EntityAssociationAttribute Step2

src/OpenRiaServices.Client/Framework/EntityAssociationAttribute.cs

@@ -1,20 +1,20 @@
 using System;
 using System.Collections.Generic;
 
+#nullable enable
 #pragma warning disable CS3015 // Type has no accessible constructors which use only CLS-compliant types
 
-namespace OpenRiaServices
+namespace System.ComponentModel.DataAnnotations
 {
     /// <summary>
-    /// Used to mark an Entity member as an association
+    /// Used to mark an Entity member as an association.
     /// </summary>
     [AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
-
     public sealed class EntityAssociationAttribute : Attribute
 #pragma warning restore CS3015 // Type has no accessible constructors which use only CLS-compliant types
     {
         /// <summary>
-        /// Full form of constructor
+        /// Create an instance that defines an association between two entities, using any number of key members.
         /// </summary>
         /// <param name="name">The name of the association. For bi-directional associations,
         /// the name must be the same on both sides of the association</param>
@@ -26,14 +26,35 @@ public EntityAssociationAttribute(string name, string[] thisKey, string[] otherK
             ThisKeyMembers = thisKey ?? throw new ArgumentNullException(nameof(thisKey));
             OtherKeyMembers = otherKey ?? throw new ArgumentNullException(nameof(otherKey));
 
-            if (name .Length == 0)
+            if (name.Length == 0)
                 throw new ArgumentException("Name cannot be empty", nameof(name));
             if (thisKey.Length == 0)
                 throw new ArgumentException("ThisKey cannot be empty", nameof(thisKey));
             if (otherKey.Length == 0)
                 throw new ArgumentException("OtherKey cannot be empty", nameof(otherKey));
         }
 
+        /// <summary>
+        /// Create an instance that defines an association using a single key member.
+        /// </summary>
+        /// <param name="name">The name of the association. For bi-directional associations,
+        /// the name must be the same on both sides of the association</param>
+        /// <param name="thisKey">A single property name of the key value on this side of the association</param>
+        /// <param name="otherKey">A single property name of the key value on the other side of the association</param>
+        public EntityAssociationAttribute(string name, string thisKey, string otherKey)
+        {
+            if (string.IsNullOrEmpty(name))
+                throw new ArgumentException("Name cannot be empty", nameof(name));
+            if (string.IsNullOrEmpty(thisKey))
+                throw new ArgumentException("ThisKey cannot be empty", nameof(thisKey));
+            if (string.IsNullOrEmpty(otherKey))
+                throw new ArgumentException("OtherKey cannot be empty", nameof(otherKey));
+
+            Name = name;
+            ThisKeyMembers = [thisKey];
+            OtherKeyMembers = [otherKey];
+        }
+
         /// <summary>
         /// Gets the name of the association. For bi-directional associations, the name must
         /// be the same on both sides of the association
@@ -49,12 +70,12 @@ public EntityAssociationAttribute(string name, string[] thisKey, string[] otherK
         /// <summary>
         /// Gets the collection of individual key members specified in the ThisKey string.
         /// </summary>
-        public IReadOnlyCollection<string> ThisKeyMembers { get; }
+        public IReadOnlyList<string> ThisKeyMembers { get; }
 
         /// <summary>
         /// Gets the collection of individual key members specified in the OtherKey string.
         /// </summary>
-        public IReadOnlyCollection<string> OtherKeyMembers { get; }
+        public IReadOnlyList<string> OtherKeyMembers { get; }
 
         /// <summary>
         /// Gets or sets the key value on this side of the association

src/OpenRiaServices.Client/Test/Client.Test/OpenRiaServices.Client.Test.csproj

@@ -1,17 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <NoWarn>108</NoWarn>
     <TargetFrameworks>net472;net6.0-windows;net8.0-windows</TargetFrameworks>
     <Version>1.0.0.0</Version>
     <UseWPF>true</UseWPF>
     <DefineConstants>$(DefineConstants);HAS_COLLECTIONVIEW</DefineConstants>
   </PropertyGroup>
-
-  <PropertyGroup Condition=" '$(TargetFramework)' != 'net472'">
-    <!-- Disable obsolete warning (primarily AssociationAttribute) -->
-    <NoWarn>$(NoWarn);CS0618</NoWarn>
-  </PropertyGroup>
-
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.3.1" />

src/OpenRiaServices.Client/Test/Client.Vb.Test/OpenRiaServices.Client.Vb.Test.csproj

