Cant seem to connect oData table to a smart table - sapui5

I was trying to connect an oData table to a smart table in my web ide using the following code.
I have seen the metadata of my oData and the entity set I want to access is trainingPlan.
PLANID and COURSEID are 2 columns in the table I am accessing.
In the result screen just the empty toolbar is coming and 'no data' is written beneath it.
The table is accessible as I tried to display using normal table and the data is showing.
#App.view.xml
<core:View xmlns:core="sap.ui.core" xmlns="sap.m" xmlns:smartFilterBar="sap.ui.comp.smartfilterbar"
xmlns:smartTable="sap.ui.comp.smarttable" xmlns:html="http://www.w3.org/1999/xhtml"
xmlns:app="http://schemas.sap.com/sapui5/extension/sap.ui.core.CustomData/1" controllerName="Workspace.controller.App" height="100%">
<smartFilterBar:SmartFilterBar id="smartFilterBar" entitySet="trainingPlan" persistencyKey="SmartFilter_Explored" enableBasicSearch="true" >
<smartFilterBar:controlConfiguration>
<smartFilterBar:ControlConfiguration key="PLANID"></smartFilterBar:ControlConfiguration>
<smartFilterBar:ControlConfiguration key="COURSEID"></smartFilterBar:ControlConfiguration>
</smartFilterBar:controlConfiguration>
</smartFilterBar:SmartFilterBar>
<smartTable:SmartTable entitySet="trainingPlan" initiallyVisibleFields="PLANID" smartFilterId="smartFilterBar" tableType="ResponsiveTable" useExportToExcel="true"
useVariantManagement="false" useTablePersonalisation="true" header="Line Items" showRowCount="true" tableBindingPath="{TEST>/trainingPlan}"
persistencyKey="SmartTableAnalytical_Explored" enableAutoBinding="true" demandPopin="true" class="sapUiResponsiveContentPadding"
/>
</core:View>
#metadata.xml
<edmx:Edmx xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx"
Version="1.0">
<edmx:DataServices
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"
m:DataServiceVersion="2.0">
<Schema xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"
xmlns="http://schemas.microsoft.com/ado/2008/09/edm"
Namespace="demo.services.demo">
<<EntityType Name="trainingPlanType">
<Key>
<PropertyRef Name="PLANID"/>
<PropertyRef Name="COURSEID"/>
</Key>
<Property Name="PLANID" Type="Edm.Int32" Nullable="false"/>
<Property Name="COURSEID" Type="Edm.Int32" Nullable="false"/>
<Property Name="COURSENAME" Type="Edm.String" Nullable="false"
MaxLength="255"/>
<Property Name="STARTDATE" Type="Edm.DateTime" Nullable="false"/>
<Property Name="AVAILSEAT" Type="Edm.Int32" Nullable="false"/>
<Property Name="TOTALSEATS" Type="Edm.Int32" Nullable="false"/>
<Property Name="ROOMNO" Type="Edm.Int32" Nullable="false"/>
<Property Name="COURSEDURATION" Type="Edm.String" MaxLength="255"/>
</EntityType>
<EntityContainer Name="demo" m:IsDefaultEntityContainer="true">
<EntitySet Name="trainingPlan"
EntityType="demo.services.demo.trainingPlanType"/>
</EntityContainer>
</Schema>
</edmx:DataServices>
</edmx:Edmx>

I assume you used a model named "TEST".
