Viewing file:  MySQLSchemaManager.php (19.45 KB) -rw-r--r--
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<?php
namespace Doctrine\DBAL\Schema;
use Doctrine\DBAL\Platforms\AbstractMySQLPlatform;
use Doctrine\DBAL\Platforms\MariaDb1027Platform;
use Doctrine\DBAL\Platforms\MySQL;
use Doctrine\DBAL\Platforms\MySQL\CollationMetadataProvider\CachingCollationMetadataProvider;
use Doctrine\DBAL\Platforms\MySQL\CollationMetadataProvider\ConnectionCollationMetadataProvider;
use Doctrine\DBAL\Result;
use Doctrine\DBAL\Types\Type;
use Doctrine\Deprecations\Deprecation;
use function array_change_key_case;
use function array_shift;
use function assert;
use function explode;
use function implode;
use function is_string;
use function preg_match;
use function strpos;
use function strtok;
use function strtolower;
use function strtr;
use const CASE_LOWER;
/**
* Schema manager for the MySQL RDBMS.
*
* @extends AbstractSchemaManager<AbstractMySQLPlatform>
*/
class MySQLSchemaManager extends AbstractSchemaManager
{
/** @see https://mariadb.com/kb/en/library/string-literals/#escape-sequences */
private const MARIADB_ESCAPE_SEQUENCES = [
'\\0' => "\0",
"\\'" => "'",
'\\"' => '"',
'\\b' => "\b",
'\\n' => "\n",
'\\r' => "\r",
'\\t' => "\t",
'\\Z' => "\x1a",
'\\\\' => '\\',
'\\%' => '%',
'\\_' => '_',
// Internally, MariaDB escapes single quotes using the standard syntax
"''" => "'",
];
/**
* {@inheritDoc}
*/
public function listTableNames()
{
return $this->doListTableNames();
}
/**
* {@inheritDoc}
*/
public function listTables()
{
return $this->doListTables();
}
/**
* {@inheritDoc}
*
* @deprecated Use {@see introspectTable()} instead.
*/
public function listTableDetails($name)
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5595',
'%s is deprecated. Use introspectTable() instead.',
__METHOD__,
);
return $this->doListTableDetails($name);
}
/**
* {@inheritDoc}
*/
public function listTableColumns($table, $database = null)
{
return $this->doListTableColumns($table, $database);
}
/**
* {@inheritDoc}
*/
public function listTableIndexes($table)
{
return $this->doListTableIndexes($table);
}
/**
* {@inheritDoc}
*/
public function listTableForeignKeys($table, $database = null)
{
return $this->doListTableForeignKeys($table, $database);
}
/**
* {@inheritDoc}
*/
protected function _getPortableViewDefinition($view)
{
return new View($view['TABLE_NAME'], $view['VIEW_DEFINITION']);
}
/**
* {@inheritDoc}
*/
protected function _getPortableTableDefinition($table)
{
return array_shift($table);
}
/**
* {@inheritDoc}
*/
protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
{
foreach ($tableIndexes as $k => $v) {
$v = array_change_key_case($v, CASE_LOWER);
if ($v['key_name'] === 'PRIMARY') {
$v['primary'] = true;
} else {
$v['primary'] = false;
}
if (strpos($v['index_type'], 'FULLTEXT') !== false) {
$v['flags'] = ['FULLTEXT'];
} elseif (strpos($v['index_type'], 'SPATIAL') !== false) {
$v['flags'] = ['SPATIAL'];
}
// Ignore prohibited prefix `length` for spatial index
if (strpos($v['index_type'], 'SPATIAL') === false) {
$v['length'] = isset($v['sub_part']) ? (int) $v['sub_part'] : null;
}
$tableIndexes[$k] = $v;
}
return parent::_getPortableTableIndexesList($tableIndexes, $tableName);
}
/**
* {@inheritDoc}
*/
protected function _getPortableDatabaseDefinition($database)
{
return $database['Database'];
}
/**
* {@inheritDoc}
*/
protected function _getPortableTableColumnDefinition($tableColumn)
{
$tableColumn = array_change_key_case($tableColumn, CASE_LOWER);
$dbType = strtolower($tableColumn['type']);
$dbType = strtok($dbType, '(), ');
assert(is_string($dbType));
$length = $tableColumn['length'] ?? strtok('(), ');
$fixed = null;
if (! isset($tableColumn['name'])) {
$tableColumn['name'] = '';
}
$scale = null;
$precision = null;
$type = $origType = $this->_platform->getDoctrineTypeMapping($dbType);
// In cases where not connected to a database DESCRIBE $table does not return 'Comment'
if (isset($tableColumn['comment'])) {
$type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);
$tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);
}
// Check underlying database type where doctrine type is inferred from DC2Type comment
// and set a flag if it is not as expected.
