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Move length value mapping to constant in ids to bigints migration (#29048)
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@ -7,10 +7,7 @@ class IdsToBigints < ActiveRecord::Migration[5.1]
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include Mastodon::MigrationHelpers
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include Mastodon::MigrationWarning
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disable_ddl_transaction!
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def migrate_columns(to_type)
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included_columns = [
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TABLE_COLUMN_MAPPING = [
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[:account_domain_blocks, :account_id],
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[:account_domain_blocks, :id],
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[:accounts, :id],
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@ -70,17 +67,13 @@ class IdsToBigints < ActiveRecord::Migration[5.1]
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[:users, :id],
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[:web_settings, :id],
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[:web_settings, :user_id],
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]
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included_columns << [:deprecated_preview_cards, :id] if table_exists?(:deprecated_preview_cards)
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].freeze
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migration_duration_warning(<<~EXPLANATION)
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This migration has some sections that can be safely interrupted
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and restarted later, and will tell you when those are occurring.
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disable_ddl_transaction!
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For more information, see https://github.com/mastodon/mastodon/pull/5088
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EXPLANATION
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def migrate_columns(to_type)
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display_warning
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tables = included_columns.map(&:first).uniq
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table_sizes = {}
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# Sort tables by their size
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@ -103,6 +96,25 @@ class IdsToBigints < ActiveRecord::Migration[5.1]
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end
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end
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def display_warning
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migration_duration_warning(<<~EXPLANATION)
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This migration has some sections that can be safely interrupted
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and restarted later, and will tell you when those are occurring.
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For more information, see https://github.com/mastodon/mastodon/pull/5088
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EXPLANATION
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end
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def tables
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included_columns.map(&:first).uniq
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end
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def included_columns
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TABLE_COLUMN_MAPPING.dup.tap do |included_columns|
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included_columns << [:deprecated_preview_cards, :id] if table_exists?(:deprecated_preview_cards)
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end
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end
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def up
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migrate_columns(:bigint)
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end
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