Mage_Core_Model_Resource_Iterator Class Reference

Inheritance diagram for Mage_Core_Model_Resource_Iterator:

List of all members.

Public Member Functions
	walk ($query, array $callbacks, array $args=array())
Protected Member Functions
	_getStatement ($query, $conn=null)

---

Detailed Description

Active record implementation

Author:

Magento Core Team <core@magentocommerce.com>

Definition at line 32 of file Iterator.php.

---

Member Function Documentation

_getStatement	(	$	query,
		$	conn = null
	)			[protected]

Fetch Zend statement instance

Parameters:

	Zend_Db_Statement_Interface|Zend_Db_Select|string	$query
	Zend_Db_Adapter_Abstract	$conn

Returns:

Zend_Db_Statement_Interface

Definition at line 68 of file Iterator.php.

    {
        if ($query instanceof Zend_Db_Statement_Interface) {
            return $query;
        }

        if ($query instanceof Zend_Db_Select) {
            return $query->query();
        }

        $hlp = Mage::helper('core');

        if (is_string($query)) {
            if (!$conn instanceof Zend_Db_Adapter_Abstract) {
                Mage::throwException($hlp->__('Invalid connection'));
            }
            return $conn->query($query);
        }

        Mage::throwException($hlp->__('Invalid query'));
    }

walk	(	$	query,
		array $	callbacks,
		array $	args = array()
	)

Walk over records fetched from query one by one using callback function

Parameters:

	Zend_Db_Statement_Interface|Zend_Db_Select|string	$query
	array|string	$callback
	array	$args

Returns:

Mage_Core_Model_Resource_Activerecord

Definition at line 42 of file Iterator.php.

    {
        $stmt = $this->_getStatement($query);

        $args['idx'] = 0;
        while ($row = $stmt->fetch()) {
            $args['row'] = $row;
            foreach ($callbacks as $callback) {
                $result = call_user_func($callback, $args);
                if (!empty($result)) {
                    $args = array_merge($args, $result);
                }
            }
            $args['idx']++;
        }

        return $this;
    }

---

The documentation for this class was generated from the following file:

• app/code/core/Mage/Core/Model/Resource/Iterator.php