ZF2输入滤波器更改消息颜色

Question

I made typical form with ZF2 form and wanted to add validation using ZF2 InputFilter. It was success but the colour of error message is black which is looks strange. I tried to change the colour by using method I've searched like this:

array(
    'name'    =>'NotEmpty',
    'options' => array(
        'messages' => array(
            NotEmpty::IS_EMPTY => '<div style="color:red;">Please enter User Name!</div>'
        ),
    ),
),

But, instead of message's colour changed to red, it showed the tag with style, in other word, just plain HTML. What is the proper way to achieve my need?

Answer 1

Easiest way would be to modify the view helper ;)

Inside your module.config.php

'view_helpers' => [
    'factories' => [
        'formelementerrors' => function($vhm) {
            $fee = new \Zend\Form\View\Helper\FormElementErrors();
            $fee->setAttributes([
                'class' => 'your error classes'
            ]);
            return $fee;
        }
    ]
]

The alternate approach when rendering errors using $this->formElementErrors() would be to add the error classes inside the ViewHelper directly

$this->formElementErrors($element, ['class' => 'my error classes']);