Prevented drafts from showing up in a book sort

Added tests to cover regresssion.
In reference to #100.

@@ -151,7 +151,7 @@ class BookController extends Controller
     {
         $book = $this->bookRepo->getBySlug($bookSlug);
         $this->checkOwnablePermission('book-update', $book);
-        $bookChildren = $this->bookRepo->getChildren($book);
+        $bookChildren = $this->bookRepo->getChildren($book, true);
         $books = $this->bookRepo->getAll(false);
         $this->setPageTitle('Sort Book ' . $book->getShortName());
         return view('books/sort', ['book' => $book, 'current' => $book, 'books' => $books, 'bookChildren' => $bookChildren]);

@@ -198,16 +198,23 @@ class BookRepo extends EntityRepo
      * 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)
+    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) {
+        $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();

@@ -154,10 +154,10 @@ class PageRepo extends EntityRepo
     /**
      * Get a new draft page instance.
      * @param Book $book
-     * @param Chapter|null $chapter
+     * @param Chapter|bool $chapter
      * @return static
      */
-    public function getDraftPage(Book $book, $chapter)
+    public function getDraftPage(Book $book, $chapter = false)
     {
         $page = $this->page->newInstance();
         $page->name = 'New Page';

+<?php
+
+class SortTest extends TestCase
+{
+    protected $book;
+
+    public function setUp()
+    {
+        parent::setUp();
+        $this->book = \BookStack\Book::first();
+    }
+
+    public function test_drafts_do_not_show_up()
+    {
+        $this->asAdmin();
+        $pageRepo = app('\BookStack\Repos\PageRepo');
+        $draft = $pageRepo->getDraftPage($this->book);
+
+        $this->visit($this->book->getUrl())
+            ->see($draft->name)
+            ->visit($this->book->getUrl() . '/sort')
+            ->dontSee($draft->name);
+    }
+
+}
\ No newline at end of file