If you obtain the OData service data through the manifest without a named model, change tableBindingPath to:
tableBindingPath="{/trainingPlan}"

Related

SAPUI5 - mockup server

I'm following this Mockup Server tutorial for SAPUI5. But I'm not able to retrieve the data and set it to my model. Here's what I do:
I have slightly changed the data so, so two things have to be changed:
json data - Person.json:
{ "id":1,
"first_name":"Chris",
"last_name":"Johnston", "email":"cjohnston0#dailymotion.com", "gender":"Male", "ip_address":"119.220.205.173" }
emphasized text
``
<edmx:Edmx Version="1.0"
xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx"/>
<edmx:DataServices m:DataServiceVersion="1.0"
m:MaxDataServiceVersion="3.0">
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<Schema Namespace="PersonsData" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
<EntityType Name="Person">
<Key>
<PropertyRef Name="id"/>
</Key>
<Property name="id" Type="Edm.Int16" Nullable="false" />
<Property Name="first_name" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false" Unicode="true"/>
<Property Name="last_name" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false" Unicode="true"/>
<Property Name="email" Type="Edm.String" Nullable="false"/>
<Property Name="gender" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false"/>
<Property Name="ip_address" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false" Unicode="true"/>
</EntityType>
</Schema>
<Schema Namespace="databinding.PersonsData.Model" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
<EntityContainer Name="PersonEntities" m:IsDefaultEntityContainer="true" p6:LazyLoadingEnabled="true"
xmlns:p6="http://schemas.microsoft.com/ado/2009/02/edm/annotation">
<EntitySet Name="Persons" EntityType="PersonsData.Invoice"/>
</EntityContainer>
</Schema>
</edmx:DataServices>
The SAPUI5 Web IDE says that edmx namespace does not exist.
So I went to check edmx namespace and it does not exists.
Chrome developer tools reports the same error:
Could this be the problem?
I checked and mockserver.init() is triggered.
Did Microsoft moved this namespace somewhere? Cause I was not able to find it.
Thanks
what I see is that you messed up your XML structure. As the error says your XML is invalid.
You've closed the surrounding edmx:Edmx tag at the beginning of the document
You've closed the edmx:DataServices tag too early
Furthermore the attribute name of the property id is in lowercase. Try to make an uppercased Name.
Try to use this xml:
<edmx:Edmx Version="1.0" xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx">
<edmx:DataServices m:DataServiceVersion="1.0" m:MaxDataServiceVersion="3.0"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<Schema Namespace="PersonsData" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
<EntityType Name="Person">
<Key>
<PropertyRef Name="id"/>
</Key>
<Property Name="id" Type="Edm.Int16" Nullable="false"/>
<Property Name="first_name" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false" Unicode="true"/>
<Property Name="last_name" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false" Unicode="true"/>
<Property Name="email" Type="Edm.String" Nullable="false"/>
<Property Name="gender" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false"/>
<Property Name="ip_address" Type="Edm.String" Nullable="false" MaxLength="40" FixedLength="false" Unicode="true"/>
</EntityType>
</Schema>
<Schema Namespace="databinding.PersonsData.Model" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
<EntityContainer Name="PersonEntities" m:IsDefaultEntityContainer="true" p6:LazyLoadingEnabled="true"
xmlns:p6="http://schemas.microsoft.com/ado/2009/02/edm/annotation">
<EntitySet Name="Persons" EntityType="PersonsData.Invoice"/>
</EntityContainer>
</Schema>
</edmx:DataServices>

SAPUI5 - How to bind fields of child entity in same panel as fields of parent entity in SAP Friori Sample "Approve PO" app?

In the SAP Sample "Approve Purchase Order" application, that comes with the SAP Web IDE, how do I bind fields of "Supplier" entity (child) in the same "Simple Form" UI container control as the fields of "PurchaseOrder" (parent) entity. In this sample, there are 3 separate mock data files, one each for "Purchase Order", "Purchase Order Items" and "Supplier". The relationship between Purchase Order and Supplier is 1:1 defined in the metadata.xml using association.
