/**
* Update a config setting if the first argument equal to the
* current config value
*
* @param string $compare If equal to the current config value, will be
* updated to the new config value, otherwise not
* @param string $config_name The name of the config setting you would
* like to update
* @param mixed $config_value The value of the config setting
* @return null
* @throws \phpbb\db\migration\exception
*/
public function update_if_equals($compare, $config_name, $config_value)
{
if (!isset($this->config[$config_name])) {
throw new \phpbb\db\migration\exception('CONFIG_NOT_EXIST', $config_name);
}
$this->config->set_atomic($config_name, $compare, $config_value);
}
/**
* Releases the lock.
*
* The lock must have been previously obtained, that is, acquire() call
* was issued and returned true.
*
* Note: Attempting to release a lock that is already released,
* that is, calling release() multiple times, is harmless.
*
* @return null
*/
public function release()
{
if ($this->locked) {
$this->config->set_atomic($this->config_name, $this->unique_id, '0', false);
$this->locked = false;
}
}
