ruby-on-rails - 以简单形式过滤选择

Question

我的表单中有此代码：

guidances/new.html.erb

<%= f.association :employee_department, as: :select %>
<%= f.input :guidance_supervisor do %>
  <%= f.select :guidance_supervisor, 
  Employee.where('guidance_supervisor' => true).map(&:full_name) %>
<% end %>

and when selecting a department I need to make the employees who belongs to that department appears, I'm using simple_form , what is the way to make this happen ?

Answer 1

为此，您可以使用动态下拉概念。您可以在 rails 中查看动态下拉的以下帖子： Rails 中的
动态下拉。