Showing content from https://gist.github.com/3798206 below:
Dynamic Chained API (playing around to see possibilities) ยท GitHub
using System; using System.Dynamic; using System.Linq; using System.Reflection; using Raven.Client; using Raven.Client.Document; using Raven.Json.Linq; namespace ChainedAPISample { class Program { static void Main(string[] args) { var documentStore = (new DocumentStore() { DefaultDatabase = "Testing", Url = "http://localhost:8080" }).Initialize(); using (dynamic chainer = documentStore.OpenDynamicSession()) { chainer.Posts.insert(new { Name = "Rabbit" }, "909"); chainer.Posts.Insert(new { Name = "Banana" }, "123"); chainer.People.insert(new { FirstName = "Phillip" }, "1"); chainer.People.Insert(new { FirstName = "Prabir" }, "2"); chainer.SaveChanges(); } using (dynamic chainer = documentStore.OpenDynamicSession()) { dynamic result = chainer.Posts.load(123); Console.WriteLine(result.Name); dynamic result2 = chainer.Posts.Load(909); Console.WriteLine(result2.Name); dynamic result3 = chainer.People.load(1); Console.WriteLine(result3.FirstName); dynamic result4 = chainer.People.Load(2); Console.WriteLine(result4.FirstName); } Console.ReadKey(); } } public class Chainer : DynamicObject, IDisposable { protected IDocumentSession Session { get; set; } public Chainer(IDocumentSession session) { Session = session; } public override bool TryGetMember(GetMemberBinder binder, out object result) { result = new ChainBuilder(this, Session, binder.Name); return true; } private class ChainBuilder : DynamicObject { private dynamic OriginalObject { get; set; } private IDocumentSession Session { get; set; } private string CollectionName { get; set; } private static Type documentSessionType = typeof (IDocumentSession); public ChainBuilder(DynamicObject originalObject, IDocumentSession session, string collection) { OriginalObject = originalObject; Session = session; CollectionName = collection; } public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result) { if (binder.Name.Equals("load", StringComparison.OrdinalIgnoreCase)) { var generic = GetLoadMethod(); var id = CollectionName.ToLower() + "/" + args[0]; result = generic.Invoke(Session, new object[] { id }); return true; } if (binder.Name.Equals("insert", StringComparison.OrdinalIgnoreCase)) { MethodInfo method = GetStoreMethod(); var id = CollectionName.ToLower() + "/" + args[1]; var objectToStore = args[0] as object; method.Invoke(Session, new []{objectToStore, id}); RavenJObject metadata = Session.Advanced.GetMetadataFor(objectToStore); metadata["Raven-Entity-Name"] = CollectionName; result = null; return true; } return base.TryInvokeMember(binder, args, out result); } private static MethodInfo GetLoadMethod() { MethodInfo method = documentSessionType.GetMethods().FirstOrDefault(x => x.Name == "Load"); MethodInfo generic = method.MakeGenericMethod(typeof (object)); return generic; } private static MethodInfo GetStoreMethod() { return documentSessionType.GetMethods() .Where(x => { if (x.Name != "Store") return false; var methodParams = x.GetParameters(); if (methodParams.Length != 2) return false; if (methodParams[1].ParameterType == typeof(string)) return true; return false; }) .FirstOrDefault(); } } public void SaveChanges() { Session.SaveChanges(); } public void Dispose() { Session.Dispose(); } } public static class DynamicSessionExtension { public static Chainer OpenDynamicSession(this IDocumentStore store) { var chainer = new Chainer(store.OpenSession()); return chainer; } } }
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