1 <?php
 2 /**
 3  * Read-only complement of {@link DropdownField}.
 4  * Shows the "human value" of the dropdown field for the currently selected value.
 5  * @package forms
 6  * @subpackage fields-basic
 7  */
 8 class LookupField extends DropdownField {
 9 
10     protected $readonly = true;
11     
12     /**
13      * Returns a readonly span containing the correct value.
14      */
15     function Field() {
16         
17         if(trim($this->value) || $this->value === '0') {
18             $this->value = trim($this->value);
19             $source = $this->getSource();
20             if(is_array($source)) {
21                 $mappedValue = isset($source[$this->value]) ? $source[$this->value] : null;
22             } elseif($source instanceof SQLMap) {
23                 $mappedValue = $source->getItem($this->value);
24             }
25         }
26         
27         if(!isset($mappedValue)) $mappedValue = "<i>(none)</i>";
28 
29         if($this->value) {
30             $val = $this->dontEscape
31                 ? ($this->reserveNL?Convert::raw2xml($this->value):$this->value)
32                 : Convert::raw2xml($this->value);
33         } else {
34             $val = '<i>(none)</i>';
35         }
36 
37         $valforInput = $this->value ? Convert::raw2att($val) : "";
38 
39         return "<span class=\"readonly\" id=\"" . $this->id() .
40             "\">$mappedValue</span><input type=\"hidden\" name=\"" . $this->name .
41             "\" value=\"" . $valforInput . "\" />";
42     }
43     
44     function performReadonlyTransformation() {
45         $clone = clone $this;
46         return $clone;
47     }
48 
49     function Type() { 
50         return "lookup readonly";
51     }
52     
53     /**
54      * Override parent behaviour by not merging arrays.
55      */
56     function getSource() {
57         return $this->source;
58     }
59 }
60 
61 ?>