dbObject::insert PHP Method

    public function insert()
    {
        if (!empty($this->timestamps) && in_array("createdAt", $this->timestamps)) {
            $this->createdAt = date("Y-m-d H:i:s");
        }
        $sqlData = $this->prepareData();
        if (!$this->validate($sqlData)) {
            return false;
        }
        $id = $this->db->insert($this->dbTable, $sqlData);
        if (!empty($this->primaryKey) && empty($this->data[$this->primaryKey])) {
            $this->data[$this->primaryKey] = $id;
        }
        $this->isNew = false;
        return $id;
    }