消息相同图片地址，只要还存在先不删除

app/enterprise/model/File.php

@@ -18,7 +18,8 @@ class File extends BaseModel
             $item = $file->where('file_id', $file_id)->find();
             $Emoji = Emoji::where(['file_id'=>$file_id,'delete_time'=>0])->find();
             $PostsFile = PostsFile::where(['file_id'=>$file_id,'delete_time'=>0])->find();
-            if ($item && !$Emoji && !$PostsFile) {
+            $Message = Message::where(['file_id' => $file_id])->find();
+            if ($item && !$Emoji && !$PostsFile && !$Message) {
                 // 删除文件
                 $filename_dir = root_path();
                 $file_path = $filename_dir . 'public/' . ltrim($item->src,'/');

app/enterprise/model/Message.php

@@ -420,18 +420,10 @@ class Message extends BaseModel
     // 删除消息
     public static function delMsg($is_group = 0)
     {
-        $where = [
-            ['is_group', '=', $is_group],
-            ['file_id', '>', 0]
-        ];
-        $model = new self();
-        $file_id_arr = $model->where($where)->column('file_id');
-        foreach ($file_id_arr as $file_id) {
-            File::syncDelFile($file_id);
-        }
         $res = (new self())->where('is_group',$is_group)->select();
         foreach ($res as $row) {
             $row->force()->delete();
+            File::syncDelFile($row->file_id);
         }
         if ($is_group) {
             $group_id_arr = (new Group())->column('group_id');