Now that Drupal 7 is upon us, I would like to explain the resources available to convert existing 6.x modules to 7.x. I will summarize the major changes in the API, and where to get further information. I will also present the coder upgrade module which eases this process. Finally I will present a brief example of how to apply this process in an existing module.

1. Converting modules from 6.x to 7.x João Ventura (jcnventura) [email_address]

3. Using Drupal since 2004

4. 1 patch in Drupal 7 core :)

5. 100% drupal developer for >1yr now

6. Now working at Trellon

8. Stella for inviting me to propose a session

11. 19 + 8 + 8 + 20 + 10 + 7 + 22 + 25 + 41 + 24 + 15 + 15 + 6 + 13 + 5 + 1 – 5 = 234 API changes

12. Database API - Select // Drupal 6 $result = db_query("SELECT nid, title FROM {node} WHERE uid = %d AND type = '%s'", 5, 'page'); // Drupal 7 $result = db_query("SELECT nid, title FROM {node} WHERE uid = :uid AND type = :type", array( ':uid' => 5, ':type' => 'page', ));

13. Database API – Results // Drupal 6 while ($record = db_fetch_object($result)) { // Do stuff with $record, which is an object } // Drupal 7 foreach ($result as $record) { // Do stuff with $record, which is an object }

14. Database API - Insert // Drupal 6 db_query("INSERT INTO {mytable} (intvar, stringvar, floatvar) VALUES (%d, '%s', %f)", 5, 'hello world', 3.14); $id = db_last_insert_id(); // Drupal 7 $id = db_insert('mytable') ->fields(array( 'intvar' => 5, 'stringvar' => 'hello world', 'floatvar' => 3.14, )) ->execute();

15. Database API - Update // Drupal 6 db_query("UPDATE {node} SET title='%s', status=%d WHERE uid=%d", 'hello world', 1, 5); // Drupal 7 db_update('node') ->fields(array('title' => 'hello world', 'status' => 1)) ->condition('uid', 5) ->execute();

16. Database API - Delete // Drupal 6 db_query(&quot;DELETE FROM {node} WHERE uid=%d AND created < %d&quot;, 5, REQUEST_TIME - 3600); // Drupal 7 db_delete('node') ->condition('uid', 5) ->condition('created', REQUEST_TIME - 3600, '<') ->execute();

18. hook_node_insert(),

19. hook_node_load(),

20. hook_node_prepare(),

21. hook_node_prepare_translation(),

22. hook_node_search_result(),

23. hook_node_presave(),

24. hook_node_update(),

25. hook_node_update_index(),

26. hook_node_validate(), and

27. hook_node_view().

28. hook_nodeapi -> hook_node_* // Drupal 6 function book_nodeapi(&$node, $op, $teaser, $page) { switch ($op) { case 'load': // Load a book. } } // Drupal 7 function book_node_load($nodes, $types) { // Load a book. }

29. The bad news + another 232 API changes

31. It's a sub-module of the coder module.

32. Requires the grammar_parser module.

33. It can either do a review of the code and provide a list of required changes or;

34. It can automatically apply those changes

38. ( http://drupal.org/update/modules/6/7 )

40. http://drupal.org/project/modules?text=d7cx