News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Liip Blog:
Table Inheritance with Doctrine
March 28, 2012 @ 09:30:09

On the Liip blog there's a recent post looking at table inheritance with Doctrine, the popular PHP ORM tool. In the post, Daniel Barsotti talks about a database model that needed some updating due to their searching needs.

Our first idea, and it was not that bad, Drupal does just the same, was to have a database table with the common fields, a field containing the type of item (it's either an event or a blog post) and a data field where we serialized the corresponding PHP object. This approach was ok until we had to filter or search LabLog items based on fields that were contained in the serialized data.

To resolve the issue they turned to multiple table inheritance, relating the LabLogItem to both a BlogPost and Event. They also show how it could be modeled with a single table, but opt for the multiple method. Included in the post is the Doctrine-based code showing how to create the parent entity for the LabLogItem and the two child entities for the blog post and event. There's also a brief snippet showing how to use them with the EntityManager.

0 comments voice your opinion now!
table inheritance doctrine orm tutorial multiple


blog comments powered by Disqus

Similar Posts

PHPImpact Blog: 5 great articles on SPL Iterators

IBM developerWorks: Developing PHP the Ajax way, Part 2 - Back, Forward, Reload

James Fuller's Blog: Adding a Session Flash Message to your site in Lithium PHP

William Durand: REST APIs with Symfony2: The Right Way

Make Me Pulse: Using Memcached with PHP Zend Framework


Community Events





Don't see your event here?
Let us know!


configure community api threedevsandamaybe bugfix podcast wordpress developer interview list release introduction series install symfony language application library code laravel

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework