Ruby on rails e> //=require cloudinary我所需要做的就是在cl\u image\u upload助手前面添加f.。因此，f.cl\u image\u upload:asset现在正在为我工作。 .image-field-group .field

---

e> //=require cloudinary我所需要做的就是在

cl\u image\u upload

助手前面添加

f.

。因此，

f.cl\u image\u upload:asset

现在正在为我工作。

.image-field-group
  .field
    = f.label :asset, "Image"
    = cl_image_upload :asset
    / = f.file_field :asset
    / = f.hidden_field :asset_cache

  - if f.object && f.object.asset && f.object.asset.filename
    .image-box
      = cl_image_tag(f.object.asset.filename.to_s, :transformation => 'hint', alt: f.object.asset.filename.to_s)

  .remove-fields
    = link_to_remove_fields f

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

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

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

class ImagesController < ApplicationController
  before_filter :load_imageable

  def index
    @images = @imageable.images
  end

  def new
    @image = @imageable.images.new
  end

  def create
    @image = @imageable.images.new(params[:image])
    if @image.save
      redirect_to @imageable, notice: "Image created."
    else
      render :new
    end
  end

private

  def load_imageable
    resource, id = request.path.split('/')[1, 2]
    @imageable = resource.singularize.classify.constantize.find(id)
  end
end

= form_for(:entity) do |f|
  = f.cl_image_upload(:asset)

- if f.object && f.object.asset.present?
  .image-box
    = cl_image_tag(f.object.asset, :transformation => 'hint', alt: f.object.asset.filename.to_s)