X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/60d0f96cd754a85c637a5f34dcc0341f4ef72a46..refs/pull/1688/head:/app/Entities/Bookshelf.php

diff --git a/app/Entities/Bookshelf.php b/app/Entities/Bookshelf.php
index 745611ba7..7ad2415ed 100644
--- a/app/Entities/Bookshelf.php
+++ b/app/Entities/Bookshelf.php
@@ -104,4 +104,18 @@ class Bookshelf extends Entity
     {
         return $this->books()->where('id', '=', $book->id)->count() > 0;
     }
+
+    /**
+     * Add a book to the end of this shelf.
+     * @param Book $book
+     */
+    public function appendBook(Book $book)
+    {
+       if ($this->contains($book)) {
+           return;
+       }
+
+       $maxOrder = $this->books()->max('order');
+       $this->books()->attach($book->id, ['order' => $maxOrder + 1]);
+    }
 }