Get previous version of property

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Jonatan Grønning

• November 28, 2019 11:36

In some cases it would be useful to be able to retrieve a source entitys previous version of a property. Something similiar to "is_changed", but returning the previous value instead. 

Use case for this is e.g. when you only want to prosess a entity that has changed from a certain value to something else. 

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  Geir Ove Grønmo

  • December 17, 2019 10:06

  What is the use-case you want to use it for?

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  Jonatan Grønning

  • December 17, 2019 10:46

  My use case was that I wanted to run a pipe only if a certain property had changed from a specific value to something else. If any other value, I wanted to discard it. I ended up solving my issue by splitting the pipe in two, but with the previous version it would have been possible in one.

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