@@ -3,7 +3,6 @@
   <PropertyGroup>
     <TargetFrameworks>net472</TargetFrameworks>
     <DefineConstants>TRACE;DEBUG;VBTests</DefineConstants>
-    <NoWarn>108</NoWarn>
     <RootNamespace>OpenRiaServices.Client.Test</RootNamespace>
   </PropertyGroup>
 

src/OpenRiaServices.EntityFramework/Test/CodeFirstModel/EFCodeFirstModels.csproj

@@ -1,6 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <NoWarn>618</NoWarn>
     <RootNamespace>CodeFirstModels</RootNamespace>
     <AssemblyName>CodeFirstModels</AssemblyName>
     <TargetFrameworks>net472;net6.0</TargetFrameworks>

src/OpenRiaServices.Tools/Framework/MetadataPipeline/EntityAssociationAttributeBuilder.cs

@@ -16,36 +16,48 @@ internal class EntityAssociationAttributeBuilder : ICustomAttributeBuilder
         /// </summary>
         public AttributeDeclaration GetAttributeDeclaration(Attribute attribute)
         {
-            AttributeDeclaration attributeDeclaration = new AttributeDeclaration(typeof(EntityAssociationAttribute));
+            string name;
+            string[] thisKey, otherKey;
+            bool isForeignKey;
 
             if (attribute is EntityAssociationAttribute entityAssociation)
             {
-                attributeDeclaration.ConstructorArguments.Add(entityAssociation.Name);
-                attributeDeclaration.ConstructorArguments.Add((string[])entityAssociation.ThisKeyMembers);
-                attributeDeclaration.ConstructorArguments.Add((string[])entityAssociation.OtherKeyMembers);
-
-                if (entityAssociation.IsForeignKey)
-                {
-                    attributeDeclaration.NamedParameters.Add(nameof(EntityAssociationAttribute.IsForeignKey), true);
-                }
+                name = entityAssociation.Name;
+                thisKey = (string[])entityAssociation.ThisKeyMembers;
+                otherKey = (string[])entityAssociation.OtherKeyMembers;
+                isForeignKey = entityAssociation.IsForeignKey;
             }
             else if (attribute is AssociationAttribute associationAttribute)
             {
-                // [EntityAssociation( {true|false} )]
-                attributeDeclaration.ConstructorArguments.Add(associationAttribute.Name);
-                attributeDeclaration.ConstructorArguments.Add(associationAttribute.ThisKeyMembers.ToArray());
-                attributeDeclaration.ConstructorArguments.Add(associationAttribute.OtherKeyMembers.ToArray());
-
-                if (associationAttribute.IsForeignKey)
-                {
-                    attributeDeclaration.NamedParameters.Add(nameof(EntityAssociationAttribute.IsForeignKey), true);
-                }
+                name = associationAttribute.Name;
+                thisKey = associationAttribute.ThisKeyMembers.ToArray();
+                otherKey = associationAttribute.OtherKeyMembers.ToArray();
+                isForeignKey = associationAttribute.IsForeignKey;
             }
             else
             {
                 return null;
             }
 
+            // Generate the attribute declaration
+            // If there is only a single key member, we use string based constructor
+            AttributeDeclaration attributeDeclaration = new AttributeDeclaration(typeof(EntityAssociationAttribute));
+            attributeDeclaration.ConstructorArguments.Add(name);
+            if (thisKey.Length == 1 && otherKey.Length == 1)
+            {
+                attributeDeclaration.ConstructorArguments.Add(thisKey[0]);
+                attributeDeclaration.ConstructorArguments.Add(otherKey[0]);
+            }
+            else
+            {
+                attributeDeclaration.ConstructorArguments.Add(thisKey);
+                attributeDeclaration.ConstructorArguments.Add(otherKey);
+            }
+
+            if (isForeignKey)
+            {
+                attributeDeclaration.NamedParameters.Add(nameof(EntityAssociationAttribute.IsForeignKey), true);
+            }
             return attributeDeclaration;
         }
     }

