1 files changed, 18 insertions, 0 deletions
diff --git a/app/helpers/wiki_helper.rb b/app/helpers/wiki_helper.rb
index 815fab9e061..41f9eedd4bd 100644
--- a/app/helpers/wiki_helper.rb
+++ b/app/helpers/wiki_helper.rb
@@ -21,4 +21,22 @@ module WikiHelper
         add_to_breadcrumb_dropdown link_to(WikiPage.unhyphenize(dir_or_page).capitalize, project_wiki_path(@project, current_slug)), location: :after
       end
   end
+
+  def wiki_page_errors(error)
+    return unless error
+
+    content_tag(:div, class: 'alert alert-danger') do
+      case error
+      when WikiPage::PageChangedError
+        page_link = link_to s_("WikiPageConflictMessage|the page"), project_wiki_path(@project, @page), target: "_blank"
+        concat(
+          (s_("WikiPageConflictMessage|Someone edited the page the same time you did. Please check out %{page_link} and make sure your changes will not unintentionally remove theirs.") % { page_link: page_link }).html_safe
+        )
+      when WikiPage::PageRenameError
+        s_("WikiEdit|There is already a page with the same title in that path.")
+      else
+        error.message
+      end
+    end
+  end
 end