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我从宝贵的资源 stackoverflow 中学到了很多东西。我非常感谢做出的许多出色贡献。开源和使其成为现实的开源万岁！

对于这里的所有重要信息，我无法在这里找到解决我的问题的正确方法。让我解释。

使用 RefineryCMS v. 2.0.9 我在 Rails 应用程序中生成了一个引擎，用于呈现“投资组合”。'投资组合' has_many ':exhibits'。':exhibit' belongs_to ':portfolio' 根据以下模型。

模型属性 :img_orginal - 包含 Dragonfly 图像上传的 uid。这可以正常工作，图像上传 uid 已提交到数据库，并且可以按预期调用到 views/portfolios/show.html.erb 视图。该网站旨在响应。如果要响应，它需要一套从原始生成的调整大小的拇指。这些需要在 :img_original 通过后端表单上传和提交时由 Dragonfly 生成。到目前为止，我无法在展览模型中使用 Dragonfly image_accessor 来实现这一点。我在创建尝试时收到以下异常。

无法批量分配受保护的属性：img_original ActiveModel::MassAssignmentSecurity::Error in Refinery::Portfolios::Admin::ExhibitsController#create

两个数据库都存在并且通过“exhibits”模型中的“:portfolio_id”外键正确链接。根据当前的 Rails 最佳实践，所有模型属性都被列入白名单。

我错过了什么？我认为控制器方法不正确，我无法弄清楚它们应该如何。是否需要修改引擎控制器以在实例中调用 Page Image 类或 Dragonfly 本身？我需要更改 routes.rb。有人可以建议我如何定义控制器的创建和更新方法。是否有必要，因为它们应该已经由主要炼油厂应用程序的 page_images 控制器定义。

我已经使用 image_accessor 尝试了 Dragonfly 文档中建议的方法，但无济于事。以下是迄今为止采取的一些方法。

IE。

image_accessor :img_original do
after_assign :crop_thumb     #method defined below
            #:resize_mobile,
            #:resize_tablet,
            #:resize_desktop
# OR
#  copy_to(:img_thumb) do
#    |a| a.thumb('100x100')
#    end
# OR different block syntax
#  copy_to(:img_thumb) do {|a| a.thumb('100x100')}
end

def crop_thumb
  @exhibit.img_thumb = @exhibit.img_original.process(:resize_and_crop,
                                                     :width => 100,
                                                     :height=> 100,
                                                     :x => :x_focus,
                                                     :y => :y_focus).encode(:jpg, '-quality 60').apply
end

#def resize_mobile,
   @exhibit.img_mobile = @exhibit.img_original.process(etc.
#end

#def resize_tablet,
   etc.

我对此很陌生，到目前为止，我一直在努力研究以实现它。然而我来到这个并且无法破解它。我将不胜感激任何人可能提供的帮助。谢谢你。

下面的代码示例和环境信息。

环境; Ubuntu 12.10 RubyMine IDE Ruby 1.9.3 RVM 处理 gems Rails 3.2.9 SQLite 开发数据库 RefineryCMS（包括 page_images 和查询插件） Dragonfly 0.9.14

使用这些迁移生成的投资组合引擎

 # This migration comes from refinery_portfolios (originally 1)
 class CreatePortfoliosPortfolios < ActiveRecord::Migration

 def up
 create_table :refinery_portfolios do |t|
  t.string :title
  t.integer :year
  t.text :description
  t.integer :publication_id
  t.integer :commentary_id
  t.integer :position
  t.timestamps
end
end

def down
if defined?(::Refinery::UserPlugin)
  ::Refinery::UserPlugin.destroy_all({:name => "refinerycms-portfolios"})
end

if defined?(::Refinery::Page)
  ::Refinery::Page.delete_all({:link_url => "/portfolios/portfolios"})
end

drop_table :refinery_portfolios
end
end

和

# This migration comes from refinery_portfolios (originally 2)
class CreatePortfoliosExhibits < ActiveRecord::Migration

def up
create_table :refinery_portfolios_exhibits do |t|
  t.string :title
  t.integer :cat_num
  t.integer :year
  t.string :medium
  t.integer :width
  t.integer :height
  t.integer :img_original_id
  t.string :img_thumb
  t.string :img_mobile
  t.string :img_tablet
  t.string :img_desktop
  t.integer :x_focus
  t.integer :y_focus
  t.text :history
  t.integer :portfolio_id
  t.boolean :sold
  t.integer :position

  t.timestamps
  end

  end

def down
 if defined?(::Refinery::UserPlugin)
  ::Refinery::UserPlugin.destroy_all({:name => "refinerycms-portfolios"})
end

