- METHODS THAT ARE REQUIRED IN SUBCLASSES
- ORTHODOX METHODS
- COPYRIGHT AND LICENSE
DBIx::Class::DeploymentHandler::Dad - Parent class for DeploymentHandlers
These methods are not actually required as things will probably still work if you don't implement them, but if you want your subclass to get along with other subclasses (or more likely, tools made to use another subclass), you should probably implement these too, even if they are no-ops.
All of the methods mentioned in "METHODS THAT ARE REQUIRED IN SUBCLASSES" and "ORTHODOX METHODS" can be implemented in any fashion you choose. In the spirit of code reuse I have used roles to implement them in my two subclasses, DBIx::Class::DeploymentHandler and DBIx::Class::DeploymentHandler::Deprecated, but you are free to implement them entirely in a subclass if you so choose to.
For in-depth documentation on how methods are supposed to work, see the roles DBIx::Class::DeploymentHandler::HandlesDeploy, DBIx::Class::DeploymentHandler::HandlesVersioning, and DBIx::Class::DeploymentHandler::HandlesVersionStorage.
The DBIx::Class::Schema (required) that is used to talk to the database and generate the DDL.
The version that the schema is currently at. Defaults to
The directory where backups are stored
The version (defaults to schema's version) to migrate the database to
Deploys the current schema into the database. Populates
Note: you typically need to call
$dh->prepare_deploy before you call this method.
Note: you cannot install on top of an already installed database
Upgrades the database one step at a time till "next_version_set" returns
undef. Each upgrade step will add a
upgrade_sql to the version storage (if
upgrade_sql are returned from "upgrade_single_step".
Downgrades the database one step at a time till "previous_version_set" returns
undef. Each downgrade step will delete a
version from the version storage.
Simply calls backup on the
$schema->storage, passing in
$self->backup_directory as an argument. Please test yourself before assuming it will work.
Arthur Axel "fREW" Schmidt <email@example.com>
This software is copyright (c) 2011 by Arthur Axel "fREW" Schmidt.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.