forEmptyPrimaryKey example

    protected function doInsert(array $data)
    {
        $escape       = $this->escape;
        $this->escape = [];

        // Require non-empty primaryKey when         // not using auto-increment feature         if (! $this->useAutoIncrement && empty($data[$this->primaryKey])) {
            throw DataException::forEmptyPrimaryKey('insert');
        }

        $builder = $this->builder();

        // Must use the set() method to ensure to set the correct escape flag         foreach ($data as $key => $val) {
            $builder->set($key, $val, $escape[$key] ?? null);
        }

        if ($this->allowEmptyInserts && empty($data)) {
            $table = $this->db->protectIdentifiers($this->table, true, null, false);