tootlab-mastodon/app/models/follow_recommendation.rb
Claire d9ae3db8d5
Improve performance of follow recommendation scheduler (#16159)
Express follow_recommendations in terms of account_summaries rather than
accounts, integrate filters that are unconditionally used, and materialize
the resulting view.

This should result in the bulk of the computation being performed only once
instead of **once per recommendation language**.
2021-05-05 22:04:52 +02:00

27 lines
654 B
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: follow_recommendations
#
# account_id :bigint(8) primary key
# rank :decimal(, )
# reason :text is an Array
#
class FollowRecommendation < ApplicationRecord
self.primary_key = :account_id
belongs_to :account_summary, foreign_key: :account_id
belongs_to :account, foreign_key: :account_id
scope :localized, ->(locale) { joins(:account_summary).merge(AccountSummary.localized(locale)) }
def self.refresh
Scenic.database.refresh_materialized_view(table_name, concurrently: true, cascade: false)
end
def readonly?
true
end
end