角色多选的时候权限控制

app/views/layouts/_join_exit_project.html.erb

@@ -17,7 +17,7 @@
   <% end %>
   <!--退出项目-->
   <% if (User.current.member_of? @project) && User.current.login? && !User.current.admin &&
-     Member.where(:user_id => User.current.id, :project_id => @project.id).first.roles.first.to_s != "Manager" %>
+     !Member.where(:user_id => User.current.id, :project_id => @project.id).first.roles.first.to_s.include?("Manager") %>
       <%= exit_project_link(@project) %>
   <% end %>