Default values for non-required fields

[alexweissman]

Still working on the client-side interface, but in the meantime I've come up with something that others might find useful. Basically, the purpose is to allow default values for non-required fields. So, if a $_GET or $_POST array is passed into valitron, it can be easily updated with default values for missing parameters.

Extra function in valitron:

    public function setDefault($field, $defaultValue) {
        if (!isset($this->_fields[$field])){
            $this->_fields[$field] = $defaultValue;
        }
        return true;
    }

Usage:

// Sanitize input data
$get = filter_input_array(INPUT_GET, FILTER_SANITIZE_SPECIAL_CHARS);

// Initialize validation
$v = new Valitron\Validator($get);

// Required fields
$v->rule('required', 'box_id');

// Optional fields with default values
$v->setDefault('title', 'Cool Dude');
$v->setDefault('limit', null);

// Validate!
$v->validate();

// Handle errors
if (count($v->errors()) > 0)
    exit();

// Update input array with any new default values
$get = $v->data();