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POEntity Framework Code First Mapping Issue
 

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  1. POEntity Framework Code First Mapping Issue
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    <p>I am trying to create a model on an existing database.</p> <p>I currently have the following entity mappings:</p> <pre><code>public class TripDriverMap : EntityTypeConfiguration&lt;TripDriver&gt; { public TripDriverMap() { // Primary Key this.HasKey(t =&gt; t.TripDriverMapID); // Properties // Table &amp; Column Mappings this.ToTable("slx_TripDriverMap"); this.Property(t =&gt; t.TripDriverMapID).HasColumnName("TripDriverMapID"); ... this.Property(t =&gt; t.DriverID).HasColumnName("EntityID"); // Relationships ... this.HasRequired(t =&gt; t.Driver) .WithMany(t =&gt; t.TripDrivers) .HasForeignKey(d =&gt; d.DriverID); ... } } public class DriverMap : EntityTypeConfiguration&lt;Driver&gt; { public DriverMap() { // Primary Key this.HasKey(t =&gt; t.ID); ... this.Property(t =&gt; t.ID) .HasDatabaseGeneratedOption(DatabaseGeneratedOption.None); this.Property(t =&gt; t.OwnerEntityID) .HasDatabaseGeneratedOption(DatabaseGeneratedOption.None); // Table &amp; Column Mappings this.ToTable("slx_vw_Drivers"); ... this.Property(t =&gt; t.ID).HasColumnName("EntityID"); ... } } </code></pre> <p>If you look closely I have a column called <strong>EntityID</strong> which I have mapped to the property <strong>DriverID</strong>. Whenever I try to include related entities from either side I get the following error:</p> <p>Invalid column name 'EntityPerson_EntityPersonID'.</p> <p>This is caused because part of the SQL being generated is as follows:</p> <pre><code>[Extent1].[EntityPerson_EntityPersonID] AS [EntityPerson_EntityPersonID] FROM [dbo].[slx_TripDriverMap] AS [Extent1] INNER JOIN [dbo].[slx_vw_Drivers] AS [Extent2] ON [Extent1].[EntityID] = [Extent2].[EntityID] </code></pre> <p>As you can see it is looking for a column called <strong>EntityPerson_EntityPersonID</strong> which doesn't exist. <strong>It does join on the correct columns</strong></p> <p>I cannot rename the column in the TripDriverMap table as it is in use in far to many places, both in the database, the application, and reports.</p> <p>How can I get this to work? I've done all that I thought I had to do in the <strong>TripDriverMap</strong> mapping definition</p>
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    1. USJames Culshaw
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