html replace field for the upload files module

For the last two versions of the views module I have had the requirement of putting img thumbnails for uploaded files in the returned results. I have solved my problem by hacking the code to add the additional feature of a field where a place holder value gets replaced by the field value. I would really like to see this feature make it into the released version at some point. Here is the code I used, it works for what I need but could use a little refinement for the general public.

file: "handlers/views_handler_field_prerender_list.inc"

find:
$form['empty'] = array(
'#type' => 'textfield',
'#title' => t('Empty list text'),
'#default_value' => $this->options['empty'],
'#description' => t('If the list is empty, you may enter text here that will be displayed.'),
);

append:
+ $form['replace'] = array(
+ '#type' => 'textfield',
+ '#title' => t('Replace Placeholders'),
+ '#default_value' => $this->options['replace'],
+ '#description' => t('If this field is filled in then the value [value] will be replaced with the value of the field.'),
+ );

then a little lower in the file a few additions to the render function:

function render($values) {
$field = $values->{$this->field_alias};
+ if(strlen($this->options['replace']) > 0) {
+ foreach ($this->items[$field] as $key => $value) {
+ $this->items[$field][$key] = str_replace('[value]',$value,$this->options['replace']);
+ }
+ }
if (!empty($this->items[$field])) {
if ($this->options['type'] == 'separator') {
return implode(check_plain($this->options['separator']), $this->items[$field]);
}
else {
return theme('item_list', $this->items[$field], NULL, $this->options['type']);
}
}
else if (!empty($this->options['empty'])) {
return $this->options['empty'];
}
}
}