From 1aaca5d76d7ee9a741f41b001119eb50a9f063f1 Mon Sep 17 00:00:00 2001
From: mythz <demis.bellot@gmail.com>
Date: Fri, 21 Sep 2012 12:52:29 -0400
Subject: [PATCH] Allow calling DeleteAll<T> when there are no ids for T

---
 src/ServiceStack.Redis/Generic/RedisTypedClient.cs | 14 ++++++++++----
 src/ServiceStack.Redis/RedisClient.cs              | 11 +++++++----
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/src/ServiceStack.Redis/Generic/RedisTypedClient.cs b/src/ServiceStack.Redis/Generic/RedisTypedClient.cs
index 5b23df7a..9386101a 100644
--- a/src/ServiceStack.Redis/Generic/RedisTypedClient.cs
+++ b/src/ServiceStack.Redis/Generic/RedisTypedClient.cs
@@ -441,15 +441,21 @@ public void DeleteByIds(IEnumerable ids)
 			if (ids == null) return;
 
 			var urnKeys = ids.ConvertAll(t => client.UrnKey<T>(t));
-			this.RemoveEntry(urnKeys.ToArray());
-			client.RemoveTypeIds<T>(ids.ConvertAll(x => x.ToString()).ToArray());
+            if (urnKeys.Count > 0)
+            {
+                this.RemoveEntry(urnKeys.ToArray());
+                client.RemoveTypeIds<T>(ids.ConvertAll(x => x.ToString()).ToArray());
+            }
 		}
 
 		public void DeleteAll()
 		{
 			var urnKeys = client.GetAllItemsFromSet(this.TypeIdsSetKey);
-			this.RemoveEntry(urnKeys.ToArray());
-			this.RemoveEntry(this.TypeIdsSetKey);
+            if (urnKeys.Count > 0)
+            {
+                this.RemoveEntry(urnKeys.ToArray());
+                this.RemoveEntry(this.TypeIdsSetKey);
+            }
 		}
 
 		#endregion
diff --git a/src/ServiceStack.Redis/RedisClient.cs b/src/ServiceStack.Redis/RedisClient.cs
index a1c1c7a5..eaf8182a 100644
--- a/src/ServiceStack.Redis/RedisClient.cs
+++ b/src/ServiceStack.Redis/RedisClient.cs
@@ -647,7 +647,7 @@ public void Delete<T>(T entity)
 
 		public void DeleteByIds<T>(ICollection ids) where T : class, new()
 		{
-			if (ids == null) return;
+			if (ids == null || ids.Count == 0) return;
 
 			var urnKeys = ids.ConvertAll(UrnKey<T>);
 			this.RemoveEntry(urnKeys.ToArray());
@@ -658,9 +658,12 @@ public void Delete<T>(T entity)
 		{
 			var typeIdsSetKey = this.GetTypeIdsSetKey<T>();
 			var ids = this.GetAllItemsFromSet(typeIdsSetKey);
-            var urnKeys = ids.ConvertAll(UrnKey<T>);
-			this.RemoveEntry(urnKeys.ToArray());
-			this.Remove(typeIdsSetKey);
+            if (ids.Count > 0)
+            {
+                var urnKeys = ids.ConvertAll(UrnKey<T>);
+                this.RemoveEntry(urnKeys.ToArray());
+                this.Remove(typeIdsSetKey);
+            }
 		}
         
         /// <summary>