mastodon/app/models/notification.rb

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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
# type :string
#
class Notification < ApplicationRecord
self.inheritance_column = nil
include Paginable
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include Cacheable
LEGACY_TYPE_CLASS_MAP = {
'Mention' => :mention,
'Status' => :reblog,
'Follow' => :follow,
'FollowRequest' => :follow_request,
'Favourite' => :favourite,
'Poll' => :poll,
}.freeze
TYPES = %i(
mention
status
reblog
follow
follow_request
favourite
poll
).freeze
STATUS_INCLUDES = [:account, :application, :preloadable_poll, :media_attachments, :tags, active_mentions: :account, reblog: [:account, :application, :preloadable_poll, :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
belongs_to :poll, foreign_type: 'Poll', foreign_key: 'activity_id', optional: true
validates :type, inclusion: { in: TYPES }
scope :without_suspended, -> { joins(:from_account).merge(Account.without_suspended) }
scope :browserable, ->(exclude_types = [], account_id = nil) {
types = TYPES - exclude_types.map(&:to_sym)
if account_id.nil?
where(type: types)
else
where(type: types, from_account_id: account_id)
end
}
cache_associated :from_account, status: STATUS_INCLUDES, mention: [status: STATUS_INCLUDES], favourite: [:account, status: STATUS_INCLUDES], follow: :account, follow_request: :account, poll: [status: STATUS_INCLUDES]
def type
@type ||= (super || LEGACY_TYPE_CLASS_MAP[activity_type]).to_sym
end
def target_status
case type
when :status
status
when :reblog
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status&.reblog
when :favourite
favourite&.status
when :mention
mention&.status
when :poll
poll&.status
end
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.filter_map { |item| item.target_status&.account_id }).uniq
return if account_ids.empty?
accounts = Account.where(id: account_ids).includes(:account_stat).each_with_object({}) { |a, h| h[a.id] = a }
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
end
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after_initialize :set_from_account
before_validation :set_from_account
private
def set_from_account
return unless new_record?
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case activity_type
when 'Status', 'Follow', 'Favourite', 'FollowRequest', 'Poll'
self.from_account_id = activity&.account_id
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when 'Mention'
self.from_account_id = activity&.status&.account_id
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end
end
end