News Feed
Sections




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

ServerGrove Blog:
Enforcing unique key constrains with Doctrine ODM for MongoDB & Symfony 2
October 21, 2010 @ 11:58:22

New on the ServerGrove blog today is a quick post talking about how you can enforce key constraints on a MongoDb with Doctrine in Symfony.

Of course you can define unique indexes to prevent duplicate values and there are a couple of different syntax options to do so, which are clearly defined in the official documentation. But defining and creating the indexes is not enough. You must specify when you want to enforce the constrain, this is due to the fact that the PHP driver needs to tell MongoDB to throw an error when a duplicate key is found.

The fix is as simple as adding a "safe" option to the "flush()" call on your database object. If you give it a value of "true", the ORM is smart enough to handle things on its own.

0 comments voice your opinion now!
mongodb enforce symfony constraint unique doctrine


blog comments powered by Disqus

Similar Posts

Symfony Blog: Questions and Answers about "Practical symfony" book

ServerGrove Blog: Implementing a staging/live website system with symfony and Apostrophe CMS

ServerGrove Blog: Configuring Symfony to use Zend Framework 1.8.0 new Autoloader

Community News: Symfony Project's "One Day One Ticket" Contest

ServerGrove Blog: Common problems designers have when working with Symfony


Community Events





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


developer series introduction unittest refactor community threedevsandamaybe install code interview laravel language configure opinion list wordpress testing framework release podcast

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