Chapter 1, Preparing Drupal for Content Migration, details how to prep your Drupal website for imports of content and data from a legacy content management system or other site. Performance considerations, core Drupal modules, required contributed modules, and setup of the Feeds module and the Feeds Tamper module will all be discussed. Other modules including the Migrate module will be detailed. We will also prep our data export and get it ready to import into Drupal.

Chapter 2, Starting a Migration Path, shows how to create your content type and fields in Drupal that will contain your imported content. We'll create a new Drupal content type, build out a map of the types of fields we'll be importing, create the fields and add them to the content type in Drupal, discuss migration of files including images, set up some image handling, and add validation to our fields. We'll also create entity reference fields, term reference fields, and field collections.

Chapter 3, Creating a Feeds Importer, dives into using the Feeds module to configure our importers. We'll create a feeds importer, and look at basic settings including exporting, cloning, deleting, and tampering. We'll tweak our feeds importer settings including the fetcher, parser, and processor. We'll attach a feeds importer to a content type and also use the standalone feeds importer form. You'll learn how to create the feed importer mapping in order to map your legacy data into the Drupal fields you've created. Then you'll run the initial import and test it.

Chapter 4, Feeds Tampers, expands the configuration of our feeds importer by adding tampers to the mapping. We'll use the Feeds Tamper module, create a tamper for a few of our fields, and use the tamper for multivalue piped and/or comma-separated data. We'll create a tamper to handle character sets, and other plugins including HTML, other text, string, and lists. We'll run an import using the tamper plugin and test the import to confirm that the tamper worked.

Chapter 5, Maintaining a Migration Path, explains how to manage and maintain our migration path, using feeds, over time. We'll clone importers and re-run our imports to update and replace content.

Chapter 6, Packaging Content Types and Feeds Importers, shows you how to use the powerful Features module to save your feeds configurations to code and store them in a module(s) format. You can then share and implement these modules across other sites you manage.

Chapter 7, Migration Using the Migrate Module, jumps into a discussion and demo of the Migrate module. We'll install and use the Migrate module to migrate content from other sources into our site.

Chapter 8, Migrating Content from Earlier Drupal Versions, shows you how to export your content from a Drupal 6 site and import it to a Drupal 7 site for migration and upgrade reasons. We'll run through the basic steps of a Drupal 6 to 7 upgrade path for content migration.

Chapter 9, Migrating from WordPress, takes content and data from the popular Wordpress blog application framework and migrates this blog content into your Drupal site. We'll use a module called Wordpress Migrate in this chapter.

To run the examples in the book, you will need the following:

For this book, it is assumed that you have a working installation of Drupal 7 on either your localhost server or on a hosted server. All the examples will be run on a localhost version of Drupal running in the MAMP environment but you can also work with XAMPP, WAMP, or any of the myriad of Drupal package installers that are available. I won't be describing the Drupal install process in detail as there are many resources out there that can help you install Drupal. So it's assumed that you have core Drupal installed and are ready to go. I will explain all install processes for the modules we're going to use including the Feeds, Feeds Tamper, Migrate, and Wordpress Migrate modules.

This book is for Drupal users, website managers, webmasters, content editors, or developers who have already installed and configured a Drupal site and understand its web-based administration; and who want to import data from other sources and websites into the Drupal framework.

This book will have little in terms of programming or code. Everything we do in the book will be configured easily by using the Drupal administration interface and module admin screens. We will look at some code briefly when we set up our Feature modules. You do not need to have any previous MySQL or PHP experience to work through these examples.

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "Install this module, as you would do for any Drupal contributed module, to your /sites/all/modules/contrib directory".

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Go to your core modules admin screen and uncheck the Toolbar module to disable it".

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