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Not allowing Empty fields about elm-form HOT 3 CLOSED

etaque avatar etaque commented on July 4, 2024
Not allowing Empty fields

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Comments (3)

etaque avatar etaque commented on July 4, 2024

What does Form.Input.dumpErrors render for this?

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simonh1000 avatar simonh1000 commented on July 4, 2024

dumpErrors provides Version: Empty.

When I first opened this issue I had initFields = [], and then I got Version: InvalidString

Full code at https://github.com/simonh1000/elm-mdbootstrap/blob/master/src/MyForm.elm

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simonh1000 avatar simonh1000 commented on July 4, 2024

OK, so I have now found the emptyString validator (sorry for not noticing that before). I've also withdrawn my PR as it seemed to break things.

But I am left with a question about the string validator

string : Validation e String
string v =
  case Field.asString v of
    Just s ->
      if String.isEmpty s then
        Err Empty
      else
        Ok s

    Nothing ->
      Err InvalidString

It feels to me that this should accept any string, including the empty string (obviating the need for emptyString), and it noneEmpty that should complain about empty strings if called. As things stand nonEmpty appears to be redundant, at least for strings.

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