Placeholders not filled

[Serbel97]

Placeholders are not filled in error message.

{
  "validation_errors": [
    {
      "code": "password_too_short",
      "message": "This password is too short. It must contain at least %(min_length)d characters.",
      "path": [
        "new_password"
      ]
    }
  ]
}

[Serbel97]

Issue

Input error json:

{
    "title": "Validation error!",
    "validation_errors": [
        {
            "code": "invalid",
            "message": "Invalid enum value \"canceled\" passed to <enum 'PaymentStatus'>",
            "path": [
                "payment",
                "status"
            ]
        }
    ]
}

The enum name is wrong — it should expose the actual enum values the field accepts, not only <enum 'PaymentStatus'>.

Current code:

class PatchStatus(Form):
    status = EnumField(enum=Payment.PaymentStatus)

Expected / correct json output should also include the list of allowed values / detail field:

{
    "title": "Validation error!",
    "validation_errors": [
        {
            "code": "invalid",
            "message": "Invalid enum value \"canceled\" passed to <enum 'PaymentStatus'>",
            "detail": "allowed values: ['pending','processing','completed','failed']",
            "path": [
                "payment",
                "status"
            ]
        }
    ]
}