Created alias to map issues `service_desk_reply_to` to `external_author`

app/mailers/emails/service_desk.rb

@@ -47,7 +47,7 @@ module Emails
     def service_desk_options(email_sender, email_type)
       {
         from: email_sender,
-        to: @issue.service_desk_reply_to
+        to: @issue.external_author
       }.tap do |options|
         next unless template_body = template_content(email_type)
 

app/models/issue.rb

@@ -90,6 +90,8 @@ class Issue < ApplicationRecord
   alias_attribute :parent_ids, :project_id
   alias_method :issuing_parent, :project
 
+  alias_attribute :external_author, :service_desk_reply_to
+
   scope :in_projects, ->(project_ids) { where(project_id: project_ids) }
   scope :not_in_projects, ->(project_ids) { where.not(project_id: project_ids) }
 

app/services/notification_service.rb

@@ -353,7 +353,7 @@ class NotificationService
     issue = note.noteable
     support_bot = User.support_bot
 
-    return unless issue.service_desk_reply_to.present?
+    return unless issue.external_author.present?
     return unless issue.project.service_desk_enabled?
     return if note.author == support_bot
     return unless issue.subscribed?(support_bot, issue.project)

changelogs/unreleased/225281-add-external_author-alias-for-service_desk_reply_to.yml

+---
+title: Add `external_author` alias to `service_desk_reply_to`
+merge_request: 48363
+author: Lee Tickett
+type: other

lib/gitlab/email/handler/service_desk_handler.rb

@@ -78,7 +78,7 @@ module Gitlab
             title: issue_title,
             description: message_including_template,
             confidential: true,
-            service_desk_reply_to: from_address
+            external_author: from_address
           ).execute
 
           raise InvalidIssueError unless @issue.persisted?

lib/gitlab/import_export/project/import_export.yml

@@ -220,6 +220,7 @@ excluded_attributes:
     - :duplicated_to_id
     - :promoted_to_epic_id
     - :blocking_issues_count
+    - :service_desk_reply_to
   merge_request:
     - :milestone_id
     - :sprint_id

spec/fixtures/lib/gitlab/import_export/designs/project.json

@@ -61,7 +61,7 @@
          "lock_version":0,
          "time_estimate":0,
          "relative_position":1073742323,
-         "service_desk_reply_to":null,
+         "external_author":null,
          "last_edited_at":null,
          "last_edited_by_id":null,
          "discussion_locked":null,
@@ -244,7 +244,7 @@
          "lock_version":0,
          "time_estimate":0,
          "relative_position":1073742823,
-         "service_desk_reply_to":null,
+         "external_author":null,
          "last_edited_at":null,
          "last_edited_by_id":null,
          "discussion_locked":null,

spec/lib/gitlab/email/handler/service_desk_handler_spec.rb

@@ -254,7 +254,7 @@ RSpec.describe Gitlab::Email::Handler::ServiceDeskHandler do
 
         new_issue = Issue.last
 
-        expect(new_issue.service_desk_reply_to).to eq('finn@adventuretime.ooo')
+        expect(new_issue.external_author).to eq('finn@adventuretime.ooo')
       end
     end
 

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -26,7 +26,7 @@ Issue:
 - weight
 - time_estimate
 - relative_position
-- service_desk_reply_to
+- external_author
 - last_edited_at
 - last_edited_by_id
 - discussion_locked

spec/mailers/notify_spec.rb

@@ -1284,7 +1284,7 @@ RSpec.describe Notify do
 
     context 'for service desk issues' do
       before do
-        issue.update!(service_desk_reply_to: 'service.desk@example.com')
+        issue.update!(external_author: 'service.desk@example.com')
       end
 
       def expect_sender(username)

spec/services/notification_service_spec.rb

@@ -353,7 +353,7 @@ RSpec.describe NotificationService, :mailer do
 
         context 'a service-desk issue' do
           before do
-            issue.update!(service_desk_reply_to: 'service.desk@example.com')
+            issue.update!(external_author: 'service.desk@example.com')
             project.update!(service_desk_enabled: true)
           end