Support for minimum_should_match option on query_string_query #1356

Author: robertlyson

src/Nest/DSL/Query/SimpleQueryStringQueryDescriptor.cs

@@ -36,6 +36,9 @@ public interface ISimpleQueryStringQuery : IQuery
 
 		[JsonProperty(PropertyName = "locale")]
 		string Locale { get; set; }
+
+		[JsonProperty("minimum_should_match")]
+		string MinimumShouldMatch { get; set; }
 	}
 
 	public class SimpleQueryStringQuery : PlainQuery, ISimpleQueryStringQuery
@@ -54,6 +57,7 @@ protected override void WrapInContainer(IQueryContainer container)
 		public bool? LowercaseExpendedTerms { get; set; }
 		public string Flags { get; set; }
 		public string Locale { get; set; }
+		public string MinimumShouldMatch { get; set; }
 	}
 
 	public class SimpleQueryStringQueryDescriptor<T> : ISimpleQueryStringQuery where T : class
@@ -75,6 +79,7 @@ public class SimpleQueryStringQueryDescriptor<T> : ISimpleQueryStringQuery where
 		string ISimpleQueryStringQuery.Flags { get; set; }
 
 		string ISimpleQueryStringQuery.Locale { get; set; }
+		string ISimpleQueryStringQuery.MinimumShouldMatch { get; set; }
 
 		string IQuery.Name { get; set; }
 
@@ -159,5 +164,10 @@ public SimpleQueryStringQueryDescriptor<T> Locale(string locale)
 			return this;
 		}
 
-	}
+		public SimpleQueryStringQueryDescriptor<T> MinimumShouldMatch(string minimumShouldMatch)
+		{
+			Self.MinimumShouldMatch = minimumShouldMatch;
+			return this;
+		}
+    }
 }

src/Tests/Nest.Tests.Unit/QueryParsers/Queries/SimpleQueryStringQueryTests.cs

@@ -20,6 +20,7 @@ public void SimpleQueryString_Deserializes()
 					.DefaultField(p=>p.Name)
 					.OnFields(p=>p.Name, p=>p.Origin)
 					.Query("some query")
+					.MinimumShouldMatch("50%")
 					)
 				);
 			q.Analyzer.Should().Be("my-analyzer");
@@ -30,7 +31,7 @@ public void SimpleQueryString_Deserializes()
 			q.DefaultField.Should().Be("name");
 			q.Fields.Should().BeEquivalentTo(new []{ "name", "origin"});
 			q.Query.Should().Be("some query");
-
+			q.MinimumShouldMatch.Should().Be("50%");
 		}
 	}
 }