doc.silverstripe.org/sapphire/forms/SelectionGroup.php
2011-04-10 21:53:26 +00:00

90 lines
2.7 KiB
PHP
Executable File

<?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.
* @package forms
* @subpackage fields-structural
*/
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);
Requirements::css(SAPPHIRE_DIR . '/css/SelectionGroup.css');
}
/**
* Return a readonly version of this field. Keeps the composition but returns readonly
* versions of all the children
*/
public function performDisabledTransformation($trans) {
$newChildren = array();
$clone = clone $this;
if($clone->children) foreach($clone->getChildren() as $idx => $child) {
if(is_object($child)) {
$child = $child->transform($trans);
}
$newChildren[$idx] = $child;
}
$clone->setChildren(new FieldSet($newChildren));
$clone->setReadonly(true);
return $clone;
}
function FieldSet() {
$items = parent::FieldSet()->toArray();
$count = 0;
$firstSelected = $checked ="";
foreach($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(THIRDPARTY_DIR . '/jquery/jquery.js');
Requirements::javascript(SAPPHIRE_DIR . '/javascript/SelectionGroup.js');
Requirements::css(SAPPHIRE_DIR . '/css/SelectionGroup.css');
return $this->renderWith("SelectionGroup");
}
}
?>