Add ability to search in issue description and issue comments

 * edit queries in serach context
 * edit template for result

app/contexts/search_context.rb

@@ -24,7 +24,8 @@ class SearchContext
       result[:blobs] = project.repository.search_files(query, params[:repository_ref]) unless project.empty_repo?
     else
       result[:merge_requests] = MergeRequest.in_projects(project_ids).search(query).order('updated_at DESC').limit(20)
-      result[:issues] = Issue.where(project_id: project_ids).search(query).order('updated_at DESC').limit(20)
+      result[:issues] = Issue.where(project_id: project_ids).where("title like :query OR description like :query ", query: "%#{query}%").order('updated_at DESC').limit(20)
+      result[:notes] = Note.where(noteable_type: 'issue').where(project_id: project_ids).where("note like :query", query: "%#{query}%").order('updated_at DESC').limit(20)
       result[:wiki_pages] = []
     end
   end
@@ -34,6 +35,7 @@ class SearchContext
       projects: [],
       merge_requests: [],
       issues: [],
+      notes: [],
       wiki_pages: [],
       blobs: []
     }

app/controllers/search_controller.rb

@@ -19,6 +19,7 @@ class SearchController < ApplicationController
     @projects       = result[:projects]
     @merge_requests = result[:merge_requests]
     @issues         = result[:issues]
+    @notes          = result[:notes]
     @wiki_pages     = result[:wiki_pages]
     @blobs          = Kaminari.paginate_array(result[:blobs]).page(params[:page]).per(20)
     @total_results = @projects.count + @merge_requests.count + @issues.count + @wiki_pages.count + @blobs.total_count

app/views/search/_result.html.haml

@@ -44,6 +44,17 @@
         - if issue.closed?
           %span.label Closed
 
+    - @notes.each do |note|
+      %li
+        note on issue:
+        = link_to [note.project, note.noteable] do
+          %span ##{note.noteable.iid}
+          %strong.term
+            = truncate note.noteable.title, length: 50
+        %span.light (#{note.project.name_with_namespace})
+        - if note.noteable.closed?
+          %span.label Closed
+
     - @wiki_pages.each do |wiki_page|
       %li
         wiki: