentTagAssignments,我應該能夠獲得它們的列表。另外,TagId和ArticleId是字符串(guid)。
有沒有人有任何建議?
謝謝!
你已經證明這兩種型號都相同('ContentTagAssignmnent'):) –
@StephenMuecke衛生署!感謝您告訴我,我已經用真實模型更新了ContentExternalLink模型。 – ajtatum
http://stackoverflow.com/q/20757594/861716 –