Added Column Attribute

Dapper.sln

@@ -16,8 +16,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		version.json = version.json
 	EndProjectSection
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapper.Contrib", "Dapper.Contrib\Dapper.Contrib.csproj", "{4E409F8F-CFBB-4332-8B0A-FD5A283051FD}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Dapper.Tests.Contrib", "tests\Dapper.Tests.Contrib\Dapper.Tests.Contrib.csproj", "{DAB3C5B7-BCD1-4A5F-BB6B-50D2BB63DB4A}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{4E956F6B-6BD8-46F5-BC85-49292FF8F9AB}"
@@ -32,27 +30,29 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{568BD46C
 		tests\docker-compose.yml = tests\docker-compose.yml
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dapper.Contrib", "src\Dapper.Contrib\Dapper.Contrib.csproj", "{F36D3111-38BC-488F-BE7F-533B5DC8070A}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{4E409F8F-CFBB-4332-8B0A-FD5A283051FD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{4E409F8F-CFBB-4332-8B0A-FD5A283051FD}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{4E409F8F-CFBB-4332-8B0A-FD5A283051FD}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{4E409F8F-CFBB-4332-8B0A-FD5A283051FD}.Release|Any CPU.Build.0 = Release|Any CPU
 		{DAB3C5B7-BCD1-4A5F-BB6B-50D2BB63DB4A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{DAB3C5B7-BCD1-4A5F-BB6B-50D2BB63DB4A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DAB3C5B7-BCD1-4A5F-BB6B-50D2BB63DB4A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{DAB3C5B7-BCD1-4A5F-BB6B-50D2BB63DB4A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F36D3111-38BC-488F-BE7F-533B5DC8070A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F36D3111-38BC-488F-BE7F-533B5DC8070A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F36D3111-38BC-488F-BE7F-533B5DC8070A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F36D3111-38BC-488F-BE7F-533B5DC8070A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
-		{4E409F8F-CFBB-4332-8B0A-FD5A283051FD} = {4E956F6B-6BD8-46F5-BC85-49292FF8F9AB}
 		{DAB3C5B7-BCD1-4A5F-BB6B-50D2BB63DB4A} = {568BD46C-1C65-4D44-870C-12CD72563262}
+		{F36D3111-38BC-488F-BE7F-533B5DC8070A} = {4E956F6B-6BD8-46F5-BC85-49292FF8F9AB}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {928A4226-96F3-409A-8A83-9E7444488710}

Readme.md

@@ -166,6 +166,18 @@ Dapper.Contrib makes use of some optional attributes:
     ```
 * `[Write(true/false)]` -  this property is (not) writeable
 * `[Computed]` - this property is computed and should not be part of updates
+* `[Column("Columnname")]` - this property has a different name in the Database
+  * Property is called EmployeeId but Column in DB is called employee_id
+
+    ```csharp
+    public class Employee
+    {
+        [ExplicitKey]
+        [Column("employee_id")]
+        public Guid EmployeeId { get; set; }
+        public string Name { get; set; }
+    }
+    ```
 
 Limitations and caveats
 -------

docs/index.md

@@ -16,7 +16,7 @@ Note: to get the latest pre-release build, add ` -Pre` to the end of the command
 
 ### Unreleased
 
-(note: new PRs will not be merged until they add release note wording here)
+* Added Column Attribute for different column name to property name
 
 ### Previous Releases
 

src/Dapper.Contrib/Dapper.Contrib.csproj

@@ -8,6 +8,11 @@
     <TargetFrameworks>net461;netstandard2.0;net5.0</TargetFrameworks>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
     <NoWarn>$(NoWarn);CA1050</NoWarn>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <PackageId>Dapper.Contrib.WithColumn</PackageId>
+    <PackageVersion>1.0.3</PackageVersion>
+    <PackageProjectUrl>https://github.com/Tiefseetauchner/Dapper.Contrib</PackageProjectUrl>
+    <RepositoryUrl>https://github.com/Tiefseetauchner/Dapper.Contrib</RepositoryUrl>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Dapper" Version="2.0.78" />
@@ -19,4 +24,4 @@
   <ItemGroup Condition=" '$(TargetFramework)' == 'net461' ">
     <Reference Include="Microsoft.CSharp" />
   </ItemGroup>
-</Project>
+</Project>

src/Dapper.Contrib/SqlMapperExtensions.Async.cs

@@ -6,6 +6,7 @@
 using System.Text;
 using System.Threading.Tasks;
 using Dapper;
+using Dapper.Contrib.Extensions;
 
 namespace Dapper.Contrib.Extensions
 {
@@ -29,8 +30,31 @@ public static async Task<T> GetAsync<T>(this IDbConnection connection, dynamic i
             {
                 var key = GetSingleKey<T>(nameof(GetAsync));
                 var name = GetTableName(type);
+
+                var sb = new StringBuilder();
 
