Php 通过cdbcriteria yii、mysql db获得完全加入？

使用Yii的Cdbcriteria类如何获得完全加入（db是mysql）？我知道它可以通过左连接和右连接的并集来实现……但我没有得到它的syntex

$criteria = new CDbCriteria;
$criteria->with = array(
    'posts' => array(
       'joinType' => 'INNER JOIN',
       'together' => true,
    ),
);
$models = User::model()->findAll($criteria);

foreach($models AS $model) {
    echo $model->username;// gives you the username
    foreach($model->posts AS $post) {
       echo $post->title; // gives you the post title
    }
}
// if it's about only one user:
$criteria = new CDbCriteria;
$criteria->addCondition('user_id', (int)$user_id);
$criteria->with = array(
   'posts' => array('together' => true, 'joinType' => 'INNER JOIN'),
);
$model = User::model()->find($crieteria);
echo $model->username;
foreach ($model->posts AS $post) {
  echo $post->title;
}
// also you can:
$model = User::model()->with('posts')->findByPk((int)$user_id);
echo $model->username;
foreach($model->posts AS $post) {
  echo $post->title;
}

---

在上面的例子中，我们假设我们有一个用户表，它与posts表有一：多关系，并且posts关系是在Yii AR的

relations（）

方法中定义的。

。请帮助……。我必须使用db模型的内部搜索