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This commit is contained in:
therselman 2017-07-14 21:32:44 +02:00
parent e505593501
commit 81b53f7da9
6 changed files with 635 additions and 1 deletions
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2
src/Table.php → src/DBAL/Table.php
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@ -20,6 +20,6 @@ class Table
public static function build($db, string $table)
{
echo 'Build ' . $table;
}
}

129
src/DBAL/Types/Array.php Normal file
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@ -0,0 +1,129 @@
<?php
/**
* Immutable!
*/
namespace Twister\DBAL\Types;
class Array extends Type implements \Iterator, \Countable, \ArrayAccess
{
protected $members = null;
function __construct($type, $default, $nullable, array $members)
{
$this->type = $type;
$this->default = $default;
$this->nullable = $nullable;
$this->members = &$members; // array_combine($a, $b)
// eg. enum('','collection','macrolanguage','ancient','family')
// $this->array = explode('\',\'', substr($fd['Type'], strlen($intrinsic) + 2, -2)); // plus 2 because we need to skip `('` and minus 2 because we have to skip the last 2 chars: `')`
// RegExp versions:
// preg_match_all('/\'(.*?)\'/', $matches);
// preg_match_all('/(?<=[(,])([^,)]+)(?=[,)])/', $string, $matches);
// $enumArray = explode(",", str_replace("'", "",preg_replace("/enum\((.+)\)/", "\\1", $enumString)));
// $this->array = $matches[1];
}
/**
* Iterator interface
*/
public function rewind()
{
return reset($this->members);
}
public function current()
{
return current($this->members);
}
public function key()
{
return key($this->members);
}
public function next()
{
return next($this->members);
}
public function valid()
{
return key($this->members) !== null;
}
/**
* Countable interface
*/
public function count()
{
return count($this->members);
}
// WARNING: I think I should switch the definition of `get`,
// if we query $obj['my_enum_value'] I think it should return the Enum index number ?
/**
* ArrayAccess interface
*/
public function offsetGet($idx) // eg. var_dump($obj['two']);
{
return $this->members[$idx];
}
public function offsetSet($idx, $value) // eg. $obj['two'] = 'A value';
{
throw new \Exception('Cannot set an Array Type value! This object is Immutable!');
$this->members[$idx] = $value;
}
public function offsetExists($idx) // eg. isset($obj['two'])
{
return isset($this->members[$idx]);
}
public function offsetUnset($idx) // eg. unset($obj['two']);
{
throw new \Exception('Cannot unset an Array Type value! This object is Immutable!');
unset($this->members[$idx]);
}
/**
* Test if a value is part of the Enum or Set
* This function is case-sensitive!
* TODO: Sets can include multiple values eg. VALUE1 | VALUE2 etc.
* We need to validate the whole set!
*/
function isValid(string $value, bool $casesensitive = true)
{
static $combined = null;
if ($combined === null) {
$combined = array_combine($this->members, $this->members);
}
return isset($combined[$value]);
}
function getArray()
{
return $this->members;
}
function toArray()
{
return $this->members;
}
function getIndex($needle)
{
if (is_scalar($needle))
return array_search($needle, $this->members); // Note: `If needle is a string, the comparison is done in a case-sensitive manner.`
else if (is_array($needle))
return array_keys($this->members, $needle, $this->members); // Note: `To return the keys for all matching values, use array_keys() with the optional search_value parameter instead.`
var_dump($needle);
trigger_error('Invalid data type passed to getIndex()', E_USER_ERROR);
}
function toSQL(&$value)
{
return value;
}
}

28
src/DBAL/Types/Float.php Normal file
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@ -0,0 +1,28 @@
<?php
/**
* Immutable!
*/
namespace Twister\DBAL\Types;
class Float extends Type
{
public $decimals = null;
// public $unsigned = null; // do we really need this ??? Could be implemented inside the entity classes! I think MySQL STILL accepts negatives anyway!
// we will likely only make a generic `float` wrapper, which wouldn't know that this value is unsigned !?!? But the entities WILL!
function __construct($type, $default, $nullable, $decimals)
{
$this->type = $type;
$this->default = $default;
$this->nullable = $nullable;
$this->decimals = $decimals;
}
function isValid($value)
{
return parent::isValid($value) && is_numeric($value);
}
}

82
src/DBAL/Types/Integer.php Normal file
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@ -0,0 +1,82 @@
<?php
/**
* Immutable!
