Stream: fhirpath
Topic: rule()
Grahame Grieve (Jul 06 2019 at 21:57):
take this rule, from the snapshot generator tests:
fixture('t43o').snapshot.element.where(id = 'Observation.value[x]:Quantity')).sliceName = 'Quantity'
Grahame Grieve (Jul 06 2019 at 21:57):
if there's no elements that meet the where clause, this passes.
Grahame Grieve (Jul 06 2019 at 21:57):
so I have to also make a rule:
fixture('t43o').snapshot.element.where(id = 'Observation.value[x]:Quantity')).exists()
Grahame Grieve (Jul 06 2019 at 21:58):
but it would be more convenient to do this:
Grahame Grieve (Jul 06 2019 at 21:58):
fixture('t43o').snapshot.element.where(id = 'Observation.value[x]:Quantity')).check(size() = 1).sliceName = 'Quantity'
Grahame Grieve (Jul 06 2019 at 21:59):
where .check([condition]) works like .trace() - returns the focus if the condition passes, else raises an error.
Grahame Grieve (Jul 06 2019 at 22:00):
I don't see that we have a function like that, but it seems like it would be generally useful?
Grahame Grieve (Jul 06 2019 at 22:05):
no should be .check(condition, message)
Last updated: Apr 12 2022 at 19:14 UTC
