<% if User.current.logged? && (User.current.admin? || (!Member.where('user_id = ? and course_id = ?', User.current.id, @course.id).first.nil? && (Member.where('user_id = ? and course_id = ?', User.current.id, @course.id).first.roles&Role.where(id: [3, 4, 7, 9] )).size >0))%> <%= link_to(l(:label_course_homework_new), {:controller => 'courses', :action => 'new_homework'}, :class => 'icon icon-add') %> <% end %>