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require Rails.root.join('lib', 'mastodon', 'migration_helpers')
class IdsToBigints < ActiveRecord::Migration[5.1]
include Mastodon::MigrationHelpers
disable_ddl_transaction!
def migrate_columns(to_type)
included_columns = [
[:account_domain_blocks, :account_id],
[:account_domain_blocks, :id],
[:accounts, :id],
[:blocks, :account_id],
[:blocks, :id],
[:blocks, :target_account_id],
[:conversation_mutes, :account_id],
[:conversation_mutes, :id],
[:domain_blocks, :id],
[:favourites, :account_id],
[:favourites, :id],
[:favourites, :status_id],
[:follow_requests, :account_id],
[:follow_requests, :id],
[:follow_requests, :target_account_id],
[:follows, :account_id],
[:follows, :id],
[:follows, :target_account_id],
[:imports, :account_id],
[:imports, :id],
[:media_attachments, :account_id],
[:media_attachments, :id],
[:mentions, :account_id],
[:mentions, :id],
[:mutes, :account_id],
[:mutes, :id],
[:mutes, :target_account_id],
[:notifications, :account_id],
[:notifications, :from_account_id],
[:notifications, :id],
[:oauth_access_grants, :application_id],
[:oauth_access_grants, :id],
[:oauth_access_grants, :resource_owner_id],
[:oauth_access_tokens, :application_id],
[:oauth_access_tokens, :id],
[:oauth_access_tokens, :resource_owner_id],
[:oauth_applications, :id],
[:oauth_applications, :owner_id],
[:reports, :account_id],
[:reports, :action_taken_by_account_id],
[:reports, :id],
[:reports, :target_account_id],
[:session_activations, :access_token_id],
[:session_activations, :user_id],
[:session_activations, :web_push_subscription_id],
[:settings, :id],
[:settings, :thing_id],
[:statuses, :account_id],
[:statuses, :application_id],
[:statuses, :in_reply_to_account_id],
[:stream_entries, :account_id],
[:stream_entries, :id],
[:subscriptions, :account_id],
[:subscriptions, :id],
[:tags, :id],
[:users, :account_id],
[:users, :id],
[:web_settings, :id],
[:web_settings, :user_id],
]
included_columns << [:deprecated_preview_cards, :id] if table_exists?(:deprecated_preview_cards)
# Print out a warning that this will probably take a while.
if $stdout.isatty
say ''
say 'WARNING: This migration may take a *long* time for large instances'
say 'It will *not* lock tables for any significant time, but it may run'
say 'for a very long time. We will pause for 10 seconds to allow you to'
say 'interrupt this migration if you are not ready.'
say ''
say 'This migration has some sections that can be safely interrupted'
say 'and restarted later, and will tell you when those are occurring.'
say ''
say 'For more information, see https://github.com/mastodon/mastodon/pull/5088'
10.downto(1) do |i|
say "Continuing in #{i} second#{i == 1 ? '' : 's'}...", true
sleep 1
end
end
tables = included_columns.map(&:first).uniq
table_sizes = {}
# Sort tables by their size
tables.each do |table|
table_sizes[table] = estimate_rows_in_table(table)
end
ordered_columns = included_columns.sort_by do |col_parts|
[-table_sizes[col_parts.first], col_parts.last]
end
ordered_columns.each do |column_parts|
table, column = column_parts
# Skip this if we're resuming and already did this one.
next if column_for(table, column).sql_type == to_type.to_s
change_column_type_concurrently table, column, to_type
cleanup_concurrent_column_type_change table, column
end
end
def up
migrate_columns(:bigint)
end
def down
migrate_columns(:integer)
end
end
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