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 110 110: def self.create(&block) 111: new(&block).migration 112: 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 148 148: def change(&block) 149: migration.up = block 150: migration.down = MigrationReverser.new.reverse(&block) 151: end
Disable the use of transactions for the related migration
# File lib/sequel/extensions/migration.rb, line 127 127: def no_transaction 128: migration.use_transactions = false 129: end
Enable the use of transactions for the related migration
# File lib/sequel/extensions/migration.rb, line 132 132: def transaction 133: migration.use_transactions = true 134: end