How to add a new column to a custom service entity without losing data

[9年前 に Muhammad Taha によって更新されました。]

Hi All,

I have a custom service already generated using LR SB. now I have to add a new column to the existing entity, data should not be deleted. How can I achieve this??

Thank you
Taha

[9年前 に Pierpaolo Cira によって更新されました。]

Hi,
just add the column and redeploy your server (make sure to first backup your data, because LR deletes your table, then creates new one and refills it with your data).

Another option consists to:
- disable automatic service building ( "build.auto.upgrade=false" inside your service-ext.properties)
- modify and rebuild your service
- modify the table (by hand, adding new column)
- redeploy your plugin

Bye

[9年前 に Muhammad Taha によって更新されました。]

Thank you Cira, Bye.