Creating Column Name attribute to bind property by a specific name.

Slapper.AutoMapper.Tests/MappingWithPropertyAttributesTests.cs

@@ -0,0 +1,39 @@
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Dynamic;
+using System.Linq;
+using System.Text;
+
+namespace Slapper.Tests
+{
+    [TestFixture]
+    public class MappingWithPropertyAttributesTests : TestBase
+    {
+        public class Person
+        {
+            [Slapper.AutoMapper.ColumnName("PersonId")]
+            public int Id { get; set; }
+            public string FirstName { get; set; }
+            public string LastName { get; set; }
+        }
+
+        [Test]
+        public void Can_Add_An_ColumnId()
+        {
+            // Arrange
+            dynamic dynamicPerson = new ExpandoObject();
+            dynamicPerson.PersonId = 1;
+            dynamicPerson.FirstName = "Bob";
+            dynamicPerson.LastName = "Smith";
+
+            // Act
+            Slapper.AutoMapper.Configuration.AddIdentifier(typeof(Person), "PersonId");
+            var person = Slapper.AutoMapper.MapDynamic<Person>(dynamicPerson) as Person;
+
+
+            // Assert
+            Assert.NotNull(person);
+        }
+    }
+}

Slapper.AutoMapper.Tests/Slapper.Tests.csproj

@@ -52,6 +52,7 @@
     <Compile Include="MappingToGuidTests.cs" />
     <Compile Include="MappingToNullableTypesTests.cs" />
     <Compile Include="MappingToEnumTests.cs" />
+    <Compile Include="MappingWithPropertyAttributesTests.cs" />
     <Compile Include="MapUniqueChildsIdTest.cs" />
     <Compile Include="MatchingChildNameTests.cs" />
     <Compile Include="NoIdentifierTests.cs" />

Slapper.AutoMapper.sln

@@ -1,6 +1,8 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 2012
+# Visual Studio 15
+VisualStudioVersion = 15.0.28010.2016
+MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Slapper", "Slapper.AutoMapper\Slapper.csproj", "{A3A6ABBF-8C42-4945-BB8B-804123E45B2D}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Slapper.Tests", "Slapper.AutoMapper.Tests\Slapper.Tests.csproj", "{DB57364B-6EE2-46C0-837E-B43F53CEEFA5}"
@@ -23,4 +25,7 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {4714146F-EB06-4313-BBE1-730EC2F49A71}
+	EndGlobalSection
 EndGlobal

Slapper.AutoMapper/Slapper.AutoMapper.InternalHelpers.cs

@@ -243,7 +243,16 @@ public static Dictionary<string, object> CreateFieldAndPropertyInfoDictionary(Ty
 
                 foreach (var propertyInfo in properties)
                 {
-                    dictionary.Add(propertyInfo.Name, propertyInfo);
+                    if(propertyInfo.GetCustomAttributes(typeof(ColumnName), false).Length > 0)
+                    {
+                        var propertyName = ((ColumnName)propertyInfo.GetCustomAttributes(typeof(ColumnName), false).First()).Name;
+                        dictionary.Add(propertyName, propertyInfo);
+                    }
+                    else
+                    {
+                        dictionary.Add(propertyInfo.Name, propertyInfo);
+                    }
+
                 }
 
                 var fields = type.GetFields();

Slapper.AutoMapper/Slapper.AutoMapper.cs

@@ -46,11 +46,24 @@ public static partial class AutoMapper
         /// <summary>
         /// Attribute for specifying that a field or property is an identifier.
         /// </summary>
-        [AttributeUsage( AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = false )]
+        [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
         public class Id : Attribute
         {
         }
 
+        /// <summary>
+        /// Attribute for specifying that a field or property is an identifier.
+        /// </summary>
+        [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
+        public class ColumnName : Attribute
+        {
+            public string Name { get; private set; }
+            public ColumnName(string name)
+            {
+                Name = name;
+            }
+        }
+
         #endregion Attributes
 
         #region Mapping
@@ -66,7 +79,7 @@ public class Id : Attribute
         /// <param name="keepCache">If false, clears instance cache after mapping is completed. Defaults to true, meaning instances are kept between calls.</param>
         /// <returns>The type <typeparamref name="T"/></returns>
         /// <exception cref="ArgumentException">Exception that is thrown when the <paramref name="dynamicObject"/> cannot be converted to an IDictionary of type string and object.</exception>
-        public static T MapDynamic<T>( object dynamicObject, bool keepCache = true)
+        public static T MapDynamic<T>(object dynamicObject, bool keepCache = true)
         {
             return (T)MapDynamic(typeof(T), dynamicObject, keepCache);
         }
@@ -110,7 +123,7 @@ public static object MapDynamic(Type type, object dynamicObject, bool keepCache
         /// <param name="keepCache">If false, clears instance cache after mapping is completed. Defaults to true, meaning instances are kept between calls.</param>
         /// <returns>List of type <typeparamref name="T"/></returns>
         /// <exception cref="ArgumentException">Exception that is thrown when the <paramref name="dynamicListOfProperties"/> cannot be converted to an IDictionary of type string and object.</exception>
-        public static IEnumerable<T> MapDynamic<T>( IEnumerable<object> dynamicListOfProperties, bool keepCache = true)
+        public static IEnumerable<T> MapDynamic<T>(IEnumerable<object> dynamicListOfProperties, bool keepCache = true)
         {
             return MapDynamic(typeof(T), dynamicListOfProperties, keepCache).Cast<T>();
         }
@@ -152,7 +165,7 @@ public static IEnumerable<object> MapDynamic(Type type, IEnumerable<object> dyna
         /// <param name="listOfProperties">List of property names and values</param>
         /// <param name="keepCache">If false, clears instance cache after mapping is completed. Defaults to true, meaning instances are kept between calls.</param>
         /// <returns>The type <typeparamref name="T"/></returns>
-        public static T Map<T>( IDictionary<string, object> listOfProperties, bool keepCache = true)
+        public static T Map<T>(IDictionary<string, object> listOfProperties, bool keepCache = true)
         {
             return (T)Map(typeof(T), listOfProperties, keepCache);
         }
@@ -184,7 +197,7 @@ public static object Map(Type type, IDictionary<string, object> listOfProperties
         /// <param name="listOfProperties">List of property names and values</param>
         /// <param name="keepCache">If false, clears instance cache after mapping is completed. Defaults to true, meaning instances are kept between calls.</param>
         /// <returns>List of type <typeparamref name="T"/></returns>
-        public static IEnumerable<T> Map<T>( IEnumerable<IDictionary<string, object>> listOfProperties, bool keepCache = true)
+        public static IEnumerable<T> Map<T>(IEnumerable<IDictionary<string, object>> listOfProperties, bool keepCache = true)
         {
             return Map(typeof(T), listOfProperties, keepCache).Cast<T>();
         }