More expression functions

[olemartinorg]

Description

• Date handling
  • dateIsBefore
  • dateIsBeforeEq
  • dateIsAfter
  • dateIsAfterEq
• String handling
  • stringSlice (previously named `substr here)
  • stringIndexOf (previously called indexOf/strpos here)
  • stringReplace (previously called replace here)
  • upperCaseFirst
  • lowerCaseFirst
• Data element lookups
  • A function to check the number of files/attachments/objects for a given data type in the current instance
• Data model lookups
  • value, just like component but looks up the value for this component (and also returns it even if this component is hidden)
    • EDIT Jan 15th 2025 (@olemartinorg): This function now exists, but it does something else. As I wrote in a comment earlier today, I'm sceptical of expanding the use of hidden components.
  • relDataModel (just a suggestion), a function to look up a relative path in the data model. We'd have to figure out a syntax for relative data model paths, which should be possible to use in future component data model bindings as well (i.e. binding a component in a group to ./FirstName instead of My.Deep.Group.FirstName)
• Options
  • optionLabel - A function that returns the option label for a given option value (should probably only work inside a function with defined options, and probably only something that could work on the frontend). It could probably also work without any arguments, returning the current label (works for radio/dropdown/List, but not checkboxes/multipleselect, as they have multiple options).
    • Tracked in Dynamiske uttrykk: Mulighet til å vise tekst fra skjult felt #1669
  • "hidden" on individual options (mostly when specified in layout)
    • Tracked (and already implemented) in Forhindre gjenbruk av innhold i dropdownliste på tvers av rader i repeterende tabell #1971

Additional Information

• Expressions: New simple functions #1176
• Expressions: List and object support #1179
• Add displayValue function to Expressions. #1208

[olemartinorg]

Diskutert i statusmøte med SSB i dag. De ønsker sterkt replace-funksjonen.

[rvessb]

Diskutert i statusmøte med SSB i dag. De ønsker sterkt replace-funksjonen.
#1305

[olemartinorg]

Pull requests are now being merged:

• Frontend: New expression functions: compare, string functions and more #2961
• Backend: Multiple new expression functions app-lib-dotnet#1067
• Docs (will be merged when released): New expression functions altinn-studio-docs#1983