public function actionAddSample()
 {
     if (isset($_POST['dataset_id']) && isset($_POST['sample_name']) && isset($_POST['species'])) {
         $transaction = Yii::app()->db->beginTransaction();
         try {
             if ($_POST['sample_name'] == "") {
                 Util::returnJSON(array("success" => false, "message" => Yii::t("app", 'Cannot add sample, please input "Sample ID" value.')));
             }
             if ($_POST['species'] == "") {
                 Util::returnJSON(array("success" => false, "message" => Yii::t("app", 'Cannot add sample, please input "valid  species" value.')));
             }
             $array = explode(":", $_POST['species']);
             $tax_id = $array[0];
             $species = Species::model()->findByAttributes(array('tax_id' => $tax_id));
             if (!$species) {
                 Util::returnJSON(array("success" => false, "message" => Yii::t("app", 'Cannot add sample, please input "valid  species" value.')));
             }
             #create new sample
             $sample = new Sample();
             $sample->species_id = $species->id;
             $sample->name = $_POST['sample_name'];
             $sample->submitted_id = Yii::app()->user->id;
             $sample->submission_date = date('Y-m-d H:i:s');
             $user = User::model()->findByPk(Yii::app()->user->id);
             if ($user) {
                 $sample->contact_author_name = $user->first_name . " " . $user->last_name;
                 $sample->contact_author_email = $user->email;
             }
             if ($sample->save()) {
                 #create dataset sample
                 $ds = new DatasetSample();
                 $ds->dataset_id = $_POST['dataset_id'];
                 $ds->sample_id = $sample->id;
                 if ($ds->save()) {
                     $transaction->commit();
                     Util::returnJSON(array("success" => true));
                 }
             }
             Util::returnJSON(array("success" => false, "message" => Yii::t("app", "Save Error.")));
         } catch (Exception $e) {
             $message = $e->getMessage();
             Yii::log(print_r($message, true), 'error');
             $transaction->rollback();
             Util::returnJSON(array("success" => false, "message" => Yii::t("app", 'Cannot add sample, please input "valid  species" value.')));
         }
     }
 }
 public function actionChoose()
 {
     $model = new Sample('search');
     $model->unsetAttributes();
     // clear any default values
     if (isset($_GET['samples'])) {
         $result = $this->storeDataset();
         $dataset_id = $result[0];
         $samples_id = $_GET['samples'];
         $samples_array = explode(",", $samples_id);
         foreach ($samples_array as $key => $value) {
             $datasetSample = new DatasetSample();
             $datasetSample->dataset_id = $dataset_id;
             $datasetSample->sample_id = $value;
             if ($datasetSample->save()) {
             }
         }
         $this->redirect(array('/dataset/' . $result[1]));
     }
     //        if (isset($_POST['DatasetSample'])) {
     //            $model->attributes = $_POST['DatasetSample'];
     //            if ($model->save())
     //                $this->redirect(array('view', 'id' => $model->id));
     //        }
     if (isset($_GET['Sample'])) {
         $model->attributes = $_GET['Sample'];
     }
     //$model->getPagination()->pageSize = $model->count();
     $this->render('choose', array('model' => $model));
 }