/**
* @param string $action
* @param EntityId $entityId
* @param Diff $diff
* @param array $fields
*
* @return EntityChange
*/
private function newEntityChange($action, EntityId $entityId, Diff $diff, array $fields)
{
/** @var EntityChange $instance */
$instance = new ItemChange($fields);
if (!$instance->hasField('object_id')) {
$instance->setField('object_id', $entityId->getSerialization());
}
if (!$instance->hasField('info')) {
$instance->setField('info', array());
}
// Note: the change type determines how the client will
// instantiate and handle the change
$type = 'wikibase-' . $entityId->getEntityType() . '~' . $action;
$instance->setField('type', $type);
$instance->setDiff($diff);
return $instance;
}
public function changeBackwardsCompatProvider()
{
global $wgDevelopmentWarnings;
//NOTE: Disable developer warnings that may get triggered by
// the B/C code path.
$wgDevelopmentWarnings = false;
\MediaWiki\suppressWarnings();
try {
$cases = array();
// --------
// We may hit a plain diff generated by old code.
// Make sure we can deal with that.
$diff = new Diff();
$change = new ItemChange(array('type' => 'test'));
$change->setDiff($diff);
$cases['plain-diff'] = array($change);
// --------
// Bug T53363: As of commit ff65735a125e, MapDiffer may generate atomic diffs for
// substructures even in recursive mode. Make sure we can handle them
// if we happen to load them from the database or such.
$diff = new ItemDiff(array('links' => new DiffOpChange(array('foowiki' => 'X', 'barwiki' => 'Y'), array('barwiki' => 'Y', 'foowiki' => 'X'))));
// make sure we got the right key for sitelinks
assert($diff->getSiteLinkDiff() !== null);
//NOTE: ItemChange's constructor may or may not already fix the bad diff.
$change = new ItemChange(array('type' => 'test'));
$change->setDiff($diff);
$cases['atomic-sitelink-diff'] = array($change);
$wgDevelopmentWarnings = true;
\MediaWiki\restoreWarnings();
return $cases;
} catch (Exception $ex) {
$wgDevelopmentWarnings = true;
\MediaWiki\restoreWarnings();
throw $ex;
}
}
