我可能会遗漏一些愚蠢但我无法将多个嵌入式照片文件放入表单
模型
class Product
include Mongoid::Document
embeds_many :photos, cascade_callbacks: true
end
class Photo
include Mongoid::Document
embedded_in product, :inverse_of => :photos
field :image_filename
mount_uploader :image, ImageUploader
end
Controller - products_controller.rb
def new
@product = Product.new
3.times { @product.photos.build }
end
表格
然后我用
做表格fields_for @product.photos do |photo|
<%= photo.file_field :image %>
end
问题是只有1张照片出现,但我在控制器中构建了3张照片。即使我在内存中构建3,@ product.photos.count的计数也为0。我错过了什么吗?
答案 0 :(得分:3)
fields_for @product.photos do |photo|
<%= photo.file_field :image %>
end
应该是
fields_for :photos do |photo|
<%= photo.file_field :image %>
end