Help with Custom Validation Message for "stringNotEqualToField"

[Omkaragrawal]

Hey Everyone,
I was trying to customise the validation message for validation for rule stringNotEqualToField which is a custom rule but couldn't find a way to do it.

Please help

Rule:

    firstName: schema.string({ trim: true }, [
      rules.name({ maxLength: 20 }),
      rules.alpha(),
      rules.stringNotEqualToField({
        fieldToCompare: 'lastName',
      }),
    ]),

Validation Message1:

{
'firstName.stringNotEqualToField': '{{ field }} cannot be equal to {{ options.otherFieldName }}',
}

Validation Message2:

{
'firstName.stringNotEqualToField': '{{ field }}',
}

Validation Message3:

{
'firstName.stringNotEqualToField': 'First name cannot be equal to Last Name,
}

I am unable to customise the bellow message in all the above 3 ways (when tried individually)

Received message:

lastName and firstName cannot be equal

[thetutlage]

It seems like stringNotEqualToField is a custom rule. Can you share the implementation of the rule?

[Omkaragrawal]

Thank you for the reply, yes it is a custom rule and not validation, my bad, I have corrected it. The implementation is as follows:

validator.rule(
  'stringNotEqualToField',
  (
    value: string,
    [options]: Parameters<Rules['stringNotEqualToField']>,
    { field, pointer, arrayExpressionPointer, errorReporter, root },
  ) => {
    if (options.fieldToCompare && root[options.fieldToCompare]) {
      const valueToCompare = root[options.fieldToCompare];
      if (value.toLowerCase() === valueToCompare.toLowerCase()) {
        errorReporter.report(
          pointer,
          'stringNotEqualToField.equal',
          `${options.fieldToCompare} and ${field} cannot be equal`,
          arrayExpressionPointer,
        );
      }
      if (options.checkLength && value.length === 1 && valueToCompare.length === 1) {
        errorReporter.report(
          pointer,
          'stringNotEqualToField.length',
          `Minimum 2 characters required in either ${options.fieldToCompare} or ${field}.`,
          arrayExpressionPointer,
        );
      }
    }
  },
);

This is from a custom project that I have used

[thetutlage]

As you can notice, you are specifying the rule name as stringNotEqualToField.equal and stringNotEqualToField.length when reporting errors to the error reporter.

Therefore, the error messages have to defined using the same name.

{
  "firstName.stringNotEqualToField.equal": "Error message",
  "firstName.stringNotEqualToField.length": "Another error message"
}

[Omkaragrawal]

Thank you, very much, it did solve my problem.