class Screenshot < ActiveRecord::Base belongs_to :package, :inverse_of=>:screenshots default_scope { order('uploaddatetime DESC') } has_attached_file :image, styles: { :large => '800x600>', :thumb => '160x120>' }, default_url: '/images/dummy/no-screenshots-available.svg', path: ':rails_root/public/screenshots/:id_partition/:style.png', url: '/screenshots/:id_partition/:style.png' validates_attachment_content_type :image, :content_type => 'image/png' validates_with AttachmentSizeValidator, :attributes => :image, :less_than => 5.megabytes validate :validate_image_is_unique # Validator that checks if the image has already been uploaded. # A generic uniqueness validator does not work because it would attribute # the error to the :image_fingerprint field and not the actual :image field. def validate_image_is_unique # Look for images with the same checksum / image_fingerprint if Screenshot.find_by(image_fingerprint: image_fingerprint) errors.add(:image, "has already been uploaded") end end # Return caption for full-screen screenshots. # Takes the description of a screenshot if available. # Otherwise it falls back to the general description of its package. def caption if self.description != '' self.description else self.package.description end end def uploader # TODO: Implement the ownership of images 'Anonymous' end # Return Debshots 1.x path to allow migration of images into Paperclip filesystem schema def image_url(size) "#{Rails.configuration.images_path_prefix}/#{self.package.name[0]}/#{self.package.name}/#{self.id}_#{size}.png" end def status text = 'This image ' if self.approved text << 'is public' else text << 'has to be moderated before being publicly visible' end if self.markedfordelete text << ' (and was requested to be removed)' end return text end end