Hi,
I upgraded Ignition 8.1.18 to 8.1.38 (perspective).
In one view I have a dashboard with widgets on. I let operators add and remove widgets as they like. When I do changes I take the widgets and do a serialize of the data and stores it to a database. To view the data I do a query on the database and deserialize it. But after the update the builtin 'SerialVersionUID' changed and won't let me deserialize the data. Is there a way to change the 'SerialVersionUID' from a script?
Otherwise could you help me fix this?
Best regards,
Rickard Nordwall
Nope, you're out of luck. (What possessed you to use java serialization for this purpose instead of JSON?)
Consider setting up an empty v8.1.18 gateway in trial mode with a database connection, just so you can run a script that deserializes all of those records, and re-encodes them as JSON (to a new column, presumably).
Thanks for the reply! Sad news but I will try setup a 8.1.18 again and do as you said. The reason for using serialize is unknown it was done before I joined the project, but I guess, if it works it works, was sort of the thought behind it.