FEATURE: search auto scopes on topic first

lib/search/search_result.rb

@@ -1,6 +1,10 @@
 class Search
 
   class SearchResult
+    class TextHelper
+      extend ActionView::Helpers::TextHelper
+    end
+
     attr_accessor :type, :id
 
     # Category attributes
@@ -36,14 +40,27 @@ class Search
       end
     end
 
-    def self.from_topic(t)
-      SearchResult.new(type: :topic, id: t.id, title: t.title, url: t.relative_url)
+    def self.from_topic(t, custom_title=nil)
+      SearchResult.new(type: :topic, id: t.id, title: custom_title || t.title, url: t.relative_url)
     end
 
-    def self.from_post(p)
+    def self.from_post(p, context, term)
+      custom_title =
+        if context && context.id == p.topic_id
+          excerpt = TextHelper.excerpt(p.raw, term.split(/\s+/)[0], radius: 30)
+          excerpt = TextHelper.truncate(p.raw, length: 50) if excerpt.blank?
+          I18n.t("search.within_post",
+                 post_number: p.post_number,
+                 username: p.user && p.user.username,
+                 excerpt: excerpt
+                )
+        end
+
       if p.post_number == 1
         # we want the topic link when it's the OP
-        SearchResult.from_topic(p.topic)
+        SearchResult.from_topic(p.topic, custom_title)
+      elsif context && context.id == p.topic_id
+        SearchResult.new(type: :topic, id: "_#{p.id}", title: custom_title, url: p.url)
       else
         SearchResult.new(type: :topic, id: p.topic.id, title: p.topic.title, url: p.url)
       end