*/
namespace Twister\DBAL\Types;
class Integer extends Type
{
public $min = null;
public $max = null;
// public $auto_increment = null;
public function __construct($type, $default, $nullable, $min, $max)
{
$this->type = $type;
$this->default = $default;
$this->nullable = $nullable;
$this->min = $min;
$this->max = $max;
}
public function isUnsigned()
{
return $this->min >= 0;
}
public function filter($value)
{
return isset($value) && is_numeric($value) ? min(max($value, $this->min), $this->max) : ($this->nullable ? $this->default : (is_null($this->default) ? 0 : $this->default));
}
// MAIN function of integers!
// This function will ALWAYS return a VALID value for the field!
// Either a NULL (if valid for the field), or ZERO or clamped to range!
public function clamp($value)
{
return isset($value) && is_numeric($value) ? min(max($value, $this->min), $this->max) : ($this->default ?: ($this->nullable ? null : 0));
}
public function getMin()
{
return $this->min;
}
public function getMax()
{
return $this->max;
}
public function isUnsigned()
{
return $this->min >= 0;
}
public function getRange()
{
return [$this->min, $this->max];
}
/*
function isAutoIncrement()
{
return $this->flags & MYSQLI_AUTO_INCREMENT_FLAG;
}
*/
public function __invoke($value)
{
return $this->is($value);
}
public function is()
{
return is_null($value) && $this->nullable || is_numeric($value) && $value >= $this->min && $value <= $this->max;
}
function isValid($value)
{
return $this->is($value);
}
}

41
src/DBAL/Types/String.php Normal file
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@ -0,0 +1,41 @@
<?php
/**
* Immutable!
*/
namespace Twister\DBAL\Types;
class String extends Type
{
const CHARSET_BINARY = 0; // unused (the charset of BINARY fields is NULL!) ... we need to put BINARY data types inside string, for the maxlength ...
const CHARSET_LATIN1 = 1;
const CHARSET_UTF8 = 3;
const CHARSET_UTF8MB4 = 4;
// const CHARSET_UTF16 = 16; // unused
// const CHARSET_UTF32 = 32; // unused
public $maxlength = null;
public $charset = null;
// public $binary = null; // needed? could be set by collation type: `utf8_bin` or data type `binary` ???
function __construct($type, $default, $nullable, $maxlength, $charset)
{
$this->type = $type;
$this->default = $default;
$this->nullable = $nullable;
$this->maxlength = $maxlength;
$this->charset = $charset;
}
function isValid($value)
{
return parent::isValid($value) && is_scalar($value) && strlen($value) <= $length;
}
function toSQL(&$value)
{
return $value;
}
}

354
src/DBAL/Types/Type.php Normal file
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@ -0,0 +1,354 @@
<?php
/**
* Immutable!
*/
namespace Twister\DBAL\Types;
class Type // AKA Type (Doctrine), Primitive, Core
{
const TYPE_INT = 0;
const TYPE_TINYINT = 1;
const TYPE_SMALLINT = 2;
const TYPE_MEDIUMINT = 3;
const TYPE_BIGINT = 4;
const TYPE_BIT = 5;
const TYPE_FLOAT = 6;
const TYPE_DOUBLE = 7; // AKA REAL
const TYPE_DECIMAL = 8;
const TYPE_NUMERIC = 9; // `In MySQL, DECIMAL(M,D) and NUMERIC(M,D) are the same, and both have a precision of exactly M digits.`
const TYPE_TIMESTAMP = 10;
const TYPE_DATETIME = 11;
const TYPE_DATE = 12;
const TYPE_TIME = 13;
const TYPE_YEAR = 14;
const TYPE_VARCHAR = 15; // AKA NVARCHAR
const TYPE_CHAR = 16;
const TYPE_BLOB = 17;
const TYPE_TINYBLOB = 18;
const TYPE_MEDIUMBLOB = 19;
const TYPE_LONGBLOB = 20;
const TYPE_TEXT = 21;
const TYPE_TINYTEXT = 22;
const TYPE_MEDIUMTEXT = 23;
const TYPE_LONGTEXT = 24;
const TYPE_BINARY = 25;
const TYPE_VARBINARY = 26;
const TYPE_ENUM = 27;
const TYPE_SET = 28;
static $primitives = [ 'int',
'tinyint',
'smallint',
'mediumint',
'bigint',
'bit',
'float',
'double',
'decimal',
'numeric',
'timestamp',
'datetime',
'date',
'time',
'year',
'varchar',
'char',
'blob',
'tinyblob',
'mediumblob',
'longblob',
'text',
'tinytext',
'mediumtext',
'longtext',
'binary',
'varbinary',
'enum',
'set'
];
public $type = null;
public $default = null;
public $nullable = null;
// $flags = null; // We might have to use `flags` if we want to support more than just `nullable` eg. `binary`, `primary_key`, `unique_key`, `unsigned`, `auto_increment` etc.
