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mastodon/db/migrate/20240304090449_migrate_interaction_settings_to_policy.rb

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# frozen_string_literal: true
class MigrateInteractionSettingsToPolicy < ActiveRecord::Migration[7.1]
disable_ddl_transaction!
# Dummy classes, to make migration possible across version changes
class User < ApplicationRecord
belongs_to :notification_policy, foreign_key: 'account_id', primary_key: 'account_id', optional: true, inverse_of: false
end
class NotificationPolicy < ApplicationRecord; end
def up
User.includes(:notification_policy).in_batches do |users|
NotificationPolicy.upsert_all(users.filter_map { |user| policy_for_user(user) })
end
end
def down; end
private
def policy_for_user(user)
deserialized_settings = Oj.load(user.attributes_before_type_cast['settings'])
return if deserialized_settings.nil?
requires_new_policy = false
policy = {
account_id: user.account_id,
filter_not_followers: false,
filter_not_following: false,
filter_private_mentions: true,
}
if deserialized_settings['interactions.must_be_follower']
policy[:filter_not_followers] = true
requires_new_policy = true
end
if deserialized_settings['interactions.must_be_following']
policy[:filter_not_following] = true
requires_new_policy = true
end
unless deserialized_settings['interactions.must_be_following_dm']
policy[:filter_private_mentions] = false
requires_new_policy = true
end
policy if requires_new_policy
end
end