In the LinkedIn-symfony-group I stumbled upon a very useful link:
This is a must-read for all doctrine-beginners, I wish i woud have read it when I started… Here are the points in short:
- use the Symfony Profiler toolbar
- avoid object hydration
- use IDs for referencing rather than whole object
- use update-statement
- use lazy collections
- never load entities in a loop
More infos can be found in the article.
Currently I am programming a web-application with Symfony. In this app we got different kind of users: patients, doctors, experts, admins and so on. All of these users share some attributes (username, password, email), but some attributes only apply to several usertypes. A doctor for example has a departement, an expert a phone-number etc.
In the object oriented world of PHP this is an easy task: Patient extends User. But thanks to the magic of Doctrine this can be used within MySQL as well!
Daniel Barsotti wrote an excellent post about it: http://blog.liip.ch/archive/2012/03/27/table-inheritance-with-doctrine.html
Works like a charm!