/*
static $flag_types = array(
MYSQLI_NUM_FLAG => 'numeric', // Field is defined as NUMERIC
MYSQLI_PART_KEY_FLAG => 'part_key', // Field is part of an multi-index
MYSQLI_SET_FLAG => 'set', // Field is defined as SET
MYSQLI_TIMESTAMP_FLAG => 'timestamp', // Field is defined as TIMESTAMP
MYSQLI_AUTO_INCREMENT_FLAG => 'auto_increment', // Field is defined as AUTO_INCREMENT
MYSQLI_ENUM_FLAG => 'enum', // Field is defined as ENUM. Available since PHP 5.3.0.
MYSQLI_BINARY_FLAG => 'binary', // Field is defined as BINARY. Available since PHP 5.3.0.
MYSQLI_GROUP_FLAG => 'group_by', // Field is part of GROUP BY
MYSQLI_ZEROFILL_FLAG => 'zerofill', // Field is defined as ZEROFILL
MYSQLI_UNSIGNED_FLAG => 'unsigned', // Field is defined as UNSIGNED
MYSQLI_BLOB_FLAG => 'blob', // Field is defined as BLOB
MYSQLI_MULTIPLE_KEY_FLAG => 'multiple_key', // Field is part of an index.
MYSQLI_UNIQUE_KEY_FLAG => 'unique_key', // Field is part of a unique index.
MYSQLI_PRI_KEY_FLAG => 'primary_key', // Field is part of a primary index
MYSQLI_NOT_NULL_FLAG => 'not_null' // Indicates that a field is defined as NOT NULL
);
// alternative
const FLAG_NULLABLE = MYSQLI_NOT_NULL_FLAG;
const FLAG_PRIMARY_KEY = MYSQLI_PRI_KEY_FLAG;
const FLAG_UNIQUE = MYSQLI_UNIQUE_KEY_FLAG;
const FLAG_INDEX = MYSQLI_MULTIPLE_KEY_FLAG; // or MYSQLI_PART_KEY_FLAG ???
const FLAG_AUTO = MYSQLI_AUTO_INCREMENT_FLAG;
const FLAG_UNSIGNED = MYSQLI_UNSIGNED_FLAG;
*/
// public $validator = null; // callback funtion! AKA $valid ... or we make `valid()` a function we call which internally calls this function!?!?
// public $escape = null; // callback funtion!
// public $range = null; // can be: array(0, 255) ... or an array of enums eg. array('US','UK','DE','FR') etc. AKA dimentions AKA attributes AKA properties
// public $value = null; // do we store the value here ??? NO ... we don't need ALL this shit for each value, this class will be used in the (entity) model for each column!
