mongodb-csharp-2.0

The interface of MongoDB has completely changed from the previous one. Here you can see the official documentation with some examples about how to search, insert and update but what about upserts? Idea for meta: I've tried to search on google and on SO but many resources refer to the old interface. Maybe it would be nice to create a MongoLegacy tag. Pass an instance of UpdateOptions as the options parameter in UpdateOneAsync(filter, update, options) , e.g.: collection.UpdateOneAsync(p => p.Id == user.Id, Builders<User>.Update.Set(p => p.Name, "John"), new UpdateOptions { IsUpsert = true });

i found the way to check is the value contains in simple array : var filter = Builders<Post>.Filter.AnyEq(x => x.Tags, "mongodb"); But how to find a complex item with many fields by a concrete field ? I found the way to write it via the dot notation approach with BsonDocument builder, but how can i do it with typed lambda notations ? upd i think it some kind of builderInst.AnyIn(p => p.ComplexCollection.Select(ml => ml.Id), mlIds) but can't check right now, is anyone could help ? There is ElemMatch var filter = Builders<Post>.Filter.ElemMatch(x => x.Tags, x => x.Name == "test"); var res =

From the mongoDB.Driver docs ( http://docs.mongodb.org/ecosystem/tutorial/getting-started-with-csharp-driver/ ) Get a Reference to a Server Object To get a reference to a server object from the client object, write this: var server = client.GetServer(); In the latest release the GetServer method is gone, but the doc have not been updated, what do we use now? Thanks for your time. GetServer is part of the old API. To use the new, shiny and async -ready API simply call GetDatabase directly on the client to get an IMongoDatabase and GetCollection on it to get an IMongoCollection : var db = client

I have many complex queries that I sometimes wish to check directly against Mongo for debugging \ explaining() purposes. With the newer 2.0+ c# driver, i'm not sure how to do this. With the previous version there was a thing called IMongoQuery and This worked. A simple example: FilterDefinition<LalalaEvent> filter = Builders<LalalaEvent>.Filter .Where(e => ids.Contains(e.Id) && e.Deleted != true ); If you're using the latest version of the driver, which is 2.0.1 you can easily put that filter in a Find operation, get back an IFindFluent and print its ToString : var filter = Builders

I am using MongoDB.Driver 2.0.0. Is there any way to see a generated script from linq to MongoDB? For example my query is like: IFindFluent<ProductMapping, ProductMapping> findFluent = Collection.Find( x => hashValues.Contains(x.UrlHash) && x.ProductTopic == topicId); How would this (or more complex queries) be represented in the MongoDB shell? EDIT Please see i3arnon's answer for a client-side method using Render() that is usually easier. You can use the integrated mongodb profiler to see what the database has actually received: db.setProfilingLevel(2); // log every request // show the

I've recently moved to the new MongoDB C# driver v2.0 from the deprecated v1.9 . Now, when I serialize a class that has a dictionary I sometimes run into the following BsonSerializationException : MongoDB.Bson.BsonSerializationException: When using DictionaryRepresentation.Document key values must serialize as strings. Here's a minimal reproduce: class Hamster { public ObjectId Id { get; private set; } public Dictionary<DateTime,int> Dictionary { get; private set; } public Hamster() { Id = ObjectId.GenerateNewId(); Dictionary = new Dictionary<DateTime, int>(); Dictionary[DateTime.UtcNow] = 0;

I am writing a very, very simple query which just gets a document from a collection according to its unique Id. After some frusteration (I am new to mongo and the async / await programming model), I figured this out: IMongoCollection<TModel> collection = // ... FindOptions<TModel> options = new FindOptions<TModel> { Limit = 1 }; IAsyncCursor<TModel> task = await collection.FindAsync(x => x.Id.Equals(id), options); List<TModel> list = await task.ToListAsync(); TModel result = list.FirstOrDefault(); return result; It works, great! But I keep seeing references to a "Find" method, and I worked