如何使用 Cloudinary direct 正确更新或销毁图像？

Posted 2023-03-25

【中文标题】如何使用 Cloudinary direct 正确更新或销毁图像？

【英文标题】：How to properly update or destroy an image using Cloudinary direct?

【发布时间】：2013-08-08 02:20:11

【问题描述】：

所以我有 Cloudinary 通过载波直接上传图像并正确关联它们，但是一旦它们被创建，我似乎无法更新或销毁它们。

更新时，图像已上传并可以通过我的仪表板使用，但相关记录永远不会改变，我总是看到原始图像。

尝试销毁图像时，我收到错误消息：Couldn't find Image with ID=1 for Finish with ID=11 其中Finish 是父模型并且图像字段是嵌套的。此外，Image 模式是多态的。我不确定为什么当隐藏的输入为 20 时它认为图像 id 为“1”。

任何想法我做错了什么？

这是生成的表格（如果有任何其他有用的代码可以发布，请告诉我）：

<form accept-charset="UTF-8" action="/finishes/11" class="edit_finish" enctype="multipart/form-data" id="edit_finish_11" method="post">
  <div style="margin:0;padding:0;display:inline">
    <input name="utf8" value="✓" type="hidden">
    <input name="_method" value="put" type="hidden">
    <input name="authenticity_token" value="xxx=" type="hidden">
  </div>
  <fieldset id="finishes">
    <legend>
      Finish
    </legend>
    <div class="active">
      <div class="field">
        <label for="finish_title">Title</label>
        <input id="finish_title" name="finish[title]" size="30" value="Eggshell White" type="text">
      </div>
      <div class="singular-addable" id="finish-image-92807">
        <div class="addable-group images">
          <div class="image-field-group">
            <div class="field">
              <label for="finish_image_attributes_0_asset">Image</label>
              <input class="cloudinary-fileupload" data-cloudinary-field="finish[image_attributes][0][asset]" data-form-data="'timestamp':1375824622,'callback':'http://localhost:8080/cloudinary_cors.html','signature':'xxx','api_key':'xxx'" data-url="https://api.cloudinary.com/v1_1/hmnxgsjti/auto/upload" name="file" type="file">
            </div>
            <div class="image-box">
              <img  src="http://res.cloudinary.com/hmnxgsjti/image/upload/t_hint/v1375727159/owybb0xaxdlhgfyvwtwx.jpg">
            </div>
            <div class="remove-fields">
              <input class="destroy" id="finish_image_attributes_0__destroy" name="finish[image_attributes][0][_destroy]" value="false" type="hidden"><a href="#" class="remove"><i class="icon-remove-circle icon-large" title="Remove"></i></a>
            </div>
          </div>
          <input id="finish_image_attributes_0_id" name="finish[image_attributes][0][id]" value="20" type="hidden">
        </div>
      </div>
    </div>
  </fieldset>
  <div class="actions">
    <input name="commit" value="Save" type="submit">
  </div>
</form>

编辑：请求更多代码

image_uploader.rb

class ImageUploader < CarrierWave::Uploader::Base
  include Cloudinary::CarrierWave

  def extension_white_list
    %w(jpg jpeg gif png)
  end
end

image.rb

class Image < ActiveRecord::Base
  default_scope order('images.id ASC')

  attr_accessible               :asset,
                                :asset_cache

  belongs_to                    :imageable, polymorphic: true

  mount_uploader                :asset, ImageUploader
end

finish.rb

class Finish < ActiveRecord::Base
  default_scope order('finishes.title ASC')
  attr_accessible               :name,
                                :title,

                                ## belongs_to ##

                                ## has_many ##
                                :sku_ids,
                                :compilation_ids,

                                ## nested attributes ##
                                :image_attributes


  has_many                      :skus
  has_many                      :compilations

  has_many                      :image, as: :imageable, :dependent => :destroy
  accepts_nested_attributes_for :image, reject_if: proc  |attrs| attrs['asset'].blank? && attrs['asset_cache'].blank? , allow_destroy: true

  validates_presence_of         :image
  validates_presence_of         :title

  before_save                   :create_name

  def self.skus(finish_id = :id)
    @skus = Sku.where(:finish_id => finish_id)
    return @skus
  end

  private

  def create_name
    self.name = title.parameterize
  end
end

finishes_controller.rb

class FinishesController < ApplicationController
  # Ajax Routes
  def skus
    @skus = Finish.skus(params[:id])
    render "skus/_list", locals:  type: params[:type] , layout: false
  end

  # REST Routes
  def index
    @finishes = Finish.all

    respond_to do |format|
      format.html
      format.json  render json: @finishes 
    end
  end

  def show
    @product_ids = Product.skus_by_finish(params[:id]).map|sku| sku.product_id
    @products = Product.where(:id => @product_ids).order(:name)

    render "layouts/templates/list"
  end

  def new
    @finish = Finish.new

    @finish.image.build

    respond_to do |format|
      format.html 
      format.json  render json: @finish 
    end
  end

  def edit
    @finish = Finish.find(params[:id])
  end

  def create
    @finish = Finish.new(params[:finish])

    respond_to do |format|
      if @finish.save
        format.html  redirect_to finishes_path, notice: 'Finish was successfully created.' 
        format.json  render json: finishes_url, status: :created, location: @finish 
      else
        format.html  render action: "new" 
        format.json  render json: @finish.errors, status: :unprocessable_entity 
      end
    end
  end

  def update
    @finish = Finish.find(params[:id])

    respond_to do |format|
      if @finish.update_attributes(params[:finish])
        format.html  redirect_to finishes_url, notice: 'Finish was successfully updated.' 
        format.json  head :no_content 
      else
        format.html  render action: "edit" 
        format.json  render json: @finish.errors, status: :unprocessable_entity 
      end
    end
  end

  def destroy
    @finish = Finish.find(params[:id])
    @finish.destroy

    respond_to do |format|
      format.html  redirect_to finishes_url 
      format.json  head :no_content 
    end
  end
end

【参考方案1】：

结果证明这根本不是 Cloudinary 问题。

1) 图像没有更新，因为我的 images_controller 中没有 update 或 destroy 方法（doh！）

2) 我收到了Couldn't find Image with ID=1 for Finish with ID=11 错误，因为我的 JS 标记了要删除的隐藏文件配置错误并更改了所有隐藏字段的值。虽然我不知道为什么它以前可以工作，因为它没有改变。