silverstripe-framework/forms/LookupField.php
2014-08-19 09:17:15 +12:00

99 lines
2.0 KiB
PHP

<?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 {
/**
* @var boolean $readonly
*/
protected $readonly = true;
/**
* Returns a readonly span containing the correct value.
*
* @param array $properties
*
* @return string
*/
public function Field($properties = array()) {
$source = $this->getSource();
// Normalize value to array to simplify further processing
if(is_array($this->value) || is_object($this->value)) {
$values = $this->value;
} else {
$values = array(trim($this->value));
}
$mapped = array();
if($source instanceof SQLMap) {
foreach($values as $value) {
$mapped[] = $source->getItem($value);
}
} else if($source instanceof ArrayAccess || is_array($source)) {
$source = ArrayLib::flatten($source);
foreach($values as $value) {
if(isset($source[$value])) {
$mapped[] = $source[$value];
}
}
} else {
$mapped = array();
}
// Don't check if string arguments are matching against the source,
// as they might be generated HTML diff views instead of the actual values
if($this->value && !is_array($this->value) && !$mapped) {
$mapped = array(trim($this->value));
$values = array();
}
if($mapped) {
$attrValue = implode(', ', array_values($mapped));
if(!$this->dontEscape) {
$attrValue = Convert::raw2xml($attrValue);
}
$inputValue = implode(', ', array_values($values));
} else {
$attrValue = "<i>(none)</i>";
$inputValue = '';
}
$properties = array_merge($properties, array(
'AttrValue' => $attrValue,
'InputValue' => $inputValue
));
return parent::Field($properties);
}
/**
* @return LookupField
*/
public function performReadonlyTransformation() {
$clone = clone $this;
return $clone;
}
/**
* @return string
*/
public function Type() {
return "lookup readonly";
}
}