public function getCMSFields()
{
$fields = parent::getCMSFields();
/*
* MAIN TAB
*/
$tab = 'Root.Main';
//provides listbox field menu for selecting a predefined Icon
$data = DataObject::get('Icon');
$field = new ListboxField('MyIconID', 'My Icon');
$field->setSource($data->map('ID', 'Name')->toArray());
$field->setEmptyString('Select one');
$fields->addFieldToTab($tab, $field);
return $fields;
}
/**
*
* @param Array | SS_Map
*/
public function setSource($source)
{
if ($source instanceof SS_Map) {
$source = $source->toArray();
}
if ($source) {
$hasCommas = array_filter(array_keys($source), create_function('$key', 'return strpos($key, ",") !== FALSE;'));
if ($hasCommas) {
throw new InvalidArgumentException('No commas allowed in $source keys');
}
}
parent::setSource($source);
return $this;
}