/**
* Constructs an EntityChange from the given old and new Entity.
*
* @since 0.5
*
* @param string $action The action name
* @param EntityDocument|null $oldEntity
* @param EntityDocument|null $newEntity
* @param array $fields additional fields to set
*
* @return EntityChange
* @throws MWException
*/
public function newFromUpdate($action, EntityDocument $oldEntity = null, EntityDocument $newEntity = null, array $fields = array())
{
if ($oldEntity === null && $newEntity === null) {
throw new MWException('Either $oldEntity or $newEntity must be given');
}
if ($oldEntity === null) {
$oldEntity = $this->entityFactory->newEmpty($newEntity->getType());
$id = $newEntity->getId();
} elseif ($newEntity === null) {
$newEntity = $this->entityFactory->newEmpty($oldEntity->getType());
$id = $oldEntity->getId();
} elseif ($oldEntity->getType() !== $newEntity->getType()) {
throw new MWException('Entity type mismatch');
} else {
$id = $newEntity->getId();
}
// HACK: don't include statements diff, since those are unused and not helpful
// performance-wise to the dispatcher and change handling.
// For a better solution, see T113468.
if ($oldEntity instanceof StatementListHolder) {
$oldEntity->setStatements(new StatementList());
$newEntity->setStatements(new StatementList());
}
$diff = $this->entityDiffer->diffEntities($oldEntity, $newEntity);
/** @var EntityChange $instance */
$instance = self::newForEntity($action, $id, $fields);
$instance->setDiff($diff);
return $instance;
}
/**
* Build the HTML form
*/
private function setForm()
{
$options = array($this->msg('wikibase-entitieswithoutlabel-label-alltypes')->text() => '');
foreach ($this->entityFactory->getEntityTypes() as $type) {
// Messages: wikibase-entity-item, wikibase-entity-property, wikibase-entity-query
$options[$this->msg('wikibase-entity-' . $type)->text()] = $type;
}
$this->getOutput()->addModules('wikibase.special.languageSuggester');
$formDescriptor = array('language' => array('name' => 'language', 'default' => $this->language, 'type' => 'text', 'cssclass' => 'wb-language-suggester', 'id' => 'wb-entitieswithoutpage-language', 'label-message' => 'wikibase-entitieswithoutlabel-label-language'), 'type' => array('name' => 'type', 'options' => $options, 'default' => $this->type, 'type' => 'select', 'id' => 'wb-entitieswithoutpage-type', 'label-message' => 'wikibase-entitieswithoutlabel-label-type'), 'submit' => array('name' => '', 'default' => $this->msg('wikibase-entitieswithoutlabel-submit')->text(), 'type' => 'submit', 'id' => 'wikibase-entitieswithoutpage-submit'));
HTMLForm::factory('inline', $formDescriptor, $this->getContext())->setId('wb-entitieswithoutpage-form')->setMethod('get')->setWrapperLegendMsg($this->legendMsg)->suppressDefaultSubmit()->setSubmitCallback(function () {
// no-op
})->show();
}
/**
* @see ModifyEntity::getAllowedParams
*/
protected function getAllowedParams()
{
return array_merge(parent::getAllowedParams(), array('data' => array(self::PARAM_TYPE => 'text', self::PARAM_REQUIRED => true), 'clear' => array(self::PARAM_TYPE => 'boolean', self::PARAM_DFLT => false), 'new' => array(self::PARAM_TYPE => $this->entityFactory->getEntityTypes())));
}
private function makeDiff($objectId, $revA, $revB)
{
$entityClasses = array(Item::ENTITY_TYPE => 'Wikibase\\DataModel\\Entity\\Item');
$lookup = $this->getEntityRevisionLookup();
$entityFactory = new EntityFactory($entityClasses);
$itemId = new ItemId($objectId);
if ($revA === 0) {
$oldEntity = $entityFactory->newEmpty(Item::ENTITY_TYPE);
} else {
$oldEntity = $lookup->getEntityRevision($itemId, $revA)->getEntity();
}
if ($revB === 0) {
$newEntity = $entityFactory->newEmpty(Item::ENTITY_TYPE);
} else {
$newEntity = $lookup->getEntityRevision($itemId, $revB)->getEntity();
}
$differ = new ItemDiffer();
return $differ->diffEntities($oldEntity, $newEntity);
}
