YII跨表查询多对多，$criteria->together = true的使用

例：

当C>B多对一的关系，B>A多对一的关系，当A关联到C的时候使用：

A："feedbackRecords"=>array(self::HAS_MANY,"wkeFeedbackRecord","fdFeedbackID"),

B："recordTypeMap"=>array(self::HAS_MANY,"wkeFeedbackTypeMap","fdFeedbackRecordID"),

$with[]="feedbackRecords.recordTypeMap";

$c->compare("recordTypeMap.fdTypeID", $args['typeMap']);

$c->together=true;