data migration to drupal using the migrate module

Data Migration with Drupal using Migrate

Drupal を使ったデータ移行について

Data Migration with Drupal using Migrate, Drupalcamp Kyoto.12th April 2014 - Luc Bézier, @Luukyb

Drupalcamp Kyoto, Japan

https://www.flickr.com/photos/lifes26/4509331619/

Who am I

Data Migration with Drupal using Migrate, Drupalcamp Kyoto.Luc Bézier, @Luukyb

Who am I

Freelance web, exclusively Drupal projects since ~ 4 years.

I moved to Cebu City, Philippines ~ 1 year.

Twitter @Luukybluc@webizat.com

Luukyb on drupal.org

Who am I

Contributed to several large data migrationto drupal using migrate module.

Oracle to drupal :BBC Good Food

UK public sector organisation

http://www.flickr.com/photos/larahsphotography/2795859728/

1. Introduction to data migration2. Understanding the migrate module

3. Organise your Data migration with Migrate4. Migrate in Drupal 8

Data migration

https://www.flickr.com/photos/usace_albuquerque/5547589951/

Data migration

Moving data from A to B

(and often, in the middle you transform the data.)

Data migration

Simple migration?Feeds module

Data mapping using UI.drupal.org/project/feeds

Data migration

Use migrate module for a complex migration.

Complex source or destination.

Data migration

https://www.flickr.com/photos/kieranlane/6635502419/

Data migration

Using the migrate module can require code, coffee

and patience.

https://www.flickr.com/photos/kieranlane/6635502419/

Data migration

Good news:Migrate module is very flexible, powerful and well documented.

Introduction to Migrate module

http://www.flickr.com/photos/zigazou76/9104028602

Drupal module

Install and enable like any other contrib module

drupal.org/project/migrate

Created by Mike Ryan.drupal.org/user/4420

Senior Technical Consultantat Acquia

“framework for migrating content into Drupal from other

sources”

What’s inside ?- OOP Architecture

- An API- Some drush commands

- Migrate UI

Built-in support of core items (Nodes, Users, Files, Taxonomy

and comments)

Built-in support for PDO, XML, CSV, JSON, and native MSSQL

and Oracle API sources

You can extend all sources, destinations.

Migration:- 100% native drupal

- iterative

Related modules:- Drupal-to-Drupal data migration (migrate_d2d)

- WordPress Migrate- TYPO3_migrate

Understanding Migrate module

Your migration classes extends the

abstract class Migration

Your source.

$this->source = new MigrateSourceSQL($query);

Your destination.

$this->destination = new MigrateDestinationNode(’article');

Your mapping.

$this->addFieldMapping('field_summary', 'summary');

Transform your data.

$this->addFieldMapping('field_summary', 'summary’)

->callbacks(array($this, ’summaryFormat'));

Extra transformation and processing can be done using

methods like:function prepareRow($row)

Some cool features !Source dependency definition.

$this->addFieldMapping('field_image', ’imagepath') ->sourceMigration(’MediaImages');

Easy to rollback the data.When you run a migration,

migrate module stores the keys.

If you import into a contributed module: 2 cases.

First case, my contrib module does not support migrate.

Example: Media module.

Migrating content for the media module requires migrate_extras.

Migrate extras module implements extra support.

drupal.org/project/migrate_extras

Module maintainers are now recommended to implement

migration directly in the modules.

So second case, my contrib module implements migrate.

Example: field collection.

Comes with a file dedicated to migrate:

field_collection.migrate.inc

Use drush !

Limit the number of items to import,Rollback the data,

Audit your migration, …

Organise your Data migration

Study the source data,keep track of the changes.

Use a separate migration environment.

Use a script to build this environment from scratch.

Install your site with a profile$ drush si profileMigrate the data

$ drush mi MyMigration

Migrate to D8

https://www.flickr.com/photos/michaeljohn/306759922/

Migrate to D8

Drupal 8 will integrate a Migration API to migrate your site from

Drupal 6 and Drupal 7 to Drupal 8.

Migrate to D8

This API will be based on migrate module.(currently still in progress)

Migrate to D8

Migration API in D8:drupal.org/node/2127611

Migration modules list :drupal.org/documentation/migrate

Questions?

Coming camps in PHL

Drupalcamp Manila : 26th April

Drupalcamp Cebu : October 2014 (TBC)

Thank you !

ありがとうluc@webizat.com

@luukyb

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