yii - Saving Many-to-Many Relationships with TokenInput -

help me, oh mighty hive mind. you're hope.

i have been working on small app work i'm building around database (go figure). while have managed save relationship data more manually iterating through data, creating new model each, , saving information, know there must cleaner way this:

foreach($keys $k) {   //build model associate keyword $k   $facts_keyword=new factskeyword;   $facts_keyword['fact_id']=$model->id;   $facts_keyword['keyword_id']=$k;   if(!$facts_keyword->save()) //check errors on saving     echo "failure save facts_keywords"; } 

to make work, have made model reference table between tables facts , keywords. reference table has 2 columns facts_id , keywords_id. using tokeninput plugin yii input keywords associated given fact. relevant view code here:

<div id="keywords" class="row"> <?php echo $form->labelex($keyword,'keywords'); ?> <?php $this->widget('ext.tokeninput.tokeninput', array(     'model'=>$keyword,     'attribute'=>'name',     'url'=>array('keyword/searchkeys'),     'options' => array(         'allowcreation'=>false,         'preventduplicates'=>true,         'resultsformatter'=>'js:function(item){ return "<li><p>" + item.name + "</p></li>" }',         'prepopulate'=>$key,         'theme'=>'facebook',         'minchars'=>2,     ) )); ?> <?php echo $form->error($keyword,'name'); ?> </div> 

the relationship fact model looks this: 'keywords' => array(self::many_many, 'keyword', 'facts_keywords(fact_id, keyword_id)')'

how can save information view in cleaner way? have tried change 'model'=>$keyword 'model'=>$fact , changing 'attribute'=>'name' 'attribute'=>'sources' gives error: trim() expects parameter 1 string, array given doing wrong?

just use extension: activerecord-relation-behavior