PHP Yii ActiveRecord FindAllByPk()

Definition:
public array findAllByPk(mixed $pk, mixed $condition='', array $params=array ( ))
(refer http://www.yiiframework.com/doc/api/1.1/CActiveRecord#findAllByPk-detail)


Explanation:
Find all active records with specified primary key


$pk can be either 
1. string -> single-key primary key
2. array  -> single-composite-key primary key
(refer createPkCriteria in yii\framework\db\schema\CDbCommandBuilder.php)


Example:
1. $model = MyModel::model()->findAllByPk($id);
2. $model = MyModel::model()->findAllByPk(array('pkCol1'=>$col1, 'pkCol2'=>$col2));


Internal:

findAllByPk($pk, $condition, $param)
|-$criteria = createPkCriteria($this->getTableSchema(),$pk,$condition,$params,$prefix)
  Note: $criteria is a CDbCriteria
  |-query($criteria, TRUE)
    Note: TRUE means select all active records