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docs(noco-docs-prev): init commit

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Signed-off-by: Wing-Kam Wong <wingkwong.code@gmail.com>
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Wing-Kam Wong
2022-04-04 13:07:10 +08:00
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---
title: 'Metadata'
description: 'Metadata'
position: 600
category: 'Product'
menuTitle: 'Metadata'
---
To go to the Meta Management Portal, click ``Project Metadata`` under ``Settings`` on the leftmost menu.
![image](https://user-images.githubusercontent.com/35857179/126929430-1ad086a8-0611-4f39-8c7f-580637574056.png)
## Project Metadata
The metadata is stored in meta directory in project level, database level, and API level.
Under ``Project Metadata``, you can perform the following operations.
- Export all metadata from the meta tables to meta directory
- Import all metadata from the meta directory to meta tables
- Export project meta to zip file and download
- Import project meta zip file and restart
- Clear all metadata from meta tables
<alert>
Import won't work with zip files exported from the older version of apps (< 0.11.6). <br>
Import / Export will only transfer metadata and files related to the project and not any table data in the project.
</alert>
## Migration example
### Export metadata
Source project : Under ``Meta Management`` tab, select ``Export zip``, click ``Submit``. This step extracts project metadata and stores it in compressed (zip) format
![meta-dev](https://user-images.githubusercontent.com/86527202/130780497-89578bd0-a417-468a-92d8-88c5c07a72b0.png "Step-Export")
### Import metadata
Destination project : Under ``Meta Management`` tab, select ``Import zip``, select ``meta.zip`` file stored in previous step. This step imports project metadata from compressed file (zip) selected and restarts project.
![meta-prod](https://user-images.githubusercontent.com/86527202/130781015-3477e596-b1bc-4189-9853-bfd850157ba8.png)
---
## Database Metadata
Under ``DB Metadata``, You can manage your models. For example, if you do not want to expose some APIs, you can untick those under APIs here.
![image](https://user-images.githubusercontent.com/35857179/127611038-a10ccee5-72ca-42cf-a55b-c8268c9fbe5c.png)
The relations of all tables are listed under ``Relations``.
![image](https://user-images.githubusercontent.com/35857179/127611116-0289f739-bad7-45a0-b2bd-bfd8565f50b8.png)
## UI Access Control
You can control the access to each table and relation by roles.
![image](https://user-images.githubusercontent.com/35857179/127611188-339de6ca-e648-47c0-a358-eee0d03ae9d0.png)
![image](https://user-images.githubusercontent.com/35857179/127611237-5c43e194-a8ba-4e33-b473-5b690a38e80d.png)