Move organizing of comments to helper.

app/helpers/diff_helper.rb

@@ -103,4 +103,18 @@ module DiffHelper
   def line_comments
     @line_comments ||= @line_notes.group_by(&:line_code)
   end
+
+  def organize_comments(type_left, type_right, line_code_left, line_code_right)
+    comments_left = comments_right = nil
+
+    unless type_left.nil? && type_right == 'new'
+      comments_left = line_comments[line_code_left]
+    end
+
+    unless type_left.nil? && type_right.nil?
+      comments_right = line_comments[line_code_right]
+    end
+
+    [comments_left, comments_right]
+  end
 end

app/views/projects/diffs/_parallel_view.html.haml

@@ -5,7 +5,7 @@
       - type_left = line[0]
       - line_number_left = line[1]
       - line_content_left = line[2]
-      - line_code = line[3]
+      - line_code_left = line[3]
       - type_right = line[4]
       - line_number_right = line[5]
       - line_content_right = line[6]
@@ -16,31 +16,25 @@
           = render "projects/diffs/match_line_parallel", { line: line_content_left,
           line_old: line_number_left, line_new: line_number_right }
         - elsif type_left ==  'old' || type_left.nil?
-          %td.old_line{id: line_code, class: "#{type_left}"}
-            = link_to raw(line_number_left), "##{line_code}", id: line_code
-            %td.line_content{class: "parallel noteable_line #{type_left} #{line_code}", "line_code" => line_code }= raw line_content_left
+          %td.old_line{id: line_code_left, class: "#{type_left}"}
+            = link_to raw(line_number_left), "##{line_code_left}", id: line_code_left
+            %td.line_content{class: "parallel noteable_line #{type_left} #{line_code_left}", "line_code" => line_code_left }= raw line_content_left
 
           - if type_right == 'new'
             - new_line_class = 'new'
             - new_line_code = line_code_right
           - else
             - new_line_class = nil
-            - new_line_code = line_code
+            - new_line_code = line_code_left
 
           %td.new_line{id: new_line_code, class: "#{new_line_class}", data: { linenumber: line_number_right }}
             = link_to raw(line_number_right), "##{new_line_code}", id: new_line_code
             %td.line_content.parallel{class: "noteable_line #{new_line_class} #{new_line_code}", "line_code" => new_line_code}= raw line_content_right
 
       - if @reply_allowed
-        - if type_left.nil? && type_right == 'new'
-          - comments1 = nil
-        - else
-          - comments1 = line_comments[line_code]
-        - unless type_left.nil? && type_right.nil?
-          - comments2 = line_comments[line_code_right]
-
-        - if comments1.present? || comments2.present?
-          = render "projects/notes/diff_notes_with_reply_parallel", notes1: comments1, notes2: comments2
+        - comments_left, comments_right = organize_comments(type_left, type_right, line_code_left, line_code_right)
+        - if comments_left.present? || comments_right.present?
+          = render "projects/notes/diff_notes_with_reply_parallel", notes1: comments_left, notes2: comments_right
 
 - if diff_file.diff.diff.blank? && diff_file.mode_changed?
   .file-mode-changed