Update Mongodb

Src/Asp.NetCore2/MongoDb.Ado.data/ExecuteNonQueryItems/UpdateManyHandler.cs

@@ -0,0 +1,34 @@
+using MongoDB.Bson.Serialization;
+using MongoDB.Bson;
+using MongoDB.Driver;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace MongoDb.Ado.data 
+{
+    public class UpdateManyHandler : IMongoOperationHandler
+    {
+        public int Handle(IMongoCollection<BsonDocument> collection, string json)
+        {
+            var documents = ParseJsonArray(json);
+            int total = 0;
+            foreach (var doc in documents)
+            {
+                var filter = doc["filter"].AsBsonDocument;
+                var update = doc["update"].AsBsonDocument;
+                var result = collection.UpdateMany(filter, update);
+                total += (int)result.ModifiedCount;
+            }
+            return total;
+        }
+
+        private List<BsonDocument> ParseJsonArray(string json)
+        {
+            if (json.TrimStart().StartsWith("["))
+                return BsonSerializer.Deserialize<List<BsonDocument>>(json);
+            return new List<BsonDocument> { BsonDocument.Parse(json) };
+        }
+    }
+
+}