rails 3.2嵌套窗体不会调用更新时，我发送它

Question

我正在使用窗体中的另一个嵌套窗体，我想更新嵌套的元素，但它不工作...

ENV：3.2的Rails

_form.html.haml

= simple_form_for [:pim, activity] 
    ... 
    = f.simple_fields_for :pictures do |pic_form|              
    %div.media 
     .pull-left.col-md-2 
     = image_tag pic_form.object.image.mini.url 
     %div.media-body.col-md-5 
     = pic_form.input :alt 
     = pic_form.input :element_id, as: :hidden 
     = pic_form.input :element_type, as: :hidden 
     = pic_form.input :_destroy, as: :hidden 

活动具有X图片：

ACTIV ity.rb

has_many :pictures, :as => :element, :dependent => :destroy 
... 
accepts_nested_attributes_for :pictures, allow_destroy: true 

当我修改嵌套元素的输入端，服务器跟踪是：

Picture Load (0.3ms) SELECT "pictures".* FROM "pictures" WHERE "pictures"."element_id" = 13579 AND "pictures"."element_type" = 'Activity' AND "pictures"."id" IN (9839, 9840, 9838) 

但0更新中... 0错误...

你有什么想法发生了什么？我尝试了很多解决方案，但他们不工作。 谢谢。

编辑：我忘了，但在活动的的form_for它编辑两个嵌套形式和第二种形式的作品非常好.......

编辑

******************************************************************************** 
{"utf8"=>"✓", 
"_method"=>"put", 
"authenticity_token"=>"cbOJlat6uT3vIKrb2xaNXaD1osWTHL3435gALI8NDBU=", 
"activity"=>{"id"=>"13579", 
      "name"=>"dw", 
      "category_id"=>"27", 
      "address"=>"", 
      "description"=>"", 
      "description_source"=>"", 
      "details"=>"", 
      "from_price"=>"46", 
      "pictures_attributes"=> {"0"=>{"source"=>"sq", 
             "element_id"=>"13579",       
             "element_type"=>"Activity", 
             "_destroy"=>"false", 
             "id"=>"9840"}, 
            "1"=>{"source"=>"str de base", 
             "element_id"=>"13579", 
             "element_type"=>"Activity", 
             "_destroy"=>"false", 
             "id"=>"9839"}, 
            "2"=>{"source"=>"", 
             "element_id"=>"13579", 
             "element_type"=>"Activity", 
             "_destroy"=>"false", 
             "id"=>"9838"}}, 
      "csv_id"=>"italy", 
      "options_attributes"=> {"0"=>{"name"=>"a", 
             "description"=>"", 
             "code_pre"=>"", 
             "code_type"=>"", 
             "activity_id"=>"13579", 
             "_destroy"=>"false", 
             "id"=>"38"}} 
      }, 
"commit"=>"Save", 
"action"=>"update", 
"controller"=>"pim/activities", 
"locale"=>"fr", 
"id"=>"13579"} 
(print generate by `pr params`) 
******************************************************************************** 

Activity Load (0.3ms) SELECT "activities".* FROM "activities" WHERE "activities"."id" = $1 LIMIT 1 [["id", "13579"]] 
(0.2ms) BEGIN 
Picture Load (0.3ms) SELECT "pictures".* FROM "pictures" WHERE "pictures"."element_id" = 13579 AND "pictures"."element_type" = 'Activity' AND "pictures"."id" IN (9840, 9839, 9838) 
Option Load (0.2ms) SELECT "options".* FROM "options" WHERE "options"."activity_id" = 13579 AND "options"."id" IN (38) 
(0.3ms) UPDATE "activities" SET "ids" = '"csv_id"=>"italy-5" "updated_at" = '2014-04-28 15:23:16.962313' WHERE "activities"."id" = 13579 
(0.1ms) UPDATE "options" SET "ids" = '"code_pre"=>"","code_type"=>""', "updated_at" = '2014-04-28 15:23:16.963988' WHERE "options"."id" = 38 
(3.7ms) COMMIT 
Redirected to http://localhost:3000/fr/pim/activities/13579/edit 

源“ sq“这是一个新的字符串

"pictures_attributes"=> {"0"=>{"source"=>"sq", 

source”str de base“它是bdd中的值

"1"=>{"source"=>"str de base", 

activities_controller.rb

def update 
     pr params, decorator: '*'                    
     @activity = Activity.find(params[:id]) 
     params[:activity].delete(:id) 
     if @activity.update_attributes(params[:activity]) 
     redirect_to edit_pim_activity_path(@activity), flash: { success: I18n.t("pim.activities.saved") } 
     else 
     render :new, error: I18n.t("pim.activities.error") 
     end 
    end 

picture.rb

class Picture < ActiveRecord::Base 
    require 'carrierwave/orm/activerecord' 
    include Rails.application.routes.url_helpers 

    IMAGE_SIZES = { 
    mini: [100, 100] 
    } 
    mount_uploader :image, PictureUploader 

    belongs_to :element, :polymorphic => true 

    belongs_to :point, foreign_key: :element_id, foreign_type: 'Point' 

    after_save :element_changed 

    def element_changed 
    if !self.element_type.nil? && self.element_type_changed? 
     self.image.recreate_versions! 
    end 
    end 

    def to_jq_read 
    { 
     "tall" => image.tall.url, 
    } 
    end 

    def to_jq_upload 
    { 
     "id" => id, 
     "name" => read_attribute(:image), 
     "size" => image.size, 
     "url" => image.url, 
     "tiny" => image.tiny.url, 
    "small" => image.small.url, 
    "tall" => image.tall.url, 
     "delete_url" => admin_picture_path(:id => id), 
     "delete_type" => "DELETE" 
    } 
    end 

    def featured_big_url 
    self.image.featured_big.url 
    end 

    def featured_small_url 
    self.image.featured_small.url 
    end 
    def self.remove_by_params(pictures) 
    pictures.each do |pic| 
     picture = Picture.find(pic.second[:id]) 
     picture.destroy 
    end 
    end 

    def self.destroy_by_ids(ids) 
    ids.each do |id| 
     if picture = Picture.find(id) 
     picture.destroy 
     end 
    end 
    end 

end 

Answer 1

您是否允许pictures_attributes的质量分配做：

attr_accessible :pictures_attributes 

欲了解更多信息：http://apidock.com/rails/ActiveModel/MassAssignmentSecurity/ClassMethods/attr_accessible