<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database;
use InvalidArgumentException;
use PDO;
/**
* Encapsulates all conversion functions for values coming from database into PHP and
* going from PHP into database.
*/
class Type implements TypeInterface
{
/**
* List of supported database types. A human readable
* identifier is used as key and a complete namespaced class name as value
* representing the class that will do actual type conversions.
*
* @var string[]|\Cake\Database\Type[]
*/
protected static $_types = [
'tinyinteger' => 'Cake\Database\Type\IntegerType',
'smallinteger' => 'Cake\Database\Type\IntegerType',
'integer' => 'Cake\Database\Type\IntegerType',
'biginteger' => 'Cake\Database\Type\IntegerType',
'binary' => 'Cake\Database\Type\BinaryType',
'binaryuuid' => 'Cake\Database\Type\BinaryUuidType',
'boolean' => 'Cake\Database\Type\BoolType',
'date' => 'Cake\Database\Type\DateType',
'datetime' => 'Cake\Database\Type\DateTimeType',
'decimal' => 'Cake\Database\Type\DecimalType',
'float' => 'Cake\Database\Type\FloatType',
'json' => 'Cake\Database\Type\JsonType',
'string' => 'Cake\Database\Type\StringType',
'text' => 'Cake\Database\Type\StringType',
'time' => 'Cake\Database\Type\TimeType',
'timestamp' => 'Cake\Database\Type\DateTimeType',
'uuid' => 'Cake\Database\Type\UuidType',
];
/**
* List of basic type mappings, used to avoid having to instantiate a class
* for doing conversion on these.
*
* @var array
* @deprecated 3.1 All types will now use a specific class
*/
protected static $_basicTypes = [
'string' => ['callback' => [Type::class, 'strval']],
'text' => ['callback' => [Type::class, 'strval']],
'boolean' => [
'callback' => [Type::class, 'boolval'],
'pdo' => PDO::PARAM_BOOL,
],
];
/**
* Contains a map of type object instances to be reused if needed.
*
* @var \Cake\Database\Type[]
*/
protected static $_builtTypes = [];
/**
* Identifier name for this type
*
* @var string|null
*/
protected $_name;
/**
* Constructor
*
* @param string|null $name The name identifying this type
*/
public function __construct($name = null)
{
$this->_name = $name;
}
/**
* Returns a Type object capable of converting a type identified by name.
*
* @param string $name type identifier
* @throws \InvalidArgumentException If type identifier is unknown
* @return \Cake\Database\Type
*/
public static function build($name)
{
if (isset(static::$_builtTypes[$name])) {
return static::$_builtTypes[$name];
}
if (!isset(static::$_types[$name])) {
throw new InvalidArgumentException(sprintf('Unknown type "%s"', $name));
}
if (is_string(static::$_types[$name])) {
return static::$_builtTypes[$name] = new static::$_types[$name]($name);
}
return static::$_builtTypes[$name] = static::$_types[$name];
}
/**
* Returns an arrays with all the mapped type objects, indexed by name.
*
* @return array
*/
public static function buildAll()
{
$result = [];
foreach (static::$_types as $name => $type) {
$result[$name] = isset(static::$_builtTypes[$name]) ? static::$_builtTypes[$name] : static::build($name);
}
return $result;
}
/**
* Returns a Type object capable of converting a type identified by $name
*
* @param string $name The type identifier you want to set.
* @param \Cake\Database\Type $instance The type instance you want to set.
* @return void
*/
public static function set($name, Type $instance)
{
static::$_builtTypes[$name] = $instance;
static::$_types[$name] = get_class($instance);
}
/**
* Registers a new type identifier and maps it to a fully namespaced classname,
* If called with no arguments it will return current types map array
* If $className is omitted it will return mapped class for $type
*
* Deprecated 3.6.2:
* - The usage of $type as string[]|\Cake\Database\Type[] is deprecated.
* Use Type::setMap() with string[] instead.
* - Passing $className as \Cake\Database\Type instance is deprecated, use
* class name string only.
* - Using this method as getter is deprecated. Use Type::getMap() instead.
*
* @param string|string[]|\Cake\Database\Type[]|null $type If string name of type to map, if array list of arrays to be mapped
* @param string|\Cake\Database\Type|null $className The classname or object instance of it to register.
