如何使用simple_fields_for创建相同嵌套类型的许多对象

Question

我的模型中有以下内容:

company.rb

 has_many :merits
 accepts_nested_attributes_for  :merits

在我的控制器中:

def new
   @company = Company.new
   @company.merits.build
 end

在我的表格上:

= simple_form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f|

  = f.simple_fields_for :merits do |m|
    = m.input :description, :required => false
    = m.input :picture, :required => false

这会产生如下哈希:

..."merits_attributes"=>{"0"=>{"description"=>"stove", "picture"=>"www.it.com/stove.png"}}...

我想要的是多个对象如下:

..."merits_attributes"=> {"0"=> {"description"=>"炉灶","图片"=>"www.it.com/stove.png"},"1"=>​​ {"cription "=>"冰箱","图片"=>"www.it.com/fridge.png"}} ...

我可以这样做,我该怎么做呢？如果在控制器中它会创建多个对象使用:

def create
 @company = Company.new(params[:company])
      if @company.save
        sign_in @company
        redirect_to root_path
      else
        render :new

end

Answer 1

如果您想merits在表单上使用多个,只需在控制器中构建相同数量的优点:

def new
  @company = Company.new
  3.times { @company.merits.build } # will build 3 merits
end