/**
* This constructor instantiates this class using the specified model's name.
*
* @access public
* @param string $model the model's name
*/
public function __construct($model)
{
$name = $model;
$model = DB_ORM_Model::model_name($name);
$this->data_source = DB_DataSource::instance($model::data_source(DB_DataSource::MASTER_INSTANCE));
$builder = 'DB_' . $this->data_source->dialect . '_Update_Builder';
$this->builder = new $builder($this->data_source);
$extension = DB_ORM_Model::builder_name($name);
if (class_exists($extension)) {
$this->extension = new $extension($this->builder);
}
$table = $model::table();
$this->builder->table($table);
}
/**
* This function sets which table will be modified.
*
* @access public
* @param string $table the database table to be modified
* @param string $alias the alias to be used for the specified table
* @return DB_SQL_Update_Proxy a reference to the current instance
*/
public function table($table, $alias = NULL)
{
$this->builder->table($table, $alias);
return $this;
}
