How to filter out file types

Fredrik von Werder

Vote:

How can I, in the search, easily filter out files that I do not want to get

I would like to exclude all jpg, gif, png files for example

Is it possible to add a .Filter() or something here?

SearchClient.Instance.Search<UnifiedFile>(Language.Swedish)
.Take(300)
.GetResult();

#61802

Oct 02, 2012 12:21

Marcus Granström

Vote:

Hi Fredrik,

Yes you can. This is an example of how to filter away files by there extension

var result = client.Search<UnifiedFile>()
.Filter(x => !x.Extension.Match(".gif"))
.GetFilesResult();

If you never want to search for them, then best thing would to remove them at indexing time so they never enter the index. This could be done by setting up a convention for them.

FileIndexer.Instance.Conventions.ForInstancesOf<UnifiedFile>().ShouldIndex(x => !x.Extension.Equals(".gif"));

Hope that helps you.

#61803

Oct 02, 2012 13:02

Fredrik von Werder

Vote:

Thanks Marcus, works fine!

#61806

Oct 02, 2012 13:38

Joel Abrahamsson

Vote:

Hi Fredrik,

Just out of curiousity, is there any particular reason you're doing Take(300)? In general you should only Take(Number_of_hits_that_should_be_displayed) and then do paging using using Skip(). That is,

var pageSize = 10;
var pageNum = //From query string or whatever

.Skip((pageNum-1)*pageSize)
.Take(pageSize);

That way you won't be sending more data than needed over the wire and users will get snappier results. Then of course, sometimes there are exceptions.. :)

#61819

Oct 02, 2012 20:34

Fredrik von Werder

Vote:

Hi Joel,

Well that was when I was much younger and before I knew how to filter out the bad extensions (gif, jpg etc) from the resultset directly in the request (as Marcus pointed out in this thread). So I did the filtering on my end, bad performance of course, and just a nasty workaround.

Now I know better, and I surely will only fetch the items I actually need.

But there could be exceptions... ;-)

#61825

Oct 03, 2012 8:55