remove advertisement code

app/models/advertisement.rb

@@ -1,91 +0,0 @@
-class Advertisement < ActiveRecord::Base
-  validates_inclusion_of :ad_type, :in => %w(horizontal vertical)
-  has_many :hits, :class_name => "AdvertisementHit"
-  after_create :copy_to_servers
-  after_destroy :delete_from_servers
-  attr_accessible :ad_type, :width, :height, :referral_url, :status, :file_name, :is_work_safe, :hit_count
-
-  def copy_to_servers
-    RemoteFileManager.new(image_path).distribute
-  end
-
-  def delete_from_servers
-    RemoteFileManager.new(image_path).delete
-  end
-
-  def hit!(ip_addr)
-    hits.create(:ip_addr => ip_addr)
-  end
-
-  def hit_sum(start_date, end_date)
-    hits.where(["created_at BETWEEN ? AND ?", start_date, end_date]).count
-  end
-
-  def unique_identifier
-    @unique_identifier ||= ("%.0f" % (Time.now.to_f * 1_000))
-  end
-
-  def image_url
-    "/images/advertisements/ads-#{date_prefix}/#{file_name}"
-  end
-
-  def date_prefix
-    created_at.try(:strftime, "%Y%m%d")
-  end
-
-  def image_path
-    "#{Danbooru.config.advertisement_path}/ads-#{date_prefix}/#{file_name}"
-  end
-
-  def file
-    nil
-  end
-
-  def file=(f)
-    if f.size > 0
-      self.file_name = unique_identifier + File.extname(f.original_filename)
-      FileUtils.mkdir_p(File.dirname(image_path))
-
-      if f.local_path
-        FileUtils.cp(f.local_path, image_path)
-      else
-        File.open(image_path, 'wb') {|nf| nf.write(f.read)}
-      end
-
-      File.chmod(0644, image_path)
-      File.open(image_path, "rb") do |file|
-        image_size = ImageSpec.new(file)
-        self.width = image_size.width
-        self.height = image_size.height
-      end
-
-      if width > height
-        self.ad_type = "horizontal"
-      else
-        self.ad_type = "vertical"
-      end
-    end
-  end
-
-  def preview_width
-    if width > 100 || height > 100
-      if width < height
-        ratio = 100.0 / height
-        return (width * ratio).to_i
-      else
-        return 100
-      end
-    end
-  end
-
-  def preview_height
-    if width > 100 || height > 100
-      if height < width
-        ratio = 100.0 / width
-        return (height * ratio).to_i
-      else
-        return 100
-      end
-    end
-  end
-end

app/models/advertisement_hit.rb

@@ -1,6 +0,0 @@
-class AdvertisementHit < ActiveRecord::Base
-  belongs_to :advertisement
-
-  scope :between, lambda {|start_date, end_date| where("created_at BETWEEN ? AND ?", start_date, end_date)}
-  attr_accessible :ip_addr
-end