handle callback block in rails/convert_active_record_dirty_5_0_to_5_1

lib/rails/convert_active_record_dirty_5_0_to_5_1.rb

@@ -120,7 +120,19 @@ def call_after_create
       #
       #     after_save :invalidate_cache, if: :status_changed?
       with_node type: 'send', receiver: nil, message: callback_name do
-        custom_callback_names << node.arguments[0].to_value if node.arguments[0].type == :sym
+        custom_callback_names << node.arguments[0].to_value if !node.arguments.empty? && node.arguments[0].type == :sym
+        callback_changes.each do |before_name, after_name|
+          convert_dirty_api_change(before_name, after_name, attributes)
+        end
+      end
+
+      # find callback like
+      #
+      #     before_save do
+      #       if status_chagned?
+      #       end
+      #     end
+      with_node type: 'block', caller: { type: 'send', receiver: nil, message: callback_name } do
         callback_changes.each do |before_name, after_name|
           convert_dirty_api_change(before_name, after_name, attributes)
         end

spec/rails/convert_active_record_dirty_5_0_to_5_1_spec.rb

@@ -27,6 +27,11 @@ class Post < ActiveRecord::Base
         after_update :call_after_update, unless: :title_changed?
         after_save :call_after_save, if: -> { status_changed? || summary_changed? }
 
+        before_save do
+          if title_changed?
+          end
+        end
+
         def call_before_create
           if title_changed?
             changes
@@ -51,6 +56,11 @@ class Post < ActiveRecord::Base
         after_update :call_after_update, unless: :saved_change_to_title?
         after_save :call_after_save, if: -> { saved_change_to_status? || saved_change_to_summary? }
 
+        before_save do
+          if will_save_change_to_title?
+          end
+        end
+
         def call_before_create
           if will_save_change_to_title?
             changes_to_save