Validation in Yii

Question

Can one validation rules be shared for Edit and Create pages?

For example, when creating a photo album, you must provide a name and select an image (the cover of that album). And then a form is serialized. Suppose a form looks like as,

<form>

   <input type="text" name="name"/> 

   <br />

   <input type="file" name="cover" /> 

</form>

Again : A field name cannot be blank and an image should be selected in cover

But what about Edit page? Here name is a must, but cover isn't (because user might leave it blank in order to to override an existing cover)!

Can this be done by default in Yii?

Answer 1

You can specify multiple scenarios for a rule :

array($attributes,$validation,'on'=>'update,insert')

http://www.yiiframework.com/wiki/266/understanding-scenarios

Answer 2

You need to write the rule with scenario for creating, only for name:

array('name', 'required', 'on'=>'create'), 

If your other fields (gender, country...) aren't related to any scenario then they will be applied also in 'create' scenario.

 array('gender', 'required'), 

Use $model->setScenario('create') on creating action.

Answer 3

If you want different validation for edit and Insert, You can set in model rules as below

array('name', 'required', 'on'=>'create'), 

Reference: http://www.yiiframework.com/wiki/266/understanding-scenarios