a872392cd9
* Add entity cache Use a caching layer for mentions and custom emojis that are dynamically extracted from text. Reduce duplicate text extractions * Fix code style issue
76 lines
2.1 KiB
Ruby
76 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: custom_emojis
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#
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# id :bigint(8) not null, primary key
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# shortcode :string default(""), not null
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# domain :string
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# image_file_name :string
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# image_content_type :string
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# image_file_size :integer
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# image_updated_at :datetime
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# created_at :datetime not null
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# updated_at :datetime not null
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# disabled :boolean default(FALSE), not null
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# uri :string
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# image_remote_url :string
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# visible_in_picker :boolean default(TRUE), not null
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#
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class CustomEmoji < ApplicationRecord
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LIMIT = 50.kilobytes
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SHORTCODE_RE_FRAGMENT = '[a-zA-Z0-9_]{2,}'
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SCAN_RE = /(?<=[^[:alnum:]:]|\n|^)
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:(#{SHORTCODE_RE_FRAGMENT}):
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(?=[^[:alnum:]:]|$)/x
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has_one :local_counterpart, -> { where(domain: nil) }, class_name: 'CustomEmoji', primary_key: :shortcode, foreign_key: :shortcode
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has_attached_file :image, styles: { static: { format: 'png', convert_options: '-coalesce -strip' } }
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validates_attachment :image, content_type: { content_type: 'image/png' }, presence: true, size: { less_than: LIMIT }
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validates :shortcode, uniqueness: { scope: :domain }, format: { with: /\A#{SHORTCODE_RE_FRAGMENT}\z/ }, length: { minimum: 2 }
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scope :local, -> { where(domain: nil) }
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scope :remote, -> { where.not(domain: nil) }
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scope :alphabetic, -> { order(domain: :asc, shortcode: :asc) }
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remotable_attachment :image, LIMIT
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include Attachmentable
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after_commit :remove_entity_cache
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def local?
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domain.nil?
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end
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def object_type
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:emoji
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end
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class << self
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def from_text(text, domain)
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return [] if text.blank?
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shortcodes = text.scan(SCAN_RE).map(&:first).uniq
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return [] if shortcodes.empty?
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EntityCache.instance.emoji(shortcodes, domain)
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end
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def search(shortcode)
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where('"custom_emojis"."shortcode" ILIKE ?', "%#{shortcode}%")
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end
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end
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private
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def remove_entity_cache
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Rails.cache.delete(EntityCache.instance.to_key(:emoji, shortcode, domain))
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end
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end
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