162 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			162 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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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              :bigint(8)        not null, primary key
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| #  activity_id     :bigint(8)        not null
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| #  activity_type   :string           not null
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| #  created_at      :datetime         not null
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| #  updated_at      :datetime         not null
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| #  account_id      :bigint(8)        not null
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| #  from_account_id :bigint(8)        not null
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| #  type            :string
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| #
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| 
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| class Notification < ApplicationRecord
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|   self.inheritance_column = nil
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| 
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|   include Paginable
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| 
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|   LEGACY_TYPE_CLASS_MAP = {
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|     'Mention' => :mention,
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|     'Status' => :reblog,
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|     'Follow' => :follow,
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|     'FollowRequest' => :follow_request,
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|     'Favourite' => :favourite,
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|     'Poll' => :poll,
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|   }.freeze
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| 
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|   TYPES = %i(
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|     mention
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|     status
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|     reblog
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|     follow
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|     follow_request
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|     favourite
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|     poll
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|     update
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|     admin.sign_up
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|     admin.report
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|   ).freeze
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| 
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|   TARGET_STATUS_INCLUDES_BY_TYPE = {
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|     status: :status,
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|     reblog: [status: :reblog],
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|     mention: [mention: :status],
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|     favourite: [favourite: :status],
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|     poll: [poll: :status],
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|     update: :status,
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|     'admin.report': [report: :target_account],
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|   }.freeze
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| 
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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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| 
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|   with_options foreign_key: 'activity_id', optional: true do
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|     belongs_to :mention, inverse_of: :notification
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|     belongs_to :status, inverse_of: :notification
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|     belongs_to :follow, inverse_of: :notification
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|     belongs_to :follow_request, inverse_of: :notification
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|     belongs_to :favourite, inverse_of: :notification
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|     belongs_to :poll, inverse_of: false
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|     belongs_to :report, inverse_of: false
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|   end
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| 
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|   validates :type, inclusion: { in: TYPES }
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| 
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|   scope :without_suspended, -> { joins(:from_account).merge(Account.without_suspended) }
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| 
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|   def type
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|     @type ||= (super || LEGACY_TYPE_CLASS_MAP[activity_type]).to_sym
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|   end
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| 
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|   def target_status
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|     case type
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|     when :status, :update
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|       status
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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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|     when :poll
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|       poll&.status
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|     end
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|   end
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| 
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|   class << self
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|     def browserable(types: [], exclude_types: [], from_account_id: nil)
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|       requested_types = if types.empty?
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|                           TYPES
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|                         else
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|                           types.map(&:to_sym) & TYPES
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|                         end
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| 
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|       requested_types -= exclude_types.map(&:to_sym)
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| 
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|       all.tap do |scope|
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|         scope.merge!(where(from_account_id: from_account_id)) if from_account_id.present?
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|         scope.merge!(where(type: requested_types)) unless requested_types.size == TYPES.size
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|       end
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|     end
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| 
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|     def preload_cache_collection_target_statuses(notifications, &_block)
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|       notifications.group_by(&:type).each do |type, grouped_notifications|
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|         associations = TARGET_STATUS_INCLUDES_BY_TYPE[type]
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|         next unless associations
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| 
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|         # Instead of using the usual `includes`, manually preload each type.
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|         # If polymorphic associations are loaded with the usual `includes`, other types of associations will be loaded more.
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|         ActiveRecord::Associations::Preloader.new(records: grouped_notifications, associations: associations)
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|       end
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| 
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|       unique_target_statuses = notifications.filter_map(&:target_status).uniq
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|       # Call cache_collection in block
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|       cached_statuses_by_id = yield(unique_target_statuses).index_by(&:id)
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| 
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|       notifications.each do |notification|
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|         next if notification.target_status.nil?
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| 
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|         cached_status = cached_statuses_by_id[notification.target_status.id]
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| 
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|         case notification.type
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|         when :status, :update
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|           notification.status = cached_status
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|         when :reblog
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|           notification.status.reblog = cached_status
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|         when :favourite
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|           notification.favourite.status = cached_status
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|         when :mention
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|           notification.mention.status = cached_status
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|         when :poll
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|           notification.poll.status = cached_status
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|         end
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|       end
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| 
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|       notifications
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|     end
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|   end
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| 
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|   after_initialize :set_from_account
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|   before_validation :set_from_account
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| 
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|   private
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| 
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|   def set_from_account
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|     return unless new_record?
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| 
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|     case activity_type
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|     when 'Status', 'Follow', 'Favourite', 'FollowRequest', 'Poll', 'Report'
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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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|     when 'Account'
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|       self.from_account_id = activity&.id
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|     end
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|   end
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| end
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