undpaul / up-migrate
Provides some migration plugins and helpers
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Type:drupal-module
This package is auto-updated.
Last update: 2024-10-16 04:59:10 UTC
README
This project aims to give you a jump-start on building migrations.
Installation
Clone the project into modules/custom
of your Drupal installation and run
composer install
within the modules directory.
Usage
up_migrate comes with some base classes and tools useful for building migrations.
ID maps
FastSql
Since the mapping tables create by Migrate do not have proper unique indexes,
the ID map "fastsql" alters the definitions of the map tables and add proper
indexes. This increases migration performance significant.
up_migrate sets the ID map for all migrations if they do not specify the
property idMap
for themself.
Source plugins
up_migrate comes with a set of pre-defined source plugins.
SqlBase
The abstract class \Drupal\up_migrate\Plugin\migrate\source\SqlBase
is meant
to be the parent class for all custom migration sources. It allows configuring
sources from directly within a migration yml-file.
Example for definition in migrate_plus.migration.{id}.yml:
source:
table:
name: users
alias: u
ids:
uid: integer
This sets the base table of the migration source to a table named "users". The table can be referenced by using the alias "u" and have one unique key named "uid".
Example for definition in custom source plugin (must extend SqlBase
)
/**
* @MigrateSource(
* id = "upm_examples__user",
* table = {
* "name": "users",
* "alias": "u",
* "ids": {
* "uid": "integer"
* }
* }
* )
*/
For more complex ID definitions simply override the function getIds()
.
Adding additional databases as migration source
Usually you want to migrate data from one or more existing databases to your new site. To be able to reference these source databases in your migrations, simply run the following drush command
drush upm-da {key} {database name} --username={name} --password={password}
For more information about the command and its options run drush help upm-da
.
In your migration yml-file (or in your source class) set the key of the database to use
source:
key: 'database-key-from-above'
The source plugin SqlBase
will automatically switch to the new database and
fetch all data from there.
Stream wrapper
up_migrate provides a custom read-only stream wrapper to access files needed for migrations in a handy way.
To setup the correct directoy to your migration files, add the following code to your settings.php
// Set private folder.
$settings['file_migration_source_path'] = '/path/to/migration/files';