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khosb/application/classes/orm.php
2012-01-12 19:55:16 +11:00

132 lines
4.0 KiB
PHP

<?php defined('SYSPATH') or die('No direct access allowed.');
/**
* This class overrides Kohana's ORM
*
* @package OSB/Modifications
* @category Classes
* @category Helpers
* @author Deon George
* @copyright (c) 2010 Deon George
* @license http://dev.leenooks.net/license.html
*/
class ORM extends Kohana_ORM {
protected $_table_names_plural = false;
protected $_model_names_plural = false;
private $_object_formated = array();
private $_formated = FALSE;
// Our filters used to display values in a friendly format
protected $_display_filters = array();
// Override check() so that it doesnt throw an exception.
// @todo Need to figure out how to show the items that fail validation
final public function check(Validation $extra_validation = NULL) {
// Determine if any external validation failed
$extra_errors = ($extra_validation AND ! $extra_validation->check());
// Always build a new validation object
$this->_validation();
$array = $this->_validation;
if (($this->_valid = $array->check()) === FALSE OR $extra_errors)
{
return FALSE;
}
return $this;
}
// Add our OSB site_id to each SELECT query
final protected function _build($type) {
// Exclude tables without site ID's
if (! in_array($this->_table_name,Config::$no_site_id_tables))
$this->where($this->_table_name.'.site_id','=',Config::siteid());
return parent::_build($type);
}
/**
* Format fields for display purposes
*
* @param string column name
* @return mixed
*/
private function _format() {
foreach ($this->_display_filters as $column => $formats)
$this->_object_formated[$column] = $this->run_filter($column,$this->__get($column),array($column=>$formats));
$this->_formated = TRUE;
}
/**
* Return a formated columns, as per the model definition
*/
public function display($column) {
// Trigger a load of the record.
$value = $this->__get($column);
// If some of our fields need to be formated for display purposes.
if (! $this->_formated AND $this->_display_filters)
$this->_format();
if (isset($this->_object_formated[$column]))
return $this->_object_formated[$column];
else
return HTML::nbsp($value);
}
/**
* Override KH's ORM has() function, to include our site_id in the query.
*
* This is a copy of KH's ORM has() function, with the addition of a where
* clause to include the site id.
*/
public function has($alias, $far_keys) {
$far_keys = ($far_keys instanceof ORM) ? $far_keys->pk() : $far_keys;
// We need an array to simplify the logic
$far_keys = (array) $far_keys;
// Nothing to check if the model isn't loaded or we don't have any far_keys
if ( ! $far_keys OR ! $this->_loaded)
return FALSE;
$count = (int) DB::select(array('COUNT("*")', 'records_found'))
->from($this->_has_many[$alias]['through'])
->where($this->_has_many[$alias]['foreign_key'], '=', $this->pk())
->where($this->_has_many[$alias]['far_key'], 'IN', $far_keys)
->where('site_id', '=', Config::siteid())
->execute($this->_db)->get('records_found');
// Rows found need to match the rows searched
return $count === count($far_keys);
}
/**
* Tests if this object has a relationship to a different model,
* or an array of different models.
*
* // Check for any of the following roles
* $model->has('roles', array(1, 2, 3, 4));
*
* @param string $alias Alias of the has_many "through" relationship
* @param mixed $far_keys An array of primary keys
* @return Database_Result
*/
public function has_any($alias, array $far_keys) {
// Nothing to check if the model isn't loaded or we don't have any far_keys
if ( ! $far_keys)
return FALSE;
// Rows found need to match the rows searched
return (int) DB::select(array('COUNT("*")', 'records_found'))
->from($this->_has_many[$alias]['through'])
->where($this->_has_many[$alias]['foreign_key'], '=', $this->pk())
->where($this->_has_many[$alias]['far_key'], 'IN', $far_keys)
->where('site_id', '=', Config::siteid())
->execute($this->_db)->get('records_found');
}
}
?>