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Kirill Davletkildeev darkiri

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  • Scala syntax 5 questions - should be enough (?), there are question for beginner, intermediate and more advanced stuff. If not enough, more possible themes: type tags, dependent types...
    • How well do you know Option/Try/Either types from Scala standard library?
      • I heard about them, but I don't see clear benefits
      • I use them and understand the benefits, but I struggle with them
      • I fully understand why we use them and have no problems with them
    • How do you get and combine values from those types mentioned above?
      • I don't
      • I use map/flatMap most of the time
      • I try using for-comprehension most of the time
darkiri / MigratableObject.cs
Created Apr 30, 2013
Some ideas for MongoDB schema migrations using ISupportInitialize (based on
View MigratableObject.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Linq.Expressions;
namespace MongoDB.Migrations
public class MigratableObject : ISupportInitialize
darkiri / gist:3100444
Created Jul 12, 2012
Optimistic Concurrency MongoDB
View gist:3100444
var events = db.GetCollection("events");
events.Insert(new Event {Id = "1", Payload = 2});
events.Insert(new Event {Id = "1", Payload = 3}, SafeMode.True);
darkiri / gist:3100418
Created Jul 12, 2012
Optimistic Concurrency MongoDB
View gist:3100418
public class when_issuing_an_update_on_a_changed_entity : mongo_context
private static long DocumentsAffected;
private Establish context = () => SetUpDatabase();
private Because of = () => DocumentsAffected = UpdateSameObjectTwice();
private It should_not_affect_any_documents = () => Assert.That(DocumentsAffected, Is.EqualTo(0));
private static long UpdateSameObjectTwice()
darkiri / gist:3079035
Created Jul 9, 2012
Optimistic Concurrency in RavenDB
View gist:3079035
[Subject("Raven Experiments")]
public class when_storing_two_objects_with_same_id_in_separate_sessions : raven_persistence_context
static Exception Exception;
Because of = () => Exception = Catch.Exception(CreateTwoObjectsInTwoSessions);
It should_throw_concurrency_exception = () => Exception.ShouldBeOfType<ConcurrencyException>();
static void CreateTwoObjectsInTwoSessions()
darkiri / gist:3078953
Created Jul 9, 2012
Optimistic Concurrency in RavenDB
View gist:3078953
[Subject("Raven Experiments")]
public class when_updating_same_object_in_separate_sessions : raven_persistence_context
static Exception Exception;
Establish context = () => StoreSingleObject(new MyClass {Text = "this one"});
Because of = () => Exception = Catch.Exception(UpdateTwoObjectsInTwoSessions);
It should_throw_concurrency_exception = () => Exception.ShouldBeOfType<ConcurrencyException>();
static void UpdateTwoObjectsInTwoSessions()
darkiri / gist:2039990
Created Mar 14, 2012
is there a method which returns all .net base types/structs that System.Convert is able to convert to/from?
View gist:2039990
typeof (Convert)
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