Question

我正在尝试使用Yii 1.x运行事务查询 - 如果出现问题，这应该基本上回滚所有查询，人们可以确认这是使用Yii 1运行事务的正确方法吗？

// data comes from a csv
 $transaction = Yii::app()->db->beginTransaction();
    try
    {

        if (($handle = fopen($path, "r")) !== false) {
            while (($data = fgetcsv($handle)) !== FALSE) {
                if ($currentRow == 1) {
                    $header = $this->import_fields(array_map('strtolower', $data));
                    $currentRow++;
                    continue;
                } else {
                    $data = array_combine($header, $data);
                    $csv_import_model = null;

                    if (!empty($data['username'])) {
                        $csv_import_model = StudentImportForm::model()->findByAttributes(array(
                            'username' => $data['username'],
                            'organisation_id' => user()->data->organisation->getViewOrgId()
                        ));
                    }

                    if (is_null($csv_import_model)) {
                        $csv_import_model = new StudentImportForm();
                        $isNew = true;
                    } else {
                        $isNew = false;
                    }

                    $csv_import_model->scenario = 'import';
                    $csv_import_model->setAttributes($data);
                    $csv_import_model->unsetAttributes(array('password'));

                    if ($csv_import_model->validate()) {

                        if (in_array($csv_import_model->username, $processedUsername)) {
                            $csv_import_model->addError('username', sprintf('Duplicate username (%1$s) found in csv file. which may already exists on row number %2$s.', $csv_import_model->username, (array_search($csv_import_model->username, $processedUsername) + 1)));
                        } else {

                            if ($csv_import_model->save()) {

                                if ($isNew) {
                                    $this->csv_results['inserted'] = $this->csv_results['inserted']+1;
                                } else {
                                    $this->csv_results['updated'] = $this->csv_results['updated']+1;
                                }

                            } else {
                                $this->csv_results['error'][$currentRow] = $csv_import_model->getErrors();
                            }
                        }
                    } else {
                        $csv_import_model->csv_index = $currentRow;
                        $this->csv_results['error'][$currentRow] = $csv_import_model->getErrors();
                    }

                    $processedUsername[] = $csv_import_model->username;

                    $currentRow++;
                    Yii::getLogger()->flush(false);
                }
            }
            fclose($handle);
        }

        $transaction->commit();
    }
    catch(Exception $e)
    {
        $transaction->rollback();
    }

Answer 1

$ model-＆gt; save（）在发生异常时不会抛出异常。它返回true或false。为了回滚整个块，如果save（）返回false，则必须手动抛出异常。尝试这样的事情：

$errors = null;
try {
    if ($csv_import_model->save()) {
        // continue with whatever logic you have
        $transaction->commit();
    }else{
        $errors = 'Error when saving';
        throw new Exception('Could not save model');
    }
}catch(Exception $e){
   //Do some logging here
   $transaction->rollback();
   if($errors != null){
       Yii::app()->user->setFlash('error', $errors);
   }
}

在Yii 1.x中运行事务查询

1 个答案: