ZF2 - Need to display specific error message on specific condition failure

问题

I am using ZF2 form validation.I have to validate two fields USERNAME and PASSWORD. everything is working fine but I am getting message like

Please enter username.
Username can not be less than 3 characters.

Please enter password.
Password can not be less than 6 characters.

If user is not entering any value then only this message should display

Please enter username.    
Please enter password.

I don't want do display all the error messages on a field on failure.

Thanks in advance.

回答1:

I got the answer : In order to break the validation chain in ZF2 , we have to use

'break_chain_on_failure' => true

$this->add(
    array(
        'name'       => 'usernmae',
        'required'   => true,
        'filters'    => array(
            array('name' => 'Zend\Filter\StringTrim')
        ),
        'validators' => array(
                          array('name' => 'NotEmpty', 
                            'options' => array('encoding' => 'UTF-8', 
                                'messages' => array(
                                    NotEmpty::IS_EMPTY => 'Please enter username')), 
                            'break_chain_on_failure' => true), 
            array(
                'name'    => 'Zend\Validator\StringLength',
                'options' => array(
                    'encoding' => 'UTF-8',
                    'min'      => 3,
                    'max'      => 30,
                    'messages' => array(
                                    StringLength::TOO_LONG => 'Username can not be more than 30 characters long', 
                                    StringLength::TOO_SHORT => 'Username can not be less than 3 characters.')
                ),
                'break_chain_on_failure' => true
            )
        )
    )
);

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回答2:

Zend_Validate allow you to break validators chain if certain vaildation fails. The second parameter of addValidator() function $breakChainOnFailure should be TRUE in this case.

$validatorChain = new Zend_Validate();    
$validatorChain->addValidator(new Zend_Validate_NotEmpty(), TRUE)
               ->addValidator(new Zend_Validate_StringLength(6, 12));

回答3:

You can also set the 'error_message' key, for example:

'email' => [
                'required' => true,
                'error_message' => 'Incorrect email address ',
                'filters' => [
                    [
                        'name' => 'StripTags',
                    ],
                    [
                        'name' => 'StringToLower',
                    ]
                ],
                'validators' => [
                    [
                        'name' => 'EmailAddress',
                        'break_chain_on_failure' => true
                    ]
                ]
            ],

来源：https://stackoverflow.com/questions/15677863/zf2-need-to-display-specific-error-message-on-specific-condition-failure

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php

zend-framework2