News Feed
Jobs Feed
Sections




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

Ralph Schindler's Blog:
Composite Rowsets For Many-To-Many Relationships Via Zend_Db_Table
November 16, 2010 @ 11:08:24

Ralph Schindler has posted a handy tutorial (along with some helpful code) to his blog today about handling many-to-many composite rowset relationships with the Zend_Db component of the Zend Framework.

One of the hardest problems to solve when developing an ORM of any complexity is in deciding how to handle the retrieval of rows that satisfy a many-to-many relationship, also known as a M:N relationship. [...] To model M:N relationships, database developers must get creative. By employing the use of a "3rd party", and by utilizing foreign keys that model a 1:N relationship, database developers can model a M:N relationship.

He looks at the Zend_Db_Table_Row class of the framework and how it works with these junction tables and how it has an issue where it returns the junction table columns too. A fix was released (in 1.10.2) for the framework to work correctly. Unfortunately, this also left those using the method out in the cold. So, Ralph has created his own workaround called a composite rowset. He includes an example snippet to give you an idea of how it works, but you can download the code from his github repository for a closer look.

0 comments voice your opinion now!
composite rowset zendframework zenddbtable manytomany database


blog comments powered by Disqus

Similar Posts

ProDevTips.com: Writing a CMS/Community with Smarty and the Zend Framework: Part 6

Chris Jones' Blog: Zend Framework .htacess and Multiple Controllers

Zend Developer Zone: Zend_Gdata for Picasa, YouTube, Google Documents List

Software Testing Magazine: PHPUnit Tips & Tricks

Lorenzo Alberton's Blog: Zend Framework, mod_rewrite and public dir in shared hosting


Community Events











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


unittest composer podcast release security series application hhvm performance hack introduction symfony2 facebook package install opinion language database framework component

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