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Merge pull request #8222 from kenjis/docs-db-migration

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docs: [Migration] clarify that `$db` is for testing purposes
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kenjis 2023-11-22 09:01:31 +09:00 committed by GitHub
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2 changed files with 8 additions and 8 deletions
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11
system/Database/MigrationRunner.php
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@ -122,14 +122,11 @@ class MigrationRunner
protected $groupSkip = false;
/**
* Constructor.
* The migration can manage multiple databases. So it should always use the
* default DB group so that it creates the `migrations` table in the default
* DB group. Therefore, passing $db is for testing purposes only.
*
* When passing in $db, you may pass any of the following to connect:
* - group name
* - existing connection instance
* - array of database configuration values
*
* @param array|ConnectionInterface|string|null $db
* @param array|ConnectionInterface|string|null $db DB group. For testing purposes only.
*
* @throws ConfigException
*/

5
user_guide_src/source/dbmgmt/migration.rst
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@ -66,7 +66,7 @@ Database Groups
===============
A migration will only be run against a single database group. If you have multiple groups defined in
**app/Config/Database.php**, then it will run against the ``$defaultGroup`` as specified
**app/Config/Database.php**, then by default it will run against the ``$defaultGroup`` as specified
in that same configuration file.
There may be times when you need different schemas for different
@ -79,6 +79,9 @@ match the name of the database group exactly:
.. literalinclude:: migration/003.php
.. note:: The **migrations** table that tracks which migrations have already been
run will be always created in the default database group.
Namespaces
==========