/**
* Return current element
*
* Returns the current element value inside wrapper object
*
* Method for the {@link Iterator} interface implementation
*
* @return AeType current element or null, if array is empty
*/
public function current()
{
if (!$this->valid()) {
return null;
}
return $this->_array->offsetGet($this->_key);
}
/**
* Get connection
*
* Returns a database connection. If the connection is not established, uses
* options provided to establish one.
*
* @throws AeSessionDriverDatabaseException #400 if database options are
* invalid
*
* @return AeInterface_Database
*/
public function getConnection()
{
if ($this->_connection instanceof AeInterface_Database && !$this->_connection->isConnected()) {
// *** The connection is lost, try to reestablish it
$this->_connection = null;
}
if (!$this->_connection instanceof AeInterface_Database) {
// *** Establish connection first
if ($this->_options instanceof AeArray) {
// *** An array of settings
if (isset($this->_options['name'])) {
// *** Connection name and settings file path assumed
$this->_connection = AeDatabase::getConnection($this->_options['name'], $this->_options['settings']);
} else {
if (isset($this->_options['driver'])) {
// *** Connection options array assumed
$this->_connection = AeDatabase::getInstance($this->_options['driver'], $this->_options['username'], $this->_options['password'], $this->_options['options']->value);
} else {
// *** Invalid options array
throw new AeSessionDriverDatabaseException('Invalid database connection options', 400);
}
}
} else {
if ($this->_options instanceof AeCallback) {
// *** A callback
$this->_connection = $this->_options->call();
if (!$this->_connection instanceof AeInterface_Database) {
// *** Invalid callback return value
throw new AeSessionDriverDatabaseException('Invalid database connection options', 400);
}
} else {
// *** Invalid options value
throw new AeSessionDriverDatabaseException('Invalid database connection options', 400);
}
}
}
return $this->_connection;
}
/**
* Wrap return
*
* This method wraps (or unwraps) the value passed according to all the
* <var>$wrapReturn</var> settings.
*
* @param mixed $value
* @param mixed $default
*
* @return mixed
*/
public static function wrapReturn($value, $default = null)
{
if ($value instanceof AeType) {
$value = $value->getValue() === null ? $default : $value;
} else {
$value = $value === null ? $default : $value;
}
if (self::of($value) != 'object') {
// *** Wrap, if enabled
if (self::$wrapReturn === true && !$value instanceof AeType) {
return self::wrap($value);
}
// *** Detect further down the class tree
if (self::$wrapReturn === null) {
if (is_scalar($value) || $value instanceof AeScalar) {
return AeScalar::_wrapReturn($value);
}
if (is_array($value) || $value instanceof AeArray) {
return AeArray::_wrapReturn($value);
}
}
// *** Unwrap if disabled
if (self::$wrapReturn === false && $value instanceof AeType) {
return $value->getValue();
}
}
return $value;
}
