<?php
namespace Doctrine\DBAL\Types;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\ParameterType;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use function array_map;
use function get_class;
/**
* The base class for so-called Doctrine mapping types.
*
* A Type object is obtained by calling the static {@link getType()} method.
*/
abstract class Type
{
/**
* The map of supported doctrine mapping types.
*/
private const BUILTIN_TYPES_MAP = [
Types::ARRAY => ArrayType::class,
Types::ASCII_STRING => AsciiStringType::class,
Types::BIGINT => BigIntType::class,
Types::BINARY => BinaryType::class,
Types::BLOB => BlobType::class,
Types::BOOLEAN => BooleanType::class,
Types::DATE_MUTABLE => DateType::class,
Types::DATE_IMMUTABLE => DateImmutableType::class,
Types::DATEINTERVAL => DateIntervalType::class,
Types::DATETIME_MUTABLE => DateTimeType::class,
Types::DATETIME_IMMUTABLE => DateTimeImmutableType::class,
Types::DATETIMETZ_MUTABLE => DateTimeTzType::class,
Types::DATETIMETZ_IMMUTABLE => DateTimeTzImmutableType::class,
Types::DECIMAL => DecimalType::class,
Types::FLOAT => FloatType::class,
Types::GUID => GuidType::class,
Types::INTEGER => IntegerType::class,
Types::JSON => JsonType::class,
Types::OBJECT => ObjectType::class,
Types::SIMPLE_ARRAY => SimpleArrayType::class,
Types::SMALLINT => SmallIntType::class,
Types::STRING => StringType::class,
Types::TEXT => TextType::class,
Types::TIME_MUTABLE => TimeType::class,
Types::TIME_IMMUTABLE => TimeImmutableType::class,
];
/** @var TypeRegistry|null */
private static $typeRegistry;
/**
* @internal Do not instantiate directly - use {@see Type::addType()} method instead.
*/
final public function __construct()
{
}
/**
* Converts a value from its PHP representation to its database representation
* of this type.
*
* @param mixed $value The value to convert.
* @param AbstractPlatform $platform The currently used database platform.
*
* @return mixed The database representation of the value.
*
* @throws ConversionException
*/
public function convertToDatabaseValue($value, AbstractPlatform $platform)
{
return $value;
}
/**
* Converts a value from its database representation to its PHP representation
* of this type.
*
* @param mixed $value The value to convert.
* @param AbstractPlatform $platform The currently used database platform.
*
* @return mixed The PHP representation of the value.
*
* @throws ConversionException
*/
public function convertToPHPValue($value, AbstractPlatform $platform)
{
return $value;
}
/**
* Gets the SQL declaration snippet for a column of this type.
*
* @param mixed[] $column The column definition
* @param AbstractPlatform $platform The currently used database platform.
*
* @return string
*/
abstract public function getSQLDeclaration(array $column, AbstractPlatform $platform);
/**
* Gets the name of this type.
*
* @return string
*
* @todo Needed?
*/
abstract public function getName();
final public static function getTypeRegistry(): TypeRegistry
{
if (self::$typeRegistry === null) {
self::$typeRegistry = self::createTypeRegistry();
}
return self::$typeRegistry;
}
private static function createTypeRegistry(): TypeRegistry
{
$instances = [];
foreach (self::BUILTIN_TYPES_MAP as $name => $class) {
$instances[$name] = new $class();
}
return new TypeRegistry($instances);
}
/**
* Factory method to create type instances.
* Type instances are implemented as flyweights.
*
* @param string $name The name of the type (as returned by getName()).
*
* @return Type
*
* @throws Exception
*/
public static function getType($name)
{
return self::getTypeRegistry()->get($name);
}
/**
* Adds a custom type to the type map.
*
* @param string $name The name of the type. This should correspond to what getName() returns.
* @param class-string<Type> $className The class name of the custom type.
*
* @return void
*
* @throws Exception
*/
public static function addType($name, $className)
{
self::getTypeRegistry()->register($name, new $className());
}
/**
* Checks if exists support for a type.
*
* @param string $name The name of the type.
*
* @return bool TRUE if type is supported; FALSE otherwise.
*/
public static function hasType($name)
{
return self::getTypeRegistry()->has($name);
}
/**
* Overrides an already defined type to use a different implementation.
*
* @param string $name
* @param class-string<Type> $className
*
* @return void
*
* @throws Exception
*/
public static function overrideType($name, $className)
{
self::getTypeRegistry()->override($name, new $className());
}
/**
* Gets the (preferred) binding type for values of this type that
* can be used when binding parameters to prepared statements.
*
* This method should return one of the {@link ParameterType} constants.
*
* @return int
*/
public function getBindingType()
{
return ParameterType::STRING;
}
/**
* Gets the types array map which holds all registered types and the corresponding
* type class
*
* @return string[]
*/
public static function getTypesMap()
{
return array_map(
static function (Type $type): string {
return get_class($type);
},
self::getTypeRegistry()->getMap()
);
}
/**
* Does working with this column require SQL conversion functions?
*
* This is a metadata function that is required for example in the ORM.
* Usage of {@link convertToDatabaseValueSQL} and
* {@link convertToPHPValueSQL} works for any type and mostly
* does nothing. This method can additionally be used for optimization purposes.
*
* @return bool
*/
public function canRequireSQLConversion()
{
return false;
}
/**
* Modifies the SQL expression (identifier, parameter) to convert to a database value.
*
* @param string $sqlExpr
*
* @return string
*/
public function convertToDatabaseValueSQL($sqlExpr, AbstractPlatform $platform)
{
return $sqlExpr;
}
/**
* Modifies the SQL expression (identifier, parameter) to convert to a PHP value.
*
* @param string $sqlExpr
* @param AbstractPlatform $platform
*
* @return string
*/
public function convertToPHPValueSQL($sqlExpr, $platform)
{
return $sqlExpr;
}
/**
* Gets an array of database types that map to this Doctrine type.
*
* @return string[]
*/
public function getMappedDatabaseTypes(AbstractPlatform $platform)
{
return [];
}
/**
* If this Doctrine Type maps to an already mapped database type,
* reverse schema engineering can't tell them apart. You need to mark
* one of those types as commented, which will have Doctrine use an SQL
* comment to typehint the actual Doctrine Type.
*
* @return bool
*/
public function requiresSQLCommentHint(AbstractPlatform $platform)
{
return false;
}
}