Class | Sequel::MigrationDSL |
In: |
lib/sequel/extensions/migration.rb
|
Parent: | BasicObject |
Internal class used by the Sequel.migration DSL, part of the migration extension.
migration | [R] | The underlying Migration instance |
# File lib/sequel/extensions/migration.rb, line 109 109: def self.create(&block) 110: new(&block).migration 111: end
Creates a reversible migration. This is the same as creating the same block with up, but it also calls the block and attempts to create a down block that will reverse the changes made by the block.
There are no guarantees that this will work perfectly in all cases, but it should work for most common cases.
# File lib/sequel/extensions/migration.rb, line 147 147: def change(&block) 148: migration.up = block 149: migration.down = MigrationReverser.new.reverse(&block) 150: end
Disable the use of transactions for the related migration
# File lib/sequel/extensions/migration.rb, line 126 126: def no_transaction 127: migration.use_transactions = false 128: end
Enable the use of transactions for the related migration
# File lib/sequel/extensions/migration.rb, line 131 131: def transaction 132: migration.use_transactions = true 133: end