Question

I have a Content Type “News” with custom field “NewsDate” (DateTimeField) and “Active” (BooleanField)

Now I’m need to get 3 active atimes order desc by NewsDate

Get all news, make them toList() and from there manipulate the data is not a solution.

P.S. I need to do something like:

        var items = contentManager
            .Query(Entities[PageType.Press])
            .OrderByDescending<CommonPartRecord, DateTime?>(record => record.PublishedUtc)
            .Slice(0, 3);

but instead of PublishedUTC use my custom field “NewsDate” and add Active == true, However it is not possible due to Orchard architecture of storing custom data in a separate field as XML data.

UPDATED:
In a nutshell I want to generate from code behind the following Query:

DECLARE @temp as TABLE(id int, xmldata xml)
INSERT @temp VALUES(1,'<Data><News><NewsDate>07/14/2011 11:42:00</NewsDate><Link Title="" DisplayText="" Link="www.example.com" OpenInNewTab="True">www.example.com</Link></News></Data>')
INSERT @temp VALUES(2,'<Data><News><NewsDate>07/11/2011 12:11:00</NewsDate><Link Title="" DisplayText="" Link="www.example.com" OpenInNewTab="True">www.example.com</Link></News></Data>')
INSERT @temp VALUES(3,'<Data><News><NewsDate>02/21/2012 16:56:00</NewsDate><Link Title="" DisplayText="" Link="www.example.com" OpenInNewTab="True">www.example.com</Link><NewsLink></NewsLink></News></Data>')

SELECT  
 TOP 3 [id],
[xmldata].value('(Data/News/NewsDate)[1]', 'datetime') as NewsDate
FROM @temp
ORDER BY NewsDate DESC

P.S. I looked through the code for DynamicContentQueryTests, however all the examples uses the Part, and in my case Fields are just in the ContentItem:
E.g. News content type contains NewsDate field (datetime field) and some parts as well

Any suggestions are greatly appreciated.

Answer 1

Querying fields is possible since 1.4 through Projector and underlying index tables and new APIs on Content Manager. Your simplest bet actually may be to create a projection.