110 lines
		
	
	
	
		
			3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			110 lines
		
	
	
	
		
			3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| require_relative '../../lib/mastodon/migration_warning'
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| 
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| class MigrateAccountConversations < ActiveRecord::Migration[5.2]
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|   include Mastodon::MigrationWarning
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| 
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|   disable_ddl_transaction!
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| 
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|   class Mention < ApplicationRecord
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|     belongs_to :account, inverse_of: :mentions
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|     belongs_to :status, -> { unscope(where: :deleted_at) }
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| 
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|     delegate(
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|       :username,
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|       :acct,
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|       to: :account,
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|       prefix: true
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|     )
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|   end
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| 
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|   class Notification < ApplicationRecord
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|     belongs_to :account, optional: true
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|     belongs_to :activity, polymorphic: true, optional: true
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| 
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|     belongs_to :status,  foreign_key: 'activity_id', optional: true
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|     belongs_to :mention, foreign_key: 'activity_id', optional: true
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| 
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|     def target_status
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|       mention&.status
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|     end
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|   end
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| 
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|   class AccountConversation < ApplicationRecord
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|     belongs_to :account
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|     belongs_to :conversation
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|     belongs_to :last_status, -> { unscope(where: :deleted_at) }, class_name: 'Status'
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| 
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|     before_validation :set_last_status
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| 
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|     class << self
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|       def add_status(recipient, status)
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|         conversation = find_or_initialize_by(account: recipient, conversation_id: status.conversation_id, participant_account_ids: participants_from_status(recipient, status))
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| 
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|         return conversation if conversation.status_ids.include?(status.id)
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| 
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|         conversation.status_ids << status.id
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|         conversation.unread = status.account_id != recipient.id
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|         conversation.save
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|         conversation
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|       rescue ActiveRecord::StaleObjectError
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|         retry
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|       end
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| 
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|       private
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| 
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|       def participants_from_status(recipient, status)
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|         ((status.active_mentions.pluck(:account_id) + [status.account_id]).uniq - [recipient.id]).sort
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|       end
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|     end
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| 
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|     private
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| 
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|     def set_last_status
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|       self.status_ids     = status_ids.sort
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|       self.last_status_id = status_ids.last
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|     end
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|   end
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| 
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|   def up
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|     migration_duration_warning
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| 
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|     migrated  = 0
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|     last_time = Time.zone.now
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| 
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|     local_direct_statuses.includes(:account, mentions: :account).find_each do |status|
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|       AccountConversation.add_status(status.account, status)
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|       migrated += 1
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| 
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|       if Time.zone.now - last_time > 1
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|         say_progress(migrated)
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|         last_time = Time.zone.now
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|       end
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|     end
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| 
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|     notifications_about_direct_statuses.includes(:account, mention: { status: [:account, mentions: :account] }).find_each do |notification|
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|       AccountConversation.add_status(notification.account, notification.target_status)
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|       migrated += 1
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| 
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|       if Time.zone.now - last_time > 1
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|         say_progress(migrated)
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|         last_time = Time.zone.now
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|       end
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|     end
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|   end
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| 
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|   def down; end
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| 
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|   private
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| 
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|   def say_progress(migrated)
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|     say "Migrated #{migrated} rows", true
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|   end
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| 
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|   def local_direct_statuses
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|     Status.unscoped.local.where(visibility: :direct)
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|   end
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| 
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|   def notifications_about_direct_statuses
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|     Notification.joins('INNER JOIN mentions ON mentions.id = notifications.activity_id INNER JOIN statuses ON statuses.id = mentions.status_id').where(activity_type: 'Mention', statuses: { visibility: :direct })
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|   end
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| end
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