Update SecureStateDriver

[Benio]

How can I update SecureStateDriver?


I had registered SecureStateDriver:

RegisterStateDriver(frame, stateid, conditional);
frame:SetAttribute("_onstate-" ..stateid, [=[
    -- code
]=];

and I want to update conditional and code.

I've tried:

UnregisterStateDriver(frame, stateid);
RegisterStateDriver(frame, stateid, NEW_conditional);
frame:SetAttribute("_onstate-" ..stateid, [=[
    -- NEW code
]=];

However running RegisterStateDriver after UnregisterStateDriver seems setting all conditional values to true until they change their state.
Is it bug, intended, or I am doing something wrong?

[SDPhantom]

Drivers for the same attribute on the same frame should overwrite each other without needing to unregister. What you might be facing is when your new conditional returns the same string that the state is already set to, the OnState function won't run.

[kurapica.igas]

When you doing the RegisterStateDriver, it's not in combat, you can use SecureCmdOptionParse(newcondition) to get the result and run you snippet by yourselves.

[Benio]

Thank you very much. So it turns out that:

• RegisterStateDriver registers SecureStateDriver, but if it's called again with same stateid, it updates its conditional instead.
  That's misleading name that led me to misunderstanding how it works, thanks again for clarifying.
  
  
• UnregisterStateDriver is redundant since RegisterStateDriver can actually update its conditional.
  This allows to remove unregistering part completelly since it's never needed.
  
  
• OnState won't run until conditional changes if it's set already.
  This requires to set "state-" ..stateid out of combat, using SecureCmdOptionParse.

Finally, the following, corrected code works like a charm for both registering and updating SecureStateDriver:

frame:SetAttribute("_onstate-" ..stateid, [=[
    -- code
]=];
RegisterStateDriver(frame, stateid, conditional);
frame:SetAttribute("state-" ..stateid, SecureCmdOptionParse(conditional));