Yii dynamical validation. Is there another way? - yii

Question

I have some model. Depending on value of typeId some params should be required
typeId=1 Required: param2 param3 param4 param5 param6 param7 param9
typeId=2 Required: param1 param3 param4 param5
typeId=3 Required: param1 param3 param8 param9
typeId=4 Required: param1 param3
typeId=5 Required: param1 param10
So i solved it in this way:
public function rules()
{
return array(
array('typeId, param1, param2', 'numerical', 'integerOnly'=>true),
array('param3, param4, param5, param6, param7, param8, param9', 'length', 'max'=>20),
array('param10, param11', 'length', 'max'=>255),
array('created, deleted', 'safe'),
array('typeId', 'required', 'on'=>'insert, update'),
array('typeId', 'exist', 'attributeName'=>'id', 'className'=>'Type', 'message'=>'Select {attribute}'),
array('id, typeId, param1, param2, param3, param4, param5, param6, param7, param8, param9, param10, param11, created, deleted', 'safe', 'on'=>'search'),
//dynamic rules
array('param1', 'required', 'on'=>'type2, type3, type4, type5'),
array('param1', 'exist', 'attributeName'=>'id', 'className'=>'Param1', 'message'=>'Select {attribute}', 'on'=>'type2, type3, type4, type5'),
array('param2', 'required', 'on'=>'type1'),
array('param2', 'exist', 'attributeName'=>'id', 'className'=>'Param2', 'message'=>'Select {attribute}', 'on'=>'type1'),
array('param3', 'required', 'on'=>'type1, type2, type3, type4'),
array('param4', 'required', 'on'=>'type1, type2'),
array('param5', 'required', 'on'=>'type1, type2'),
array('param6', 'required', 'on'=>'type1'),
array('param7', 'required', 'on'=>'type1'),
array('param8', 'required', 'on'=>'type3'),
array('param9', 'required', 'on'=>'type1, type3'),
array('param10', 'required', 'on'=>'type5'),
);
}
public function validate($attributes=null, $clearErrors=true)
{
if($clearErrors)
$this->clearErrors();
if($this->beforeValidate())
{
foreach($this->getValidators() as $validator)
$validator->validate($this,$attributes);
//validate dynamic rules
if(!$this->hasErrors())
{
$scenario=$this->scenario;
if($this->scenario=$this->getSubscenario($this->signalId))
{
foreach($this->getValidators() as $validator)
$validator->validate($this,$attributes);
}
$this->scenario=$scenario;
}
$this->afterValidate();
return !$this->hasErrors();
}
else
return false;
}
public function getSubscenario($typeId)
{
switch($typeId)
{
case Signal::TYPE_1:
return 'type1';
case Signal::TYPE_2:
return 'type2';
case Signal::TYPE_3:
return 'type3';
case Signal::TYPE_4:
return 'type4';
case Signal::TYPE_5:
return 'type5';
default:
return false;
}
}
Is there another way?