Add Media::Obj

lib/whaleback/media/obj.rb

+# == Schema Information
+#
+# Table name: media_objs
+#
+#  id                :integer          not null, primary key
+#  file_file_name    :string(255)
+#  file_content_type :string(255)
+#  file_file_size    :integer
+#  file_updated_at   :datetime
+#  type              :string(255)
+#  creator_type      :string(255)
+#  creator_id        :integer
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#
+# Indexes
+#
+#  index_media_objs_on_creator_type_and_creator_id  (creator_type,creator_id)
+#
+
+module Whaleback
+  module Media
+    class Obj < ApplicationRecord
+      belongs_to :creator, polymorphic: true, optional: true
+      has_many :attachments
+
+      has_attached_file :file
+      validates_attachment_presence :file
+
+      before_destroy :stop_destroying, unless: :useless
+
+      TypeTrans = {
+        ''         => 'Media::Obj',
+        'image'    => 'Media::Image',
+        'document' => 'Media::Document',
+        'video'    => 'Media::Video',
+        'voice'    => 'Media::Voice',
+      }
+      
+      attr_accessor :default_mode
+      
+      def url mode=nil
+        ActionController::Base.helpers.asset_url(
+          mode || default_mode ? file.url(mode) : file
+        )
+      end
+
+      def name
+        file_file_name
+      end
+
+      def size
+        file_file_size
+      end
+
+      def media_type
+        TypeTrans.invert[type]
+      end
+
+      def media_type= val
+        self.type = TypeTrans[val]
+      end
+      
+      def useless
+        attachments.empty?
+      end
+
+      def stop_destroying
+        raise Whaleback::Errors::BaseError.new('This media obj being used.', -1, 400)
+      end
+      
+      require_relative 'obj/document'
+      require_relative 'obj/image'
+      require_relative 'obj/video'
+      require_relative 'obj/voice'
+    end
+  end
+end

lib/whaleback/media/obj/document.rb

+# == Schema Information
+#
+# Table name: media_objs
+#
+#  id                :integer          not null, primary key
+#  file_file_name    :string(255)
+#  file_content_type :string(255)
+#  file_file_size    :integer
+#  file_updated_at   :datetime
+#  type              :string(255)
+#  creator_type      :string(255)
+#  creator_id        :integer
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#
+# Indexes
+#
+#  index_media_objs_on_creator_type_and_creator_id  (creator_type,creator_id)
+#
+module Whaleback
+  module Media
+    class Obj
+      class Document < Obj
+        validates_attachment_size :file, less_than: 500.megabytes
+        validates_attachment_content_type :file, 
+          content_type: [
+            "application/pdf",
+            "application/vnd.ms-excel",
+            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+            "application/msword",
+            "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+            "application/vnd.ms-powerpoint",
+            "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+            "text/plain", 
+            "application/zip", 
+            "application/json"
+          ]
+      end
+    end
+  end
+end

lib/whaleback/media/obj/image.rb

+# == Schema Information
+#
+# Table name: media_objs
+#
+#  id                :integer          not null, primary key
+#  file_file_name    :string(255)
+#  file_content_type :string(255)
+#  file_file_size    :integer
+#  file_updated_at   :datetime
+#  type              :string(255)
+#  creator_type      :string(255)
+#  creator_id        :integer
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#
+# Indexes
+#
+#  index_media_objs_on_creator_type_and_creator_id  (creator_type,creator_id)
+#
+module Whaleback
+  module Media
+    class Obj
+      class Image < Obj
+        has_attached_file :file, styles: {
+          thumb: ["32x32#", :png],
+          medium: '300x300>', 
+          product: '600x600>'
+        }
+        validates_attachment_size :file, less_than: 5.megabytes
+        validates_attachment_content_type :file, content_type: /image\/.*\Z/
+
+        def default_mode
+          :original
+        end
+      end
+    end
+  end
+end

lib/whaleback/media/obj/video.rb

+# == Schema Information
+#
+# Table name: media_objs
+#
+#  id                :integer          not null, primary key
+#  file_file_name    :string(255)
+#  file_content_type :string(255)
+#  file_file_size    :integer
+#  file_updated_at   :datetime
+#  type              :string(255)
+#  creator_type      :string(255)
+#  creator_id        :integer
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#
+# Indexes
+#
+#  index_media_objs_on_creator_type_and_creator_id  (creator_type,creator_id)
+#
+module Whaleback
+  module Media
+    class Obj
+      class Video < Obj
+        has_attached_file :file,
+          styles: { thumb: ["400x400#", :png] }, 
+          processors: [:transcoder]
+        validates_attachment_size :file, less_than: 1024.megabytes
+        validates_attachment_content_type :file, content_type: /^video\/.*$/  
+      end
+    end
+  end
+end

lib/whaleback/media/obj/voice.rb

+# == Schema Information
+#
+# Table name: media_objs
+#
+#  id                :integer          not null, primary key
+#  file_file_name    :string(255)
+#  file_content_type :string(255)
+#  file_file_size    :integer
+#  file_updated_at   :datetime
+#  type              :string(255)
+#  creator_type      :string(255)
+#  creator_id        :integer
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#
+# Indexes
+#
+#  index_media_objs_on_creator_type_and_creator_id  (creator_type,creator_id)
+#
+module Whaleback
+  module Media
+    class Obj
+      class Voice < Obj
+        # has_attached_file :file
+        validates_attachment_size :file, less_than: 1024.megabytes
+        validates_attachment_content_type :file, content_type: /^audio\/.*$/  
+      end
+    end
+  end
+end