-                sql = $"SELECT * FROM {name} WHERE {key.Name} = @id";
+                var allProperties = TypePropertiesCache(type);
+
+                var adapter = GetFormatter(connection);
+
+                for (var i = 0; i < allProperties.Count; i++)
+                {
+                    var property = allProperties[i];
+
+                    if (HasColumnName(property))
+                    { 
+                        adapter.AppendColumnNameAsPropertyName(sb, GetColumnName(property), property.Name);
+                    }
+                    else
+                    {
+                        adapter.AppendColumnName(sb, GetColumnName(property));
+                    }
+
+                    if (i < allProperties.Count - 1)
+                        sb.Append(", ");
+                }
+
+                sql = $"SELECT {sb} FROM {name} WHERE {GetColumnName(key)} = @id";
                 GetQueries[type.TypeHandle] = sql;
             }
 
@@ -88,7 +112,30 @@ public static Task<IEnumerable<T>> GetAllAsync<T>(this IDbConnection connection,
                 GetSingleKey<T>(nameof(GetAll));
                 var name = GetTableName(type);
 
-                sql = "SELECT * FROM " + name;
+                var sb = new StringBuilder();
+
+                var allProperties = TypePropertiesCache(type);
+
+                var adapter = GetFormatter(connection);
+
+                for (var i = 0; i < allProperties.Count; i++)
+                {
+                    var property = allProperties[i];
+
+                    if (HasColumnName(property))
+                    { 
+                        adapter.AppendColumnNameAsPropertyName(sb, GetColumnName(property), property.Name);
+                    }
+                    else
+                    {
+                        adapter.AppendColumnName(sb, GetColumnName(property));
+                    }
+
+                    if (i < allProperties.Count - 1)
+                        sb.Append(", ");
+                }
+
+                sql = $"SELECT {sb} FROM {name}";
                 GetQueries[cacheType.TypeHandle] = sql;
             }
 
@@ -107,7 +154,7 @@ private static async Task<IEnumerable<T>> GetAllAsyncImpl<T>(IDbConnection conne
             {
                 var obj = ProxyGenerator.GetInterfaceProxy<T>();
                 foreach (var property in TypePropertiesCache(type))
-                {
+                {                
                     var val = res[property.Name];
                     if (val == null) continue;
                     if (property.PropertyType.IsGenericType && property.PropertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
@@ -172,7 +219,8 @@ public static Task<int> InsertAsync<T>(this IDbConnection connection, T entityTo
             for (var i = 0; i < allPropertiesExceptKeyAndComputed.Count; i++)
             {
                 var property = allPropertiesExceptKeyAndComputed[i];
-                sqlAdapter.AppendColumnName(sbColumnList, property.Name);
+
+                sqlAdapter.AppendColumnName(sbColumnList, GetColumnName(property));
                 if (i < allPropertiesExceptKeyAndComputed.Count - 1)
                     sbColumnList.Append(", ");
             }
@@ -181,6 +229,7 @@ public static Task<int> InsertAsync<T>(this IDbConnection connection, T entityTo
             for (var i = 0; i < allPropertiesExceptKeyAndComputed.Count; i++)
             {
                 var property = allPropertiesExceptKeyAndComputed[i];
+
                 sbParameterList.AppendFormat("@{0}", property.Name);
                 if (i < allPropertiesExceptKeyAndComputed.Count - 1)
                     sbParameterList.Append(", ");
@@ -252,15 +301,19 @@ public static async Task<bool> UpdateAsync<T>(this IDbConnection connection, T e
             for (var i = 0; i < nonIdProps.Count; i++)
             {
                 var property = nonIdProps[i];
-                adapter.AppendColumnNameEqualsValue(sb, property.Name);
+
+                adapter.AppendColumnNameEqualsValue(sb, GetColumnName(property), property.Name);
                 if (i < nonIdProps.Count - 1)
                     sb.Append(", ");
             }
             sb.Append(" where ");
             for (var i = 0; i < keyProperties.Count; i++)
             {
                 var property = keyProperties[i];
-                adapter.AppendColumnNameEqualsValue(sb, property.Name);
+
+                var columnAttribute = property.GetCustomAttribute<ColumnAttribute>();
+
+                adapter.AppendColumnNameEqualsValue(sb, GetColumnName(property), property.Name);
                 if (i < keyProperties.Count - 1)
                     sb.Append(" and ");
             }
@@ -317,7 +370,10 @@ public static async Task<bool> DeleteAsync<T>(this IDbConnection connection, T e
             for (var i = 0; i < allKeyProperties.Count; i++)
             {
                 var property = allKeyProperties[i];
-                adapter.AppendColumnNameEqualsValue(sb, property.Name);
+
+                var columnAttribute = property.GetCustomAttribute<ColumnAttribute>();
+
+                adapter.AppendColumnNameEqualsValue(sb, GetColumnName(property), property.Name);
                 if (i < allKeyProperties.Count - 1)
                     sb.Append(" AND ");
             }
@@ -493,7 +549,8 @@ public async Task<int> InsertAsync(IDbConnection connection, IDbTransaction tran
                 if (!first)
                     sb.Append(", ");
                 first = false;
-                sb.Append(property.Name);
+
+                sb.Append(GetColumnName(property));
             }
         }
 
@@ -510,6 +567,7 @@ public async Task<int> InsertAsync(IDbConnection connection, IDbTransaction tran
         }
         return id;
     }
+    private static string GetColumnName(PropertyInfo property) => property.GetCustomAttribute<ColumnAttribute>() == null ? property.Name : property.GetCustomAttribute<ColumnAttribute>().Name;
 }
 
 public partial class SQLiteAdapter