如何在控制器中获取 f.submit 的名称参数?

问题描述

我创建了_form.html.erb，其中的编码如下

I created _form.html.erb, in which it's coded like this

<%= form_for @book, :html => { :class => 'form-horizontal' } do |f| %>
....
    <%= f.submit nil, :class => 'btn btn-primary', :name => 'update' %>
    <%= f.submit 'Destroy', :class => 'btn btn-danger', :name => 'destroy' %>
....
<% end %>

是的，我确实以相同的形式提交了 2 个提交，并且它们都具有诸如更新"和销毁"之类的名称.

Yes, I do have 2 submits in the same form, and both of them have name such as 'update' and 'destroy'.

当用户按下销毁按钮时，books_controller 中的更新动作将被调用.
并判断它是更新"还是销毁"请求.
为此，我如何在控制器中获取其名称参数?

When the user press destroy button, update action in books_controller will be called.
and it judges whether if it's 'update' or 'destroy' request.
For that, how can I get its name parameter in controller?

更新操作将是这样的

def update

 if params[:books][:name] == 'destroy'
  destroy transaction
 else
  update transaction
 end

end 

推荐答案

试试这个，

<%= f.submit 'Update', :class => 'btn btn-primary', :name => 'submit' %>
<%= f.submit 'Destroy', :class => 'btn btn-danger', :name => 'submit' %>

现在，当您更新时，您将获得 params[:submit] 作为更新"和当您 Destroy 时，您将在控制器中将 params[:submit] 作为Destroy"

Now when you Update you will get params[:submit] as "Update" and when you Destroy you will get params[:submit] as "Destroy" in your controller

这篇关于如何在控制器中获取 f.submit 的名称参数?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！