使用Raven 2.0加入文档 - 找不到索引?

时间:2013-01-08 22:30:48

标签: ravendb

我是RavenDB的新手,我有一个关于使用Raven 2.0加入两个文档的问题

我发现此页面http://daniellang.net/joining-documents-in-ravendb-2-0/帮助我找到了加入两个文档的解决方案。

请先查看我的代码(编译)

internal class Program
{
    private static void Main(string[] args)
    {
        using (var store = new EmbeddableDocumentStore {DataDirectory = @"C:\temp\ravendata"}.Initialize())
        {
            using (var session = store.OpenSession())
            {
                var products = session.Query<Product, UserProducts>()
                                      .AsProjection<UserProductProjection>()
                                      .ToList();
            }
        }
    }
}

public class Product
{
    public string Id { get; set; }
    public string Name { get; set; }
    public string UserId { get; set; }
}

public class User
{
    public string Id { get; set; }
    public string Name { get; set; }
}

public class UserProductProjection
{
    public string Id { get; set; }
    public string UserName { get; set; }
    public string ProductName { get; set; }
    public string ProductId { get; set; }
}

internal class UserProducts : AbstractIndexCreationTask<Product, UserProductProjection>
{
    public UserProducts()
    {
        Map = products => from product in products
                          select new
                                 {
                                     UserName = LoadDocument<User>(product.UserId).Name,
                                     ProductName = product.Name,
                                     ProductId = product.Id
                                 };

        Index(projection => projection.ProductId, FieldIndexing.Analyzed);
        Index(projection => projection.ProductName, FieldIndexing.Analyzed);
        Store(projection => projection.UserName, FieldStorage.Yes);
    }
}

不幸的是它不起作用:(

Raven.Database.Exceptions.IndexDoesNotExistsException was unhandled
  HResult=-2146233088
  Message=Could not find index named: UserProducts
  Source=Raven.Database
  StackTrace:
       at Raven.Database.DocumentDatabase.<>c__DisplayClass9a.<Query>b__90(IStorageActionsAccessor actions) in c:\Builds\RavenDB-Stable\Raven.Database\DocumentDatabase.cs:line 1100
  ....

我真的没有任何线索! Google也没有帮助我解决这个问题,因为我发现它仍然很新。

如果某人有提示或解决方案,我将非常感激。

1 个答案:

答案 0 :(得分:2)

虽然您已经定义了索引,但尚未在ravendb中创建它。

请参阅Defining a static index,但基本上你需要......

IndexCreation.CreateIndexes(typeof(UserProducts).Assembly, documentStore);