Some questions from novice..

[eluser]scor[/eluser]
I solved my problem. There was an error in doctrine query $q = Doctrine_Query::create()->from('ActiveLink')->where('link_id = '.$data['data']['link_id'].' AND user_id='.$this->session->userdata('user_id')); and it returned a wrong answer. And it recorded in $data['data']['user_links']. I didn't know why, but if $data['data']['user_links'] included an doctrined error hash, there was this error... It worked perfectly, if $data['data']['user_links'] included valid data.