update

app/Http/Controllers/Admin/BookController.php

@@ -149,8 +149,9 @@ class BookController extends BaseController
         // 维护中
         $chart['maintaining'] = Book::where('status', 2)->count();
         // 分类数据
-        dd(Book::get()->implode('category', ','));
+        $category = Book::get()->implode('category', ',');
-        $category = Book::pluck('category')->collapse()->unique()->values();
+        $category = explode(',', $category);
+        $category = array_unique($category);
         return $this->success(compact('chart', 'category', 'list'));
     }