Can Solr boost results on number of social “likes”?

Question

I am trying to order the results based on the number of \"likes\".

The most obvious solution is to have a \"likes\" field for each row and re-index

Answer 1

Also take a look at click-through relevance ranking presentation

Answer 2

Take a look at ExternalFileField. There isn't a lot of documentation about it at the moment, but see this presentation.