Enum.php in Drupal driver for SQL Server and SQL Azure 8.2
File
drivers/lib/Drupal/Driver/Database/sqlsrv/Component/Enum.php
View source
<?php
namespace Drupal\Driver\Database\sqlsrv\Component;
use UnexpectedValueException;
use ReflectionClass;
use BadMethodCallException;
abstract class Enum {
protected $value;
private static $cache = array();
public function __construct($value) {
if (!$this
->isValid($value)) {
throw new UnexpectedValueException("Value '{$value}' is not part of the enum " . get_called_class());
}
$this->value = $value;
}
public function getValue() {
return $this->value;
}
public function getKey() {
return self::search($this->value);
}
public function __toString() {
return (string) $this->value;
}
public static function keys() {
return array_keys(self::toArray());
}
public static function values() {
$values = array();
foreach (self::toArray() as $key => $value) {
$values[$key] = new static($value);
}
return $values;
}
public static function toArray() {
$class = get_called_class();
if (!array_key_exists($class, self::$cache)) {
$reflection = new ReflectionClass($class);
self::$cache[$class] = $reflection
->getConstants();
}
return self::$cache[$class];
}
public static function isValid($value) {
return in_array($value, self::toArray(), true);
}
public static function isValidKey($key) {
$array = self::toArray();
return isset($array[$key]);
}
public static function search($value) {
return array_search($value, self::toArray(), true);
}
public static function __callStatic($name, $arguments) {
if (defined("static::{$name}")) {
return new static(constant("static::{$name}"));
}
throw new BadMethodCallException("No static method or enum constant '{$name}' in class " . get_called_class());
}
}