app/views/projects/_breadcrumbs.html.haml
%ol.breadcrumb
%li.breadcrumb-item
= link_to Project.to_s.pluralize, projects_path
- if @project and @project.lab
%li.breadcrumb-item
= link_to @project.lab, "/projects/lab/#{@project.lab.slug}"
- if @project
%li.breadcrumb-item
= link_to @project.title, project_path(@project)