a) PurchaseOrder (relevant portion only)
<EntityType Name="PurchaseOrder" sap:content-version="1" sap:is-thing-type="true">
<Key>
<PropertyRef Name="POId"/>
</Key>
<Property MaxLength="10" Name="POId" Nullable="false" Type="Edm.String" sap:creatable="false" sap:filterable="false"
sap:label="Purchase Order ID" sap:updatable="false"/>
<Property MaxLength="10" Name="OrderedById" Nullable="false" Type="Edm.String" sap:creatable="false" sap:filterable="false"
<Property MaxLength="10" Name="SupplierId" Nullable="false" Type="Edm.String" sap:creatable="false" sap:filterable="false" sap:label="ID"
sap:sortable="false" sap:updatable="false"/>
b) Supplier (relevant portion only)
<EntityType Name="Supplier" sap:content-version="1" sap:is-thing-type="true">
<Key>
<PropertyRef Name="Id"/>
</Key>
<Property MaxLength="10" Name="Id" Nullable="false" Type="Edm.String" sap:creatable="false" sap:filterable="false" sap:label="ID"
sap:sortable="false" sap:updatable="false"/>
<Property MaxLength="255" Name="Email" Nullable="false" Type="Edm.String" sap:creatable="false" sap:filterable="false" sap:label="E-Mail"
sap:semantics="email" sap:sortable="false" sap:updatable="false"/>
c) Association
<Association Name="PurchaseOrderSupplier" sap:content-version="1" sap:label="Association: Supplier --> Purchase Order">
<End Multiplicity="1" Role="FromRole_PurchaseOrderSupplier" Type="EPM_REF_APPS_PO_APV_SRV.Supplier"/>
<End Multiplicity="*" Role="ToRole_PurchaseOrderSupplier" Type="EPM_REF_APPS_PO_APV_SRV.PurchaseOrder"/>
<ReferentialConstraint>
<Principal Role="FromRole_PurchaseOrderSupplier">
<PropertyRef Name="Id"/>
</Principal>
<Dependent Role="ToRole_PurchaseOrderSupplier">
<PropertyRef Name="SupplierId"/>
</Dependent>
</ReferentialConstraint>
</Association>
The portion of the view (PurchaseOrderDetails.view.xml) is shown below. All the fields, except Email is from the parent, PurchaseOrder entity.
<form:SimpleForm class="sapUiForceWidthAuto sapUiResponsiveMargin" columnsL="1" columnsM="1" emptySpanL="5" emptySpanM="5" id="poHeaderForm"
labelSpanL="3" labelSpanM="3" layout="ResponsiveGridLayout" maxContainerCols="2" minWidth="1024" title="{i18n>xtit.formTitle}">
<Label id="poIdFormLabel" text="{/#PurchaseOrder/POId/#sap:label}"/>
<Text id="poIdForm" text="{POId}"/>
<Label id="addressFormLabel" text="{/#PurchaseOrder/DeliveryAddress/#sap:label}"/>
<Text id="addressForm" text="{DeliveryAddress}"/>
<Label id="supplierEmailLabel" text="{/#Supplier/Email/#sap:label}"/>
<Text id="supplierEmail" text="{/PurchaseOrder/Id/Email}"/>
</form:SimpleForm>
I have tried many permutations to bind the field, Email, from the Supplier entity viz: a) {/Id/Email}, b) {path: 'Supplier' , parameters: {Select 'Email'}} but the result has been a blank space.
Please show the correct binding syntax for "Email".
Your metadata.xml snippet does not contain a NavigationProperty to the supplier. Therefore, your Association is not recognized... You have to fix your metadata.xml first. After this you can easily do the following:
<Text id="supplierEmail" binding="{Supplier}" text="{Email}"/>
This assumes that the navigation property of your you have named your NavigationProperty "Supplier" inside your PurchaseOrder Entity. In that case I also suggest you to use $expand=Supplier in the binding in order to get the Supplier data in the same request (the one for the PurchaseOrder), i.e. something like this:
items="{
path: '/PurchaseOrderItems',
parameters: {
'expand': 'Supplier'
}
}"
After this you could simply use this without the binding attribute because you have 'expanded':
<Text id="supplierEmail" text="{Supplier/Email}"/>

Issue in EF, mapping fragment,no default value and is not nullable

I am developing MVC 3 Applicaiton.
I have Model first approch.
I have Company Entity(Abstract).
Lead and Customer is inherited from the company entity.
When I tried to validate the model, Its gives an errror.
Error 41 Error 3023: Problem in mapping fragments starting at line
70:Column Companies.Status in table Companies must be mapped: It has
no default value and is not nullable.
Here is the mapping of tables.
And Here is the EDMX code in HTML View.
