silverstripe-framework/forms/OptionsetField.php

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<?php
/**
* Set of radio buttons designed to emulate a dropdown.
* It even uses the same constructor as a dropdown field.
*/
class OptionsetField extends DropdownField {
/**
* Creates a new optionset field.
* @param name The field name
* @param title The field title
* @param source An map of the dropdown items
* @param value The current value
* @param form The parent form
*/
function __construct($name, $title = "", $source = array(), $value = "", $form = null) {
parent::__construct($name, $title, $source, $value, $form);
}
/**
* Create a <ul> containing sets of radio buttons and labels. The IDs are set to
* FieldID_ItemKey, where ItemKey is the key with all non-alphanumerics removed.
*/
function Field() {
$options = '';
$odd = 0;
foreach($this->source as $key => $value) {
$itemID = $this->id() . "_" . ereg_replace('[^a-zA-Z0-9]+','',$key);
if($key == $this->value/* || $useValue */) {
$useValue = false;
$checked = " checked=\"checked\"";
} else {
$checked="";
}
$odd = ($odd + 1) % 2;
$extraClass = $odd ? "odd" : "even";
$extraClass .= " val" . str_replace(' ','',$key);
$options .= "<li class=\"".$extraClass."\"><input id=\"$itemID\" name=\"$this->name\" type=\"radio\" value=\"$key\"$checked /> <label for=\"$itemID\">$value</label></li>\n";
}
$id = $this->id();
return "<ul id=\"$id\" class=\"optionset\">\n$options</ul>\n";
}
function performReadonlyTransformation() {
// Source and values are DataObject sets.
$items = $this->source;
$field = new LookupField($this->name,$this->title ? $this->title : "" ,$items,$this->value);
$field->setForm($this->form);
return $field;
}
function ExtraOptions() {
return new DataObjectSet();
}
}
?>