Time for action – indexing related documents

You will create the Cities_RelatedCountry index which will implement the LoadDocuement() method. Then you will query this index while running the RavenDB_Ch06 project using the Management Studio.

1. Open the RavenDB_Ch06 project in Visual Studio.

2. Add a new class and name it Cities_RelatedCountry.

3. Complete the Cities_RelatedCountry class definition using the following code snippet:

   

4. Add the index's Map function within the class constructor using the following code snippet:

   

5. Add the following code snippet to the Main() method:

   

6. Save all the files, build and run the solution.

What just happened?

You just learned how to index related documents in RavenDB. In order to implement this feature, you called the LoadDocument() method within the Cities_RelatedCountry index's Map function.

The index's Map function defines three fields: Name, Population which will hold values from the City document, and CountryName which will hold information from the Country document....