Question

我有以下课程：

class Business < AR::Base
  has_many :locations
  has_many :owned_locations, -> { owned }, class_name: 'Location'
  has_many :good_locations, -> { good }, class_name: 'Location'
  has_many :bad_locations, -> { bad }, class_name: 'Location'
  accepts_nested_attributes_for :locations, allow_destroy: true
  accepts_nested_attributes_for :owned_locations, allow_destroy: true
  accepts_nested_attributes_for :good_locations, allow_destroy: true
  accepts_nested_attributes_for :bad_locations, allow_destroy: true
end

class Location < AR::Base
  belongs_to :business
  scope :owned, -> { where(type: 'owned') }
  scope :good, -> { where(type: 'good') }
  scope :bad, -> { where(type: 'bad') }
end

基本上我尝试建立一个关联，其中locations可以分配给多个存储桶（类型），但都存储在同一个表中。我遇到了嵌套表单的问题：

= simple_form_for @business do |f|
  = f.fields_for :owned_locations, @business.owned_locations do |lf|
    # location fields

我的控制器有适当的允许参数：

params.permit(
  :business => [
    :name,
    :owned_locations_attributes => [
      # locations_attributes
    ]
  ]
)

我没有得到任何未经许可的params错误，所以我确信我已经正确设置了所有这些错误。但这些地点并没有被分配到这个行业。这些是错误：

{
  :"owned_locations.business"=>["can't be blank"], 
  :"good_locations.business"=>["can't be blank"], 
  :"bad_locations.business"=>["can't be blank"]
}

我不太了解Rails API的内部工作原理来调试它。知道我做错了吗？

Answer 1

当您使用simple_form创建嵌套表单时，需要使用simple_fields_for。

= simple_form_for @business do |f|
  = f.simple_fields_for :owned_locations, @business.owned_locations do |lf|
        # location fields

Rails scoped关联w /嵌套表单

1 个答案: