ORM_Behavior_Guid
extends ORM_Behavior
extends Kohana_ORM_Behavior
Constants
- None
Properties
Properties
-
protected Database_Query_Builder_Select $_config
-
Database query builder
-
Default value:
NULL
-
protected string $_guid_column
-
Table column for GUID value
-
Default value:
string(4) "guid" -
protected boolean $_guid_only
-
Allow model creaton on guid key only
-
Default value:
bool TRUE
Methods
public on_construct(ORM $model , mixed $id ) (defined in ORM_Behavior_Guid)
Constructs a new model and loads a record if given
Parameters
- ORM $model required - The model
- mixed $id required - Parameter for find or object to load
Source Code
public function on_construct($model, $id)
{
if (($id !== NULL) AND ! is_array($id) AND ! ctype_digit($id))
{
if (UUID::valid($id))
{
$model->where($this->_guid_column, '=', $id)->find();
// Prevent further record loading
return FALSE;
}
}
return TRUE;
}
public on_create(ORM $model ) (defined in ORM_Behavior_Guid)
A new model is created, add a guid value
Parameters
- ORM $model required - The model
Source Code
public function on_create($model)
{
$this->create_guid($model);
}
public on_update(ORM $model ) (defined in ORM_Behavior_Guid)
The model is updated, add a guid value if empty
Parameters
- ORM $model required - The model
Source Code
public function on_update($model)
{
$this->create_guid($model);
}
public static factory(string $behavior [, mixed $config = NULL ] ) (defined in Kohana_ORM_Behavior)
Creates and returns a new ORM behavior.
Parameters
- string $behavior required - $type Type name
- mixed $config = NULL - $id Parameter for find()
Tags
Return Values
- ORM
Source Code
public static function factory($behavior, $config = NULL)
{
if ( ! is_string($behavior) AND is_array($config))
{
if ( ! is_callable($config))
throw new Kohana_Exception('Behavior cannot be created: function does not exists');
// This is either a callback as an array or a lambda
return new ORM_Behavior_LocalBehavior($config);
}
// Set class name
$behavior_name = 'ORM_Behavior_'.ucfirst($behavior);
return new $behavior_name($config);
}
protected __construct(array $config ) (defined in ORM_Behavior_Guid)
Constructs a behavior object
Parameters
- array $config required - Configuration parameters
Source Code
protected function __construct($config)
{
parent::__construct($config);
$this->_guid_column = Arr::get($config, 'column', $this->_guid_column);
$this->_guid_only = Arr::get($config, 'guid_only', $this->_guid_only);
}
private create_guid() (defined in ORM_Behavior_Guid)
Source Code
private function create_guid($model)
{
$current_guid = $model->get($this->_guid_column);
// Try to create a new GUID
$query = DB::select()->from($model->table_name())
->where($this->_guid_column, '=', ':guid')
->limit(1);
while (empty($current_guid))
{
$current_guid = sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand(0, 0xffff), mt_rand(0, 0xffff),
// 16 bits for "time_mid"
mt_rand(0, 0xffff),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand(0, 0x0fff) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand(0, 0x3fff) | 0x8000,
// 48 bits for "node"
mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
);
$query->param(':guid', $current_guid);
if ($query->execute()->get($model->primary_key(), FALSE) !== FALSE)
{
Log::instance()->add(Log::NOTICE, 'Duplicate GUID created for '.$model->table_name());
$current_guid = '';
}
}
$model->set($this->_guid_column, $current_guid);
}
