page = $page; $this->pageRevision = $pageRevision; } public function idExists($id) { return $this->page->where('page_id', '=', $id)->count() > 0; } public function getById($id) { return $this->page->findOrFail($id); } public function getAll() { return $this->page->all(); } public function getBySlug($slug, $bookId) { return $this->page->where('slug', '=', $slug)->where('book_id', '=', $bookId)->first(); } public function newFromInput($input) { $page = $this->page->fill($input); return $page; } public function countBySlug($slug, $bookId) { return $this->page->where('slug', '=', $slug)->where('book_id', '=', $bookId)->count(); } public function destroyById($id) { $page = $this->getById($id); $page->delete(); } public function getBySearch($term, $whereTerms = []) { $terms = explode(' ', preg_quote(trim($term))); $pages = $this->page->fullTextSearch(['name', 'text'], $terms, $whereTerms); // Add highlights to page text. $words = join('|', $terms); //lookahead/behind assertions ensures cut between words $s = '\s\x00-/:-@\[-`{-~'; //character set for start/end of words foreach ($pages as $page) { preg_match_all('#(?<=[' . $s . ']).{1,30}((' . $words . ').{1,30})+(?=[' . $s . '])#uis', $page->text, $matches, PREG_SET_ORDER); //delimiter between occurrences $results = []; foreach ($matches as $line) { $results[] = htmlspecialchars($line[0], 0, 'UTF-8'); } $matchLimit = 6; if (count($results) > $matchLimit) { $results = array_slice($results, 0, $matchLimit); } $result = join('... ', $results); //highlight $result = preg_replace('#' . $words . '#iu', "\$0", $result); if (strlen($result) < 5) { $result = $page->getExcerpt(80); } $page->searchSnippet = $result; } return $pages; } /** * Updates a page with any fillable data and saves it into the database. * @param Page $page * @param $book_id * @param $data * @return Page */ public function updatePage(Page $page, $book_id, $data) { $page->fill($data); $page->slug = $this->findSuitableSlug($page->name, $book_id, $page->id); $page->text = strip_tags($page->html); $page->updated_by = Auth::user()->id; $page->save(); $this->saveRevision($page); return $page; } /** * Saves a page revision into the system. * @param Page $page * @return $this */ public function saveRevision(Page $page) { $lastRevision = $this->getLastRevision($page); if ($lastRevision && ($lastRevision->html === $page->html && $lastRevision->name === $page->name)) { return $page; } $revision = $this->pageRevision->fill($page->toArray()); $revision->page_id = $page->id; $revision->created_by = Auth::user()->id; $revision->save(); // Clear old revisions if ($this->pageRevision->where('page_id', '=', $page->id)->count() > 50) { $this->pageRevision->where('page_id', '=', $page->id) ->orderBy('created_at', 'desc')->skip(50)->take(5)->delete(); } return $revision; } /** * Gets the most recent revision for a page. * @param Page $page * @return mixed */ public function getLastRevision(Page $page) { return $this->pageRevision->where('page_id', '=', $page->id) ->orderBy('created_at', 'desc')->first(); } /** * Gets a single revision via it's id. * @param $id * @return mixed */ public function getRevisionById($id) { return $this->pageRevision->findOrFail($id); } /** * Checks if a slug exists within a book already. * @param $slug * @param $bookId * @param bool|false $currentId * @return bool */ public function doesSlugExist($slug, $bookId, $currentId = false) { $query = $this->page->where('slug', '=', $slug)->where('book_id', '=', $bookId); if ($currentId) { $query = $query->where('id', '!=', $currentId); } return $query->count() > 0; } /** * Gets a suitable slug for the resource * * @param $name * @param $bookId * @param bool|false $currentId * @return string */ public function findSuitableSlug($name, $bookId, $currentId = false) { $slug = Str::slug($name); while ($this->doesSlugExist($slug, $bookId, $currentId)) { $slug .= '-' . substr(md5(rand(1, 500)), 0, 3); } return $slug; } }