/**
* Reconstructs a property path from a violation path and a form tree.
*
* @param ViolationPath $violationPath The violation path.
* @param FormInterface $origin The root form of the tree.
*
* @return RelativePath The reconstructed path.
*/
private function reconstructPath(ViolationPath $violationPath, FormInterface $origin)
{
$propertyPathBuilder = new PropertyPathBuilder($violationPath);
$it = $violationPath->getIterator();
$scope = $origin;
// Remember the current index in the builder
$i = 0;
// Expand elements that map to a form (like "children[address]")
for ($it->rewind(); $it->valid() && $it->mapsForm(); $it->next()) {
if (!$scope->has($it->current())) {
// Scope relates to a form that does not exist
// Bail out
break;
}
// Process child form
$scope = $scope->get($it->current());
if ($scope->getConfig()->getVirtual()) {
// Form is virtual
// Cut the piece out of the property path and proceed
$propertyPathBuilder->remove($i);
} elseif (!$scope->getConfig()->getMapped()) {
// Form is not mapped
// Set the form as new origin and strip everything
// we have so far in the path
$origin = $scope;
$propertyPathBuilder->remove(0, $i + 1);
$i = 0;
} else {
/* @var \Symfony\Component\Form\Util\PropertyPathInterface $propertyPath */
$propertyPath = $scope->getPropertyPath();
if (null === $propertyPath) {
// Property path of a mapped form is null
// Should not happen, bail out
break;
}
$propertyPathBuilder->replace($i, 1, $propertyPath);
$i += $propertyPath->getLength();
}
}
$finalPath = $propertyPathBuilder->getPropertyPath();
return null !== $finalPath ? new RelativePath($origin, $finalPath) : null;
}
/**
* @expectedException \OutOfBoundsException
*/
public function testRemoveDoesNotAllowNegativeOffsets()
{
$this->builder->remove(-1);
}