<?xml version="1.0" encoding="utf-8"?>
<edmx:Edmx Version="2.0" xmlns:edmx="http://schemas.microsoft.com/ado/2008/10/edmx">
<!-- EF Runtime content -->
<edmx:Runtime>
<!-- SSDL content -->
<edmx:StorageModels>
<Schema Namespace="Model1.Store" Alias="Self" Provider="System.Data.SqlClient" ProviderManifestToken="2008" xmlns="http://schemas.microsoft.com/ado/2009/02/edm/ssdl" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator">
<EntityContainer Name="Model1StoreContainer">
<EntitySet Name="Companies" EntityType="Model1.Store.Companies" store:Type="Tables" Schema="dbo" />
</EntityContainer>
<EntityType Name="Companies">
<Key>
<PropertyRef Name="Id" />
</Key>
<Property Name="Id" Type="int" StoreGeneratedPattern="Identity" Nullable="false" />
<Property Name="Name" Type="nvarchar(max)" Nullable="false" />
<Property Name="Status" Type="nvarchar(max)" Nullable="false" />
<Property Name="__Disc__" Type="nvarchar" MaxLength="Max" Nullable="false" />
</EntityType>
</Schema></edmx:StorageModels>
<!-- CSDL content -->
<edmx:ConceptualModels>
<Schema xmlns="http://schemas.microsoft.com/ado/2008/09/edm" xmlns:cg="http://schemas.microsoft.com/ado/2006/04/codegeneration" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" Namespace="Model1" Alias="Self" xmlns:annotation="http://schemas.microsoft.com/ado/2009/02/edm/annotation">
<EntityContainer Name="Model1Container" annotation:LazyLoadingEnabled="true">
<EntitySet Name="Companies" EntityType="Model1.Company" />
</EntityContainer>
<EntityType Name="Company" Abstract="true">
<Key>
<PropertyRef Name="Id" />
</Key>
<Property Type="Int32" Name="Id" Nullable="false" annotation:StoreGeneratedPattern="Identity" />
<Property Type="String" Name="Name" Nullable="false" />
</EntityType>
<EntityType Name="Lead" BaseType="Model1.Company" >
<Property Type="String" Name="Status" Nullable="false" />
</EntityType>
</Schema>
</edmx:ConceptualModels>
<!-- C-S mapping content -->
<edmx:Mappings>
<Mapping Space="C-S" xmlns="http://schemas.microsoft.com/ado/2008/09/mapping/cs">
<EntityContainerMapping StorageEntityContainer="Model1StoreContainer" CdmEntityContainer="Model1Container">
<EntitySetMapping Name="Companies">
<EntityTypeMapping TypeName="IsTypeOf(Model1.Company)">
<MappingFragment StoreEntitySet="Companies">
<ScalarProperty Name="Id" ColumnName="Id" />
<ScalarProperty Name="Name" ColumnName="Name" />
<Condition ColumnName="__Disc__" Value="Company" />
</MappingFragment>
</EntityTypeMapping>
<EntityTypeMapping TypeName="Model1.Lead">
<MappingFragment StoreEntitySet="Companies">
<ScalarProperty Name="Id" ColumnName="Id" />
<ScalarProperty Name="Name" ColumnName="Name" />
<ScalarProperty Name="Status" ColumnName="Status" />
<Condition ColumnName="__Disc__" Value="Lead" />
</MappingFragment>
</EntityTypeMapping>
</EntitySetMapping>
</EntityContainerMapping>
</Mapping></edmx:Mappings>
</edmx:Runtime>
<!-- EF Designer content (DO NOT EDIT MANUALLY BELOW HERE) -->
<edmx:Designer xmlns="http://schemas.microsoft.com/ado/2008/10/edmx">
<edmx:Connection>
<DesignerInfoPropertySet>
<DesignerProperty Name="MetadataArtifactProcessing" Value="EmbedInOutputAssembly" />
</DesignerInfoPropertySet>
</edmx:Connection>
<edmx:Options>
<DesignerInfoPropertySet>
<DesignerProperty Name="ValidateOnBuild" Value="true" />
<DesignerProperty Name="EnablePluralization" Value="True" />
<DesignerProperty Name="DatabaseGenerationWorkflow" Value="$(VSEFTools)\DBGen\Generate T-SQL Via T4 (TPH).xaml" />
</DesignerInfoPropertySet>
</edmx:Options>
<!-- Diagram content (shape and connector positions) -->
<edmx:Diagrams>
<Diagram Name="Model1" >
<EntityTypeShape EntityType="Model1.Company" Width="1.5" PointX="2.375" PointY="0.875" Height="1.2636116536458335" />
<EntityTypeShape EntityType="Model1.Lead" Width="1.5" PointX="3.375" PointY="2.625" Height="1.0992643229166665" />
<InheritanceConnector EntityType="Model1.Lead" >
<ConnectorPoint PointX="3.125" PointY="2.1386116536458335" />
<ConnectorPoint PointX="3.125" PointY="2.325" />
<ConnectorPoint PointX="4.125" PointY="2.325" />
<ConnectorPoint PointX="4.125" PointY="2.625" />
</InheritanceConnector>
</Diagram>
</edmx:Diagrams>
</edmx:Designer>
</edmx:Edmx>
Whats is the issue ?
