[BUG] Validator do not fire even if required

[Dexus]

Describe the bug
The Validator dont fire on ctx.ReadQuery(...)
I was doing it similar to

iris/_examples/request-body/read-json-struct-validation/main.go

Line 2 in 6776bf0

// `ReadJSON`, `ReadXML`, `ReadMsgPack`, `ReadYAML`, `ReadForm`, `ReadQuery`, `ReadBody`.

To Reproduce

type TypeFromTo struct {
	StartDate string `json:"startDate" url:"startDate" param:"startDate" validate:"required,iso_8601_date"`
	EndDate   string `json:"endDate" url:"endDate" param:"endDate" validate:"required,iso_8601_date"`
}

v1.Get("/stats", func(ctx iris.Context) {
	var t TypeFromTo
	err := ctx.ReadQuery(&t)
	// To ignore errors of "required" or when unexpected values are passed to the query,
	// use the iris.IsErrPath.
	// It can be ignored, e.g:
	// if err!=nil && !iris.IsErrPath(err) { ... return }
	//
	// To receive an error on EMPTY query when ReadQuery is called
	// you should enable the `FireEmptyFormError/WithEmptyFormError` ( see below).
	// To check for the empty error you simple compare the error with the ErrEmptyForm, e.g.:
	// err == iris.ErrEmptyForm, so, to ignore both path and empty errors, you do:
	// if err!=nil && err != iris.ErrEmptyForm && !iris.IsErrPath(err) { ctx.StopWithError(...); return }
 	if err != nil {
		// Handle the error, below you will find the right way to do that...

		if errs, ok := err.(validator.ValidationErrors); ok {
			// Wrap the errors with JSON format, the underline library returns the errors as interface.
			validationErrors := wrapValidationErrors(errs)

			// Fire an application/json+problem response and stop the handlers chain.
			ctx.StopWithProblem(iris.StatusBadRequest, iris.NewProblem().
				Title("Validation error").
				Detail("One or more fields failed to be validated").
				Type("/user/validation-errors").
				Key("errors", validationErrors))

			return
		}

		// It's probably an internal JSON error, let's dont give more info here.
		ctx.StopWithStatus(iris.StatusInternalServerError)
		return
  	}
	
	ctx.Json(iris.Map{
		"demo": true,
	})
}

call the url /stats without ?startDate=2024-01-01&endDate=2024-02-01

Expected behavior
If no query parms are there with the names it shoulf fire the errors

Screenshots

Desktop (please complete the following information):

• OS: windows

iris.Version

• main

Additional context

[Dexus]

Hi,

current fix for me is:

var t TypeFromTo
err := ctx.ReadQuery(&t)
if err == nil {
	err = ctx.Application().Validate(t)
}

[Dexus]

ok, forget what I was reporting, forget to set the iris.With....