Project tree names

project_tree_names.rb

#view
#<h3>Project Tree: <%=  project_nested_tree_name(issue.project) %></h3>

# helper
def project_nested_tree_name(project)
  if project.parent
    nested_parent_names(project).flatten.join(" > ")
  else
    ""
  end.html_safe
end

private

def nested_parent_names(project)
  result = [project.name]
  result << nested_parent_names(project.parent) if project.parent
  result
end