Put the DefaultValue attribute on the SSDL Status property. It would look like this (I used the empty string):
<Property Name="Status" Type="nvarchar(max)" Nullable="false" DefaultValue=""/>
Since the base entity is abstract you won't be able to create entities of this type so this DefaultValue will not really be used but it should make EF stop complaining.
In your storage model, the Companies.Status column doesn't allow null values.
Since all entities that inherit from Company except the Lead entity will not have the Status property set, you need to either allow null in the Companies.Status column or set a default value to use for the other entities.

Entity framework stored procedure mapping results not unique entities

I have a problem where I've mapped a stored procedure named sp_getMyEntity, which takes in one parameter called Id and then maps the results to a custom entity called MyEntity
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:
exec [dbo].[sp_getMyEntity] #Id=1
Results:
ID - AddressId
1 - 6
1 - 3
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:
Entities context = new Entities();
var entities = from s in context.GetMyEntity(1)
select s;
return entities.ToList();
Here is the EDMX xml:
<edmx:Edmx Version="1.0" xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx">
<!-- EF Runtime content -->
<edmx:Runtime>
<!-- SSDL content -->
<edmx:StorageModels>
<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">
<EntityContainer Name="MyProjectModelStoreContainer">
<EntitySet Name="MyEntitySet" EntityType="MyProjectModel.Store.MyEntity" />
</EntityContainer>
<Function Name="sp_getMyEntity" Aggregate="false" BuiltIn="false" NiladicFunction="false" IsComposable="false" ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
<Parameter Name="Id" Type="int" Mode="In" />
</Function>
<EntityType Name="MyEntity">
<Key>
<PropertyRef Name="Id" />
</Key>
<Property Name="Id" Type="int" Nullable="false" />
<Property Name="AddressId" Type="int" Nullable="true" />
</EntityType>
</Schema>
</edmx:StorageModels>
<!-- CSDL content -->
<edmx:ConceptualModels>
<Schema Namespace="MyProjectModel" Alias="Self" xmlns="http://schemas.microsoft.com/ado/2006/04/edm">
<EntityContainer Name="MyProjectViewEntities" >
<EntitySet Name="MyEntitySet" EntityType="MyProjectModel.MyEntity" />
<FunctionImport Name="GetMyEntity" EntitySet="MyEntitySet" ReturnType="Collection(MyProjectModel.MyEntity)">
<Parameter Name="Id" Mode="In" Type="Int32" />
</FunctionImport>
</EntityContainer>
<EntityType Name="MyEntity">
<Key>
<PropertyRef Name="Id" />
</Key>
<Property Name="Id" Type="Int32" Nullable="false" />
<Property Name="AddressId" Type="Int32" Nullable="true" />
</EntityType>
</Schema>
</edmx:ConceptualModels>
<!-- C-S mapping content -->
<edmx:Mappings>
<Mapping Space="C-S" xmlns="urn:schemas-microsoft-com:windows:storage:mapping:CS">
<EntityContainerMapping StorageEntityContainer="MyProjectModelStoreContainer" CdmEntityContainer="MyProjectViewEntities" >
