Zend framework 2 how use validator chains in fieldsets

Question

I need to use validator chains in the getInputFilterSpecification method of the fieldset to use the breakChainOnFailure parameter and get only one error message.

I know make validator chains using InputFilter classes how explain the zend documentation, e.g.

    $input = new Input('foo');
    $input->getFilterChain()
          ->attachByName('stringtrim', true)  //here there is a breakChainOnFailure
          ->attachByName('alpha');

But I want make the same using the factory format. Where can I put the breakChainOnFailure parameter in this sample:

    $factory = new Factory();
    $inputFilter = $factory->createInputFilter(array(
        'password' => array(
            'name'       => 'password',
            'required'   => true,
            'validators' => array(
                array(
                    'name' => 'not_empty',
                ),
                array(
                    'name' => 'string_length',
                ),
            ),
        ),
    ));

score 9 · Answer 1 · answered May 01 '13 at 12:59

To answer your question we need to look at the InputFilter Factory, there we find the populateValidators method. As you can see, for validators it's looking for a break_chain_on_failure key in the spec. You just need to add that to your validator spec array...

$factory = new Factory();
$inputFilter = $factory->createInputFilter(array(
    'password' => array(
        'name'       => 'password',
        'required'   => true,
        'validators' => array(
            array(
                'name' => 'not_empty',
                'break_chain_on_failure' => true,
            ),
            array(
                'name' => 'string_length',
            ),
        ),
    ),
));

By the way, the attachByName method signatures for FilterChain (here) and ValidatorChain (here) are not the same. In your first example you're calling the method on a filter chain, which doesn't support break on failure at all. (you might also note that it's the third parameter of the validator chain method and not the second)

Thanks very much for you help. You are right, my attachByName method example was modified to do the example. I thought were the same case. — josepmra, May 01 '13 at 15:19

score 0 · Answer 2 · answered May 01 '13 at 16:13

Reviewing my code, I would need to use the break_chain_on_failure parameter in a validation chain specification using instances of validator classes (not factory specifications).

view example:

    'password' = array(
        'required' => true,
        'validators' => array(
            new NotEmpty(),  //these are validator instace classes
            new HostName(),  //and them may be declared before
        ),
    );

Zend framework 2 how use validator chains in fieldsets

2 Answers2