src/OpenRiaServices.Tools/Test/CodeGenExternalAttributeTests.cs

@@ -54,7 +54,7 @@ public void CodeGen_External_Entity_EFtoPOCO()
             TestHelper.AssertGeneratedCodeContains(
                 generatedCode,
                 "private EntityRef<global::DataTests.Scenarios.EF.Northwind.PersonalDetails> _personalDetails_MarkedAsExternal;",
-                "[EntityAssociation(\"Employee_PersonalDetails\", new string[] { \"EmployeeID\"}, new string[] { \"UniqueID\"}, IsForeignKey=true)] [ExternalReference()]",
+                "[EntityAssociation(\"Employee_PersonalDetails\", \"EmployeeID\", \"UniqueID\", IsForeignKey=true)] [ExternalReference()]",
                 "public global::DataTests.Scenarios.EF.Northwind.PersonalDetails PersonalDetails_MarkedAsExternal",
                 "private bool FilterPersonalDetails_MarkedAsExternal(global::DataTests.Scenarios.EF.Northwind.PersonalDetails entity)");
         }

src/Test/Desktop/OpenRiaServices.Common.DomainServices.Test/Baselines/Default/Cities/Cities.g.cs

@@ -1750,9 +1750,7 @@ public string Name
         /// <summary>
         /// Gets or sets the associated <see cref="State"/> entity.
         /// </summary>
-        [EntityAssociation("State_County", new string[] {
-                "StateName"}, new string[] {
-                "Name"}, IsForeignKey=true)]
+        [EntityAssociation("State_County", "StateName", "Name", IsForeignKey=true)]
         public State State
         {
             get
@@ -1930,9 +1928,7 @@ public State()
         /// </summary>
         [CustomValidation(typeof(CountiesValidator), "AreCountiesValid")]
         [Editable(false)]
-        [EntityAssociation("State_County", new string[] {
-                "Name"}, new string[] {
-                "StateName"})]
+        [EntityAssociation("State_County", "Name", "StateName")]
         [ReadOnly(true)]
         public EntityCollection<County> Counties
         {

src/Test/Desktop/OpenRiaServices.Common.DomainServices.Test/Baselines/Default/Cities/Cities.g.vb

@@ -1628,7 +1628,7 @@ Namespace Cities
         ''' <summary>
         ''' Gets or sets the associated <see cref="State"/> entity.
         ''' </summary>
-        <EntityAssociation("State_County", New String() {"StateName"}, New String() {"Name"}, IsForeignKey:=true)>  _
+        <EntityAssociation("State_County", "StateName", "Name", IsForeignKey:=true)>  _
         Public Property State() As State
             Get
                 If (Me._state Is Nothing) Then
@@ -1793,7 +1793,7 @@ Namespace Cities
         ''' </summary>
         <CustomValidation(GetType(CountiesValidator), "AreCountiesValid"),  _
          Editable(false),  _
-         EntityAssociation("State_County", New String() {"Name"}, New String() {"StateName"}),  _
+         EntityAssociation("State_County", "Name", "StateName"),  _
          [ReadOnly](true)>  _
         Public ReadOnly Property Counties() As EntityCollection(Of County)
             Get

src/Test/Desktop/OpenRiaServices.Common.DomainServices.Test/Baselines/Default/EF/Catalog_EF.g.cs

@@ -295,9 +295,7 @@ public string LoginID
         /// <summary>
         /// Gets or sets the associated <see cref="Employee"/> entity.
         /// </summary>
-        [EntityAssociation("Employee_Employee", new string[] {
-                "ManagerID"}, new string[] {
-                "EmployeeID"}, IsForeignKey=true)]
+        [EntityAssociation("Employee_Employee", "ManagerID", "EmployeeID", IsForeignKey=true)]
         public Employee Manager
         {
             get
@@ -441,9 +439,7 @@ public string NationalIDNumber
         /// <summary>
         /// Gets the collection of associated <see cref="PurchaseOrder"/> entity instances.
         /// </summary>
-        [EntityAssociation("Employee_PurchaseOrder", new string[] {
-                "EmployeeID"}, new string[] {
-                "EmployeeID"})]
+        [EntityAssociation("Employee_PurchaseOrder", "EmployeeID", "EmployeeID")]
         public EntityCollection<PurchaseOrder> PurchaseOrders
         {
             get
@@ -459,9 +455,7 @@ public EntityCollection<PurchaseOrder> PurchaseOrders
         /// <summary>
         /// Gets the collection of associated <see cref="Employee"/> entity instances.
         /// </summary>
-        [EntityAssociation("Employee_Employee", new string[] {
-                "EmployeeID"}, new string[] {
-                "ManagerID"})]
+        [EntityAssociation("Employee_Employee", "EmployeeID", "ManagerID")]
         public EntityCollection<Employee> Reports
         {
             get
@@ -1265,9 +1259,7 @@ public Nullable<int> ProductSubcategoryID
         /// <summary>
         /// Gets the collection of associated <see cref="PurchaseOrderDetail"/> entity instances.
         /// </summary>
-        [EntityAssociation("Product_PurchaseOrderDetail", new string[] {
-                "ProductID"}, new string[] {
-                "ProductID"})]
+        [EntityAssociation("Product_PurchaseOrderDetail", "ProductID", "ProductID")]
         public EntityCollection<PurchaseOrderDetail> PurchaseOrderDetails
         {
             get
@@ -1637,9 +1629,7 @@ public PurchaseOrder()
         /// <summary>
         /// Gets or sets the associated <see cref="Employee"/> entity.
         /// </summary>
-        [EntityAssociation("Employee_PurchaseOrder", new string[] {
-                "EmployeeID"}, new string[] {
-                "EmployeeID"}, IsForeignKey=true)]
+        [EntityAssociation("Employee_PurchaseOrder", "EmployeeID", "EmployeeID", IsForeignKey=true)]
         public Employee Employee
         {
             get
@@ -1779,9 +1769,7 @@ public DateTime OrderDate
         /// <summary>
         /// Gets the collection of associated <see cref="PurchaseOrderDetail"/> entity instances.
         /// </summary>
-        [EntityAssociation("PurchaseOrder_PurchaseOrderDetail", new string[] {
-                "PurchaseOrderID"}, new string[] {
-                "PurchaseOrderID"})]
+        [EntityAssociation("PurchaseOrder_PurchaseOrderDetail", "PurchaseOrderID", "PurchaseOrderID")]
         public EntityCollection<PurchaseOrderDetail> PurchaseOrderDetails
         {
             get
@@ -2217,9 +2205,7 @@ public short OrderQty
         /// <summary>
         /// Gets or sets the associated <see cref="Product"/> entity.
         /// </summary>
-        [EntityAssociation("Product_PurchaseOrderDetail", new string[] {
-                "ProductID"}, new string[] {
-                "ProductID"}, IsForeignKey=true)]
+        [EntityAssociation("Product_PurchaseOrderDetail", "ProductID", "ProductID", IsForeignKey=true)]
         public Product Product
         {
             get
@@ -2287,9 +2273,7 @@ public int ProductID
         /// <summary>
         /// Gets or sets the associated <see cref="PurchaseOrder"/> entity.
         /// </summary>
-        [EntityAssociation("PurchaseOrder_PurchaseOrderDetail", new string[] {
-                "PurchaseOrderID"}, new string[] {
-                "PurchaseOrderID"}, IsForeignKey=true)]
+        [EntityAssociation("PurchaseOrder_PurchaseOrderDetail", "PurchaseOrderID", "PurchaseOrderID", IsForeignKey=true)]
         public PurchaseOrder PurchaseOrder
         {
             get

src/Test/Desktop/OpenRiaServices.Common.DomainServices.Test/Baselines/Default/EF/Catalog_EF.g.vb