<FunctionImportMapping FunctionImportName="GetMyEntity" FunctionName="MyProjectModel.Store.sp_getMyEntity" />
<EntitySetMapping Name="MyEntitySet">
<EntityTypeMapping TypeName="IsTypeOf(MyProjectModel.MyEntity)">
<MappingFragment StoreEntitySet="MyEntitySet">
<ScalarProperty Name="AddressId" ColumnName="AddressId" />
<ScalarProperty Name="Id" ColumnName="Id" />
</MappingFragment>
</EntityTypeMapping>
</EntitySetMapping>
</EntityContainerMapping>
</Mapping>
</edmx:Mappings>
</edmx:Runtime>
<!-- EF Designer content (DO NOT EDIT MANUALLY BELOW HERE) -->
<edmx:Designer xmlns="http://schemas.microsoft.com/ado/2007/06/edmx">
<edmx:Connection>
<DesignerInfoPropertySet>
<DesignerProperty Name="MetadataArtifactProcessing" Value="EmbedInOutputAssembly" />
</DesignerInfoPropertySet>
</edmx:Connection>
<edmx:Options>
<DesignerInfoPropertySet>
<DesignerProperty Name="ValidateOnBuild" Value="true" />
</DesignerInfoPropertySet>
</edmx:Options>
<!-- Diagram content (shape and connector positions) -->
<edmx:Diagrams>
<Diagram Name="MyProjectModel" ZoomLevel="100" >
<EntityTypeShape EntityType="MyProjectModel.MyEntity" Width="1.5" PointX="5.25" PointY="0.5" Height="7.8375048828125" />
<EntityTypeShape EntityType="MyProjectModel.MyEntity" Width="1.5" PointX="5.5" PointY="1.375" Height="1.2636116536458335" /></Diagram></edmx:Diagrams>
</edmx:Designer>
</edmx:Edmx>
Any ideas why the MyEntity's are not unique?
Because the SP column which your SSDL identifies as the key is not a unique column. You cannot have a "key" with duplicate values.
As Craig stated above my Key property was not unique, so I ended up changing the SQL to look at follows:
SELECT
ROW_NUMBER() OVER(ORDER BY Id) AS KeyId
, Id
, AddressId
FROM
MyTable
WHERE
Id = #Id
Then the EDMX xml looks as follows, notice the new key is a bigint and Int64:
<edmx:Edmx Version="1.0" xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx">
<!-- EF Runtime content -->
<edmx:Runtime>
<!-- SSDL content -->
<edmx:StorageModels>
<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">
<EntityContainer Name="MyProjectModelStoreContainer">
<EntitySet Name="MyEntitySet" EntityType="MyProjectModel.Store.MyEntity" />
</EntityContainer>
<Function Name="sp_getMyEntity" Aggregate="false" BuiltIn="false" NiladicFunction="false" IsComposable="false" ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
<Parameter Name="Id" Type="int" Mode="In" />
</Function>
<EntityType Name="MyEntity">
<Key>
<PropertyRef Name="KeyId" />
</Key>
<Property Name="KeyId" Type="bigint" Nullable="false" />
<Property Name="Id" Type="int" Nullable="false" />
<Property Name="AddressId" Type="int" Nullable="true" />
</EntityType>
</Schema>
</edmx:StorageModels>
<!-- CSDL content -->
<edmx:ConceptualModels>
<Schema Namespace="MyProjectModel" Alias="Self" xmlns="http://schemas.microsoft.com/ado/2006/04/edm">
<EntityContainer Name="MyProjectViewEntities" >
<EntitySet Name="MyEntitySet" EntityType="MyProjectModel.MyEntity" />
