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  1. C# Driver
  2. CSHARP-4519

UpdateDefinition can't handle casts when combined (multiple Set)

    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Unknown Unknown
    • None
    • Affects Version/s: 2.18.0, 2.19.0
    • Component/s: LINQ3
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      1. What would you like to communicate to the user about this feature?
      2. Would you like the user to see examples of the syntax and/or executable code and its output?
      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

      Summary

      UpdateDefinition can't handle casts when combined (calling multiple Set).

      Driver version: 2.19.0

      Repro

       

      using System.Linq.Expressions;
      using MongoDB.Driver;
      using MongoDB.Driver.Linq;
      var mongoUrl = MongoUrl.Create("mongodb://admin:123456@localhost/management_reports?authMechanism=SCRAM-SHA-1;authSource=admin;minPoolSize=1;retryWrites=true");
      var clientSettings = MongoClientSettings.FromUrl(mongoUrl);
      clientSettings.LinqProvider = LinqProvider.V3;
      var client = new MongoClient(clientSettings);
      var db = client.GetDatabase("test");
      var carCollection = db.GetCollection<Car>("cars");
      var updateDef = GetUpdateFieldDefinition((t => t.Type, "super-fast"), (t => t.Price, 100m));
      await carCollection.UpdateManyAsync(t => t.Type == "fast", updateDef);
      Console.ReadKey();
      static UpdateDefinition<Car> GetUpdateFieldDefinition(params (Expression<Func<Car, object>> fieldSelector, object value)[] fieldsToUpdate)
      {
          UpdateDefinition<Car> updateDefinition = null;
          foreach (var (fieldSelector, value) in fieldsToUpdate)
          {
              updateDefinition = updateDefinition?.Set(fieldSelector, value) ?? Builders<Car>.Update.Set(fieldSelector, value);
          }
          return updateDefinition;
      }
      public class Car
      {
          public string Type { get; set; }
          public decimal Price { get; set; }
      }
      

       

            Assignee:
            robert@mongodb.com Robert Stam
            Reporter:
            alexandre.murari@flashapp.com.br Alexandre Junior
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              Created:
              Updated:
              Resolved: