Content validation fails due to zf2.4 BC issue

[YonmaNBehalf]

zendframework/zendframework#7440 Causes content validation to fail when using a Resource builtin inputFilter object to validate properties not passed as part of a POST payload.
Example:

PUT /my/[:id]
{"property": "value"}

Validator is defined for both property and id. Validation for id is done inside MyResource::update

$this->getInputFilter()->setData(array('id' => $id));

This is done, because my API's id has to pass through a few filters (to perform sanitation, filtering and in some cases manipulation of values).

filter configuration would something like this (in v2.3):

'MyResource\\Validator' => array(
            0 => array(
                'name' => 'id',
                'required' => false,
                'filters' => array(
                    0 => array(
                        'name' => 'Zend\\Filter\\StringTrim',
                        'options' => array(),
                    ),
                    1 => array(
                        'name' => 'MySpecialFilter',
                    ),
                ),
                'validators' => array(
                    1 => array(
                        'name' => 'Zend\\I18n\\Validator\\Alnum',
                        'options' => array(),
                    ),
                ),
                'description' => '',
                'allow_empty' => true,
                'continue_if_empty' => true,
            ),
            1 => array(
                'name' => 'property',
                'required' => false,
                'validators' => array(
                    0 => array(
                        'name' => 'Zend\\Validator\\StringLength',
                        'options' => array(
                            'max' => 255,
                        ),
                    ),
                ),
                'description' => '',
                'allow_empty' => false,
                'continue_if_empty' => false,
            ),
....

According to @bakura10's comment in the above zf2 issue, this issue may not be resolved in zf2 at all.

[weierophinney]

Please see zendframework/zendframework#7474 for a grid detailing how the various combinations of required, allow_empty, and continue_if_empty are intended to work (and how they were fixed to work starting in 2.4.1). Updating to ZF 2.4.1 or later will ensure consistency of operations going forward.