silverstripe-framework/forms/LookupField.php

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<?php
/**
* Read-only complement of {@link DropdownField}.
* Shows the "human value" of the dropdown field for the currently selected value.
* @package forms
* @subpackage fields-basic
*/
class LookupField extends DropdownField {
protected $readonly = true;
/**
* Returns a readonly span containing the correct value.
*/
function Field() {
if(trim($this->value)) {
$this->value = trim($this->value);
if(is_array($this->source)) {
$mappedValue = isset($this->source[$this->value]) ? $this->source[$this->value] : null;
} else {
$mappedValue = $this->source->getItem($this->value);
}
}
if(!isset($mappedValue)) {
$mappedValue = "<i>(none)</i>";
}
if($this->value) {
$val = $this->dontEscape
? ($this->reserveNL?Convert::raw2xml($this->value):$this->value)
: Convert::raw2xml($this->value);
} else {
$val = '<i>(none)</i>';
}
$valforInput = $this->value
? Convert::raw2att($val)
: "";
return "<span class=\"readonly\" id=\"" . $this->id() .
"\">$mappedValue</span><input type=\"hidden\" name=\"" . $this->name .
"\" value=\"" . $valforInput . "\" />";
}
function performReadonlyTransformation() {
return $this;
}
function Type() {
return "lookup readonly";
}
}
?>