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 104 104: def self.create(&block) 105: new(&block).migration 106: 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 142 142: def change(&block) 143: migration.up = block 144: migration.down = MigrationReverser.new.reverse(&block) 145: end
Disable the use of transactions for the related migration
# File lib/sequel/extensions/migration.rb, line 121 121: def no_transaction 122: migration.use_transactions = false 123: end
Enable the use of transactions for the related migration
# File lib/sequel/extensions/migration.rb, line 126 126: def transaction 127: migration.use_transactions = true 128: end