ruby-on-rails – 向Spree结帐过程添加一个步骤

我正在为Spree 1.2商店添加一个额外的步骤,这将允许客户创建一个订阅.我已插入步骤,并呈现正确的视图,但是当用户单击“保存并继续”时,下一步将被渲染,但实际上没有保存任何内容.

我明白我需要添加一个state_callback,但是我不知道如何做到这一点,Spree文档很少缺少这个(大概是因为它是新的)

目前我的扩展程序中有以下内容：

车型/大礼包/ order_decorator.rb

Spree::Order.class_eval do
  belongs_to :subscription

  accepts_nested_attributes_for :subscription

  # This doesn't appear to be called
  Spree::Order.state_machine.after_transition :from => :subscription,:do => :valid_subs?

  checkout_flow do
    go_to_state :address
    go_to_state :subscription
    go_to_state :payment,:if => lambda { |order| order.payment_required? }
    go_to_state :confirm,:if => lambda { |order| order.confirmation_required? }
    go_to_state :complete
    remove_transition :from => :delivery,:to => :confirm
  end
end

不完全确定accept_nested_attributes是必要的,但是我的开发方法是迄今为止的尝试和错误,所以它最终停留在那里.

在models / subscription.rb

class Subscription < ActiveRecord::Base

  attr_accessible :start_date,:frequency

  belongs_to :user 
  has_many :orders
  has_many :products

  validates :start_date,:frequency,:presence => true

  def schedule
    ...code that returns a list of dates rendered on FE...
  end

  private #----

  ... some methods used in schedule ...

  def valid_subs?
    binding.pry # never called
  end

  def after_subscription
    binding.pry # never called either...
  end
end

视图/礼包/结帐/ _subscription.html.erb

<h1><%= t(:"subscription.title") %></h1>

<div class="columns alpha six" data-hook="subscription_calendar_fieldset_wrapper">
  <fieldset id="subscription_calendar" data-hook>
    <%= form.fields_for :subscription_picker do |subscription_picker| %>
      <legend><%= t(:"subscription.first_delivery") %></legend>
      <%= render :partial => 'subscription/picker' %>
    <% end %>
  </fieldset>
</div>

<div class="columns omega six" data-hook="subscription_dates_fieldset_wrapper">
  <fieldset id="subscription_dates" data-hook>
    <legend align="center"><%= t(:"subscription.next_deliveries") %></legend>
    <div class='dates'></div>
  </fieldset>
</div>

<div class="form-buttons" data-hook="buttons" style='clear:both;'>
  <%= submit_tag t(:save_and_continue),:class => 'continue button primary' %>
</div>

意见/订阅/ _picker.html.erb

<div class='row'>
  <label for="subscription_frequency">Occurs every:</label>
  <% frequency_options = [["2 Weeks",14],["3 Weeks",21],["Month",30],["2 Months",60],["3 Months",90]] %>
  <%= select(:subscription,options_for_select(frequency_options,30),{}) %>
</div>
<div id="start-date-picker" class="calendar"></div>
<%= hidden_field(:subscription,:start_date,{value: (DateTime.now + 14).to_date.iso8601}) %>

... JS that creates the calendar ...

点击“保存并继续”,我看到发送的以下参数：

{
                  "utf8" => "?","_method" => "put","authenticity_token" => "...BLAH...","subscription" => {
         "frequency" => "30","start_date" => "2012-11-17"
    },"commit" => "Save and Continue","controller" => "spree/checkout","action" => "update","state" => "subscription"
}

Spree::Order.state_machine.after_transition :from => :subscription,:do => :valid_subs?

"order" => {    
    "subscription" => {
        "frequency" => "30","start_date" => "2012-11-17"
    }
}

<%= subscription_picker.select(:frequency,{}) %>

<%= subscription_picker.hidden_field(:start_date,{value: (DateTime.now + 14).to_date.iso8601}) %>