<FunctionImport Name="GetMyEntity" EntitySet="MyEntitySet" ReturnType="Collection(MyProjectModel.MyEntity)">
<Parameter Name="Id" Mode="In" Type="Int32" />
</FunctionImport>
</EntityContainer>
<EntityType Name="MyEntity">
<Key>
<PropertyRef Name="KeyId" />
</Key>
<Property Name="KeyId" Type="Int64" Nullable="false" />
<Property Name="Id" Type="Int32" Nullable="false" />
<Property Name="AddressId" Type="Int32" Nullable="true" />
</EntityType>
</Schema>
</edmx:ConceptualModels>
<!-- C-S mapping content -->
<edmx:Mappings>
<Mapping Space="C-S" xmlns="urn:schemas-microsoft-com:windows:storage:mapping:CS">
<EntityContainerMapping StorageEntityContainer="MyProjectModelStoreContainer" CdmEntityContainer="MyProjectViewEntities" >
<FunctionImportMapping FunctionImportName="GetMyEntity" FunctionName="MyProjectModel.Store.sp_getMyEntity" />
<EntitySetMapping Name="MyEntitySet">
<EntityTypeMapping TypeName="IsTypeOf(MyProjectModel.MyEntity)">
<MappingFragment StoreEntitySet="MyEntitySet">
<ScalarProperty Name="AddressId" ColumnName="AddressId" />
<ScalarProperty Name="Id" ColumnName="Id" />
<ScalarProperty Name="KeyId" ColumnName="KeyId" />
</MappingFragment>
</EntityTypeMapping>
</EntitySetMapping>
</EntityContainerMapping>
</Mapping>
</edmx:Mappings>
</edmx:Runtime>
<!-- EF Designer content (DO NOT EDIT MANUALLY BELOW HERE) -->
<edmx:Designer xmlns="http://schemas.microsoft.com/ado/2007/06/edmx">
<edmx:Connection>
<DesignerInfoPropertySet>
<DesignerProperty Name="MetadataArtifactProcessing" Value="EmbedInOutputAssembly" />
</DesignerInfoPropertySet>
</edmx:Connection>
<edmx:Options>
<DesignerInfoPropertySet>
<DesignerProperty Name="ValidateOnBuild" Value="true" />
</DesignerInfoPropertySet>
</edmx:Options>
<!-- Diagram content (shape and connector positions) -->
<edmx:Diagrams>
<Diagram Name="MyProjectModel" ZoomLevel="100" >
<EntityTypeShape EntityType="MyProjectModel.MyEntity" Width="1.5" PointX="5.25" PointY="0.5" Height="7.8375048828125" />
<EntityTypeShape EntityType="MyProjectModel.MyEntity" Width="1.5" PointX="5.5" PointY="1.375" Height="1.2636116536458335" /></Diagram></edmx:Diagrams>
</edmx:Designer>
</edmx:Edmx>

Entity Framework TPH with multiple abstract inheritance

I'm trying to do a Table Per Hierarchy model in Entity Framework(VS 2008 sp1, 3.5).
Most of my models have been very simple, an abstract type with multiple sub-types that inherit from it.
However, I've been struggling with this latest challenge. I have STUDENTS that I'd like to inherit from PERSONS(abstract) that should inherity from PARTIES(abstract).
Every time I do this I get a "Error 2078: The EntityType 'Model.PERSONS' is Abstract and can be mapped only using IsTypeOf." I guess the problem is PARTIES is already defined as IsTypeOf in the entity set.
So is this even possible? I can work around it by making PERSONS abstract = false and assigning a bogus conditional mapping. But this seems like a silly workaround.
Edit the model using XML Editor: find the mapping and add IsTypeOf to the corresponding EntityTypeMapping tag.
