Drupal 7 development: first impressions

Drupal 7 development: first impressions
Dennis Povshedny, madcap.nl

Minor stuff
Like different *.info files format (dependencies[])

API somewhere changed
As well as for D5 to D6 migration
Versions
4.6 hook_form(&$node, &$param)
4.7 hook_form(&$node)
5 hook_form(&$node, $form_values)
6 hook_form(&$node, $form_state)
7 hook_form($node, $form_state)

Registry introduced
Two tables in DB to hold all registered functions
kind of OOP based on procedural platform
Rebuild registry regularly with clearing cache, like: - call drupal_flush_all_caches() - truncate all cache_* tables

DB is now object oriented, baby!
No more good old db_query;
Use PDO (PHP Data Objects) instead;
Looks like a hell at a first sight

D6 way
$entry = db_query('SELECT parent_nid FROM {ts_activity_hierarchy} WHERE ts_activity_hierarchy.nid = ' . $nid);

D7 way
$query = db_select('ts_activity_hierarchy'); $query->addField('ts_activity_hierarchy', 'parent_nid' ); $query->condition('ts_activity_hierarchy.nid', $nid); $result = $query->execute(); $entry = db_fetch_object($result);

Translate, please!
$num_revoked = db_delete('ts_activity_users') ->condition('activity_nid', $nid) ->condition('uid', $userid, 'IN') ->execute();
db_query('DELETE FROM {ts_activity_users} WHERE activity_nid=' . $nid . ' AND uid IN (' . implode(',', $userid) . ')');

DB: guard pattern
{ $guard = db_transaction(); ... }

Beautiful doc for deal with DB hell
http://drupal.kollm.org/doxygen/drupal-phpdoc/class_select_query.html

How stable is UNSTABLE?
Now we use UNSTABLE 9 even node_ tables has changed recently
Shall I start or wait?

Other good practices
Write Doxygen - style comments;
Enjoy pure PHP5 cause PHP4 is no longer supported – feel free to use 'clone', etc
...

Thank you!
Questions and ideas – welcome!
Drupal 7 – just try it! :)

Drupal 7 development: first impressions

by Drupal Camp Kyiv on Sep 01, 2009

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Drupal 7 development: first impressions — Presentation Transcript