/*
static $intrinsics = array(
MYSQLI_TYPE_DECIMAL => 'decimal', // Field is defined as DECIMAL
MYSQLI_TYPE_NEWDECIMAL => 'numeric', // Precision math DECIMAL or NUMERIC field (MySQL 5.0.3 and up)
MYSQLI_TYPE_BIT => 'bit', // Field is defined as BIT (MySQL 5.0.3 and up)
MYSQLI_TYPE_TINY => 'tinyint', // Field is defined as TINYINT
MYSQLI_TYPE_SHORT => 'smallint', // Field is defined as SMALLINT
MYSQLI_TYPE_LONG => 'int', // Field is defined as INT
MYSQLI_TYPE_FLOAT => 'float', // Field is defined as FLOAT
MYSQLI_TYPE_DOUBLE => 'double', // Field is defined as DOUBLE
MYSQLI_TYPE_NULL => 'null', // Field is defined as DEFAULT NULL
MYSQLI_TYPE_TIMESTAMP => 'timestamp', // Field is defined as TIMESTAMP
MYSQLI_TYPE_LONGLONG => 'bigint', // Field is defined as BIGINT
MYSQLI_TYPE_INT24 => 'mediumint', // Field is defined as MEDIUMINT
MYSQLI_TYPE_DATE => 'date', // Field is defined as DATE
MYSQLI_TYPE_TIME => 'time', // Field is defined as TIME
MYSQLI_TYPE_DATETIME => 'datetime', // Field is defined as DATETIME
MYSQLI_TYPE_YEAR => 'year', // Field is defined as YEAR
MYSQLI_TYPE_NEWDATE => 'date', // Field is defined as DATE
MYSQLI_TYPE_ENUM => 'enum', // Field is defined as ENUM
MYSQLI_TYPE_SET => 'set', // Field is defined as SET
MYSQLI_TYPE_TINY_BLOB => 'tinyblob', // Field is defined as TINYBLOB
MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob', // Field is defined as MEDIUMBLOB
MYSQLI_TYPE_LONG_BLOB => 'longblob', // Field is defined as LONGBLOB
MYSQLI_TYPE_BLOB => 'blob', // Field is defined as BLOB (& TEXT)
MYSQLI_TYPE_VAR_STRING => 'varchar', // Field is defined as VARCHAR
MYSQLI_TYPE_STRING => 'char', // Field is defined as CHAR or BINARY
// MySQL returns MYSQLI_TYPE_STRING for CHAR
// and MYSQLI_TYPE_CHAR === MYSQLI_TYPE_TINY
// so this would override TINYINT and mark all TINYINT as string
// https://sourceforge.net/p/phpmyadmin/bugs/2205/
MYSQLI_TYPE_CHAR => 'tinyint', // Field is defined as TINYINT. For CHAR, see MYSQLI_TYPE_STRING
MYSQLI_TYPE_GEOMETRY => 'geometry' // Field is defined as GEOMETRY
);
// http://dev.mysql.com/doc/refman/5.7/en/json.html
// As of MySQL 5.7.8, MySQL supports a native JSON data type
// 'json'
// http://dev.mysql.com/doc/refman/5.7/en/spatial-datatypes.html
// 'geometry'
// 'linestring'
// 'polygon'
// 'multipoint'
// 'multilinestring'
// 'multipolygon'
// 'geometrycollection'
// 'polygon'
// 'point' // WARNING: `point` data type doesn't have `(` !!! So we will have to fix some assumptions in the code!
private static $_type_classes = array(
MYSQLI_TYPE_DECIMAL => primitive::T_FLOAT_CLASS, // Field is defined as DECIMAL
MYSQLI_TYPE_NEWDECIMAL => primitive::T_FLOAT_CLASS, // Precision math DECIMAL or NUMERIC field (MySQL 5.0.3 and up)
MYSQLI_TYPE_BIT => primitive::T_GENERIC_CLASS, // Field is defined as BIT (MySQL 5.0.3 and up)
MYSQLI_TYPE_TINY => primitive::T_INTEGER_CLASS, // Field is defined as TINYINT
MYSQLI_TYPE_SHORT => primitive::T_INTEGER_CLASS, // Field is defined as SMALLINT
MYSQLI_TYPE_LONG => primitive::T_INTEGER_CLASS, // Field is defined as INT
MYSQLI_TYPE_FLOAT => primitive::T_FLOAT_CLASS, // Field is defined as FLOAT
MYSQLI_TYPE_DOUBLE => primitive::T_FLOAT_CLASS, // Field is defined as DOUBLE
MYSQLI_TYPE_NULL => null, // Field is defined as DEFAULT NULL
MYSQLI_TYPE_TIMESTAMP => primitive::T_STRING_CLASS, // Field is defined as TIMESTAMP
MYSQLI_TYPE_LONGLONG => primitive::T_GENERIC_CLASS, // Field is defined as BIGINT