* @return array|string|null If $type is null then array with current map, if $className is null string
* configured class name for give $type, null otherwise
*/
public static function map($type = null, $className = null)
{
if ($type === null) {
deprecationWarning(
'Using `Type::map()` as getter is deprecated. ' .
'Use `Type::getMap()` instead.'
);
return static::$_types;
}
if (is_array($type)) {
deprecationWarning(
'Using `Type::map()` to set complete types map is deprecated. ' .
'Use `Type::setMap()` instead.'
);
static::$_types = $type;
return null;
}
if ($className === null) {
deprecationWarning(
'Using `Type::map()` as getter is deprecated. ' .
'Use `Type::getMap()` instead.'
);
return isset(static::$_types[$type]) ? static::$_types[$type] : null;
}
if (!is_string($className)) {
deprecationWarning(
'Passing $className as object to Type::map() is deprecated. ' .
'Use Type::set() instead.'
);
}
static::$_types[$type] = $className;
unset(static::$_builtTypes[$type]);
}
/**
* Set type to classname mapping.
*
* @param string[] $map List of types to be mapped.
* @return void
* @since 3.6.2
*/
public static function setMap(array $map)
{
static::$_types = $map;
static::$_builtTypes = [];
}
/**
* Get mapped class name or instance for type(s).
*
* @param string|null $type Type name to get mapped class for or null to get map array.
* @return array|string|\Cake\Database\TypeInterface|null Configured class name or instance for give $type or map array.
* @since 3.6.2
*/
public static function getMap($type = null)
{
if ($type === null) {
return static::$_types;
}
return isset(static::$_types[$type]) ? static::$_types[$type] : null;
}
/**
* Clears out all created instances and mapped types classes, useful for testing
*
* @return void
*/
public static function clear()
{
static::$_types = [];
static::$_builtTypes = [];
}
/**
* {@inheritDoc}
*/
public function getName()
{
return $this->_name;
}
/**
* {@inheritDoc}
*/
public function getBaseType()
{
return $this->_name;
}
/**
* {@inheritDoc}
*/
public function toDatabase($value, Driver $driver)
{
return $this->_basicTypeCast($value);
}
/**
* Casts given value from a database type to PHP equivalent
*
* @param mixed $value Value to be converted to PHP equivalent
* @param \Cake\Database\Driver $driver Object from which database preferences and configuration will be extracted
* @return mixed
*/
public function toPHP($value, Driver $driver)
{
return $this->_basicTypeCast($value);
}
/**
* Checks whether this type is a basic one and can be converted using a callback
* If it is, returns converted value
*
* @param mixed $value Value to be converted to PHP equivalent
* @return mixed
* @deprecated 3.1 All types should now be a specific class
*/
protected function _basicTypeCast($value)
{
deprecationWarning(
'Using Type::_basicTypeCast() is deprecated. ' .
"The '{$this->_name}' type needs to be updated to implement `TypeInterface`."
);
if ($value === null) {
return null;
}
if (!empty(static::$_basicTypes[$this->_name])) {
$typeInfo = static::$_basicTypes[$this->_name];
if (isset($typeInfo['callback'])) {
return $typeInfo['callback']($value);
}
}
return $value;
}
/**
* {@inheritDoc}
*/
public function toStatement($value, Driver $driver)
{
if ($value === null) {
return PDO::PARAM_NULL;
}
return PDO::PARAM_STR;
}
/**
* Type converter for boolean values.
*
* Will convert string true/false into booleans.
*
* @param mixed $value The value to convert to a boolean.
* @return bool
* @deprecated 3.1.8 This method is now unused.
*/
public static function boolval($value)
{
deprecationWarning('Type::boolval() is deprecated.');
if (is_string($value) && !is_numeric($value)) {
return strtolower($value) === 'true';
}
return !empty($value);
}
/**
* Type converter for string values.
*
* Will convert values into strings
*
* @param mixed $value The value to convert to a string.
* @return string
* @deprecated 3.1.8 This method is now unused.
*/
public static function strval($value)
{
deprecationWarning('Type::strval() is deprecated.');
if (is_array($value)) {
$value = '';
}
return (string)$value;
}
/**
* {@inheritDoc}
*/
public function newId()
{
return null;
}
/**
* {@inheritDoc}
*/
public function marshal($value)
{
return $this->_basicTypeCast($value);
}
/**
* Returns an array that can be used to describe the internal state of this
* object.
*
* @return array
*/
public function __debugInfo()
{
return [
'name' => $this->_name,
];
}
}