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"
}
解决方法
你有两个问题.您的回调未触发,因为对checkout_flow的调用会清除当前状态机并将其替换.在调用checkout_flow之后将此代码移动到：
Spree::Order.state_machine.after_transition :from => :subscription,:do => :valid_subs?
其次,您的订阅信息不保存,因为参数需要作为订单的一部分传递. params应该像这样嵌套：
"order" => {
"subscription" => {
"frequency" => "30","start_date" => "2012-11-17"
}
}
您可以通过将您的来电select和hidden_field附加到适当的表单“subscription_picker”来实现：
<%= subscription_picker.select(:frequency,{}) %>
和
<%= subscription_picker.hidden_field(:start_date,{value: (DateTime.now + 14).to_date.iso8601}) %>
您应该将表单对象传递给您的部分,作为样式和可理解性的显式参数.
干杯.