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# frozen_string_literal: true
# == Schema Information
#
# Table name: notifications
#
# id :bigint(8) not null, primary key
# activity_id :bigint(8) not null
# activity_type :string not null
# created_at :datetime not null
# updated_at :datetime not null
# account_id :bigint(8) not null
# from_account_id :bigint(8) not null
#
class Notification < ApplicationRecord
include Paginable
include Cacheable
TYPE_CLASS_MAP = {
mention: 'Mention',
reblog: 'Status',
follow: 'Follow',
follow_request: 'FollowRequest',
favourite: 'Favourite',
}.freeze
STATUS_INCLUDES = [:account, :application, :media_attachments, :tags, active_mentions: :account, reblog: [:account, :application, :media_attachments, :tags, active_mentions: :account]].freeze
belongs_to :account, optional: true
belongs_to :from_account, class_name: 'Account', optional: true
belongs_to :activity, polymorphic: true, optional: true
belongs_to :mention, foreign_type: 'Mention', foreign_key: 'activity_id', optional: true
belongs_to :status, foreign_type: 'Status', foreign_key: 'activity_id', optional: true
belongs_to :follow, foreign_type: 'Follow', foreign_key: 'activity_id', optional: true
belongs_to :follow_request, foreign_type: 'FollowRequest', foreign_key: 'activity_id', optional: true
belongs_to :favourite, foreign_type: 'Favourite', foreign_key: 'activity_id', optional: true
validates :account_id, uniqueness: { scope: [:activity_type, :activity_id] }
validates :activity_type, inclusion: { in: TYPE_CLASS_MAP.values }
scope :browserable, ->(exclude_types = []) {
types = TYPE_CLASS_MAP.values - activity_types_from_types(exclude_types + [:follow_request])
where(activity_type: types)
}
cache_associated :from_account, status: STATUS_INCLUDES, mention: [status: STATUS_INCLUDES], favourite: [:account, status: STATUS_INCLUDES], follow: :account
def type
@type ||= TYPE_CLASS_MAP.invert[activity_type].to_sym
end
def target_status
case type
when :reblog
status&.reblog
when :favourite
favourite&.status
when :mention
mention&.status
end
end
def browserable?
type != :follow_request
end
class << self
def cache_ids
select(:id, :updated_at, :activity_type, :activity_id)
end
def reload_stale_associations!(cached_items)
account_ids = (cached_items.map(&:from_account_id) + cached_items.map { |item| item.target_status&.account_id }.compact).uniq
return if account_ids.empty?
accounts = Account.where(id: account_ids).map { |a| [a.id, a] }.to_h
cached_items.each do |item|
item.from_account = accounts[item.from_account_id]
item.target_status.account = accounts[item.target_status.account_id] if item.target_status
end
end
def activity_types_from_types(types)
types.map { |type| TYPE_CLASS_MAP[type.to_sym] }.compact
end
end
after_initialize :set_from_account
before_validation :set_from_account
private
def set_from_account
return unless new_record?
case activity_type
when 'Status', 'Follow', 'Favourite', 'FollowRequest'
self.from_account_id = activity&.account_id
when 'Mention'
self.from_account_id = activity&.status&.account_id
end
end
end
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