Yii min date validation rule - yii

Question

How can I add a minimum date validation rule in a Model?
Example:
I have a column dt_ini as DATE, which I need to restrict the input as D+7, on create.
If today is: october 1st, 2012
the minimum valid date on create would be: october 8th, 2012.
Otherwise, I would throw a validation error as: Your date must be at least 7 days from now.
The code I would expect is something like this: (this is NOT tested, and probably won't work)
public function rules(){
return array('dt_ini', 'date', 'minDate' => '+7'),
}
Thanks.

Answer 1

Is this what you are looking for?

Answer 2

Create custom valid rule as follows:
class YourModel extends CActiveModel
{
// some....
public function rules(){
return array('dt_ini', 'dateValid', 'minDate' => '+7 day', 'on' => 'create');
}
public function dateValid($attribute, $params)
{
$valid=null;
$today = date('Y-m-d', time());
if(isset($params['minDate']))
$valid = date('Y-m-d', strtotime($params['minDate'])); //+7 day
if( !is_null($valid) )
{ //for increamental date
if($this->dt_ini > $valid || $this->dt_ini < $today )
$this->addError($attribute, 'enter error message');
}
}
}