zendframework 2 inputfilter customize default error message

zend-framework2

Solution

try this

$inputFilter->add($factory->createInput(array(
                'name' => 'username',
                'required' => true,
                'filters' => array(
                    array('name' => 'StripTags'),
                    array('name' => 'StringTrim'),
                ),
                'validators' => array(
                    array(
                      'name' =>'NotEmpty', 
                        'options' => array(
                            'messages' => array(
                                \Zend\Validator\NotEmpty::IS_EMPTY => 'Please enter User Name!' 
                            ),
                        ),
                    ),
                    array(
                        'name' => 'StringLength',
                        'options' => array(
                            'encoding' => 'UTF-8',
                            'min' => 4,
                            'max' => 20,
                            'messages' => array(
                                'stringLengthTooShort' => 'Please enter User Name between 4 to 20 character!', 
                                'stringLengthTooLong' => 'Please enter User Name between 4 to 20 character!' 
                            ),
                        ),
                    ),
                ),
            )));

reference

Other validator set

Problem

I am trying to customize the default error message "`Value is required and can't be empty`" in zf2 I am using following code to add customise default error message in validators of inputfilter ``` $inputFilter->add($factory->createInput(array( 'name' => 'username', 'required' => true, 'filters' => array( array('name' => 'StripTags'), array('name' => 'StringTrim'), ), 'validators' => array( array( 'name' => 'StringLength', 'options' => array( 'encoding' => 'UTF-8', 'min' => 4, 'max' => 20, 'messages' => array( 'isEmpty' => 'Please enter User Name between 4 to 20 character!' ), ), ), ), ))); ``` But I am getting following error. ``` Zend\Validator\Exception\InvalidArgumentException File: /home/website/vendor/zendframework/zendframework/library/Zend/Validator/AbstractValidator.php:220 Message: No message template exists for key 'isEmpty' ``` What I am doing wrong? reference

Original source