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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\DBAL\Types;
use Doctrine\DBAL\ParameterType;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\DBALException;
use function end;
use function explode;
use function get_class;
use function str_replace;
/**
* The base class for so-called Doctrine mapping types.
*
* A Type object is obtained by calling the static {@link getType()} method.
*
* @author Roman Borschel <roman@code-factory.org>
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @since 2.0
*/
abstract class Type
{
const TARRAY = 'array';
const SIMPLE_ARRAY = 'simple_array';
const JSON_ARRAY = 'json_array';
const JSON = 'json';
const BIGINT = 'bigint';
const BOOLEAN = 'boolean';
const DATETIME = 'datetime';
const DATETIME_IMMUTABLE = 'datetime_immutable';
const DATETIMETZ = 'datetimetz';
const DATETIMETZ_IMMUTABLE = 'datetimetz_immutable';
const DATE = 'date';
const DATE_IMMUTABLE = 'date_immutable';
const TIME = 'time';
const TIME_IMMUTABLE = 'time_immutable';
const DECIMAL = 'decimal';
const INTEGER = 'integer';
const OBJECT = 'object';
const SMALLINT = 'smallint';
const STRING = 'string';
const TEXT = 'text';
const BINARY = 'binary';
const BLOB = 'blob';
const FLOAT = 'float';
const GUID = 'guid';
const DATEINTERVAL = 'dateinterval';
/**
* Map of already instantiated type objects. One instance per type (flyweight).
*
* @var array
*/
private static $_typeObjects = [];
/**
* The map of supported doctrine mapping types.
*
* @var array
*/
private static $_typesMap = [
self::TARRAY => ArrayType::class,
self::SIMPLE_ARRAY => SimpleArrayType::class,
self::JSON_ARRAY => JsonArrayType::class,
self::JSON => JsonType::class,
self::OBJECT => ObjectType::class,
self::BOOLEAN => BooleanType::class,
self::INTEGER => IntegerType::class,
self::SMALLINT => SmallIntType::class,
self::BIGINT => BigIntType::class,
self::STRING => StringType::class,
self::TEXT => TextType::class,
self::DATETIME => DateTimeType::class,
self::DATETIME_IMMUTABLE => DateTimeImmutableType::class,
self::DATETIMETZ => DateTimeTzType::class,
self::DATETIMETZ_IMMUTABLE => DateTimeTzImmutableType::class,
self::DATE => DateType::class,
self::DATE_IMMUTABLE => DateImmutableType::class,
self::TIME => TimeType::class,
self::TIME_IMMUTABLE => TimeImmutableType::class,
self::DECIMAL => DecimalType::class,
self::FLOAT => FloatType::class,
self::BINARY => BinaryType::class,
self::BLOB => BlobType::class,
self::GUID => GuidType::class,
self::DATEINTERVAL => DateIntervalType::class,
];
/**
* Prevents instantiation and forces use of the factory method.
*/
final private function __construct()
{
}
/**
* Converts a value from its PHP representation to its database representation
* of this type.
*
* @param mixed $value The value to convert.
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform The currently used database platform.
*
* @return mixed The database representation of the value.
*/
public function convertToDatabaseValue($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 \Doctrine\DBAL\Platforms\AbstractPlatform $platform The currently used database platform.
*
* @return mixed The PHP representation of the value.
*/
public function convertToPHPValue($value, AbstractPlatform $platform)
{
return $value;
}
/**
* Gets the default length of this type.
*
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
*
* @return int|null
*
* @todo Needed?
*/
public function getDefaultLength(AbstractPlatform $platform)
{
return null;
}
/**
* Gets the SQL declaration snippet for a field of this type.
*
* @param array $fieldDeclaration The field declaration.
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform The currently used database platform.
*
* @return string
*/
abstract public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform);
/**
* Gets the name of this type.
*
* @return string
*
* @todo Needed?
*/
abstract public function getName();
/**
* Factory method to create type instances.
* Type instances are implemented as flyweights.
*
* @param string $name The name of the type (as returned by getName()).
*
* @return \Doctrine\DBAL\Types\Type
*
* @throws \Doctrine\DBAL\DBALException
*/
public static function getType($name)
{
if ( ! isset(self::$_typeObjects[$name])) {
if ( ! isset(self::$_typesMap[$name])) {
throw DBALException::unknownColumnType($name);
}
self::$_typeObjects[$name] = new self::$_typesMap[$name]();
}
return self::$_typeObjects[$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 string $className The class name of the custom type.
*
* @return void
*
* @throws \Doctrine\DBAL\DBALException
*/
public static function addType($name, $className)
{
if (isset(self::$_typesMap[$name])) {
throw DBALException::typeExists($name);
}
self::$_typesMap[$name] = $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 isset(self::$_typesMap[$name]);
}
/**
* Overrides an already defined type to use a different implementation.
*
* @param string $name
* @param string $className
*
* @return void
*
* @throws \Doctrine\DBAL\DBALException
*/
public static function overrideType($name, $className)
{
if ( ! isset(self::$_typesMap[$name])) {
throw DBALException::typeNotFound($name);
}
if (isset(self::$_typeObjects[$name])) {
unset(self::$_typeObjects[$name]);
}
self::$_typesMap[$name] = $className;
}
/**
* Gets the (preferred) binding type for values of this type that
* can be used when binding parameters to prepared statements.
*
* This method should return one of the {@link \Doctrine\DBAL\ParameterType} constants.
*
* @return int
*/
public function getBindingType()
{
return ParameterType::STRING;
}
/**
* Gets the types array map which holds all registered types and the corresponding
* type class
*
* @return array
*/
public static function getTypesMap()
{
return self::$_typesMap;
}
/**
* @return string
*/
public function __toString()
{
$e = explode('\\', get_class($this));
return str_replace('Type', '', end($e));
}
/**
* 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
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
*
* @return string
*/
public function convertToDatabaseValueSQL($sqlExpr, AbstractPlatform $platform)
{
return $sqlExpr;
}
/**
* Modifies the SQL expression (identifier, parameter) to convert to a PHP value.
*
* @param string $sqlExpr
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
*
* @return string
*/
public function convertToPHPValueSQL($sqlExpr, $platform)
{
return $sqlExpr;
}
/**
* Gets an array of database types that map to this Doctrine type.
*
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
*
* @return array
*/
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.
*
* @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
*
* @return bool
*/
public function requiresSQLCommentHint(AbstractPlatform $platform)
{
return false;
}
}
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