module Memo::Migration

Overview

Converts a database written by an earlier version of memo, once. The version a database is at is kept in memo_meta.

Extended Modules

• Memo::Migration

Defined in:

memo/migration.cr

Constant Summary

SCHEMA_VERSION = 1

1 (memo 0.13): each distinct text is stored once, in memo_contents, and sources and chunks point at it. Databases from before have no version.

Instance Method Summary

• #run(db : DB::Database) : Nil

  Runs in one transaction, so a failure leaves the database as it was.

• #version(db : DBHandle) : Int32

Instance Method Detail