I’m doing the cakephp 5 cms tutorial and I want to use Boostrap 5 form validation.

But I see that the Form Helper does not render the div with error messages for the field’s required and notBlank before submitting the form, that is; Only the div with the error message is rendered after submitting the form and returning me to the view of my form.

Form before send (Not showing the validation error message)

Form before send (Not showing the validation error message)

Form after sent and redirect to form view

Form after sent and redirect to form view

By default the Form Helper creates the input HTML element as follow.

`<?php echo $this->Form->control('title', ['required']); ?>`

output:
<input name="title" type="text" required>

Modify the Form Helper template to show a div class=”invalid-feedback” in the inputContainer and it is already rendered before submitting the form, but the div is empty without the error message.

/vendor/cakephp/cakephp/src/View/Helper/FormHelper.php

`error' => 'My custom error message'`
`'inputContainer' => '<div class="input {{type}}{{required}}">{{content}}<div class="invalid-feedback">{{error}}</div></div>'`

Actually my Form input is shown as follows after modifying the Form Helper:

`<div class="mb-3 form-group text required">
    <label class="form-label" for="title">Title</label>
    <input type="text" name="title" required class="form-control">
    <div class="invalid-feedback"></div>
</div>`

I want the input to be displayed as follows before submitting the form:

`<div class="mb-3 form-group text required">
    <label class="form-label" for="title">Title</label>
    <input type="text" name="title" required class="form-control">
    <div class="invalid-feedback">My custom error message</div>
</div>`

How can I include the error validation message inside my div class=”invalid-feedback” before submitting the form?

I want it to be generated this way from the Form helper since I am going to generate the forms with Bake Console.

Is there a way to make this possible?

I’m usin the Cakephp 5 version 5.0.8

I hope anyone can help me please.
Thank you.