怎样才能把两个变数带进视野 我是Ruby的新人
将两个或两个以上值引入视野的语法是什么 。
<%= form_for(@user) do |f| %>
编辑:
<%= form_for(@user) do |f| %>
prohibited this user from being saved: </h2>
<u1>
<% @user.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</u1>
</div>
<% end %>
<%= debug @user %>
<div class = "field">
<%= f.label :email %><br/>
<%= f.text_field :email %>
</div>
比如说,在上述代码中,我想打印两个对象的值并提交它们。我该怎么做呢?
我认为你需要使用两种模式, 一种形式, 这样铁路就能产生关于使用嵌套模型的好插曲。
您可以使用 < engerated_ attribittes_ for 来进行调查。 因为调查是一个模型, 问题是另一个模型, 您可以在调查中使用问题作为嵌套_ attribtes, 同样您也可以在调查模型中使用相同形式的回答模型。
更多信息,请访问InfoFinland上的
I hope this will help you.
Thanks.
如果您需要使用两个变量, 我认为最好使用两个不同的表格, 因为它们无关。 如果两个变量彼此有关系, 您应该使用 < code> acceptis_ nested_ attriptes_ for 和 < code> fields_ for 来工作 。
http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#method-i-fields_for
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