fix: 文章详情推荐文章

app/index/model/ArticleCategoryModel.php

@@ -46,6 +46,17 @@ class ArticleCategoryModel extends ArticleCategoryBaseModel
         $query->where('pid', '=', $parent);
     }
 
+    // 所属子分类范围查询
+    public function scopeChild($query, $id, $merge_self = false)
+    {
+        $query->where(function($q) use($id, $merge_self) {
+            $q->where('pid', '=', $id);
+            if ($merge_self) {
+                $q->whereOr('id', '=', $id);
+            }
+        });
+    }
+
     // 是否显示状态范围查询
     public function scopeIsShow($query, bool $is_show)
     {

app/index/model/ArticleModel.php

@@ -32,6 +32,11 @@ class ArticleModel extends ArticleBaseModel
     // 文章分类范围查询
     public function scopeCategory($query, $category)
     {
+        if (is_null($category)) return;
+        if (is_array($category)) {
+            $query->where('category_id', 'in', $category);
+            return;
+        }
         $query->where('category_id', '=', $category);
     }