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POEntity framework stored procedure mapping results not unique entities
 

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  1. POEntity framework stored procedure mapping results not unique entities
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    <p>I have a problem where I've mapped a stored procedure named <strong>sp_getMyEntity</strong>, which takes in one parameter called <strong>Id</strong> and then maps the results to a custom entity called <strong>MyEntity</strong></p> <p>I'm using mock data to illustrate the point. When I run the stored procedure with an id of 1, I get two distinct results back from the database:</p> <p><code>exec [dbo].[sp_getMyEntity] @Id=1</code></p> <p>Results:</p> <p>ID - AddressId</p> <p>1 - 6</p> <p>1 - 3</p> <p>When querying the ObjectContext using LINQ, I get 2 MyEntity's back but the AddressId for both of them is 6, not 6 and 3 respectively. Here is my call using LINQ:</p> <pre><code>Entities context = new Entities(); var entities = from s in context.GetMyEntity(1) select s; return entities.ToList(); </code></pre> <p>Here is the EDMX xml:</p> <pre><code>&lt;edmx:Edmx Version="1.0" xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx"&gt; &lt;!-- EF Runtime content --&gt; &lt;edmx:Runtime&gt; &lt;!-- SSDL content --&gt; &lt;edmx:StorageModels&gt; &lt;Schema Namespace="MyProjectModel.Store" Alias="Self" Provider="System.Data.SqlClient" ProviderManifestToken="2008" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2006/04/edm/ssdl"&gt; &lt;EntityContainer Name="MyProjectModelStoreContainer"&gt; &lt;EntitySet Name="MyEntitySet" EntityType="MyProjectModel.Store.MyEntity" /&gt; &lt;/EntityContainer&gt; &lt;Function Name="sp_getMyEntity" Aggregate="false" BuiltIn="false" NiladicFunction="false" IsComposable="false" ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo"&gt; &lt;Parameter Name="Id" Type="int" Mode="In" /&gt; &lt;/Function&gt; &lt;EntityType Name="MyEntity"&gt; &lt;Key&gt; &lt;PropertyRef Name="Id" /&gt; &lt;/Key&gt; &lt;Property Name="Id" Type="int" Nullable="false" /&gt; &lt;Property Name="AddressId" Type="int" Nullable="true" /&gt; &lt;/EntityType&gt; &lt;/Schema&gt; &lt;/edmx:StorageModels&gt; &lt;!-- CSDL content --&gt; &lt;edmx:ConceptualModels&gt; &lt;Schema Namespace="MyProjectModel" Alias="Self" xmlns="http://schemas.microsoft.com/ado/2006/04/edm"&gt; &lt;EntityContainer Name="MyProjectViewEntities" &gt; &lt;EntitySet Name="MyEntitySet" EntityType="MyProjectModel.MyEntity" /&gt; &lt;FunctionImport Name="GetMyEntity" EntitySet="MyEntitySet" ReturnType="Collection(MyProjectModel.MyEntity)"&gt; &lt;Parameter Name="Id" Mode="In" Type="Int32" /&gt; &lt;/FunctionImport&gt; &lt;/EntityContainer&gt; &lt;EntityType Name="MyEntity"&gt; &lt;Key&gt; &lt;PropertyRef Name="Id" /&gt; &lt;/Key&gt; &lt;Property Name="Id" Type="Int32" Nullable="false" /&gt; &lt;Property Name="AddressId" Type="Int32" Nullable="true" /&gt; &lt;/EntityType&gt; &lt;/Schema&gt; &lt;/edmx:ConceptualModels&gt; &lt;!-- C-S mapping content --&gt; &lt;edmx:Mappings&gt; &lt;Mapping Space="C-S" xmlns="urn:schemas-microsoft-com:windows:storage:mapping:CS"&gt; &lt;EntityContainerMapping StorageEntityContainer="MyProjectModelStoreContainer" CdmEntityContainer="MyProjectViewEntities" &gt; &lt;FunctionImportMapping FunctionImportName="GetMyEntity" FunctionName="MyProjectModel.Store.sp_getMyEntity" /&gt; &lt;EntitySetMapping Name="MyEntitySet"&gt; &lt;EntityTypeMapping TypeName="IsTypeOf(MyProjectModel.MyEntity)"&gt; &lt;MappingFragment StoreEntitySet="MyEntitySet"&gt; &lt;ScalarProperty Name="AddressId" ColumnName="AddressId" /&gt; &lt;ScalarProperty Name="Id" ColumnName="Id" /&gt; &lt;/MappingFragment&gt; &lt;/EntityTypeMapping&gt; &lt;/EntitySetMapping&gt; &lt;/EntityContainerMapping&gt; &lt;/Mapping&gt; &lt;/edmx:Mappings&gt; &lt;/edmx:Runtime&gt; &lt;!-- EF Designer content (DO NOT EDIT MANUALLY BELOW HERE) --&gt; &lt;edmx:Designer xmlns="http://schemas.microsoft.com/ado/2007/06/edmx"&gt; &lt;edmx:Connection&gt; &lt;DesignerInfoPropertySet&gt; &lt;DesignerProperty Name="MetadataArtifactProcessing" Value="EmbedInOutputAssembly" /&gt; &lt;/DesignerInfoPropertySet&gt; &lt;/edmx:Connection&gt; &lt;edmx:Options&gt; &lt;DesignerInfoPropertySet&gt; &lt;DesignerProperty Name="ValidateOnBuild" Value="true" /&gt; &lt;/DesignerInfoPropertySet&gt; &lt;/edmx:Options&gt; &lt;!-- Diagram content (shape and connector positions) --&gt; &lt;edmx:Diagrams&gt; &lt;Diagram Name="MyProjectModel" ZoomLevel="100" &gt; &lt;EntityTypeShape EntityType="MyProjectModel.MyEntity" Width="1.5" PointX="5.25" PointY="0.5" Height="7.8375048828125" /&gt; &lt;EntityTypeShape EntityType="MyProjectModel.MyEntity" Width="1.5" PointX="5.5" PointY="1.375" Height="1.2636116536458335" /&gt;&lt;/Diagram&gt;&lt;/edmx:Diagrams&gt; &lt;/edmx:Designer&gt; &lt;/edmx:Edmx&gt; </code></pre> <p>Any ideas why the MyEntity's are not unique?</p>
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