class MediaAttachment < ApplicationRecord belongs_to :account, inverse_of: :media_attachments belongs_to :status, inverse_of: :media_attachments has_attached_file :file, styles: { small: '510x680>' } validates_attachment_content_type :file, content_type: /\Aimage\/.*\z/ validates_attachment_size :file, less_than: 4.megabytes validates :account, presence: true def local? self.remote_url.blank? end def file_remote_url=(url) self.file = URI.parse(url) end end