yii: how to make a unique rule for two attributes

Question

I have a table like this: (id, name, version, text). (name, version) is unique key, how can i make a rule to validate this.

Answer 1

You do not need complicated content of rules() method nor 3rd party extensions. Just create your own validation method. It's much easier to do it on your own.

public function rules()
{
  return array(
    array('firstField', 'myTestUniqueMethod'),
  );
}

public function myTestUniqueMethod($attribute,$params)
{

   //... and here your own pure SQL or ActiveRecord test ..
   // usage: 
   // $this->firstField;
   // $this->secondField;
   // SELECT * FROM myTable WHERE firstField = $this->firstField AND secondField = $this->secondField ...
   // If result not empty ... error

  if (!$isUnique)
  {
    $this->addError('firstField', "Text of error");
    $this->addError('secondField', "Text of error");
  }

}