protected function satisfyDependencies($dependencies)
{
$required = array();
foreach ($dependencies as $dependency) {
$entity = Entity::loadByUUID($dependency['uuid'], $dependency['entity_type']);
if (!$entity || array_key_exists('force', $dependency) && $dependency['force'] === true) {
$dependency['need revision'] = $dependency['vuuid'];
$dependency['have revision'] = '';
$dependency['have your revision'] = '';
$dependency['required_from_remote'] = true;
$required[] = $dependency;
} else {
// Check the entity tracking table.
$status = publisher_entity_tracking_get_status($entity->uuid(), $entity->type(), $this->remote->name);
$dependency['required'] = false;
$dependency['need revision'] = $dependency['vuuid'];
$dependency['have revision'] = $entity->vuuid();
// Get the revision from their end that we have.
$dependency['have your revision'] = false;
if ($entity->supportsRevisions() && is_array($dependency['revisions'])) {
$dependency['have your revision'] = self::findMatchingRevision($dependency['revisions'], $entity);
}
if (!$status) {
// If the revision information we have matches, create an entry
// in the tracking table and skip it.
if (!$this->compareRevisions($dependency['have revision'], $dependency['need revision'])) {
// Get the last time the entity was modified.
$entity->setRevision($dependency['have revision']);
$date = $this->getModificationDate($dependency['have revision']);
if (!$date) {
if ($entity->supportsRevisions()) {
$entity->setRevision(Entity::getLatestRevisionID($entity->id(), $entity->type()));
}
$date = $entity->getModified();
}
publisher_entity_tracking_create_status($entity, $this->remote, array('date_synced' => REQUEST_TIME, 'changed' => $date));
continue;
}
// Assume that we don't require the latest version by default.
$dependency['required_from_remote'] = array_key_exists('requires_latest', $dependency) ? $dependency['requires_latest'] : false;
$required[] = $dependency;
} else {
if (!$status->date_synced || $this->compareRevisions($status->vuuid, $dependency['need revision']) && $dependency['have your revision'] != $dependency['need revision'] || array_key_exists('source_required', $dependency) && $dependency['source_required']) {
// If the entity has an entry in the entity tracking table, but changes have
// been made to it since the last sync, mark it as changed.
$dependency['required_from_remote'] = array_key_exists('requires_latest', $dependency) ? $dependency['requires_latest'] : false;
$required[] = $dependency;
}
}
}
}
return $required;
}
public function execute(Entity $entity, Remote $remote, array $options, &$context)
{
// Get the transaction from the session.
$transaction_session = TransactionSession::getFromSession();
if (!$transaction_session) {
return;
}
// Prepare the list of entities.
$entities = array();
// Get the dependencies from the entity.
try {
if ($entity->supportsRevisions()) {
$revision = $entity->revision();
$resolver = new RevisionResolver($entity);
} else {
$resolver = new Resolver($entity);
}
$dependencies = $resolver->dependencies();
if (!empty($revision)) {
$entity->setRevision($revision);
}
} catch (ResolverException $ex) {
$message = t('There was an error processing the dependencies for the <strong>:type</strong> <code>:id</code> to the remote. Skipping.', array(':type' => $entity->type(), ':id' => $entity->id()));
drupal_set_message($message, 'error');
watchdog('publisher', $message, array(), WATCHDOG_WARNING);
$this->updateContextMessages($entity, $context);
return;
}
// Optionally mark the item as forced based on the entity type.
$force = array_key_exists('force', $options) ? $options['force'] : false;
drupal_alter('publisher_force_entity', $force, $entity);
// Loop through each of the dependencies and mark them as forced if the options specify.
if ($force) {
foreach ($dependencies as $key => $dependency) {
$dependencies[$key]['force'] = true;
$dependencies[$key]['required'] = true;
}
}
// Mark the root dependency as required if it has a status update.
if (array_key_exists($entity->uuid(), $dependencies)) {
$dependencies[$entity->uuid()]['source_required'] = false;
$status = publisher_entity_tracking_get_status($entity->uuid(), $entity->type(), $remote->name);
if (!$status->date_synced) {
$dependencies[$entity->uuid()]['source_required'] = true;
}
}
// Add the relationships to the transaction session.
if ($resolver->relationships()) {
$relationships = $transaction_session->getRelationships();
foreach ($resolver->relationships() as $relationship) {
$relationships[] = $relationship;
}
$transaction_session->setRelationships($relationships);
}
// Add the metadata to the transaction session.
if ($metadata = $resolver->metadata()) {
$transaction_session->setMetadata($metadata);
}
// Prepare the post data.
$post_data = array('dependencies' => $dependencies);
// Start the transaction.
$transaction = new Transaction($remote);
$response = $transaction->send('begin', $post_data);
if (!$response['success']) {
$message = t('There was an error sending the <strong>:type</strong> <code>:id</code> to the remote. See recent log messages for more details.', array(':type' => $entity->type(), ':id' => $entity->id()));
drupal_set_message($message, 'error');
watchdog('publisher', $message, array(), WATCHDOG_WARNING);
Debug::wd($response);
}
$needs = array();
if (array_key_exists('dependencies', $response)) {
$needs = $response['dependencies'];
}
// Check to see if the receiving server didn't need anything.
if (count($needs) <= 0) {
$message = t('The remote <strong>:remote</strong> already has the latest version of the <strong>:type</strong> <code>:id</code>', array(':remote' => $remote->label, ':type' => $entity->type(), ':id' => $entity->id()));
drupal_set_message($message);
watchdog('publisher', $message);
$this->updateContextMessages($entity, $context);
return;
}
// Make sure each of the needs is valid before adding them to the transaction
// session.
foreach ($needs as $need) {
if (!array_key_exists('uuid', $need) || !array_key_exists('entity_type', $need) || !array_key_exists('need revision', $need) || !array_key_exists('have revision', $need)) {
continue;
}
// Check to see if the entity exists and prepare its payload.
$entity_need = Entity::loadByUUID($need['uuid'], $need['entity_type']);
if (!$entity_need) {
$message = t('One of the entities the destination server needs could not be found. Please check the development log for more details.');
drupal_set_message($message, 'error');
watchdog('publisher', $message, array(), WATCHDOG_WARNING);
Debug::wd($need);
continue;
}
// Generate the payload for the entity.
$entity_need_payload = publisher_compare_revision_uuid($entity_need, $need['have your revision'], $need['need revision']);
if ($entity_need_payload === false) {
$message = t('One or more revisions did not exist for the <strong>:type</strong> <code>:id</code>', array(':type' => $entity_need->type(), ':id' => $entity_need->id()));
drupal_set_message($message, 'error');
watchdog('publisher', $message, array(), WATCHDOG_WARNING);
continue;
}
// Add the entity to the entities list in the transaction session.
$entities[$entity_need->uuid()] = array('entity_type' => $entity_need->type(), 'entity_uuid' => $entity_need->uuid(), 'entity_id' => $entity_need->id(), 'entity_vuuid' => $entity_need->vuuid(), 'have_revision' => $need['have revision'], 'have_your_revision' => $need['have your revision'], 'need_revision' => $need['need revision'], 'required_from_remote' => $need['required_from_remote'], 'original_dependency' => $dependencies[$entity_need->uuid()], 'revisions_payload' => $entity_need_payload);
}
// Add the entities to the transaction session.
$transaction_session->addEntities($entity->uuid(), $entities);
$transaction_session->storeToSession();
// Finally, record the context messages.
$this->updateContextMessages($entity, $context);
}
