1 <?php
 2 /**
 3  * Grouped dropdown, using <optgroup> tags.
 4  * 
 5  * $source parameter (from DropdownField) must be a two dimensional array.
 6  * The first level of the array is used for the <optgroup>, and the second
 7  * level are the <options> for each group.
 8  * 
 9  * Returns a <select> tag containing all the appropriate <option> tags, with
10  * <optgroup> tags around the <option> tags as required.
11  * 
12  * @package forms
13  * @subpackage fields-basic
14  */
15 class GroupedDropdownField extends DropdownField {
16 
17     function Field() {
18         // Initialisations      
19         $options = array();
20         foreach($this->getSource() as $value => $title) {
21             if(is_array($title)) {
22                 //$options .= "<optgroup label=\"$value\">";
23                 $items = array();
24                 foreach($title as $value2 => $title2) {
25                     $selected = ($value2 == $this->value);
26                     //$options .= "<option$selected value=\"$value2\">$title2</option>";
27                     $items[] = new ArrayData(array(
28                         'Value' => $value2,
29                         'Title' => Convert::raw2xml($title2),
30                         'Selected' => $selected,    
31                     ));
32                 }
33                 $options[] = new ArrayData(array(
34                     'Value' => $value,
35                     'Items' => new DataObjectSet($items),                   
36                 )); 
37                 //$options .= "</optgroup>";
38             } else { // Fall back to the standard dropdown field
39                 $selected = ($value == $this->value);
40                 $options[] = new ArrayData(array(
41                     'Value' => $value,
42                     'Title' => Convert::raw2xml($title),
43                     'Selected' => $selected,                    
44                 ));             
45             }
46         }
47         $attributes = array(
48             'class' => ($this->extraClass() ? $this->extraClass() : ''),
49             'id' => $this->id(),
50             'name' => $this->name,
51             'tabindex' => $this->getTabIndex(),         
52         );      
53         if($this->disabled) $attributes['disabled'] = 'disabled';
54         return $this->createTag('select', $attributes, new DataObjectSet($options));
55 
56 
57         return "<select $classAttr name=\"$this->name\" id=\"$id\">$options</select>";
58     }
59 }
60 
61 ?>