1 files changed, 32 insertions, 10 deletions
diff --git a/lib/banzai/filter/user_reference_filter.rb b/lib/banzai/filter/user_reference_filter.rb
index f3356d6c51e..afb6e25963c 100644
--- a/lib/banzai/filter/user_reference_filter.rb
+++ b/lib/banzai/filter/user_reference_filter.rb
@@ -24,7 +24,7 @@ module Banzai
       end
 
       def call
-        return doc if project.nil? && !skip_project_check?
+        return doc if project.nil? && group.nil? && !skip_project_check?
 
         ref_pattern = User.reference_pattern
         ref_pattern_start = /\A#{ref_pattern}\z/
@@ -101,19 +101,12 @@ module Banzai
       end
 
       def link_to_all(link_content: nil)
-        project = context[:project]
         author = context[:author]
 
-        if author && !project.team.member?(author)
+        if author && !team_member?(author)
           link_content
         else
-          url = urls.project_url(project,
-                                           only_path: context[:only_path])
-
-          data = data_attribute(project: project.id, author: author.try(:id))
-          content = link_content || User.reference_prefix + 'all'
-
-          link_tag(url, data, content, 'All Project and Group Members')
+          parent_url(link_content, author)
         end
       end
 
@@ -144,6 +137,35 @@ module Banzai
       def link_tag(url, data, link_content, title)
         %(<a href="#{url}" #{data} class="#{link_class}" title="#{escape_once(title)}">#{link_content}</a>)
       end
+
+      def parent
+        context[:project] || context[:group]
+      end
+
+      def parent_group?
+        parent.is_a?(Group)
+      end
+
+      def team_member?(user)
+        if parent_group?
+          parent.member?(user)
+        else
+          parent.team.member?(user)
+        end
+      end
+
+      def parent_url(link_content, author)
+        if parent_group?
+          url = urls.group_url(parent, only_path: context[:only_path])
+          data = data_attribute(group: group.id, author: author.try(:id))
+        else
+          url = urls.project_url(parent, only_path: context[:only_path])
+          data = data_attribute(project: project.id, author: author.try(:id))
+        end
+
+        content = link_content || User.reference_prefix + 'all'
+        link_tag(url, data, content, 'All Project and Group Members')
+      end
     end
   end
 end