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Changing the CakePHP Model Schema on the Fly
Posted on 06/11/2009 at 10:28 am by Kevin Wentworth
Viewed 9,943 times | 0 comments
I have an interesting way of dynamically changing a model's validation on the fly. I have a standard approach that involves contact forms, contest entries, etc. using a database to store which fields should be on a form. I tweaked this over time, and recently needed to change the schema from text, which all answers have been up to this point (and IS the DB field type), to a type of date. I kept getting the error 'preg_replace expects parameter 2 to be a string, array given'. Once I got the right schema, the errors went away.
Here is how I change the schema on the fly, from within the CakePHP model:
- $this->_schema = array('answer'=>array('type'=>'date'));
Simple, yet really powerful. Maybe if I have time in the future, I will demonstrate my dynamic, db-driven forms generator.