没有内置的方法可以做到这一点，但制作自定义turbo流动作非常容易：

// app/javascript/application.js

Turbo.StreamActions.update_input = function () {
  this.targetElements.forEach((target) => {
    target.value = this.templateContent.textContent
  });
};

# app/views/users/_form.html.erb

<%= form_with model: @user do |f| %>
  <%= f.text_field :name %>
  <%= f.submit %>
<% end %>

# app/controllers/users_controller.rb

def update
  helpers.fields model: @user do |f|
    render turbo_stream: turbo_stream.action(
     :update_input, f.field_id(:name), "new value"
    )
  end
end

• https：turbo.hotwired.dev/handbook/streams#custom-actions*

如果你需要另一个例子：
https://stackoverflow.com/a/76112894/207090