Negative facets not displayed when the mincount is 0 [#1306008]

See #1305052: Negative facets not displayed when the mincount is 0

Original post by @cpliakas:

The "negative facet" pattern allows for facets with no results to be displayed. See this screenshot for more details on what this pattern looks like. This is achieved by setting the "Minimum facet count" setting to 0 in the Facet API interface. Even when setting this to 0, the facets are stripped out by Apache Solr Search Integration and never displayed due to logic in the ApacheSolrFacetapiTerm::build() method that always strips facets with 0 results.

Comment	File	Size	Author
#2	1306008--allow-facets-with-no-results-2.patch	2.09 KB	drunken monkey
#1	1306008-negative-facets.patch	1.48 KB	damien tournoud

Comments

Comment #1

damien tournoud commented 11 October 2011 at 12:08

Status:

Active

» Needs review

Status	File	Size
new	1306008-negative-facets.patch	1.48 KB

Port of the Apachesolr patch.

Comment #2

drunken monkey

he/him

German

Vienna, Austria

commented 14 October 2011 at 20:51

Status	File	Size
new	1306008--allow-facets-with-no-results-2.patch	2.09 KB

Ah, yes, that is an unnecessary restriction. Didn't know Solr could do this natively, though. But it should of course be supported in any case.
I just think that we can then remove the condition altogether – it's now just $value['count'] >= $settings->settings['facet_mincount'] essentially, and that should already always hold due to the contract for facets returned by the server.

Please see/test/review the attached patch.

Comment #3

derekwebb1 commented 30 January 2012 at 20:45

subscribing - with search_api 7.x-1.0 and facetapi at 7.x-1.0-rc1, the mincount is still not working as desired when the count is set to 0 on my setup.

Comment #4

valderama commented 2 February 2012 at 13:27

I wonder if I get it right?
The patch above respects the facet_mincount setting for the apache solr backend. When using the search_api_db Backend there is still no way to keep the facets with no results visible?

Thanks,
Walter

Comment #5

danielnolde commented 9 July 2012 at 05:49

Damien, Thomas, all others:

i have the same questions as valderama: The patch bei Damien only solves the problem for Apache Solr backend, noch the search_api_db backend, right?
Could a negative facet pattern be implemented on top of db search at all?
What about an "OR"-ing of multiple active facet items?

Comment #6

drunken monkey

he/him

German

Vienna, Austria

commented 24 August 2012 at 10:58

In principle this would be possible to implement, yes. Maybe we can add a feature/option for that?
However, this is a different issuem, I guess. This one is just about fixing the mincount.
So, does the last patch work?

Comment #7

markwittens commented 19 September 2012 at 14:54

I can confirm the last patch applies smoothly and works as expected. I would like to be able to style the negative items in a different way but there are no extra classes for this in the filter facets, not sure if this is the right place to ask about this?