fuel/core — pull request #870 by itsash-- (2012-03-13 15:22:20+00:00)
Title: Removing static keyword from radio method.

# Request

Since a recent update when a Model specifies a form type as radio and the options are then parsed using set_options() and error is triggered because an instance of "$this" doesn't exist statically (similarly to the checkbox update).

# Example

```php
protected static $_properties = array(
'visibility' => array(
'data_type' => 'enum',
'label' => 'Visibility',
'default' => '0',
'validation' => array(
'required'
),
'form' => array(
'type' => 'radio', // checkbox is fine (But a radio group is needed).
'options' => array(0 => 'Invisible', 1 => 'Visible')
)
)
);
```