Fix for getting book items

app/Book.php

@@ -33,8 +33,10 @@ class Book extends Model
     {
         $pages = $this->pages()->where('chapter_id', '=', 0)->get();
         $chapters = $this->chapters()->get();
-        $children = $pages->merge($chapters);
-        return $children->sortBy('priority');
+        foreach($chapters as $chapter) {
+            $pages->push($chapter);
+        }
+        return $pages->sortBy('priority');
     }
 
 }

app/Repos/BookRepo.php

@@ -47,8 +47,11 @@ class BookRepo
     public function destroyBySlug($bookSlug)
     {
         $book = $this->getBySlug($bookSlug);
-        foreach($book->children() as $child) {
-            $child->delete();
+        foreach($book->pages as $page) {
+            $page->delete();
+        }
+        foreach($book->chapters as $chapter) {
+            $chapter->delete();
         }
         $book->delete();
     }