Stuff

   public function carbonizationAction()
    {
        $research = $this->prepareResearch();        
        
        if ($this->_getParam('save') == 'true') {
            $samples = $this->getRequest()->getPost('samples'); 
            if (count($samples) > 0) {
                foreach ($samples as $sample) 
                {
                    foreach ($sample['layers'] as $layer)
                    {
//                        $this->dbm->deleteResearch_data($research['name'], 11);
                        foreach ($layer['carbonization_researches_data'] as $rank => $research_data)
                        {
                            if (!isset($distinct)){
                                $this->dbm->deleteResearch_data($research['name'], $research_data['carbonization_research_id']);
                                $distinct = true;
                            }
                            
//                                $research_data[$research['name'] . '_research_id'] = 11;
                            $research_data['rank'] = $rank;
                            $this->dbm->insertResearch_data($research['name'], $research_data);
                             
                        }
                        $distinct = null;
                    }
                }
            }
        }