add search filter

app/controllers/list_controller.rb

@@ -269,7 +269,8 @@ class ListController < ApplicationController
       ascending: params[:ascending],
       min_posts: params[:min_posts],
       max_posts: params[:max_posts],
-      status: params[:status]
+      status: params[:status],
+      search: params[:search]
     }
     options[:no_subcategories] = true if params[:no_subcategories] == 'true'
 

lib/search.rb

@@ -232,10 +232,20 @@ class Search
       posts.limit(limit)
     end
 
-    def query_locale
+    def self.query_locale
       @query_locale ||= Post.sanitize(Search.long_locale)
     end
 
+    def query_locale
+      self.class.query_locale
+    end
+
+    def self.ts_query(term)
+      all_terms = term.gsub(/[:()&!'"]/,'').split
+      query = Post.sanitize(all_terms.map {|t| "#{PG::Connection.escape_string(t)}:*"}.join(" & "))
+      "TO_TSQUERY(#{query_locale}, #{query})"
+    end
+
     def ts_query
       @ts_query ||= begin
         all_terms = @term.gsub(/[:()&!'"]/,'').split

lib/topic_query.rb

@@ -22,7 +22,9 @@ class TopicQuery
                      ascending
                      no_subcategories
                      no_definitions
-                     status).map(&:to_sym)
+                     status
+                     search
+                     ).map(&:to_sym)
 
   # Maps `order` to a columns in `topics`
   SORTABLE_MAPPING = {
@@ -259,6 +261,10 @@ class TopicQuery
         result = result.where('topics.id in (?)', options[:topic_ids]).references(:topics)
       end
 
+      if search = options[:search]
+        result = result.where("topics.id in (select pp.topic_id from post_search_data pd join posts pp on pp.id = pd.post_id where pd.search_data @@ #{Search.ts_query(search.to_s)})")
+      end
+
       if status = options[:status]
         case status
         when 'open'