mastodon-glitch/app/models/instance.rb

85 lines
2.2 KiB
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: instances
#
# domain :string primary key
# accounts_count :bigint(8)
#
class Instance < ApplicationRecord
self.primary_key = :domain
attr_accessor :failure_days
with_options foreign_key: :domain, primary_key: :domain, inverse_of: false do
belongs_to :domain_block
belongs_to :domain_allow
belongs_to :unavailable_domain
has_many :accounts, dependent: nil
end
scope :searchable, -> { where.not(domain: DomainBlock.select(:domain)) }
scope :matches_domain, ->(value) { where(arel_table[:domain].matches("%#{value}%")) }
scope :domain_starts_with, ->(value) { where(arel_table[:domain].matches("#{sanitize_sql_like(value)}%", false, true)) }
scope :by_domain_and_subdomains, ->(domain) { where("reverse('.' || domain) LIKE reverse(?)", "%.#{domain}") }
scope :with_domain_follows, ->(domains) { where(domain: domains).where(domain_account_follows) }
def self.refresh
Scenic.database.refresh_materialized_view(table_name, concurrently: true, cascade: false)
end
def self.domain_account_follows
Arel.sql(
<<~SQL.squish
EXISTS (
SELECT 1
FROM follows
JOIN accounts ON follows.account_id = accounts.id OR follows.target_account_id = accounts.id
WHERE accounts.domain = instances.domain
)
SQL
)
end
def readonly?
true
end
def delivery_failure_tracker
@delivery_failure_tracker ||= DeliveryFailureTracker.new(domain)
end
def purgeable?
unavailable? || domain_block&.suspend?
end
def unavailable?
unavailable_domain.present?
end
def failing?
failure_days.present? || unavailable?
end
def to_param
domain
end
alias to_log_human_identifier to_param
delegate :exhausted_deliveries_days, to: :delivery_failure_tracker
def availability_over_days(num_days, end_date = Time.now.utc.to_date)
failures_map = exhausted_deliveries_days.index_with { true }
period_end_at = exhausted_deliveries_days.last || end_date
period_start_at = period_end_at - num_days.days
(period_start_at..period_end_at).map do |date|
[date, failures_map[date]]
end
end
end