acts_as_searchable is one of the most useful plugins which's enabling us to add a fulltext search feature to our models/resources easily.

Unfortunately, it is lacking an interface to the features of searching by similarity provided by HyperEstraier.

So I wrote some codes to add an interface to exploit it. This is acts_as_searchable_with_similarity.

How to use?

Here is an example.

app/models/article.rb

   1  class Article < ActiveRecord::Base
   2    acts_as_searchable
   3  end
   4  
   5  Article.similarity_search(target_article,  :limit => 5)