[midPoint] How to compare old with new value in Midpoint

[Pavol Mederly]

Hello Jean Michel,

midPoint transparently works with old and new values, as explained e.g. 
here: 
https://docs.evolveum.com/midpoint/reference/expressions/mappings/mapping-relativity/.

Isn't that sufficient for you? What is the use case where you need to 
explicitly access (compare) old and new values?

--

Just for completeness, midPoint can process rules like "If a user 
property changed from state S1 to state S2, execute action A". The 
states can be specified as concrete values, or using arbitrary expression.

This feature is called "Policy rules". Although it works quite well, it 
is not documented enough (yet). See 
https://docs.evolveum.com/midpoint/reference/roles-policies/policy-rules/.

--

Best regards,

-- 
Pavol Mederly
Software developer
evolveum.com

On 12/08/2022 15:19, Jean Michel Santos via midPoint wrote:
> Hi Community,
>
> In some cases, we need to compare the old and the new value(s) from an attribute to make a decision, I saw that when we're tracing in a mapping, we're able to see both values in the log. However, I don't know yet how to get those values inside a expression or condition and make a way to compare then.
>
> Could you please help me out in this question?
>
> Thanks in advance!
>
> Best Regards,
>
> Jean Michel Santos
> EbZ Tecnologia
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