Move issuable_app_data to helper

app/helpers/issuables_helper.rb

 module IssuablesHelper
   include GitlabRoutingHelper
+  include EditableHelper
 
   def sidebar_gutter_toggle_icon
     sidebar_gutter_collapsed? ? icon('angle-double-left', { 'aria-hidden': 'true' }) : icon('angle-double-right', { 'aria-hidden': 'true' })
@@ -273,4 +274,11 @@ module IssuablesHelper
       container: (is_collapsed ? 'body' : nil)
     }
   end
+
+  def issuable_app_data(project, issue)
+    data = { "endpoint" => realtime_changes_namespace_project_issue_path(project.namespace, project, issue), "can-update" => can?(current_user, :update_issue, issue).to_s, "issuable-ref" => issue.to_reference }
+    updated_at_by = updated_at_by(issue)
+
+    data.merge(updated_at_by) if updated_at_by.present?
+  end
 end

app/views/projects/issues/show.html.haml

@@ -55,10 +55,7 @@
 
 .issue-details.issuable-details
   .detail-page-description.content-block
-    - issuable_app_data = { "endpoint" => realtime_changes_namespace_project_issue_path(@project.namespace, @project, @issue), "can-update" => can?(current_user, :update_issue, @issue).to_s, "issuable-ref" => @issue.to_reference }
-    - updated_at_by = updated_at_by(@issue)
-    - issuable_app_data.merge(updated_at_by) if updated_at_by.present?
-    #js-issuable-app{ data: issuable_app_data }
+    #js-issuable-app{ data: issuable_app_data(@project, @issue) }
       %h2.title= markdown_field(@issue, :title)
       - if @issue.description.present?
         .description{ class: can?(current_user, :update_issue, @issue) ? 'js-task-list-container' : '' }