if defined?(::Refinery::Page)
  ::Refinery::Page.delete_all({:link_url => "/portfolios/exhibits"})
end

drop_table :refinery_portfolios_exhibits

end

end

并且refinery_portfolios_exhibits 表列标题已更改

 Exhibits table column header changed via migration
 class FixColumnName < ActiveRecord::Migration
  def change
   rename_column :refinery_portfolios_exhibits, :img_original_id, :img_original_uid
   rename_column :refinery_portfolios_exhibits, :img_thumb, :img_thumb_uid
   rename_column :refinery_portfolios_exhibits, :img_mobile, :img_mobile_uid
   rename_column :refinery_portfolios_exhibits, :img_tablet, :img_tablet_uid
   rename_column :refinery_portfolios_exhibits, :img_desktop, :img_desktop_uid
  end
 end

投资组合模型包含投资组合元数据，称为 'portfolio.rb' has_many 展示模块 Refinery 模块 Portfolios 类 Portfolio < Refinery::Core::BaseModel self.table_name = 'refinery_portfolios'

  attr_accessible :title,
                  :year,
                  :description,
                  :publication_id,
                  :commentary_id,
                  :position

  acts_as_indexed :fields => [:title]

  validates :title, :presence => true, :uniqueness => true

  belongs_to :publication, :class_name => '::Refinery::Resource'
  belongs_to :commentary, :class_name => '::Refinery::Resource'

  # destroy all exhibits when a portfolio is destroyed
  has_many :exhibits, :dependent => :destroy

end
end
end

展览模型包含图像链接和相关元数据，称为“exhibit.rb”；属于_to 投资组合

require 'dragonfly/rails/images'

module Refinery
module Portfolios
class Exhibit < Refinery::Core::BaseModel

attr_accessible   :title,
                  :cat_num,
                  :year,
                  :medium,
                  :width,
                  :height,
                  :img_original_uid,   #image upload uid from refinery_images table
                  :img_thumb_uid,      #commit resize uid here
                  :img_mobile_uid,     #here
                  :img_tablet_uid,     #here
                  :img_desktop_uid,    #and here
                  :x_focus,
                  :y_focus,
                  :history,
                  :portfolio_id,   #foreign key, associates exhbit with portfolio
                  :sold,
                  :position

  acts_as_indexed :fields => [:title, :medium, :year, :cat_num]

  validates :title, :presence => true, :uniqueness => true
  validates :year, :length => { :is => 4,
                                :message => "Four digit year format,(yyyy) eg. 2013"}
  validates :img_original_uid, :presence => true, :uniqueness => true                             
  validates :portfolio_id, :presence => true
  validates_associated :portfolio
  validates :x_focus, :presence => true
  validates :y_focus, :presence => true
  validates :sold, :inclusion => {:in => [true, false]}

  belongs_to :img_original, :class_name => '::Refinery::Image'
  belongs_to :portfolio, :class_name => 'Portfolio', :foreign_key => 'portfolio_id'
  end
  end
  end

控制器'admin/exhibit.rb'

 module Refinery
  module Portfolios
   module Admin
    class ExhibitsController < ::Refinery::AdminController
      before_filter :find_all_portfolios

      crudify :'refinery/portfolios/exhibit', :xhr_paging => true

      protected

      def find_all_portfolios
        @portfolios = Refinery::Portfolios::Portfolio.all
      end

    end
  end
 end
end

控制器'exhibit.rb'

 module Refinery
 module Portfolios
  class ExhibitsController < ::ApplicationController

   before_filter :find_all_exhibits
   before_filter :find_page

  def index
    #@exhibits = Exhibit.all(:include => :portfolio)

    # you can use meta fields from your model instead (e.g. browser_title)
    # by swapping @page for @exhibit in the line below:
    present(@exhibit)
  end

  def show
    @exhibit = Exhibit.find(params[:id])

    # you can use meta fields from your model instead (e.g. browser_title)
    # by swapping @page for @exhibit in the line below:
    present(@exhibit)
  end


  protected

  def find_all_exhibits
    @exhibits = Exhibit.order('position ASC')
  end

  def find_page
    @page = ::Refinery::Page.where(:link_url => "/exhibits").first
  end

   end
  end
 end
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1 回答 1

0

我猜你在 10 个月前问过之后就不再关心这个了，但是在你的展览模型中，你有没有尝试过改变

attr_accessible :img_original_uid

至

attr_accessible :img_original

错误出现在 img_original 字段上，但您正在为 img_original_uid 提供可访问性。我也是蜻蜓的新手......

于 2013-12-31T14:13:59.117 回答