Use of `GLOBAL_ITERATION_INDEX` to filter a loop

[Romain Tailhurat]

I'm trying to use GLOBAL_ITERATION_INDEX in a condition filter.

The use case is:

• i collect travel information in a standard loop (4 iterations)
• in a linked and paginated loop i display only the 1st and 4th travels.

I have written this condition in Pogues:

GLOBAL_ITERATION_INDEX <> "1" and GLOBAL_ITERATION_INDEX <> "4"

Which translates in Lunatic model as:

"conditionFilter": {
	"type": "VTL",
	"value": "(GLOBAL_ITERATION_INDEX <> \"1\" and GLOBAL_ITERATION_INDEX <> \"4\")"
}

In the TrevasJS storybook, with the translated VTL expression:

(GLOBAL_ITERATION_INDEX <> "1" and GLOBAL_ITERATION_INDEX <> "4")

the following use cases gives:

• {"GLOBAL_ITERATION_INDEX": "2"} => true
• {"GLOBAL_ITERATION_INDEX": "1"} => false

So, given the semantic of the "Except" field in Pogues and the "conditionFilter" object in Lunatic, i should see the 1st and 4th iteration of the loop but i get the opposite! 😓

Why do i do wrong?

Trevas storybook is: https://inseefr.github.io/Trevas-JS/storybook/?path=/story/interpretor--default
Lunatic storybook used is: https://inseefr.github.io/Lunatic/storybook-2.6

Test questionnaire =>
lunatic-725.zip

[Jonathan]

This should work on lunatic 2.6
But it wasn't ported when refactoring the variable system in lunatic 2.7

I'm working on a 2.7 fix

[Romain Tailhurat]

I'm a bit confused, when trying to test on this storybook (Lunatic version is apparently 2.7.0-rc.1) i get another kind of misfunctionning: now, when iterating over the loop, the display of GLOBAL_ITERATION_INDEX is always null. The questionnaire is still the same.

[Romain Tailhurat]

I'm a bit confused, when trying to test on this storybook (Lunatic version is apparently 2.7.0-rc.1) i get another kind of misfunctionning: now, when iterating over the loop, the display of GLOBAL_ITERATION_INDEX is always null. The questionnaire is still the same.

👉 The storybook needs to be updated to 2.7.1, will be done next week.