Extracted CSV export mailer from issues mailer

app/mailers/emails/csv_export.rb

+module Emails
+  module CsvExport
+    def issues_csv_email(user, project, csv_data, export_status)
+      @project = project
+      @issues_count = export_status.fetch(:rows_expected)
+      @written_count = export_status.fetch(:rows_written)
+      @truncated = export_status.fetch(:truncated)
+
+      filename = "#{project.full_path.parameterize}_issues_#{Date.today.iso8601}.csv"
+      attachments[filename] = { content: csv_data, mime_type: 'text/csv' }
+      mail(to: user.notification_email, subject: subject("Exported issues")) do |format|
+        format.html { render layout: 'mailer' }
+        format.text { render layout: 'mailer' }
+      end
+    end
+  end
+end

app/mailers/emails/issues.rb

@@ -49,20 +49,6 @@ module Emails
       mail_answer_thread(issue, issue_thread_options(updated_by_user.id, recipient.id))
     end
 
-    def issues_csv_email(user, project, csv_data, export_status)
-      @project = project
-      @issues_count = export_status.fetch(:rows_expected)
-      @written_count = export_status.fetch(:rows_written)
-      @truncated = export_status.fetch(:truncated)
-
-      filename = "#{project.full_path.parameterize}_issues_#{Date.today.iso8601}.csv"
-      attachments[filename] = { content: csv_data, mime_type: 'text/csv' }
-      mail(to: user.notification_email, subject: subject("Exported issues"), skip_premailer: true) do |format|
-        format.html { render layout: 'mailer' }
-        format.text { render layout: 'mailer' }
-      end
-    end
-
     private
 
     def setup_issue_mail(issue_id, recipient_id)

app/mailers/notify.rb

@@ -3,6 +3,7 @@ class Notify < BaseMailer
 
   include Emails::AdminNotification
   include Emails::Issues
+  include Emails::CsvExport
   include Emails::MergeRequests
   include Emails::Notes
   include Emails::Projects