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?)
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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.