Facets integration

In my opinion, the correct way would be to write a Facets plugin.

In order to test this MR, check "Country name" in facets settings.

I tested this and it works nice.

What is missing is documentation that explains how to set it up (especially the "Country name" setting in the facet.)
But as this module does not have a README, we would need a separate issue for this.

So I mark this RTBC.

@batigolix Thanks for all your work on issues. Would you be able to help update the README please? Once that's done, we can merge and release a new version. Once again, thanks.

@dakala: the fork needs to be updated so that it contains a readme so it becomes possible to update it. But I dont know how to update the fork.

As an alternative I can create a new ticket for updating the readme.

@batigolix: No worries. I don't know how to update forks either. Let's go for the easiest option. I'll merge this now, since it's been tested and marked RTBC before. I'll leave the update to the README in your able hands.

Thanks all. I tried a .dev committed Facets plugin and it works nicely.

Automatically closed - issue fixed for 2 weeks with no activity.

@dakala:

I created an issue (with patch) for the improvement of the readme: ✨ Improve README.md Needs review

To assist others facing the same issue, ensure that the "Ignore Case" processor is not enabled on your index for the country field. The country codes are stored in uppercase, and the countryManager->getList() method returns keys in uppercase as well. Any conversion to lowercase will cause the functionality to break.