/**
* Creates an index on a database with a name and an index key
* function. The index listens to database events to update itself.
*
* @param $db
* @param $name
* @param $keyFunc
* @param null $compare
*/
public function __construct($db, $name, $keyFunc, $compare = null)
{
$this->db = $db;
$this->name = $name;
$this->keyFunc = $keyFunc;
$this->compare = $compare;
// register with database
$this->db->on('saved', array($this, 'update'));
$this->db->on('deleted', array($this, 'delete'));
$this->db->on('repair', array($this, 'rebuild'));
}
public function testCache()
{
$a = array();
$f = function ($id, $data, $event = null) use(&$a) {
if (!isset($event)) {
$event = $data;
}
$a[] = $event;
};
self::$db->on('loaded', $f);
$cache = new Cache(self::$db);
self::$db->save('cached', array('foo' => 'bar'));
$a[] = $cache->load('cached');
$a[] = $cache->load('cached');
$ex = array('loaded', array('foo' => 'bar'), array('foo' => 'bar'));
$this->assertEquals($ex, $a);
}