fix(api): 修复创建文章500错误和更新文章数据覆盖问题

app/api/controller/Articles.php

@@ -271,27 +271,6 @@ class Articles extends BaseController
             $post_data['content_html'] = $converter->convert($post_data['content'])->getContent();
         }
 
-        // 提供字段默认值，避免数据库严格模式报错
-        $default_fields = [
-            'jump_to_btn_title' => '',
-            'jump_to_url' => '',
-            'jump_to_url_status' => 0,
-            'poster' => '',
-            'desc' => '',
-            'author_name' => '',
-            'hits' => 0,
-            'is_top' => 0,
-            'sort' => 0,
-            'files' => '',
-            'pictures' => '',
-            'tpl_name' => '',
-        ];
-        foreach ($default_fields as $field => $default) {
-            if (!isset($post_data[$field])) {
-                $post_data[$field] = $default;
-            }
-        }
-
         $model_post->save($post_data);
 
         return json_message([], 0, '更新成功');

app/model/Post.php

@@ -269,7 +269,13 @@ class Post extends Base
 
     public function getHitsTitleAttr()
     {
-        $cache_key = static::CACHE_KEY_HITS . $this->getAttr('id');
+        // 新建对象时直接返回 0
+        $id = $this->getData('id');
+        if (empty($id)) {
+            return 0;
+        }
+
+        $cache_key = static::CACHE_KEY_HITS . $id;
 
         $value = Cache::get($cache_key);
 
@@ -277,7 +283,8 @@ class Post extends Base
             return $value;
         }
 
-        $value = $this->getData('hits');
+        // 安全获取：hits 可能尚未存在于 data 中
+        $value = array_key_exists('hits', $this->data) ? $this->data['hits'] : 0;
 
         Cache::set($cache_key, $value, 600);
 
@@ -286,9 +293,14 @@ class Post extends Base
 
     public function setHitsAttr($value)
     {
-        $cache_key = static::CACHE_KEY_HITS . $this->getAttr('id');
+        // 新建对象（无 id）时，直接返回值，跳过缓存操作
+        $id = $this->getData('id');
+        if (empty($id)) {
+            return $value;
+        }
+
+        $cache_key = static::CACHE_KEY_HITS . $id;
 
-        $this->getAttr('hits_title');
         Cache::inc($cache_key);
 
         return $value;