Fuel form : build fields

form.php

<?php

class Form extends \Fuel\Core\Form {
    
    public function field_template_public($build_field, \Fuel\Core\Fieldset_Field $field, $required) {
        return parent::field_template($build_field, $field, $required);
    }
    
    public function build_field($field) {
        
        if (substr(strtolower(\Inflector::denamespace(get_class($field))), 0, 6) == 'widget') {
            // Widgets build themselves
            return $field->build();
        }
        return parent::build_field($field);
    }
}