项目树调整

app/Http/Controllers/API/ProjectController.php

@@ -526,7 +526,7 @@ class ProjectController extends Controller
             // 设置固定的type值
             $project->type = 'project';
             $project->uniId=$project->type.'_'.$project->id;
-            $attachmentArray[$project->id]=[
+            $attachmentArray[$project->id][]=[
                 'parent_id'=>$project->id,
                 'type'=>'attachment',
                 'name'=>'attachment',