Streamline and stabilise VTL use

[ORogel]

Business case

The use of VTL in questionnaire must be streamlined and stabilised throughout the softwares.

This goal includes:

• streamline the use of conditions: in Pogues, we describe the display condition, but Lunatic is handling a hide condition, thus Eno adds a not operator to every condition written in Pogues.
  • the best way to handle this is to only handle display condition (hence, no more extra negation)
• simplifiy the use of variables: for historic reasons, a $ sign is added at the beginning and the end of a variable name, but really this is only mandatory for controls and not for label.
  • ideally, we would like to get rid of this dollar sign that is not part of VTL
• modify the input number fields to produce VTL NUMBER type: currently, when a scalar response is of number type, a string is returned, designers have to handle this discrepancy (using the cast function).
• it seems reasonable to return a numeric value to VTL expression, it is only a small evolution in Lunatic.
• in Pogues, streamline VTL expression: some expression are between quotes, some are not.

Stack

DDI

Pogues

• VTL editor is not correctly handling simple quotes use Pogues#532

Eno

link to project issues

Lunatic

link to project issues

Progress

describe progress

Release date

here we want to keep track of deadlines; and provide links to milestones

[AnneHuSKa]

@JulienCarmona : si tu veux en faire qq tickets POgues ou mettre de coté pour une refonte ?
On pourra ensuite clore issue

@laurentC35 : les sujets reviennent toujours :-)

[laurentC35]

@JulienCarmona , @lailabent ou @AnneHuSKa
Très bonne idée ça, mais si vous pouvez commencer déjà à dire ce que vous souhaitez comme contrôles sur ce qu'on peut faire (règle VTL, variables, filtres, contrôles, séquence, rond-point, etc...).

J'ai un p'tit projet en tête (api de contrôle de ce que le concepteur a saisie pour commencer)
C'est l'étape 1. de la refonte "petit à petit" 😎