Merge pull request #1295 from markuslindberg/feature/mapping-transform-script-file

Added script_file to transform mapping

Author: Mpdreamz

src/Nest/Domain/Mapping/Descriptors/MappingTransformDescriptor.cs

@@ -14,7 +14,13 @@ public MappingTransformDescriptor Script(string script)
 		{
 			this._mappingTransform.Script = script;
 			return this;
-		}
+		}
+
+        public MappingTransformDescriptor ScriptFile(string scriptFile)
+        {
+            this._mappingTransform.ScriptFile = scriptFile;
+            return this;
+        }
 
 		public MappingTransformDescriptor Params(IDictionary<string, string> parameters)
 		{

src/Nest/Domain/Mapping/SubMappings/MappingTransform.cs

@@ -11,7 +11,10 @@ namespace Nest
 	public class MappingTransform
 	{
 		[JsonProperty("script")]
-		public string Script { get; set; }
+		public string Script { get; set; }
+
+        [JsonProperty("script_file")]
+        public string ScriptFile { get; set; }
 
 		[JsonProperty("params")]
 		public IDictionary<string, string> Parameters { get; set; }