search autocomplete

app/models/artist.rb

@@ -1,8 +1,19 @@
 class Artist < ActiveRecord::Base
 	set_table_name 'musicbrainz.bh_artist'
 	has_many :albums, :conditions => "release_type = 1", :order => 'year ASC, id ASC'
-	
+
 	def self.getByName(name)
 		Artist.first(:conditions => ['name = ? AND id=credit_id', name], :order => 'rating DESC')
 	end
+
+	def self.getLastFmAutocomplete(query)
+		return nil if query.nil? or query.strip.empty?
+
+		json = ActiveSupport::JSON.decode(open(
+		    'http://www.last.fm/search/autocomplete' <<
+		    '?q=' << URI.escape(query)
+    	).read)
+    	return nil if json.empty? else return json
+	end
 end
+