impl new RemoveItemsFromSortedSet

Author: mythz

lib/ServiceStack.Interfaces.dll

@@ -124,6 +124,11 @@ public bool RemoveItemFromSortedSet(string setId, string value)
             return base.ZRem(setId, value.ToUtf8Bytes()) == Success;
         }
 
+        public long RemoveItemsFromSortedSet(string setId, List<string> values)
+        {
+            return base.ZRem(setId, values.Map(x => x.ToUtf8Bytes()).ToArray());
+        }
+
         public string PopItemWithLowestScoreFromSortedSet(string setId)
         {
             //TODO: this should be atomic

src/ServiceStack.Redis/RedisClient_SortedSet.cs

@@ -1662,6 +1662,7 @@ public long ZRem(string setId, byte[][] values)
             var cmdWithArgs = MergeCommandWithArgs(Commands.ZRem, setId.ToUtf8Bytes(), values);
             return SendExpectLong(cmdWithArgs);
         }
+
         public double ZIncrBy(string setId, double incrBy, byte[] value)
         {
             AssertSetIdAndValue(setId, value);

src/ServiceStack.Redis/RedisNativeClient.cs

@@ -95,6 +95,22 @@ public void Can_RemoveFromSet()
             Assert.That(members, Is.EquivalentTo(storeMembers));
         }
 
+        [Test]
+        public void Can_RemoveItemsFromSortedSet()
+        {
+            var removeMembers = new[] { "two" , "four", "six" };
+
+            storeMembers.ForEach(x => Redis.AddItemToSortedSet(SetId, x));
+
+            var removeCount = Redis.RemoveItemsFromSortedSet(SetId, removeMembers.ToList());
+            Assert.That(removeCount, Is.EqualTo(2));
+
+            removeMembers.Each(x => storeMembers.Remove(x));
+
+            var members = Redis.GetAllItemsFromSortedSet(SetId);
+            Assert.That(members, Is.EquivalentTo(storeMembers));
+        }
+
         [Test]
         public void Can_PopFromSet()
         {