Trash

Trash consolidates the logically deleted data of each module and supports search and restore. Every deletion is a soft delete: the record stays in the system and can be restored from Trash, except data that has been permanently purged.

Prerequisites

Item	Content
Menu entry	Manage → Trash
Route	/trash, redirects to /trash/dataset by default
View permission	"View Trash"
Restore permission	"Restore / Empty Trash"
Role scope	The menu is visible to Administrators only, and category counts can also be read by Administrators only
Restore scope for datasets	A dataset in Personal Space requires an Administrator; a dataset in a project requires edit permission on that project

Browsing and Restoring

Data Types

Tabs at the top of the page switch between data types, and each tab shows the number of pending items in that category.

Tab	Data type
Data	Dataset
Users	Account
Project	Project
Collection task	Collection task
Annotation Tasks	Annotation task
Robot	Robot
Device	Device
Cloud	Cloud connection
Plugin	Plugin

Lists and Search

The list is sorted by deletion time in descending order, and search conditions are written into URL query parameters.

Column	Description
ID	Data number
Name	Data name
Created	Data creation time
Deletion time	Soft deletion time
Deleter	Account that performed the deletion
Status	Shown on the "Data" tab only: restorable, or permanently purged
Actions	Restore; for permanently purged data, the purge time is shown

Search condition	Description
Search name	Fuzzy match on name
Deleter	Filter by the account that performed the deletion
Deletion time start / end	Filter by soft deletion time range; the start must not be later than the end

Restore Operations

1. Click "Restore" in the "Actions" column, or select the target rows and click "Batch recovery".
2. Confirm in the confirmation dialog.
3. Verify the result in the original location of the data.

Permanently purged datasets cannot be selected and offer no restore action.

Automatic Purge

The top of the "Data" tab provides automatic purge settings, which apply to datasets only.

Value	Meaning
Never purge (default)	No automatic purge
7 / 30 / 90 / 180 / 365 days	Deleted datasets beyond the retention period are purged

Purges run every day in the early morning, removing the object storage content of the datasets; purged content cannot be restored.

Constraints and Limits

Item	Description
Deletion method	Deletion in each module is a soft delete, and the data enters Trash
Scope of permanent purge	Only the object storage content of datasets is permanently purged
Manual purge	The interface provides no manual permanent purge entry
Automatic purge default	Never purge
Permanently purged	The dataset cannot be restored and its status shows "Permanently purged"
Restoring users or projects	Related permission caches are rebuilt after the restore
Visibility after restore	A dataset returns to its original project and Personal Space, and project membership is unchanged

Troubleshooting

Symptom	Possible cause	Action	Owner
Message "Data has been permanently purged and cannot be restored"	The dataset passed its retention period and was purged automatically	Cannot be restored; collect or upload again	Administrator
Message "Data does not exist or has been restored."	The data was restored, or the record changed	Confirm in the original location of the data	Administrator
Permission error on restore	The dataset belongs to a project and the operator lacks edit permission on that project	Restore as a project member or an Administrator	Administrator
The current page is empty after restore	No data remains on the current page	The system redirects to the previous page, or switch tabs manually	Administrator
Tab count does not match the list	The count is the total pending items of each category	Refresh the page	Administrator

Related Pages

Page	Purpose
Data Management	Dataset search and recovery of accidental deletions
User Management	Accounts and roles
Project Management	Projects and members
System Settings	System parameters