| public static decrement ( string $name, string $key, integer $offset = 1, array $options = [] ) : integer | boolean | ||
| $name | string | Name of the cache configuration to use. |
| $key | string | Key of numeric cache item to decrement |
| $offset | integer | Offset to decrement - defaults to 1. |
| $options | array | Options for this method. - `'conditions'`: A function or item that must return or evaluate to `true` in order to continue operation. |
| Результат | integer | boolean | Item's new value on successful decrement, false otherwise. |
public static function decrement($name, $key, $offset = 1, array $options = array())
{
$options += array('conditions' => null);
if (is_callable($options['conditions']) && !$options['conditions']()) {
return false;
}
try {
$adapter = static::adapter($name);
} catch (ConfigException $e) {
return false;
}
$key = static::key($key);
$params = compact('key', 'offset');
return static::_filter(__FUNCTION__, $params, function ($self, $params) use($adapter) {
return $adapter->decrement($params['key'], $params['offset']);
});
} public function testDecrement()
{
$config = array('default' => array('adapter' => 'Memory', 'filters' => array()));
Cache::config($config);
$result = Cache::config();
$expected = $config;
$this->assertEqual($expected, $result);
$result = Cache::write('default', 'decrement', 5, '+1 minute');
$this->assertTrue($result);
$result = Cache::decrement('default', 'decrement');
$this->assertTrue($result);
$result = Cache::read('default', 'decrement');
$this->assertEqual(4, $result);
}
