如何在Rails表单提交后在参数中追加数组？

<%= form_for @model do |f| %>
  <%= f.fields_for :array_field, [] do |ff| %>
    <%= ff.text_field :name %>
  <% end %>
  <%= f.submit "Submit" %>
<% end %>

def model_params
  params.require(:model).permit(array_field: [:name])
end

class Model < ApplicationRecord
  serialize :array_field, Array
end