The main point when implementing this is to make sure that methods with a
return type of "object" return something that can be fed to matching() and
all constraint-generating methods (like logicalAnd(), equals(), like(), ...).
This allows for code like
$query->matching($query->equals('foo', 'bar'))->setLimit(10)->execute();
/**
* @test
*/
public function getFirstReturnsNullIfResultSetIsEmptyAndQueryIsNotInitialized()
{
$initializedQueryResult = [];
$queryResult = $this->getAccessibleMock(QueryResult::class, ['dummy'], [$this->query]);
$this->query->expects($this->once())->method('setLimit')->with(1);
$queryResult->injectPersistenceManager($this->persistenceManager);
$mockDataMapper = $this->createMock(DataMapper::class);
$mockDataMapper->expects($this->once())->method('mapToObjects')->with(['one', 'two'])->will($this->returnValue($initializedQueryResult));
$queryResult->injectDataMapper($mockDataMapper);
$this->assertNull($queryResult->getFirst());
}
/**
* @param QueryInterface $query
* @param $nodeTypeFilter
* @return array
*/
protected function getNodeTypeFilterConstraints(QueryInterface $query, $nodeTypeFilter)
{
$includeNodeTypeConstraints = [];
$excludeNodeTypeConstraints = [];
$nodeTypeFilterParts = Arrays::trimExplode(',', $nodeTypeFilter);
foreach ($nodeTypeFilterParts as $nodeTypeFilterPart) {
$nodeTypeFilterPart = trim($nodeTypeFilterPart);
if (strpos($nodeTypeFilterPart, '!') === 0) {
$negate = true;
$nodeTypeFilterPart = substr($nodeTypeFilterPart, 1);
} else {
$negate = false;
}
$nodeTypeFilterPartSubTypes = array_merge([$nodeTypeFilterPart], $this->nodeTypeManager->getSubNodeTypes($nodeTypeFilterPart, false));
foreach ($nodeTypeFilterPartSubTypes as $nodeTypeFilterPartSubType) {
if ($negate === true) {
$excludeNodeTypeConstraints[] = $query->logicalNot($query->equals('nodeType', $nodeTypeFilterPartSubType));
} else {
$includeNodeTypeConstraints[] = $query->equals('nodeType', $nodeTypeFilterPartSubType);
}
}
}
$constraints = $excludeNodeTypeConstraints;
if (count($includeNodeTypeConstraints) > 0) {
$constraints[] = $query->logicalOr($includeNodeTypeConstraints);
}
return $constraints;
}