Here is an example resembling your case:
SQL Server DDL:
CREATE TABLE [dbo].[Student] (
[Id] [int] IDENTITY(1,1) NOT NULL,
[PartyInfo] [varchar](max) NOT NULL,
[PersonInfo] [varchar](max) NOT NULL,
[StudInfo] [varchar](max) NOT NULL,
CONSTRAINT [PK_Student] PRIMARY KEY CLUSTERED ( [Id] ASC )
)
EDMX:
<?xml version="1.0" encoding="utf-8"?>
<edmx:Edmx Version="1.0"
xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx">
<!-- EF Runtime content -->
<edmx:Runtime>
<!-- SSDL content -->
<edmx:StorageModels>
<Schema Namespace="test_1Model.Store" Alias="Self"
Provider="System.Data.SqlClient" ProviderManifestToken="2005"
xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator"
xmlns="http://schemas.microsoft.com/ado/2006/04/edm/ssdl">
<EntityContainer Name="test_1ModelStoreContainer">
<EntitySet Name="Student" EntityType="test_1Model.Store.Student"
store:Type="Tables" Schema="dbo" />
</EntityContainer>
<EntityType Name="Student">
<Key>
<PropertyRef Name="Id" />
</Key>
<Property Name="Id" Type="int" Nullable="false"
StoreGeneratedPattern="Identity" />
<Property Name="PartyInfo" Type="varchar(max)" Nullable="false" />
<Property Name="PersonInfo" Type="varchar(max)" Nullable="false" />
<Property Name="StudInfo" Type="varchar(max)" Nullable="false" />
</EntityType>
</Schema>
</edmx:StorageModels>
<!-- CSDL content -->
<edmx:ConceptualModels>
<Schema Namespace="test_1Model" Alias="Self"
xmlns="http://schemas.microsoft.com/ado/2006/04/edm">
<EntityContainer Name="test_Entities">
<EntitySet Name="PartySet" EntityType="test_1Model.Party" />
</EntityContainer>
<EntityType Name="Party" Abstract="true">
<Key>
<PropertyRef Name="Id" />
</Key>
<Property Name="Id" Type="Int32" Nullable="false" />
<Property Name="PartyInfo" Type="String" Nullable="false"
MaxLength="Max" Unicode="false" FixedLength="false" />
</EntityType>
<EntityType Name="Person" BaseType="test_1Model.Party" Abstract="true" >
<Property Name="PersonInfo" Type="String" Nullable="false" />
</EntityType>
<EntityType Name="Student" BaseType="test_1Model.Person" >
<Property Name="StudInfo" Type="String" Nullable="false" />
</EntityType>
</Schema>
</edmx:ConceptualModels>
<!-- C-S mapping content -->
<edmx:Mappings>
<Mapping Space="C-S"
xmlns="urn:schemas-microsoft-com:windows:storage:mapping:CS">
<EntityContainerMapping
StorageEntityContainer="test_1ModelStoreContainer"
CdmEntityContainer="test_Entities">
<EntitySetMapping Name="PartySet">
<EntityTypeMapping TypeName="IsTypeOf(test_1Model.Party)">
<MappingFragment StoreEntitySet="Student">
<ScalarProperty Name="PartyInfo" ColumnName="PartyInfo" />
<ScalarProperty Name="Id" ColumnName="Id" />
</MappingFragment>
</EntityTypeMapping>
<EntityTypeMapping TypeName="IsTypeOf(test_1Model.Person)">
<MappingFragment StoreEntitySet="Student">
<ScalarProperty Name="Id" ColumnName="Id" />
<ScalarProperty Name="PersonInfo" ColumnName="PersonInfo" />
</MappingFragment>
</EntityTypeMapping>
<EntityTypeMapping TypeName="test_1Model.Student">
<MappingFragment StoreEntitySet="Student">
<ScalarProperty Name="PartyInfo" ColumnName="PartyInfo" />
<ScalarProperty Name="PersonInfo" ColumnName="PersonInfo" />
<ScalarProperty Name="Id" ColumnName="Id" />
<ScalarProperty Name="StudInfo" ColumnName="StudInfo" />
</MappingFragment>
</EntityTypeMapping>
</EntitySetMapping>
</EntityContainerMapping>
</Mapping>
</edmx:Mappings>
</edmx:Runtime>
<!-- EF Designer content (DO NOT EDIT MANUALLY BELOW HERE) -->
<edmx:Designer xmlns="http://schemas.microsoft.com/ado/2007/06/edmx">
<edmx:Connection>
<DesignerInfoPropertySet>
<DesignerProperty Name="MetadataArtifactProcessing"
Value="EmbedInOutputAssembly" />
</DesignerInfoPropertySet>
</edmx:Connection>
<edmx:Options>
<DesignerInfoPropertySet>
<DesignerProperty Name="ValidateOnBuild" Value="true" />
</DesignerInfoPropertySet>
</edmx:Options>
<!-- Diagram content (shape and connector positions) -->
<edmx:Diagrams>
<Diagram Name="SqlServer_Model" />
</edmx:Diagrams>
</edmx:Designer>
</edmx:Edmx>