codeigniter is returning database row considered oop

I have done somthing like this, and yes I have created a model_row class to pass all data to in a array_walk style:

if ($qry = $this->db->get()) {  $res = $qry->result();  return $this->_instantiateRows($res);}

Function _instantiateRows():

/**   * Get the row class name   * Checks if a class exists with the model name _Row   * @return string   */  private function _getRowClass() {    $modelName = get_class($this);    return class_exists($modelName.'_Row') ? $modelName.'_Row' : 'Model_Row';  }  /**   * Formats results into model row classes   * @param array $results   * @return array   */  protected function _instantiateRows($results) {    $rowClass = $this->_getRowClass();    $self = $this;    array_walk($results,function(&$row,$k) use ($rowClass, $self) {      $row = new $rowClass($row,$self,$k);    });    return $results;  }

Then a row class:

/** * Model row class * Acts as a baseclass and a fallback class for database rows * Implements standard methods, for saving, getting the ID, and setting field * values. * @property $_model MY_Model * @property $_key Original Array key * @property $_ID_FIELD name of the id field */class Model_Row{  protected $_isNew = True;  protected $_model = False;  protected $_key = False;  protected $_ID_FIELD = 'id';  protected $_ID_ORIGINAL = False;  /**   * C'tor   * Sets up the object with data from the row   * @param object $data   * @param object $model   * @param int $key   * @param string $id_field   */  public function __construct($data,$model,$key=False) {    $this->_key = $key;    // If no key is specified then it must be new / Not from database    if ($this->_key !== False)      $this->_isNew = False;    $data = (array)$data;    $this->_model = $model;    $this->_ID_FIELD = $model->idField;    $this->set($data);    // Ensure ID Field is set.    $idF = $this->_ID_FIELD;    if (!isset($this->$idF))      $this->$idF = null;  }  /**   * Get the ID field   * ID Field could be named differently for each model, this is an easy   * shortcut to it.   * @param string $setTo - set the id to this value   * @return string   */  public function id($setTo=False) {    $idF = $this->_ID_FIELD;    if ($setTo !== False) {      if ($this->_ID_ORIGINAL === False && !$this->_isNew)        $this->_ID_ORIGINAL = $this->$idF;      $this->set($idF,$setTo);    }    return $this->$idF !== null ? (string)$this->$idF : False;  }  /**   * Save this row   * @return bool   */  public function save() {    $wheres = array();    if (!$this->_isNew) {      $idF = $this->_ID_FIELD;      $wheres[$idF] = $this->_ID_ORIGINAL ?: $this->id();    }    $res = $this->_model->set($this,$wheres);    if ($this->id() === False)      $this->id($this->_model->insertID());    // Reset the original id field    $this->_ID_ORIGINAL = False;    $this->_isNew = False;    if ($res)      return $this;    return False;  }  /**   * Set object properties   * can be passed by array field => value   * @param mixed $field   * @param mixed $value   * @return null   */  public function set($field,$value=False) {    if ((is_array($field) || is_object($field)) && $value === False) {      if (is_object($field))        $field = (array)$field;      foreach($field as $f => $v)        $this->set($f,$v);    }    else {      if (method_exists($this, 'set_'.$field))        call_user_func(array($this,'set_'.$field), $value);      else        $this->$field = $value;    }  }}

The point of the _getRowClass is to check for a class called model_name_row if this exists, then instantiate the data to this class, otherwise fall back to the baseclass model_row

There are some other things your model will need too, because the row class will be passed the model, so your model will need a public $idField='id' , and then this function can be usefull on your model:

/**   * Create a new record using the model row class   * @param mixed $data   * @return Model_Row   */  public function newRow($data=array()) {    $rowClass = $this->_getRowClass();    return new $rowClass($data,$this);  }

So you can do $newRow = $this->Model->newRow($data) which will create a new row, then can call $newRow->save() and other methods if set...

* EDIT

Also to point out, I use $this->_model->set($this, $wheres) on the row class, this is because I have defined a baseclass with a public setter:

/**   * Setter   * @param mixed $data object or array   * @param mixed $wheres object or array query   * @return bool   */  public function set($data,$wheres=array()) {    if (!$this->checkTableSet())      return False;    if (empty($wheres)) {      return $this->db->insert($this->table,$data);    }    else {      $this->db->where($wheres);      return $this->db->update($this->table,$data);    }  }

$this->table is a model variable with the table name, e.g. protected $table='users'; and the function checkTableSet() simply checks whether this has been set and not empty..