107 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: notifications
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#
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#  id              :integer          not null, primary key
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#  activity_id     :integer
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#  activity_type   :string
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#  created_at      :datetime         not null
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#  updated_at      :datetime         not null
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#  account_id      :integer
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#  from_account_id :integer
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#
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class Notification < ApplicationRecord
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  include Paginable
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  include Cacheable
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  TYPE_CLASS_MAP = {
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    mention:        'Mention',
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    reblog:         'Status',
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    follow:         'Follow',
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    follow_request: 'FollowRequest',
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    favourite:      'Favourite',
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  }.freeze
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  STATUS_INCLUDES = [:account, :application, :stream_entry, :media_attachments, :tags, mentions: :account, reblog: [:stream_entry, :account, :application, :media_attachments, :tags, mentions: :account]].freeze
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  belongs_to :account, optional: true
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  belongs_to :from_account, class_name: 'Account', optional: true
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  belongs_to :activity, polymorphic: true, optional: true
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  belongs_to :mention,        foreign_type: 'Mention',       foreign_key: 'activity_id', optional: true
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  belongs_to :status,         foreign_type: 'Status',        foreign_key: 'activity_id', optional: true
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  belongs_to :follow,         foreign_type: 'Follow',        foreign_key: 'activity_id', optional: true
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  belongs_to :follow_request, foreign_type: 'FollowRequest', foreign_key: 'activity_id', optional: true
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  belongs_to :favourite,      foreign_type: 'Favourite',     foreign_key: 'activity_id', optional: true
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  validates :account_id, uniqueness: { scope: [:activity_type, :activity_id] }
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  validates :activity_type, inclusion: { in: TYPE_CLASS_MAP.values }
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  scope :cache_ids, -> { select(:id, :updated_at, :activity_type, :activity_id) }
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  scope :browserable, ->(exclude_types = []) {
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    types = TYPE_CLASS_MAP.values - activity_types_from_types(exclude_types + [:follow_request])
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    where(activity_type: types)
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  }
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  cache_associated :from_account, status: STATUS_INCLUDES, mention: [status: STATUS_INCLUDES], favourite: [:account, status: STATUS_INCLUDES], follow: :account
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  def type
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    @type ||= TYPE_CLASS_MAP.invert[activity_type].to_sym
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  end
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  def target_status
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    case type
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    when :reblog
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      status&.reblog
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    when :favourite
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      favourite&.status
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    when :mention
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      mention&.status
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    end
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  end
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  def browserable?
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    type != :follow_request
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  end
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  class << self
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    def reload_stale_associations!(cached_items)
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      account_ids = (cached_items.map(&:from_account_id) + cached_items.map { |item| item.target_status&.account_id }.compact).uniq
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      return if account_ids.empty?
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      accounts = Account.where(id: account_ids).map { |a| [a.id, a] }.to_h
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      cached_items.each do |item|
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        item.from_account = accounts[item.from_account_id]
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        item.target_status.account = accounts[item.target_status.account_id] if item.target_status
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      end
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    end
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    private
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    def activity_types_from_types(types)
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      types.map { |type| TYPE_CLASS_MAP[type.to_sym] }.compact
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    end
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  end
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  after_initialize :set_from_account
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  before_validation :set_from_account
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  private
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  def set_from_account
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    return unless new_record?
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    case activity_type
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    when 'Status', 'Follow', 'Favourite', 'FollowRequest'
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      self.from_account_id = activity&.account_id
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    when 'Mention'
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      self.from_account_id = activity&.status&.account_id
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    end
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  end
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end
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