pageRepo = $pageRepo; $this->chapterRepo = $chapterRepo; parent::__construct(); } /** * Base query for getting books. * Takes into account any restrictions. * @return mixed */ private function bookQuery() { return $this->restrictionService->enforceBookRestrictions($this->book, 'view'); } /** * Get the book that has the given id. * @param $id * @return mixed */ public function getById($id) { return $this->bookQuery()->findOrFail($id); } /** * Get all books, Limited by count. * @param int $count * @return mixed */ public function getAll($count = 10) { $bookQuery = $this->bookQuery()->orderBy('name', 'asc'); if (!$count) return $bookQuery->get(); return $bookQuery->take($count)->get(); } /** * Get all books paginated. * @param int $count * @return mixed */ public function getAllPaginated($count = 10) { return $this->bookQuery() ->orderBy('name', 'asc')->paginate($count); } /** * Get the latest books. * @param int $count * @return mixed */ public function getLatest($count = 10) { return $this->bookQuery()->orderBy('created_at', 'desc')->take($count)->get(); } /** * Gets the most recently viewed for a user. * @param int $count * @param int $page * @return mixed */ public function getRecentlyViewed($count = 10, $page = 0) { return Views::getUserRecentlyViewed($count, $page, $this->book); } /** * Gets the most viewed books. * @param int $count * @param int $page * @return mixed */ public function getPopular($count = 10, $page = 0) { return Views::getPopular($count, $page, $this->book); } /** * Get a book by slug * @param $slug * @return mixed * @throws NotFoundException */ public function getBySlug($slug) { $book = $this->bookQuery()->where('slug', '=', $slug)->first(); if ($book === null) throw new NotFoundException('Book not found'); return $book; } /** * Checks if a book exists. * @param $id * @return bool */ public function exists($id) { return $this->bookQuery()->where('id', '=', $id)->exists(); } /** * Get a new book instance from request input. * @param array $input * @return Book */ public function createFromInput($input) { $book = $this->book->newInstance($input); $book->slug = $this->findSuitableSlug($book->name); $book->created_by = auth()->user()->id; $book->updated_by = auth()->user()->id; $book->save(); $this->restrictionService->buildEntityPermissionsForEntity($book); return $book; } /** * Update the given book from user input. * @param Book $book * @param $input * @return Book */ public function updateFromInput(Book $book, $input) { $book->fill($input); $book->slug = $this->findSuitableSlug($book->name, $book->id); $book->updated_by = auth()->user()->id; $book->save(); $this->restrictionService->buildEntityPermissionsForEntity($book); return $book; } /** * Destroy the given book. * @param Book $book * @throws \Exception */ public function destroy(Book $book) { foreach ($book->pages as $page) { $this->pageRepo->destroy($page); } foreach ($book->chapters as $chapter) { $this->chapterRepo->destroy($chapter); } $book->views()->delete(); $book->restrictions()->delete(); $this->restrictionService->deleteEntityPermissionsForEntity($book); $book->delete(); } /** * Alias method to update the book permissions in the RestrictionService. * @param Book $book */ public function updateBookPermissions(Book $book) { $this->restrictionService->buildEntityPermissionsForEntity($book); } /** * Get the next child element priority. * @param Book $book * @return int */ public function getNewPriority($book) { $lastElem = $this->getChildren($book)->pop(); return $lastElem ? $lastElem->priority + 1 : 0; } /** * @param string $slug * @param bool|false $currentId * @return bool */ public function doesSlugExist($slug, $currentId = false) { $query = $this->book->where('slug', '=', $slug); if ($currentId) { $query = $query->where('id', '!=', $currentId); } return $query->count() > 0; } /** * Provides a suitable slug for the given book name. * Ensures the returned slug is unique in the system. * @param string $name * @param bool|false $currentId * @return string */ public function findSuitableSlug($name, $currentId = false) { $originalSlug = Str::slug($name); $slug = $originalSlug; $count = 2; while ($this->doesSlugExist($slug, $currentId)) { $slug = $originalSlug . '-' . $count; $count++; } return $slug; } /** * Get all child objects of a book. * Returns a sorted collection of Pages and Chapters. * Loads the bookslug onto child elements to prevent access database access for getting the slug. * @param Book $book * @param bool $filterDrafts * @return mixed */ public function getChildren(Book $book, $filterDrafts = false) { $pageQuery = $book->pages()->where('chapter_id', '=', 0); $pageQuery = $this->restrictionService->enforcePageRestrictions($pageQuery, 'view'); if ($filterDrafts) { $pageQuery = $pageQuery->where('draft', '=', false); } $pages = $pageQuery->get(); $chapterQuery = $book->chapters()->with(['pages' => function($query) use ($filterDrafts) { $this->restrictionService->enforcePageRestrictions($query, 'view'); if ($filterDrafts) $query->where('draft', '=', false); }]); $chapterQuery = $this->restrictionService->enforceChapterRestrictions($chapterQuery, 'view'); $chapters = $chapterQuery->get(); $children = $pages->merge($chapters); $bookSlug = $book->slug; $children->each(function ($child) use ($bookSlug) { $child->setAttribute('bookSlug', $bookSlug); if ($child->isA('chapter')) { $child->pages->each(function ($page) use ($bookSlug) { $page->setAttribute('bookSlug', $bookSlug); }); $child->pages = $child->pages->sortBy(function($child, $key) { $score = $child->priority; if ($child->draft) $score -= 100; return $score; }); } }); // Sort items with drafts first then by priority. return $children->sortBy(function($child, $key) { $score = $child->priority; if ($child->isA('page') && $child->draft) $score -= 100; return $score; }); } /** * Get books by search term. * @param $term * @param int $count * @param array $paginationAppends * @return mixed */ public function getBySearch($term, $count = 20, $paginationAppends = []) { $terms = $this->prepareSearchTerms($term); $books = $this->restrictionService->enforceBookRestrictions($this->book->fullTextSearchQuery(['name', 'description'], $terms)) ->paginate($count)->appends($paginationAppends); $words = join('|', explode(' ', preg_quote(trim($term), '/'))); foreach ($books as $book) { //highlight $result = preg_replace('#' . $words . '#iu', "\$0", $book->getExcerpt(100)); $book->searchSnippet = $result; } return $books; } }