MYSQLI_TYPE_INT24 => primitive::T_INTEGER_CLASS, // Field is defined as MEDIUMINT
MYSQLI_TYPE_DATE => primitive::T_STRING_CLASS, // Field is defined as DATE
MYSQLI_TYPE_TIME => primitive::T_STRING_CLASS, // Field is defined as TIME
MYSQLI_TYPE_DATETIME => primitive::T_STRING_CLASS, // Field is defined as DATETIME
MYSQLI_TYPE_YEAR => primitive::T_GENERIC_CLASS, // Field is defined as YEAR
MYSQLI_TYPE_NEWDATE => primitive::T_STRING_CLASS, // Field is defined as DATE
MYSQLI_TYPE_ENUM => primitive::T_ARRAY_CLASS, // Field is defined as ENUM <= PROBLEM HERE! ENUM() is classified as a STRING type and thus returns MYSQLI_TYPE_STRING
MYSQLI_TYPE_SET => primitive::T_ARRAY_CLASS, // Field is defined as SET
MYSQLI_TYPE_TINY_BLOB => primitive::T_STRING_CLASS, // Field is defined as TINYBLOB
MYSQLI_TYPE_MEDIUM_BLOB => primitive::T_STRING_CLASS, // Field is defined as MEDIUMBLOB
MYSQLI_TYPE_LONG_BLOB => primitive::T_STRING_CLASS, // Field is defined as LONGBLOB
MYSQLI_TYPE_BLOB => primitive::T_STRING_CLASS, // Field is defined as BLOB (& TEXT)
MYSQLI_TYPE_VAR_STRING => primitive::T_STRING_CLASS, // Field is defined as VARCHAR
MYSQLI_TYPE_STRING => primitive::T_STRING_CLASS, // Field is defined as CHAR or BINARY
// MySQL returns MYSQLI_TYPE_STRING for CHAR
// and MYSQLI_TYPE_CHAR === MYSQLI_TYPE_TINY
// so this would override TINYINT and mark all TINYINT as string
// https://sourceforge.net/p/phpmyadmin/bugs/2205/
MYSQLI_TYPE_CHAR => primitive::T_INTEGER_CLASS, // Field is defined as TINYINT. For CHAR, see MYSQLI_TYPE_STRING
MYSQLI_TYPE_GEOMETRY => null // Field is defined as GEOMETRY
);
static $flag_types = array(
MYSQLI_NUM_FLAG => 'numeric', // Field is defined as NUMERIC
MYSQLI_PART_KEY_FLAG => 'part_key', // Field is part of an multi-index
MYSQLI_SET_FLAG => 'set', // Field is defined as SET
MYSQLI_TIMESTAMP_FLAG => 'timestamp', // Field is defined as TIMESTAMP
MYSQLI_AUTO_INCREMENT_FLAG => 'auto_increment', // Field is defined as AUTO_INCREMENT
MYSQLI_ENUM_FLAG => 'enum', // Field is defined as ENUM. Available since PHP 5.3.0.
MYSQLI_BINARY_FLAG => 'binary', // Field is defined as BINARY. Available since PHP 5.3.0.
MYSQLI_GROUP_FLAG => 'group_by', // Field is part of GROUP BY
MYSQLI_ZEROFILL_FLAG => 'zerofill', // Field is defined as ZEROFILL
MYSQLI_UNSIGNED_FLAG => 'unsigned', // Field is defined as UNSIGNED
MYSQLI_BLOB_FLAG => 'blob', // Field is defined as BLOB
MYSQLI_MULTIPLE_KEY_FLAG => 'multiple_key', // Field is part of an index.
MYSQLI_UNIQUE_KEY_FLAG => 'unique_key', // Field is part of a unique index.
MYSQLI_PRI_KEY_FLAG => 'primary_key', // Field is part of a primary index
MYSQLI_NOT_NULL_FLAG => 'not_null' // Indicates that a field is defined as NOT NULL
);
*/
function __construct($type, $default, $nullable)
{
$this->type = $type;
$this->default = $default;
$this->nullable = $nullable;
}
function getType()
{
return $this->type;
}
function getTypeName() // TODO
{
return $this->type;
}
function getName() // TODO
{
return $this->type;
}
function getDefault()
{
return $this->default;
}
function isNullable()
{
return $this->nullable;
}
function isRequired()
{
return !$this->nullable && is_null($this->default);
}
function isValid($value)
{
return !is_null($value) || $this->nullable;
}
/*
function getFlags()
{
return $this->flags;
}
*/
/**
* 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 $platform The currently used database platform.
