silverstripe-framework/src/Forms/LookupField.php
2017-07-03 12:21:47 +12:00

113 lines
2.7 KiB
PHP

<?php
namespace SilverStripe\Forms;
use SilverStripe\ORM\ArrayLib;
use SilverStripe\ORM\FieldType\DBField;
use SilverStripe\ORM\DataObjectInterface;
use SilverStripe\Core\Convert;
/**
* Read-only complement of {@link DropdownField}.
*
* Shows the "human value" of the dropdown field for the currently selected
* value.
*/
class LookupField extends MultiSelectField
{
/** @skipUpgrade */
protected $schemaComponent = 'LookupField';
/**
* @var boolean $readonly
*/
protected $readonly = true;
/**
* Returns a readonly span containing the correct value.
*
* @param array $properties
*
* @return string
*/
public function Field($properties = array())
{
$source = ArrayLib::flatten($this->getSource());
$values = $this->getValueArray();
// Get selected values
$mapped = array();
foreach ($values as $value) {
if (isset($source[$value])) {
$mapped[] = $source[$value];
}
}
// 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 ($this->value && is_string($this->value) && empty($mapped)) {
$mapped = array(trim($this->value));
$values = array();
}
if ($mapped) {
$attrValue = implode(', ', array_values($mapped));
$attrValue = Convert::raw2xml($attrValue);
$inputValue = implode(', ', array_values($values));
} else {
$attrValue = '<i>('._t('SilverStripe\\Forms\\FormField.NONE', 'none').')</i>';
$inputValue = '';
}
$properties = array_merge($properties, array(
'AttrValue' => DBField::create_field('HTMLFragment', $attrValue),
'InputValue' => $inputValue
));
return parent::Field($properties);
}
/**
* Ignore validation as the field is readonly
*
* @param Validator $validator
* @return bool
*/
public function validate($validator)
{
return true;
}
/**
* Stubbed so invalid data doesn't save into the DB
*
* @param DataObjectInterface $record DataObject to save data into
*/
public function saveInto(DataObjectInterface $record)
{
}
/**
* @return LookupField
*/
public function performReadonlyTransformation()
{
$clone = clone $this;
return $clone;
}
public function getHasEmptyDefault()
{
return false;
}
/**
* @return string
*/
public function Type()
{
return "lookup readonly";
}
}