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我正在尝试为测试目的手动构建表单域。我有以下型号:如何使用accept_nested_attributes_for手动构建正确的嵌套窗体?
class Bedroom < ActiveRecord::Base
has_many :booked_bedrooms
has_many :bookings, :through => :booked_bedrooms
end
class Booking < ActiveRecord::Base
has_many :booked_bedrooms
has_many :bedrooms, :through => :booked_bedrooms
accepts_nested_attributes_for :booked_bedrooms
end
class BookedBedroom < ActiveRecord::Base
belongs_to :booking
belongs_to :bedroom
# fields: bedroom_id, :booking_id
end
当我尝试在控制台下面,登记,相关booked_bedroom获取保存:
>> b = Booking.new({ :booked_bedrooms_attributes => { 0 => { :bedroom_id => 1 } } })
=> #<Booking id: nil, start_date: nil, end_date: nil, created_at: nil, updated_at: nil>
>> b.save
=> true
>> b.booked_bedrooms
=> [#<BookedBedroom id: 1, booking_id: 1, bedroom_id: 1, created_at: "2010-06-22 18:55:57", updated_at: "2010-06-22 18:55:57">]
所以我建立这样一种形式:
<% form_for @booking do |form| %>
<% for bedroom in @available_bedrooms %>
<%= check_box_tag "booked_bedrooms_attributes[#{bedroom.id}][bedroom_id]", bedroom.id %> <%= bedroom.name %>
as
<%= select_tag "booked_bedrooms_attributes[#{bedroom.id}][booking_type_id]", options_for_select(bedroom.booking_types.map {|p| [p.name, p.id]}) %>
<% end %>
<% end %>
但这不行。预订得到保存,但没有新的预订卧室记录。有人能告诉我什么是错的吗?
我知道我可以使用formtastic或一些fields_for,但我想解决硬编码形式的问题,用于演示目的。
咄,初学者的错误..谢谢;) – pduersteler 2010-06-23 10:06:53