public function saveSort($bookSlug, Request $request)
{
$book = $this->bookRepo->getBySlug($bookSlug);
$this->checkOwnablePermission('book-update', $book);
// Return if no map sent
if (!$request->has('sort-tree')) {
return redirect($book->getUrl());
}
// Sort pages and chapters
$sortedBooks = [];
$updatedModels = collect();
$sortMap = json_decode($request->get('sort-tree'));
$defaultBookId = $book->id;
// Loop through contents of provided map and update entities accordingly
foreach ($sortMap as $bookChild) {
$priority = $bookChild->sort;
$id = intval($bookChild->id);
$isPage = $bookChild->type == 'page';
$bookId = $this->bookRepo->exists($bookChild->book) ? intval($bookChild->book) : $defaultBookId;
$chapterId = $isPage && $bookChild->parentChapter === false ? 0 : intval($bookChild->parentChapter);
$model = $isPage ? $this->pageRepo->getById($id) : $this->chapterRepo->getById($id);
// Update models only if there's a change in parent chain or ordering.
if ($model->priority !== $priority || $model->book_id !== $bookId || $isPage && $model->chapter_id !== $chapterId) {
$isPage ? $this->pageRepo->changeBook($bookId, $model) : $this->chapterRepo->changeBook($bookId, $model);
$model->priority = $priority;
if ($isPage) {
$model->chapter_id = $chapterId;
}
$model->save();
$updatedModels->push($model);
}
// Store involved books to be sorted later
if (!in_array($bookId, $sortedBooks)) {
$sortedBooks[] = $bookId;
}
}
// Add activity for books
foreach ($sortedBooks as $bookId) {
$updatedBook = $this->bookRepo->getById($bookId);
Activity::add($updatedBook, 'book_sort', $updatedBook->id);
}
// Update permissions on changed models
$this->bookRepo->buildJointPermissions($updatedModels);
return redirect($book->getUrl());
}