RefineryCMS - 上传时使用Dragonfly进行多重调整的自定义图像引擎 - 尝试将uid提交到数据库时出现MassAssign错误

时间：2013-02-24 05:35:14

标签： ruby-on-rails database refinerycms dragonfly-gem

我从无价的资源堆栈流中学到了很多东西。我非常感谢所做出的许多出色贡献。万岁开源和那些真正的开源！

对于此处已有的所有重要信息，我无法在此处找到解决问题的正确方法。让我解释一下。

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“Portfolios”。 '投资组合'has_many'：展览'。 '：展览'belongs_to'：投资组合'，如下所示。

模型属性：img_orginal - 包含用于Dragonfly图像上传的uid。这应该工作，图像上传uid被提交到数据库，并可以按预期调用到views / portfolio / show.html.erb视图。该网站旨在响应。如果它要响应，它需要一套由原始生成的调整大小的拇指。这些需要在以下情况下由Dragonfly生成：img_original上传并通过后端表单提交。到目前为止，我无法使用展品模型中的Dragonfly image_accessor来实现这一目标。我在创建尝试时收到了followin异常。

无法批量分配受保护的属性：img_original ActiveModel :: MassAssignmentSecurity :: Refinery中的错误:: Portfolios :: Admin :: ExhibitsController #crera

两个数据库都存在，并通过'展览'模型中的'：portfolio_id'外键正确链接。根据当前的rails最佳实践，所有模型属性都列入白名单。

我错过了什么？控制器方法不对我假设，我无法弄清楚它们应该如何。是否有必要修改引擎控制器来调用Page Image类或Dragonfly本身？我是否需要更改routes.rb。有人可以建议我如何定义Controller的创建和更新方法。它是否必要，因为它们应该已经由主炼油厂app的page_images控制器定义。

我已尝试使用image_accessor在Dragonfly文档中建议的方法无济于事。以下是迄今采取的一些方法。

即。 

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.

我对此非常陌生，到目前为止，我一直坚持不懈地研究实现它。然而我来到这里却无法破解它。我将不胜感激。谢谢。

下面的代码示例和环境信息。

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

通过这些迁移生成的Portfolio Engine 

 # 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展览     模块炼油厂     模块组合     class Portfolio＆lt;炼油厂::核心:: 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”; belongs_to portfolio 

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

Controller'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

1 个答案:

答案 0 :(得分：0)

我猜你自从10个月前问过以后就不再关心这个了，但是在你的展览模型中你试过改变

attr_accessible :img_original_uid

到

attr_accessible :img_original

错误来自img_original字段，但您可以访问img_original_uid。我也是蜻蜓的新手......

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