@@ -311,7 +311,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets or sets the associated <see cref="Employee"/> entity.
         ''' </summary>
-        <EntityAssociation("Employee_Employee", New String() {"ManagerID"}, New String() {"EmployeeID"}, IsForeignKey:=true)>  _
+        <EntityAssociation("Employee_Employee", "ManagerID", "EmployeeID", IsForeignKey:=true)>  _
         Public Property Manager() As Employee
             Get
                 If (Me._manager Is Nothing) Then
@@ -430,7 +430,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets the collection of associated <see cref="PurchaseOrder"/> entity instances.
         ''' </summary>
-        <EntityAssociation("Employee_PurchaseOrder", New String() {"EmployeeID"}, New String() {"EmployeeID"})>  _
+        <EntityAssociation("Employee_PurchaseOrder", "EmployeeID", "EmployeeID")>  _
         Public ReadOnly Property PurchaseOrders() As EntityCollection(Of PurchaseOrder)
             Get
                 If (Me._purchaseOrders Is Nothing) Then
@@ -443,7 +443,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets the collection of associated <see cref="Employee"/> entity instances.
         ''' </summary>
-        <EntityAssociation("Employee_Employee", New String() {"EmployeeID"}, New String() {"ManagerID"})>  _
+        <EntityAssociation("Employee_Employee", "EmployeeID", "ManagerID")>  _
         Public ReadOnly Property Reports() As EntityCollection(Of Employee)
             Get
                 If (Me._reports Is Nothing) Then
@@ -1213,7 +1213,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets the collection of associated <see cref="PurchaseOrderDetail"/> entity instances.
         ''' </summary>
-        <EntityAssociation("Product_PurchaseOrderDetail", New String() {"ProductID"}, New String() {"ProductID"})>  _
+        <EntityAssociation("Product_PurchaseOrderDetail", "ProductID", "ProductID")>  _
         Public ReadOnly Property PurchaseOrderDetails() As EntityCollection(Of PurchaseOrderDetail)
             Get
                 If (Me._purchaseOrderDetails Is Nothing) Then
@@ -1567,7 +1567,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets or sets the associated <see cref="Employee"/> entity.
         ''' </summary>
-        <EntityAssociation("Employee_PurchaseOrder", New String() {"EmployeeID"}, New String() {"EmployeeID"}, IsForeignKey:=true)>  _
+        <EntityAssociation("Employee_PurchaseOrder", "EmployeeID", "EmployeeID", IsForeignKey:=true)>  _
         Public Property Employee() As Employee
             Get
                 If (Me._employee Is Nothing) Then
@@ -1685,7 +1685,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets the collection of associated <see cref="PurchaseOrderDetail"/> entity instances.
         ''' </summary>
-        <EntityAssociation("PurchaseOrder_PurchaseOrderDetail", New String() {"PurchaseOrderID"}, New String() {"PurchaseOrderID"})>  _
+        <EntityAssociation("PurchaseOrder_PurchaseOrderDetail", "PurchaseOrderID", "PurchaseOrderID")>  _
         Public ReadOnly Property PurchaseOrderDetails() As EntityCollection(Of PurchaseOrderDetail)
             Get
                 If (Me._purchaseOrderDetails Is Nothing) Then
@@ -2096,7 +2096,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets or sets the associated <see cref="Product"/> entity.
         ''' </summary>
-        <EntityAssociation("Product_PurchaseOrderDetail", New String() {"ProductID"}, New String() {"ProductID"}, IsForeignKey:=true)>  _
+        <EntityAssociation("Product_PurchaseOrderDetail", "ProductID", "ProductID", IsForeignKey:=true)>  _
         Public Property Product() As Product
             Get
                 If (Me._product Is Nothing) Then
@@ -2151,7 +2151,7 @@ Namespace AdventureWorksModel
         ''' <summary>
         ''' Gets or sets the associated <see cref="PurchaseOrder"/> entity.
         ''' </summary>
-        <EntityAssociation("PurchaseOrder_PurchaseOrderDetail", New String() {"PurchaseOrderID"}, New String() {"PurchaseOrderID"}, IsForeignKey:=true)>  _
+        <EntityAssociation("PurchaseOrder_PurchaseOrderDetail", "PurchaseOrderID", "PurchaseOrderID", IsForeignKey:=true)>  _
         Public Property PurchaseOrder() As PurchaseOrder
             Get
                 If (Me._purchaseOrder Is Nothing) Then