/**
* Callback function for comparing sequence blocks.
* The applied criterion for comparison is the </pre>"orderInSequence</pre> property.
*
* @param CurriculumInventorySequenceBlockInterface $a
* @param CurriculumInventorySequenceBlockInterface $b
* @return int One of -1, 0, 1.
*/
public static function compareSequenceBlocksWithOrderedStrategy(CurriculumInventorySequenceBlockInterface $a, CurriculumInventorySequenceBlockInterface $b)
{
if ($a->getOrderInSequence() === $b->getOrderInSequence()) {
return 0;
}
return $a->getOrderInSequence() > $b->getOrderInSequence() ? 1 : -1;
}
/**
* Recursively copies nested sequence blocks for rollover.
*
* @param CurriculumInventorySequenceBlockInterface $block The block to copy.
* @param CurriculumInventoryReportInterface $newReport The new report to roll over into.
* @param CurriculumInventoryAcademicLevelInterface[] $newLevels A map of new academic levels, indexed by level.
* @param CurriculumInventorySequenceBlockInterface|null $newParent The new parent block for this copy.
*/
protected function rolloverSequenceBlock(CurriculumInventorySequenceBlockInterface $block, CurriculumInventoryReportInterface $newReport, array $newLevels, CurriculumInventorySequenceBlockInterface $newParent = null)
{
/* @var CurriculumInventorySequenceBlockInterface $newBlock */
$newBlock = $this->sequenceBlockManager->create();
$newBlock->setReport($newReport);
$newBlock->setAcademicLevel($newLevels[$block->getAcademicLevel()->getLevel()]);
$newBlock->setDescription($block->getDescription());
$newBlock->setEndDate($block->getEndDate());
$newBlock->setStartDate($block->getStartDate());
$newBlock->setChildSequenceOrder($block->getChildSequenceOrder());
$newBlock->setDuration($block->getDuration());
$newBlock->setTitle($block->getTitle());
$newBlock->setOrderInSequence($block->getOrderInSequence());
$newBlock->setMinimum($block->getMinimum());
$newBlock->setMaximum($block->getMaximum());
$newBlock->setTrack($block->hasTrack());
$newBlock->setRequired($block->getRequired());
if ($newParent) {
$newBlock->setParent($newParent);
$newParent->addChild($newBlock);
}
$newReport->addSequenceBlock($newBlock);
$this->sequenceBlockManager->update($newBlock, false, false);
foreach ($block->getChildren() as $child) {
$this->rolloverSequenceBlock($child, $newReport, $newLevels, $newBlock);
}
}
/**
* Reorder the entire sequence if on of the blocks changes position.
* @param int $oldValue
* @param CurriculumInventorySequenceBlockInterface $block
* @param ManagerInterface $manager
* @throws \OutOfRangeException
*/
protected function reorderBlocksInSequenceOnOrderChange($oldValue, CurriculumInventorySequenceBlockInterface $block, ManagerInterface $manager)
{
$parent = $block->getParent();
if (!$parent) {
return;
}
if ($parent->getChildSequenceOrder() !== CurriculumInventorySequenceBlockInterface::ORDERED) {
return;
}
$newValue = $block->getOrderInSequence();
$blocks = $parent->getChildrenAsSortedList();
$blocks = array_filter($blocks, function ($sibling) use($block) {
return $sibling->getId() !== $block->getId();
});
$blocks = array_values($blocks);
$minRange = 1;
$maxRange = count($blocks) + 1;
if ($newValue < $minRange || $newValue > $maxRange) {
throw new \OutOfRangeException("The given order-in-sequence value {$newValue} falls outside the range {$minRange} - {$maxRange}.");
}
if ($oldValue === $newValue) {
return;
}
array_splice($blocks, $block->getOrderInSequence() - 1, 0, [$block]);
for ($i = 0, $n = count($blocks); $i < $n; $i++) {
/* @var CurriculumInventorySequenceBlockInterface $current */
$current = $blocks[$i];
$j = $i + 1;
if ($current->getId() !== $block && $current->getOrderInSequence() !== $j) {
$current->setOrderInSequence($j);
$manager->update($current, false, false);
}
}
}