*
* @return mixed The database representation of the value.
*/
function toSQL($value)
{
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 $platform The currently used database platform.
*
* @return mixed The PHP representation of the value.
*/
function toPHP($value)
{
return $value;
}
public static function factory(array &$properties)
{
/*
Field Usage Statistics
SELECT DATA_TYPE, COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = "fcm" GROUP BY DATA_TYPE ORDER BY COUNT(*) DESC;
int 1288
tinyint 1061
float 796
varchar 788
smallint 384
enum 361
mediumint 316
date 264
bit 258
char 219
text 72
timestamp 70
binary 26
double 25
tinytext 14
set 11
decimal 10
year 10
varbinary 9
bigint 7
datetime 3
mediumtext 2
longblob 1
mediumblob 1
*/
switch ($properties[0])
{
case 'int': return new Integer('int', $properties[1], $properties[2], $properties[3] === 0 ? 0 : -2147483648, $properties[3] === 0 ? 4294967295 : 2147483647);
case 'tinyint': return new Integer('tinyint', $properties[1], $properties[2], $properties[3] === 0 ? 0 : -128, $properties[3] === 0 ? 255 : 127);
case 'float': return new Float('float', $properties[1], $properties[2], $properties[3]);
case 'varchar': return new String('varchar', $properties[1], $properties[2], $properties[3], $properties[4]);
case 'smallint': return new Integer('smallint', $properties[1], $properties[2], $properties[3] === 0 ? 0 : -32768, $properties[3] === 0 ? 65535 : 32767);
case 'enum': return new Array('enum', $properties[1], $properties[2], $properties[3]);
case 'mediumint': return new Integer('mediumint', $properties[1], $properties[2], $properties[3] === 0 ? 0 : -8388608, $properties[3] === 0 ? 16777215 : 8388607);
case 'date': return new Type('date', $properties[1], $properties[2]);
case 'bit': return new Integer('bit', $properties[1], $properties[2], 0, 1);
case 'char': return new String('char', $properties[1], $properties[2], $properties[3], $properties[4]);
case 'text': return new String('text', $properties[1], $properties[2], 65535, $properties[3]);
case 'timestamp': return new Type('timestamp', $properties[1], $properties[2]);
case 'binary': return new String('binary', $properties[1], $properties[2], $properties[3], 0);
case 'double': return new Float('double', $properties[1], $properties[2], $properties[3]);
case 'tinytext': return new String('tinytext', $properties[1], $properties[2], 255, $properties[3]);
case 'set': return new Array('set', $properties[1], $properties[2], $properties[3]);
case 'decimal': return new Float('decimal', $properties[1], $properties[2], $properties[3]);
case 'year': return new Integer('year', $properties[1], $properties[2], 1970, 2070); // 4-digit format = 1901 to 2155, or 0000.
case 'varbinary': return new String('varbinary', $properties[1], $properties[2], $properties[3], 0);
case 'bigint': return new Integer('bigint', $properties[1], $properties[2], $properties[3] === 0 ? 0 : -9223372036854775808, $properties[3] === 0 ? 18446744073709551615 : 9223372036854775807);
case 'datetime': return new Type('datetime', $properties[1], $properties[2]);
case 'mediumtext': return new String('mediumtext', $properties[1], $properties[2], 16777215, $properties[3]);
case 'longblob': return new String('longblob', $properties[1], $properties[2], 4294967295, $properties[3]);
case 'mediumblob': return new String('mediumblob', $properties[1], $properties[2], 16777215, $properties[3]);
case 'numeric': return new Float('numeric', $properties[1], $properties[2], $properties[3]);
case 'time': return new Type('time', $properties[1], $properties[2]);
case 'blob': return new String('blob', $properties[1], $properties[2], 65535, $properties[3]);
case 'tinyblob': return new String('tinyblob', $properties[1], $properties[2], 255, $properties[3]);
case 'longtext': return new String('longtext', $properties[1], $properties[2], 4294967295, $properties[3]);
}
throw new \Exception('Invalid data-type `' . $properties[0] . '` specified in ' . __METHOD__);
}
}