silverstripe-framework/forms/SelectionGroup.php

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<?php
/**
* SelectionGroup represents a number of fields that are selectable by a radio button that appears at
* the beginning of each item. Using CSS, you can configure the field to only display its contents if
* the corresponding radio button is selected.
*/
class SelectionGroup extends CompositeField {
/**
* Create a new selection group.
* @param name The field name of the selection group.
* @param items The list of items to show. This should be a map. The keys will be the radio
* button option names, and the values should be the associated field to display. If you want,
* you can make this field a composite field.
*
* If you want to a have a title that is different from the value of the key, you can express it
* as "InternalVal//This is the Title"
*/
function __construct($name, $items) {
$this->name = $name;
parent::__construct($items);
}
function FieldSet() {
$items = parent::FieldSet()->toArray();
if(!$items || !in_array($this->value, array_keys($items))) {
$firstSelected = " class=\"selected\"";
$checked = " checked=\"checked\"";
}
$count = 0;
foreach($items as $key => $item) {
if(strpos($key,'//') !== false) {
list($key,$title) = explode('//', $key,2);
} else {
$title = $key;
}
if($this->value == $key) {
$firstSelected = " class=\"selected\"";
$checked = " checked=\"checked\"";
}
$itemID = $this->ID() . '_' . (++$count);
$extra = array(
"RadioButton" => "<input class=\"selector\" type=\"radio\" id=\"$itemID\" name=\"$this->name\" value=\"$key\"$checked />",
"RadioLabel" => "<label for=\"$itemID\">$title</label>",
"Selected" => $firstSelected,
);
if(is_object($item)) $newItems[] = $item->customise($extra);
else $newItems[] = new ArrayData($extra);
$firstSelected = $checked ="";
}
return new DataObjectSet($newItems);
}
function hasData() {
return true;
}
function FieldHolder() {
Requirements::javascript('jsparty/prototype.js');
Requirements::javascript('jsparty/behaviour.js');
Requirements::javascript('jsparty/prototype_improvements.js');
Requirements::javascript('sapphire/javascript/SelectionGroup.js');
return $this->renderWith("SelectionGroup");
}
}
?>