Question

我实际上是通过Rails指南中的设置使用示例has_many：http://guides.rubyonrails.org/association_basics.html#the-has-many-through-association

我有一个名为options的模型，另一个名为registrations。当您注册某个活动时，您可以选择多个options，并且每个选项都有自己的时间和与会者限制，这些是注册条目所特有的

我的联接表格为registrations_options，其中option_id和registration_id填充正常。但是连接表还包含名为time和attendee_limit的列。对于我的生活，我无法弄清楚如何从表格中填充它们。

我已经尝试了很多东西，但这只是本节表单代码的最后一个试用状态：

#models/registration.rb
class Registration < ApplicationRecord
  belongs_to :event
  has_many :registrations_options
  has_many :options, through: :registrations_options
...

#models/option.rb
class Option < ApplicationRecord
  belongs_to :church
  has_many :registrations_options
  has_many :registrations, through: :registrations_options
...

#registrations_controller.rb
...
def new
  @registration = Registration.new
  @registration_form = RegistrationForm.new(@registration, registrations_path)
end
...

#admin/registrations/partials/_form.html.erb
<%= form_for @registration_form do |f| %>
<%= render partial: '/admin/registrations/partials/options', locals: {options: @registration_form.options, selected_church: @registration_form.selected_church, registration: @registration_form.registration} %>
...

#admin/registrations/partials/_options.html.erb
<%= collection_check_boxes :registration, :option_ids, options, :id, :ministry_area do |b| %>
  <%= b.check_box + " " + b.label %><br/>
  <div class="field" id="additional-info-<%= b.object.id %>">
    <fieldset class="fieldset">
      <legend>Additional Information</legend>
      <div class="additional-info-container">
        <div class="field">
          <%= label_tag "What time do you want to observe the environment(s)?" %>
          <div class="radio">
            <% b.object.available_service_times.split(', ').each do |time| %>
              <%= radio_button_tag 'registrations_options[service_time][' + b.object.id.to_s + ']', time %> <%= time %><br> #this is one of the lines in question!
            <% end %>
          </div>
          <div class="field">
            <%= label_tag " How many people will be observing this environment?" %>
            <%= select_tag 'registrations_options[attendees]', options_for_select((1 .. b.object.attendee_limit).to_a) %> #this is the other line in question!
          </div>
        </div>
      </div>
    </fieldset>
  </div>
<% end %>

如何填充连接表上的其他字段（Rails 5）

0 个答案: