@ -144,6 +144,46 @@ class IslandoraFedoraObject extends FedoraObject {
protected $fedoraDatastreamClass = 'IslandoraFedoraDatastream';
protected $fedoraRelsExtClass = 'IslandoraFedoraRelsExt';
/**
* Magical magic, to allow recursive modifications.
*
* So... Magic functions in PHP are not re-entrant... Meaning that if you
* have something which tries to call __set on an object anywhere later in
* the callstack after it has already been called, it will not call the
* magic method again; instead, it will set the property on the object
* proper. Here, we detect the property being set on the object proper, and
* restore the magic functionality as long as it keeps getting set...
*
* Not necessary to try to account for this in Tuque proper, as Tuque itself
* does not have a mechanism to trigger modifications resulting from other
* modifications.
*
* @param string $name
* The name of the property being set.
* @param mixed $value
* The value to which the property should be set.
*/
public function __set($name, $value) {
parent::__set($name, $value);
// Recursion only matters for magic properties... "Plain" properties cannot
// call other code in order to start recursing, and in fact we would get
// stuck looping with a "plain" property.
if ($this->propertyIsMagical($name)) {
// XXX: Due to the structure of the code, we cannot use property_exists()
// (because many of the properties are declared in the class, and the
// magic triggers due them being NULLed), nor can we use isset() (because
// it is implemented as another magic function...).
$vars = get_object_vars($this);
while (isset($vars[$name])) {
$new_value = $this->$name;
unset($this->$name);
parent::__set($name, $new_value);
$vars = get_object_vars($this);
}
}
}
/**
* Ingest the given datastream.
*
@ -173,6 +213,30 @@ class IslandoraFedoraObject extends FedoraObject {
throw $e;
}
}
/**
* Inherits.
*
* Calls parent and invokes object modified and deleted(/purged) hooks.
*
* @see FedoraObject::modifyObject()
*/
protected function modifyObject($params) {
try {
parent::modifyObject($params);
islandora_invoke_object_hooks(ISLANDORA_OBJECT_MODIFIED_HOOK, $this->models, $this);
if ($this->state == 'D') {
islandora_invoke_object_hooks(ISLANDORA_OBJECT_PURGED_HOOK, $this->models, $this->id);
}
}
catch (Exception $e) {
watchdog('islandora', 'Failed to modify object: @pid< / br > code: @code< br / > message: @msg', array(
'@pid' => $this->id,
'@code' => $e->getCode(),
'@msg' => $e->getMessage()), WATCHDOG_ERROR);
throw $e;
}
}
}
class IslandoraRepositoryConnection extends RepositoryConnection {}
@ -219,25 +283,10 @@ class IslandoraFedoraApiM extends FedoraApiM {
if (isset($params['lastModifiedDate'])) {
$params['lastModifiedDate'] = (string) $object[$dsid]->createdDate;
}
try {
if ($context['block']) {
throw new Exception('Modify Datastream was blocked.');
}
$ret = parent::modifyDatastream($pid, $dsid, $params);
islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_MODIFIED_HOOK, $object->models, $dsid, $object, $datastream);
if (isset($params['dsState']) & & $params['dsState'] == 'D') {
islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $object->models, $dsid, $object, $dsid);
}
return $ret;
}
catch (Exception $e) {
watchdog('islandora', 'Failed to modify datastream @dsid from @pid< / br > code: @code< br / > message: @msg', array(
'@pid' => $pid,
'@dsid' => $dsid,
'@code' => $e->getCode(),
'@msg' => $e->getMessage()), WATCHDOG_ERROR);
throw $e;
}
return parent::modifyDatastream($pid, $dsid, $params);
}
/**
@ -254,24 +303,10 @@ class IslandoraFedoraApiM extends FedoraApiM {
);
islandora_alter_object($object, $context);
$params = $context['params'];
try {
if ($context['block']) {
throw new Exception('Modify Object was blocked.');
}
$ret = parent::modifyObject($pid, $params);
islandora_invoke_object_hooks(ISLANDORA_OBJECT_MODIFIED_HOOK, $object->models, $object);
if (isset($params['state']) & & $params['state'] == 'D') {
islandora_invoke_object_hooks(ISLANDORA_OBJECT_PURGED_HOOK, $object->models, $object->id);
}
return $ret;
}
catch (Exception $e) {
watchdog('islandora', 'Failed to modify object: @pid< / br > code: @code< br / > message: @msg', array(
'@pid' => $pid,
'@code' => $e->getCode(),
'@msg' => $e->getMessage()), WATCHDOG_ERROR);
throw $e;
}
return parent::modifyObject($pid, $params);
}
/**
@ -377,6 +412,71 @@ class IslandoraNewFedoraDatastream extends NewFedoraDatastream {
class IslandoraFedoraDatastream extends FedoraDatastream {
protected $fedoraRelsIntClass = 'IslandoraFedoraRelsInt';
protected $fedoraDatastreamVersionClass = 'IslandoraFedoraDatastreamVersion';
/**
* Magical magic, to allow recursive modifications.
*
* So... Magic functions in PHP are not re-entrant... Meaning that if you
* have something which tries to call __set on an object anywhere later in
* the callstack after it has already been called, it will not call the
* magic method again; instead, it will set the property on the object
* proper. Here, we detect the property being set on the object proper, and
* restore the magic functionality as long as it keeps getting set...
*
* Not necessary to try to account for this in Tuque proper, as Tuque itself
* does not have a mechanism to trigger modifications resulting from other
* modifications.
*
* @param string $name
* The name of the property being set.
* @param mixed $value
* The value to which the property should be set.
*/
public function __set($name, $value) {
parent::__set($name, $value);
// Recursion only matters for magic properties... "Plain" properties cannot
// call other code in order to start recursing, and in fact we would get
// stuck looping with a "plain" property.
if ($this->propertyIsMagical($name)) {
// XXX: Due to the structure of the code, we cannot use property_exists()
// (because many of the properties are declared in the class, and the
// magic triggers due them being NULLed), nor can we use isset() (because
// it is implemented as another magic function...).
$vars = get_object_vars($this);
while (isset($vars[$name])) {
$new_value = $this->$name;
unset($this->$name);
parent::__set($name, $new_value);
$vars = get_object_vars($this);
}
}
}
/**
* Inherits.
*
* Calls parent and invokes modified and purged hooks.
*
* @see FedoraDatastream::modifyDatastream()
*/
protected function modifyDatastream(array $args) {
try {
parent::modifyDatastream($args);
islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_MODIFIED_HOOK, $this->parent->models, $this->id, $this->parent, $this);
if ($this->state == 'D') {
islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $this->parent->models, $this->id, $this->parent, $this->id);
}
}
catch (Exception $e) {
watchdog('islandora', 'Failed to modify datastream @dsid from @pid< / br > code: @code< br / > message: @msg', array(
'@pid' => $this->parent->id,
'@dsid' => $this->id,
'@code' => $e->getCode(),
'@msg' => $e->getMessage()), WATCHDOG_ERROR);
throw $e;
}
}
}
class IslandoraFedoraDatastreamVersion extends FedoraDatastreamVersion {
Daniel Aitken
10 years ago