Bring image, asset and images_helper from spree_core

app/helpers/spree/admin/images_helper.rb

@@ -0,0 +1,18 @@
+module Spree
+  module Admin
+    module ImagesHelper
+      def options_text_for(image)
+        if image.viewable.is_a?(Spree::Variant)
+          if image.viewable.is_master?
+            Spree.t(:all)
+          else
+            image.viewable.options_text
+          end
+        else
+          Spree.t(:all)
+        end
+      end
+    end
+  end
+end
+

app/models/spree/asset.rb

@@ -0,0 +1,6 @@
+module Spree
+  class Asset < ActiveRecord::Base
+    belongs_to :viewable, polymorphic: true, touch: true
+    acts_as_list scope: :viewable
+  end
+end

app/models/spree/image.rb

@@ -0,0 +1,50 @@
+module Spree
+  class Image < Asset
+    validates_attachment_presence :attachment
+    validate :no_attachment_errors
+
+    has_attached_file :attachment,
+                      styles: { mini: '48x48>', small: '100x100>', product: '240x240>', large: '600x600>' },
+                      default_style: :product,
+                      url: '/spree/products/:id/:style/:basename.:extension',
+                      path: ':rails_root/public/spree/products/:id/:style/:basename.:extension',
+                      convert_options: { all: '-strip -auto-orient -colorspace RGB' }
+
+    # save the w,h of the original image (from which others can be calculated)
+    # we need to look at the write-queue for images which have not been saved yet
+    after_post_process :find_dimensions
+
+    include Spree::Core::S3Support
+    supports_s3 :attachment
+
+    Spree::Image.attachment_definitions[:attachment][:styles] = ActiveSupport::JSON.decode(Spree::Config[:attachment_styles]).symbolize_keys!
+    Spree::Image.attachment_definitions[:attachment][:path] = Spree::Config[:attachment_path]
+    Spree::Image.attachment_definitions[:attachment][:url] = Spree::Config[:attachment_url]
+    Spree::Image.attachment_definitions[:attachment][:default_url] = Spree::Config[:attachment_default_url]
+    Spree::Image.attachment_definitions[:attachment][:default_style] = Spree::Config[:attachment_default_style]
+
+    #used by admin products autocomplete
+    def mini_url
+      attachment.url(:mini, false)
+    end
+
+    def find_dimensions
+      temporary = attachment.queued_for_write[:original]
+      filename = temporary.path unless temporary.nil?
+      filename = attachment.path if filename.blank?
+      geometry = Paperclip::Geometry.from_file(filename)
+      self.attachment_width  = geometry.width
+      self.attachment_height = geometry.height
+    end
+
+    # if there are errors from the plugin, then add a more meaningful message
+    def no_attachment_errors
+      unless attachment.errors.empty?
+        # uncomment this to get rid of the less-than-useful interrim messages
+        # errors.clear
+        errors.add :attachment, "Paperclip returned errors for file '#{attachment_file_name}' - check ImageMagick installation or image source file."
+        false
+      end
+    end
+  end
+end

spec/models/asset_spec.rb

@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe Spree::Asset do
+  describe "#viewable" do
+    it "touches association" do
+      product = create(:custom_product)
+      asset = Spree::Asset.create! { |a| a.viewable = product.master }
+
+      product.update_column(:updated_at,  1.day.ago)
+
+      expect do
+        asset.touch
+      end.to change { product.reload.updated_at }
+    end
+  end
+end

spec/models/spree/asset_spec.rb

@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe Spree::Asset do
+  describe "#viewable" do
+    it "touches association" do
+      product = create(:custom_product)
+      asset = Spree::Asset.create! { |a| a.viewable = product.master }
+
+      product.update_column(:updated_at,  1.day.ago)
+
+      expect do
+        asset.touch
+      end.to change { product.reload.updated_at }
+    end
+  end
+end