mastofe

custom_emoji.rb (1984B)

# frozen_string_literal: true
# == Schema Information
#
# Table name: custom_emojis
#
#  id                 :integer          not null, primary key
#  shortcode          :string           default(""), not null
#  domain             :string
#  image_file_name    :string
#  image_content_type :string
#  image_file_size    :integer
#  image_updated_at   :datetime
#  created_at         :datetime         not null
#  updated_at         :datetime         not null
#  disabled           :boolean          default(FALSE), not null
#  uri                :string
#  image_remote_url   :string
#  visible_in_picker  :boolean          default(TRUE), not null
#
class CustomEmoji < ApplicationRecord
  LIMIT = 50.kilobytes
  SHORTCODE_RE_FRAGMENT = '[a-zA-Z0-9_]{2,}'
  SCAN_RE = /(?<=[^[:alnum:]:]|\n|^)
    :(#{SHORTCODE_RE_FRAGMENT}):
    (?=[^[:alnum:]:]|$)/x
  has_one :local_counterpart, -> { where(domain: nil) }, class_name: 'CustomEmoji', primary_key: :shortcode, foreign_key: :shortcode
  has_attached_file :image, styles: { static: { format: 'png', convert_options: '-coalesce -strip' } }
  validates_attachment :image, content_type: { content_type: 'image/png' }, presence: true, size: { less_than: LIMIT }
  validates :shortcode, uniqueness: { scope: :domain }, format: { with: /\A#{SHORTCODE_RE_FRAGMENT}\z/ }, length: { minimum: 2 }
  scope :local,      -> { where(domain: nil) }
  scope :remote,     -> { where.not(domain: nil) }
  scope :alphabetic, -> { order(domain: :asc, shortcode: :asc) }
  remotable_attachment :image, LIMIT
  def local?
    domain.nil?
  end
  def object_type
    :emoji
  end
  class << self
    def from_text(text, domain)
      return [] if text.blank?
      shortcodes = text.scan(SCAN_RE).map(&:first).uniq
      return [] if shortcodes.empty?
      where(shortcode: shortcodes, domain: domain, disabled: false)
    end
    def search(shortcode)
      where('"custom_emojis"."shortcode" ILIKE ?', "%#{shortcode}%")
    end
  end
end