Updating single database cell in Zend Framework Model - zend-framework

Question

Simple one hopefully, is there a specific way i should be updating a single database value using a model in Zend Framework.
I currently do this:
class Model_MyModel extends Zend_Db_Table_Abstract
{
$_name = 'table';
public function updateSetting($id,$status)
{
$data = array(
'status' => $status
);
$this->update($data, 'id = '.$id);
}
}
$update = new Model_MyModel();
$update->updateSetting(10,1);
Obviously i could pass in another argument as the column to update. I just wondered if there was a more "magic" way i should be doing this?

Answer 1

You could write a simple property overloader for this:
class Model_MyModel extends Zend_Db_Table_Abstract
{
protected $_name = 'table';
/**
* Should be a Zend_Db_Table_Row instance
*
* #var Zend_Db_Table_Row
*/
protected $_currentRow = null;
/**
* Property overloader
*
* For more information on this see
* http://www.php.net/manual/en/language.oop5.overloading.php#language.oop5.overloading.members
*
* #param string $key
* #param string $value
* #return void
*/
public function __set($key, $value)
{
$row = $this->getCurrentRow();
if (null !== $row)
{
$row->$key = $value;
}
else
{
throw new Exception('Cannot update a column on a non existent row!');
}
}
/**
* Save current row
*
* #return Model_MyModel
*/
public function saveCurrentRow()
{
$row = $this->getCurrentRow();
if (null !== $row)
{
$row->save();
}
else
{
throw new Exception('Cannot save a non existent row!');
}
}
/**
* Set current row
*
* #param Zend_Db_Table_Row $row
* #return Model_MyModel
*/
public function setCurrentRow(Zend_Db_Table_Row $row)
{
$this->_currentRow = $row;
return $this;
}
/**
* Get current row
*
* #return Zend_Db_Table_Row
*/
public function getCurrentRow()
{
return $this->_currentRow;
}
}
You could then do stuff like this:
$model = new Model_MyModel();
$model->status = 'foo';
$model->somecolumn = 'bar'
$model->saveCurrentRow();
Although this approach would require the least editing in your code, an even better approach would be seperating your models from your database tables and use a Data Mapper Pattern as described in the Quickstart.