yii\console\controllers\BaseMigrateController::actionNew PHP Method

    public function actionNew($limit = 10)
    {
        if ($limit === 'all') {
            $limit = null;
        } else {
            $limit = (int) $limit;
            if ($limit < 1) {
                throw new Exception('The limit must be greater than 0.');
            }
        }
        $migrations = $this->getNewMigrations();
        if (empty($migrations)) {
            $this->stdout("No new migrations found. Your system is up-to-date.\n", Console::FG_GREEN);
        } else {
            $n = count($migrations);
            if ($limit && $n > $limit) {
                $migrations = array_slice($migrations, 0, $limit);
                $this->stdout("Showing {$limit} out of {$n} new " . ($n === 1 ? 'migration' : 'migrations') . ":\n", Console::FG_YELLOW);
            } else {
                $this->stdout("Found {$n} new " . ($n === 1 ? 'migration' : 'migrations') . ":\n", Console::FG_YELLOW);
            }
            foreach ($migrations as $migration) {
                $this->stdout("\t" . $migration . "\n");
            }
        }
    }