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mastodon/app/lib/importer/statuses_index_importer.rb

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# frozen_string_literal: true
class Importer::StatusesIndexImporter < Importer::BaseImporter
def import!
# The idea is that instead of iterating over all statuses in the database
# and calculating the searchable_by for each of them (majority of which
# would be empty), we approach the index from the other end
scopes.each do |scope|
# We could be tempted to keep track of status IDs we have already processed
# from a different scope to avoid indexing them multiple times, but that
# could end up being a very large array
scope.reorder(nil).find_in_batches(batch_size: @batch_size) do |tmp|
in_work_unit(tmp.map(&:status_id)) do |status_ids|
deleted = 0
bulk = ActiveRecord::Base.connection_pool.with_connection do
to_index = index.adapter.default_scope.where(id: status_ids)
crutches = Chewy::Index::Crutch::Crutches.new index, to_index
to_index.map do |object|
# This is unlikely to happen, but the post may have been
# un-interacted with since it was queued for indexing
if object.searchable_by.empty?
deleted += 1
{ delete: { _id: object.id } }
else
{ index: { _id: object.id, data: index.compose(object, crutches, fields: []) } }
end
end
end
indexed = bulk.size - deleted
Chewy::Index::Import::BulkRequest.new(index).perform(bulk)
[indexed, deleted]
end
end
end
wait!
end
private
def index
StatusesIndex
end
def scopes
[
local_statuses_scope,
local_mentions_scope,
local_favourites_scope,
local_votes_scope,
local_bookmarks_scope,
]
end
def local_mentions_scope
Mention.where(account: Account.local, silent: false).select(:id, :status_id)
end
def local_favourites_scope
Favourite.where(account: Account.local).select(:id, :status_id)
end
def local_bookmarks_scope
Bookmark.select(:id, :status_id)
end
def local_votes_scope
Poll.joins(:votes).where(votes: { account: Account.local }).select('polls.id, polls.status_id')
end
def local_statuses_scope
Status.local.select('"statuses"."id", COALESCE("statuses"."reblog_of_id", "statuses"."id") AS status_id')
end
end