Set a property from a "parent" capsule to a "child" capsule

[Brian Crandall]

When working with Conditions, it may be helpful to apply a property from another Condition with larger time frames, e.g. batch procedures, orders, and equipment states.

 

Here is one approach:

$childCondition.transform($cap ->
     $cap.setProperty('Stage', 
          $ParentCondition.toGroup($cap).first().getProperty('Value')
     )
)

$childCondition are the red capsules and ‘Stage’ is the property that you will create with the ‘Value’ property from the green $parentCondition.

[Brian Crandall]

This also works when assigning a value from a Signal to a Capsule property:

$condition.transform($capsule -> 
    $capsule
       .setProperty('Neat Property', $signal.toGroup($capsule).first().getValue())
)

 

[Emily Johnston]

It is also possible to set properties from child capsules to a parent capsule. This is more complex as there could be a variable number of child capsules associated with each parent capsule. Inside the transform, you will pick the desired child capsule (1st, 2nd, 3rd, etc.) and define an alternate capsule with a filler property value to be used if the desired pick does not exist within the parent capsule. 

$parentCondition.removeLongerThan(40h).transform($capsule -> $capsule.setProperty('1st Child Property',
$childCondition.removeLongerThan(40h).toGroup($capsule).pick(1, capsule($capsule.endKey(), $capsule.endKey()).setProperty('Child Property', 'none')).property('Child Property')))

.transform($capsule -> $capsule.setProperty('2nd Child Property',
$childCondition.removeLongerThan(40h).toGroup($capsule).pick(2, capsule($capsule.endKey(), $capsule.endKey()).setProperty('Child Property', 'none')).property('Child Property')))

.transform($capsule -> $capsule.setProperty('3rd Child Property',
$childCondition.removeLongerThan(40h).toGroup($capsule).pick(3, capsule($capsule.endKey(), $capsule.endKey()).setProperty('Child Property', 'none')).property('Child Property')))