+ $types = ['Page', 'Book', 'Chapter'];
+ $className = str_replace([' ', '-', '_'], '', ucwords($type));
+ if (!in_array($className, $types)) {
+ return null;
+ }
+
+ return app('BookStack\\' . $className);
+ }
+
+ /**
+ * Gets a limited-length version of the entities name.
+ * @param int $length
+ * @return string
+ */
+ public function getShortName($length = 25)
+ {
+ if (strlen($this->name) <= $length) return $this->name;
+ return substr($this->name, 0, $length - 3) . '...';
+ }
+
+ /**
+ * Perform a full-text search on this entity.
+ * @param string[] $fieldsToSearch
+ * @param string[] $terms
+ * @param string[] array $wheres
+ * @return mixed
+ */
+ public function fullTextSearchQuery($terms, $wheres = [])
+ {
+ $exactTerms = [];
+ $fuzzyTerms = [];
+ $search = static::newQuery();
+
+ foreach ($terms as $key => $term) {
+ $term = htmlentities($term, ENT_QUOTES);
+ $term = preg_replace('/[+\-><\(\)~*\"@]+/', ' ', $term);
+ if (preg_match('/".*?"/', $term) || is_numeric($term)) {
+ $term = str_replace('"', '', $term);
+ $exactTerms[] = '%' . $term . '%';
+ } else {
+ $term = '' . $term . '*';
+ if ($term !== '*') $fuzzyTerms[] = $term;
+ }
+ }
+
+ $isFuzzy = count($exactTerms) === 0 && count($fuzzyTerms) > 0;
+
+
+ // Perform fulltext search if relevant terms exist.
+ if ($isFuzzy) {
+ $termString = implode(' ', $fuzzyTerms);
+ $fields = implode(',', $this->fieldsToSearch);
+ $search = $search->selectRaw('*, MATCH(name) AGAINST(? IN BOOLEAN MODE) AS title_relevance', [$termString]);
+ $search = $search->whereRaw('MATCH(' . $fields . ') AGAINST(? IN BOOLEAN MODE)', [$termString]);
+ }
+
+ // Ensure at least one exact term matches if in search
+ if (count($exactTerms) > 0) {
+ $search = $search->where(function ($query) use ($exactTerms) {
+ foreach ($exactTerms as $exactTerm) {
+ foreach ($this->fieldsToSearch as $field) {
+ $query->orWhere($field, 'like', $exactTerm);
+ }
+ }
+ });
+ }
+
+ $orderBy = $isFuzzy ? 'title_relevance' : 'updated_at';
+
+ // Add additional where terms
+ foreach ($wheres as $whereTerm) {
+ $search->where($whereTerm[0], $whereTerm[1], $whereTerm[2]);
+ }
+
+ // Load in relations
+ if ($this->isA('page')) {
+ $search = $search->with('book', 'chapter', 'createdBy', 'updatedBy');
+ } else if ($this->isA('chapter')) {
+ $search = $search->with('book');
+ }
+
+ return $search->orderBy($orderBy, 'desc');