Linked Required Fields

This came up today as something that is a very basic requirement when developing complex forms, but there was no way built in to Yii to handle it quickly and consistently across multiple models, so I created a custom validator for it. I hope it helps others to move forward quickly with their complex form development ;)


The need was that when a specific field was set or a specific value was selected for a field, additional fields would become required.

The solution? ChildrenRequiredValidator


http://www.yiiframework.com/extension/childrenrequiredvalidator/

Any feedback or suggestions are more than welcome!

Posting with multiple models

I spent a good bit of time trying to figure out how to render multiple models in a form and have them each validate properly.

Knowing the solution, it seems quite obvious, but it took a while to track down the proper syntax.

In this example I have a custom CForm which contains a few different $model properties, in addition to the base form data.

To call the validation on multiple models in the form, simply modify any calls of

CActiveForm::validate($model);

to use an array of models as the first parameter as such:

CActiveForm::validate( array($model, $model->subModel, $model->subModel2) );