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POone-to-one-or-zero relation with OneWay CascadeOnDelete
 

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  1. POone-to-one-or-zero relation with OneWay CascadeOnDelete
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    <p>I have an entity that includes many different documents with unkown-relations to any entities in my database.</p> <pre><code>public class Document : BaseEntity { public string Filename { get; set; } public string MIMEType { get; set; } public int? Length { get; set; } public byte[] Content { get; set; } } </code></pre> <p>and the codefirst-mapping is: </p> <pre><code> public DocumentConfiguration() { Property(x =&gt; x.Filename).HasMaxLength(300).IsRequired(); Property(x =&gt; x.MIMEType).HasMaxLength(300).IsRequired(); Property(x =&gt; x.Length).IsOptional(); Property(x =&gt; x.Content).IsOptional().HasColumnType("varbinary(max)"); ToTable("Document"); } </code></pre> <p>Now I want an optional relation to document-table in my addressentity like so:</p> <pre><code>public class Address : BaseEntity { public string Name1 { get; set; } public string Name2 { get; set; } public string Additional { get; set; } public string Street { get; set; } public string HousNr { get; set; } public string ZipCode { get; set; } public string City { get; set; } public virtual Document Image { get; set; } } </code></pre> <p>with the following mapping: </p> <pre><code> public AddressConfiguration() { Property(x =&gt; x.Name1).IsRequired().HasMaxLength(250); Property(x =&gt; x.Name2).HasMaxLength(250); Property(x =&gt; x.Additional).HasMaxLength(250); Property(x =&gt; x.Street).HasMaxLength(250); Property(x =&gt; x.HousNr).HasMaxLength(10); Property(x =&gt; x.ZipCode).HasMaxLength(10); Property(x =&gt; x.City).HasMaxLength(100); HasOptional(x =&gt; x.Image) .WithOptionalDependent() .Map(map =&gt; map.MapKey("ImageId")).WillCascadeOnDelete(); ToTable("Address"); } </code></pre> <p>But it deletes the related address when I delete an image in the document-table.</p> <p>I would like a OneWay-Deletation from address to document, but not from document to address...?</p> <p>How can i implement that?</p> <p>thank you.</p>
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    1. USAli Ramezani
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