Add Self Join Alias test

Author: mythz

tests/ServiceStack.OrmLite.FirebirdTests/ServiceStack.Common.Tests/ServiceStack.Common.Tests.Models/TaskQueue.cs

@@ -4,11 +4,12 @@
 using ServiceStack.Text;
 using ServiceStack.DataAnnotations;
 
-namespace ServiceStack.Common.Tests.Models{
+namespace ServiceStack.Common.Tests.Models
+{
 
 	public class TaskQueue
 	{
-		private readonly static ILog Log;
+		private static readonly ILog Log;
 
 		public const int PriorityHigh = 2;
 
@@ -115,13 +116,15 @@ public static void AssertIsEqual(TaskQueue actual, TaskQueue expected)
 
 		public static TaskQueue Create(int id)
 		{
-			TaskQueue taskQueue = new TaskQueue();
-			taskQueue.ContentUrn = string.Concat("urn:track:", id);
-			taskQueue.CreatedDate = DateTime.Now;
-			taskQueue.Task = "Load";
-			taskQueue.Status = "Pending";
-			taskQueue.NoOfAttempts = 0;
-			return taskQueue;
+		    var taskQueue = new TaskQueue
+		    {
+		        ContentUrn = string.Concat("urn:track:", id),
+		        CreatedDate = DateTime.Now,
+		        Task = "Load",
+		        Status = "Pending",
+		        NoOfAttempts = 0
+		    };
+		    return taskQueue;
 		}
 	}
 }

tests/ServiceStack.OrmLite.Tests/Expression/JoinAliasTests.cs

@@ -0,0 +1,47 @@
+using System;
+using NUnit.Framework;
+using ServiceStack.DataAnnotations;
+using ServiceStack.Text;
+
+namespace ServiceStack.OrmLite.Tests.Expression
+{
+    public class Task
+    {
+        [AutoIncrement]
+        public long Id { get; set; }
+
+        public long? ParentId { get; set; }
+
+        public DateTime Created { get; set; }
+    }
+
+    [TestFixture]
+    public class JoinAliasTests : OrmLiteTestBase
+    {
+        [Test]
+        public void Can_use_JoinAlias_in_condition()
+        {
+            using (var db = OpenDbConnection())
+            {
+                db.DropAndCreateTable<Task>();
+
+                var parentId = db.Insert(new Task { Created = new DateTime(2000, 01, 01) }, selectIdentity: true);
+                var childId = db.Insert(new Task { ParentId = parentId, Created = new DateTime(2001, 01, 01) }, selectIdentity:true);
+
+                var fromDateTime = new DateTime(2000, 02, 02);
+
+                var q = db.From<Task>()
+                    .LeftJoin<Task>((parent, history) => parent.Id == history.ParentId, db.JoinAlias("history"))
+                    .Where("history.\"Created\" >= {0} OR Task.\"Created\" >= {0}", fromDateTime);
+
+                //TODO: JOIN Alias doesn't support self-joins
+
+                var results = db.Select(q);
+
+                db.GetLastSql().Print();
+
+                results.PrintDump();
+            }
+        }
+    }
+}

tests/ServiceStack.OrmLite.Tests/ServiceStack.OrmLite.Tests.csproj

@@ -140,6 +140,7 @@
     <Compile Include="Async\SqlExpressionTests.cs" />
     <Compile Include="Async\SqlServerProviderTestsAsync.cs" />
     <Compile Include="Async\UpdateAsyncTests.cs" />
+    <Compile Include="Expression\JoinAliasTests.cs" />
     <Compile Include="Expression\SqlExpressionDeleteTests.cs" />
     <Compile Include="Expression\SqlExpressionJoinTests.cs" />
     <Compile Include="Issues\JoinAliasWithSchemaIssue.cs" />

tests/ServiceStack.OrmLite.Tests/Shared/SampleOrderLine.cs

@@ -11,13 +11,7 @@ public class SampleOrderLine
     {
         public string Id { get; set; }
 
-        public string OrderUrn
-        {
-            get
-            {
-                return CreateUrn(this.UserId, this.OrderId, this.OrderLineId);
-            }
-        }
+        public string OrderUrn => CreateUrn(this.UserId, this.OrderId, this.OrderLineId);
 
         public long OrderId { get; set; }