Question

我有一个form_for，其中包含了派对和访客模型的fields_for（派对有很多访客，接受来宾的嵌套属性），并且访客属于派对。我有一个form_for我的Party模型，列出了聚会中每位客人的某些字段。我的表单工作得很好，但我只想在表单中列出每个客人的名字，所以它出现：

"Bob"
   attending: yes || no
   meal choice: chicken || veggie || pasta

"Susie"
  attending: yes || no
  meal choice: chicken || veggie || pasta

现在，我所拥有的只是：

attending: yes || no
meal choice: chicken || veggie || pasta

attending: yes || no
meal choice: chicken || veggie || pasta

如何为fields_for的每次迭代列出guest.first_name？显然，我的guests_form.first_name不起作用。

我的表单代码是：

你们队伍中的人：

<%= form_for @party do |f| %>

  <%= f.hidden_field :party_id, value: current_party.id %>
  <%= f.fields_for @guests do |guests_form| %>

  <%= guests_form.first_name %>
        <%= guests_form.label :attending, "attending?" %>
        <%= guests_form.radio_button :attending, true, :checked => true %>
        <%= guests_form.label :attending, "yes!", :value => true %>
        <%= guests_form.radio_button :attending, false, :checked => false %>
        <%= guests_form.label :attending, "no", :value => false %>

        <%=guests_form.label :meal_id, "meal choice" %>
        <%=guests_form.radio_button :meal_id, :checked => 1 %>
        <%= guests_form.label :meal_id, "chicken", :value => 1 %>
        <%=guests_form.radio_button :meal_id, :checked => 2 %>
        <%= guests_form.label :meal_id, "veggie", :value => 2 %>
        <%=guests_form.radio_button  :meal_id, :checked => 3 %>
        <%= guests_form.label :meal_id, "pasta", :value => 3 %>
    <%end%>

 <%= f.submit "submit", class: 'btn btn-primary btn-lg' %>

<%end%>

我之前从未使用过fields_for，所以任何帮助都会非常感激!!

Answer 1

你在使用Devise吗？如果是，那么：

<% if user_signed_in? %>
  <p>Hello <%= current_user.first_name %>, let us know your preferences:      </p>
<%form_for @party do...
...
...

  <% end %>
<% end %>

您需要在隐藏字段中捕获user_id，以便将其与选择一起保存。我会考虑使用收藏品中的复选框或单选按钮。

在Rails表单的fields_for中列出属性

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1 个答案: