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DBIx::Class::Migration::Script::Help::downgrade(3) User Contributed Perl Documentation DBIx::Class::Migration::Script::Help::downgrade(3)

DBIx::Class::Migration::Script::Help::downgrade - Downgrade your existing database

    dbic-migration downgrade --schema_class MyApp::Schema --to_version 2

Run downgrade files to either bring the database into sync with the current schema version, or stop at an intermediate version specified via "to_version"

This command accepts the following options. You may learn more about each option by typing "dbic-migration help OPTION". The following is a summary.

Optional.

Adds the listed paths to @INC. Handy during development when you want to use a development schema class.

aliases:V, Optional

This is the target version of the database we are installing. The version named must be have been previously prepared. If not specified, we will use the current "Schema" class version.

Accepts Str. Required.

This is the schema we use as the basis for creating, managing and running your deployments. This should be the full package namespace defining your subclass of DBIx::Class::Schema. For example "MyApp::Schema".

If the "schema_class" cannot be loaded, a hard exception will be thrown.

Optional.

When using a "sandbox_class" for generating developer level database sandboxes, you may wish to place the sandbox in a directory other than the default (which is under the "share" directory off the project root).

Aliases: T, sb

Accepts: String (default: SqliteSandbox)

The class we use to create a developer level database sandbox.

You can change this to either 'PostgresqlSandbox' or 'MySQLSandbox', which will create a sandbox using either DBIx::Class::Migration::MySQLSandbox or DBIx::Class::Migration::PostgresqlSandbox.

Aliases: U

Aliases: P

Connection information to an already created and running instance of a database. If you don't specify this, we will assume you want a developer level sandbox ( See "sandbox_class" in DBIx::Class::Migration::Script).

Accepts: String to a Perl Class. Defaults to DBIx::Class::Fixtures

Lets you specify a fixture class.

Accepts: HashRef. Optional

Allows you to pass custom arguments to DBIx::Class::Fixtures.

Accepts: HashRef, Optional

Lets you send custom attributes at "connect" time to either DBIx::Class or the underlying DBI and your storage "DBD".

DBIx::Class::Migration, DBIx::Class::Migration::Script, DBIx::Class::Migration::Features, DBIx::Class::Migration::Tutorial

See DBIx::Class::Migration for author information

See DBIx::Class::Migration for copyright and license information
2020-06-02 perl v5.32.1

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