FIX: add more quoting to avoid invalid terms

lib/search.rb

@@ -481,7 +481,7 @@ class Search
         t.split(/[\)\(&']/)[0]
       end.compact!
 
-      query = Post.sanitize(all_terms.map {|t| "#{PG::Connection.escape_string(t)}:*"}.join(" #{joiner} "))
+      query = Post.sanitize(all_terms.map {|t| "'#{PG::Connection.escape_string(t)}':*"}.join(" #{joiner} "))
       "TO_TSQUERY(#{locale || query_locale}, #{query})"
     end
 

spec/components/search_spec.rb

@@ -447,7 +447,7 @@ describe Search do
 
   it 'can parse complex strings using ts_query helper' do
     str = " grigio:babel deprecated? "
-    str << "page page on Atmosphere](https://atmospherejs.com/grigio/babel)xxx: aaa'\"bbb"
+    str << "page page on Atmosphere](https://atmospherejs.com/grigio/babel)xxx: aaa.js:222 aaa'\"bbb"
 
     ts_query = Search.ts_query(str, "simple")
     Post.exec_sql("SELECT to_tsvector('bbb') @@ " << ts_query)