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https://github.com/funamitech/mastodon
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18 lines
582 B
Ruby
18 lines
582 B
Ruby
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class AccountIdsToTimestampIds < ActiveRecord::Migration[5.1]
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def up
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# Set up the accounts.id column to use our timestamp-based IDs.
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safety_assured do
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execute("ALTER TABLE accounts ALTER COLUMN id SET DEFAULT timestamp_id('accounts')")
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end
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# Make sure we have a sequence to use.
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Mastodon::Snowflake.ensure_id_sequences_exist
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end
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def down
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execute("LOCK accounts")
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execute("SELECT setval('accounts_id_seq', (SELECT MAX(id) FROM accounts))")
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execute("ALTER TABLE accounts ALTER COLUMN id SET DEFAULT nextval('accounts_id_seq')")
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end
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end
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