更新 ruby on Rails 中的状态
我正在使用 AASM gem 来管理我的模型之一的状态。现在，我在 javascript 弹出窗口中使用 form_for 来更改状态，但它不起作用：
<h2>Set the state:</h2>
<%= form_for(@tracker) do |f| %>
<% if @tracker.errors.any? %>
<div id="error_explanation">
<h2>Uh-oh. We've got some problems</h2>
<% @tracker.errors.full_messages.each do |msg| %>
<%= msg %><br />
<% end %>
</div>
<% end %>
This tracker is currently: <%= @tracker.state %><br />
<%= select_tag :state, options_for_select(Tracker::STATEDESCRIPTIONS.map { |event| [event.to_s.humanize, event]}) %>
<%= f.submit %>
<% end %>
不过，我真正想做的是将表单全部包含在一个按钮中，但我不确定用什么来做到这一点？ button_to？
I'm using the AASM gem to manage states on one of my models. Right now, I'm using a form_for in a javascript popup to change the state, but it's not working:
<h2>Set the state:</h2>
<%= form_for(@tracker) do |f| %>
<% if @tracker.errors.any? %>
<div id="error_explanation">
<h2>Uh-oh. We've got some problems</h2>
<% @tracker.errors.full_messages.each do |msg| %>
<%= msg %><br />
<% end %>
</div>
<% end %>
This tracker is currently: <%= @tracker.state %><br />
<%= select_tag :state, options_for_select(Tracker::STATEDESCRIPTIONS.map { |event| [event.to_s.humanize, event]}) %>
<%= f.submit %>
<% end %>
What I'd really like to do, though, is contain the form all in a single button, but I'm not sure what to use for that? button_to?
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您应该使用
f.select而不是select_tag。这样，生成的selectHTML 标记将与form_for(@tracker)关联，并且所选状态将正确映射到@tracker> 在有问题的控制器操作中。You should use
f.selectinstead ofselect_tag. That way, the resultingselectHTML tag will be associated with theform_for(@tracker), and the chosen state will be correctly mapped to@trackerin the controller action in question.