Рефакторинг, небольшие улучшения

server/core/DbSearcher.js

@@ -625,14 +625,14 @@ class DbSearcher {
             const rows = await this.restoreBooks('author', [authorId]);
 
             let authorName = '';
-            let books = '';
+            let books = [];
 
             if (rows.length) {
                 authorName = rows[0].name;
                 books = rows[0].books;
             }
 
-            return {author: authorName, books: (books && books.length ? JSON.stringify(books) : '')};
+            return {author: authorName, books};
         } finally {
             this.searchFlag--;
         }
@@ -659,7 +659,7 @@ class DbSearcher {
                 where: `return Array.from(@dirtyIndexLR('value', ${db.esc(series)}, ${db.esc(series)}))`
             });
 
-            let books;
+            let books = [];
             if (rows.length && rows[0].rawResult.length) {
                 //выборка книг серии
                 const bookRows = await this.restoreBooks('series', [rows[0].rawResult[0]])
@@ -668,7 +668,7 @@ class DbSearcher {
                     books = bookRows[0].books;
             }
 
-            return {books: (books && books.length ? JSON.stringify(books) : '')};
+            return {books};
         } finally {
             this.searchFlag--;
         }