migrating a website from wordpress to drupal

This can be done in many ways:

lets see the pros n cons of few of such methods here:-

1) Using drupal\s plug-in / module

Wordpress import

This module allows us to import a Wordpress blog into Drupal from a WordPress eXtended RSS file.

Features:

• Wordpress posts are imported as nodes of type Story or Blog.
• Wordpress Pages are imported as nodes of type Page
• Only superuser(admin) can perform the import.
• New taxonomies are automatically created for Wordpress categories and tags.
  
• Comments and trackbacks are imported as Drupal comments

Known issues:

• Blogroll are not yet supported
• attachment are not yet supported

2) Using another drupal\s plug-in / module

wp2drupal

Features:

• Posts, comments, categories, pages and users are migrated. wp2drupal respects unpublished and private settings so no non-public information will be revealed to unauthorized eyes after migration.
• You can, specify node types of imported posts and pages, each imported string can be run through custom string handling function etc.
• flexible URL redirection mechanism.

Known issues:

• Well tested with drupal4.7. For 5.x its quiet complicated process.
• you will need to enable set_time_limit() function to let migration process run longer than 30 seconds.
• can't handle multi-user mega-blogs.

3) Writing few manual scripts & then using drupal plug-ins to load data

• Setup the drupal site
• Make the CCKs, categories & their dependencies mapped correctly.
• Migrate wordpress users to drupal users DB with all the user fields coming to drupal profile fields using manual PHP script.
• Generate CSVs for wordpress data (posts, pages, comments, tags, categories etc etc).
• Now load the CSV files into drupal CCKs using the node import module.

Known issues

• May need data cleansing.
• Max memory/time limits needed to be updated.
• URL aliasing/ redirection issues

Advantages:

• Wordpress posts/pages can be loaded into user chosen node/content types.
• Any user who have required admin rights can perform the migration

This might be useful for many people who are working on migration related projects.