if ($origType !== $type && $this->expectedDbType($type, $tableColumn) !== $dbType) {
$tableColumn['declarationMismatch'] = true;
}
switch ($dbType) {
case 'char':
case 'binary':
$fixed = true;
break;
case 'float':
case 'double':
case 'real':
case 'numeric':
case 'decimal':
if (
preg_match(
'([A-Za-z]+\(([0-9]+),([0-9]+)\))',
$tableColumn['type'],
$match,
) === 1
) {
$precision = $match[1];
$scale = $match[2];
$length = null;
}
break;
case 'tinytext':
$length = AbstractMySQLPlatform::LENGTH_LIMIT_TINYTEXT;
break;
case 'text':
$length = AbstractMySQLPlatform::LENGTH_LIMIT_TEXT;
break;
case 'mediumtext':
$length = AbstractMySQLPlatform::LENGTH_LIMIT_MEDIUMTEXT;
break;
case 'tinyblob':
$length = AbstractMySQLPlatform::LENGTH_LIMIT_TINYBLOB;
break;
case 'blob':
$length = AbstractMySQLPlatform::LENGTH_LIMIT_BLOB;
break;
case 'mediumblob':
$length = AbstractMySQLPlatform::LENGTH_LIMIT_MEDIUMBLOB;
break;
case 'tinyint':
case 'smallint':
case 'mediumint':
case 'int':
case 'integer':
case 'bigint':
case 'year':
$length = null;
break;
}
if ($this->_platform instanceof MariaDb1027Platform) {
$columnDefault = $this->getMariaDb1027ColumnDefault($this->_platform, $tableColumn['default']);
} else {
$columnDefault = $tableColumn['default'];
}
$options = [
'length' => $length !== null ? (int) $length : null,
'unsigned' => strpos($tableColumn['type'], 'unsigned') !== false,
'fixed' => (bool) $fixed,
'default' => $columnDefault,
'notnull' => $tableColumn['null'] !== 'YES',
'scale' => null,
'precision' => null,
'autoincrement' => strpos($tableColumn['extra'], 'auto_increment') !== false,
'comment' => isset($tableColumn['comment']) && $tableColumn['comment'] !== ''
? $tableColumn['comment']
: null,
];
if ($scale !== null && $precision !== null) {
$options['scale'] = (int) $scale;
$options['precision'] = (int) $precision;
}
$column = new Column($tableColumn['field'], Type::getType($type), $options);
if (isset($tableColumn['characterset'])) {
$column->setPlatformOption('charset', $tableColumn['characterset']);
}
if (isset($tableColumn['collation'])) {
$column->setPlatformOption('collation', $tableColumn['collation']);
}
if (isset($tableColumn['declarationMismatch'])) {
$column->setPlatformOption('declarationMismatch', $tableColumn['declarationMismatch']);
}
return $column;
}
/**
* Returns the database data type for a given doctrine type and column
*
* Note that for data types that depend on length where length is not part of the column definition
* and therefore the $tableColumn['length'] will not be set, for example TEXT (which could be LONGTEXT,
* MEDIUMTEXT) or BLOB (LONGBLOB or TINYBLOB), the expectedDbType cannot be inferred exactly, merely
* the default type.
*
* This method is intended to be used to determine underlying database type where doctrine type is
* inferred from a DC2Type comment.
*
* @param mixed[] $tableColumn
*/
private function expectedDbType(string $type, array $tableColumn): string
{
$_type = Type::getType($type);
$expectedDbType = strtolower($_type->getSQLDeclaration($tableColumn, $this->_platform));
$expectedDbType = strtok($expectedDbType, '(), ');
return $expectedDbType === false ? '' : $expectedDbType;
}
/**
* Return Doctrine/Mysql-compatible column default values for MariaDB 10.2.7+ servers.
*
* - Since MariaDb 10.2.7 column defaults stored in information_schema are now quoted
* to distinguish them from expressions (see MDEV-10134).
* - CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE are stored in information_schema
* as current_timestamp(), currdate(), currtime()
* - Quoted 'NULL' is not enforced by Maria, it is technically possible to have
* null in some circumstances (see https://jira.mariadb.org/browse/MDEV-14053)
* - \' is always stored as '' in information_schema (normalized)
*
* @link https://mariadb.com/kb/en/library/information-schema-columns-table/
* @link https://jira.mariadb.org/browse/MDEV-13132
*
* @param string|null $columnDefault default value as stored in information_schema for MariaDB >= 10.2.7
*/
private function getMariaDb1027ColumnDefault(MariaDb1027Platform $platform, ?string $columnDefault): ?string
{
if ($columnDefault === 'NULL' || $columnDefault === null) {
return null;
}
if (preg_match('/^\'(.*)\'$/', $columnDefault, $matches) === 1) {
return strtr($matches[1], self::MARIADB_ESCAPE_SEQUENCES);
}
switch ($columnDefault) {
case 'current_timestamp()':
return $platform->getCurrentTimestampSQL();
case 'curdate()':
return $platform->getCurrentDateSQL();
case 'curtime()':
return $platform->getCurrentTimeSQL();
}
return $columnDefault;
}
/**
* {@inheritDoc}
*/
protected function _getPortableTableForeignKeysList($tableForeignKeys)
{
$list = [];
foreach ($tableForeignKeys as $value) {
$value = array_change_key_case($value, CASE_LOWER);
if (! isset($list[$value['constraint_name']])) {
if (! isset($value['delete_rule']) || $value['delete_rule'] === 'RESTRICT') {
$value['delete_rule'] = null;
}
if (! isset($value['update_rule']) || $value['update_rule'] === 'RESTRICT') {
$value['update_rule'] = null;
}
$list[$value['constraint_name']] = [
'name' => $value['constraint_name'],
'local' => [],
'foreign' => [],
'foreignTable' => $value['referenced_table_name'],
'onDelete' => $value['delete_rule'],
'onUpdate' => $value['update_rule'],
];
}
$list[$value['constraint_name']]['local'][] = $value['column_name'];
$list[$value['constraint_name']]['foreign'][] = $value['referenced_column_name'];
}
return parent::_getPortableTableForeignKeysList($list);
}
/**
* {@inheritDoc}
*/
protected function _getPortableTableForeignKeyDefinition($tableForeignKey): ForeignKeyConstraint
{
return new ForeignKeyConstraint(
$tableForeignKey['local'],
$tableForeignKey['foreignTable'],
$tableForeignKey['foreign'],
$tableForeignKey['name'],
[
'onDelete' => $tableForeignKey['onDelete'],
'onUpdate' => $tableForeignKey['onUpdate'],
],
);
}
public function createComparator(): Comparator
{
return new MySQL\Comparator(
$this->_platform,
new CachingCollationMetadataProvider(
new ConnectionCollationMetadataProvider($this->_conn),
),
);
}
protected function selectTableNames(string $databaseName): Result
{
$sql = <<<'SQL'
SELECT TABLE_NAME
FROM information_schema.TABLES
WHERE TABLE_SCHEMA = ?
AND TABLE_TYPE = 'BASE TABLE'
ORDER BY TABLE_NAME
SQL;
return $this->_conn->executeQuery($sql, [$databaseName]);
}
protected function selectTableColumns(string $databaseName, ?string $tableName = null): Result
{
[$columnTypeSQL, $joinCheckConstraintSQL] = $this->_platform->getColumnTypeSQLSnippets();
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' c.TABLE_NAME,';
}
$sql .= <<<SQL
c.COLUMN_NAME AS field,
$columnTypeSQL AS type,
c.IS_NULLABLE AS `null`,
c.COLUMN_KEY AS `key`,
c.COLUMN_DEFAULT AS `default`,
c.EXTRA,
c.COLUMN_COMMENT AS comment,
c.CHARACTER_SET_NAME AS characterset,
c.COLLATION_NAME AS collation
FROM information_schema.COLUMNS c
INNER JOIN information_schema.TABLES t
ON t.TABLE_NAME = c.TABLE_NAME
$joinCheckConstraintSQL
SQL;
// The schema name is passed multiple times as a literal in the WHERE clause instead of using a JOIN condition
// in order to avoid performance issues on MySQL older than 8.0 and the corresponding MariaDB versions
// caused by https://bugs.mysql.com/bug.php?id=81347
$conditions = ['c.TABLE_SCHEMA = ?', 't.TABLE_SCHEMA = ?', "t.TABLE_TYPE = 'BASE TABLE'"];
$params = [$databaseName, $databaseName];
if ($tableName !== null) {
$conditions[] = 't.TABLE_NAME = ?';
$params[] = $tableName;
}
$sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY ORDINAL_POSITION';
return $this->_conn->executeQuery($sql, $params);
}
protected function selectIndexColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' TABLE_NAME,';
}
$sql .= <<<'SQL'
NON_UNIQUE AS Non_Unique,
INDEX_NAME AS Key_name,
COLUMN_NAME AS Column_Name,
SUB_PART AS Sub_Part,
INDEX_TYPE AS Index_Type
FROM information_schema.STATISTICS
SQL;
$conditions = ['TABLE_SCHEMA = ?'];
$params = [$databaseName];
if ($tableName !== null) {
$conditions[] = 'TABLE_NAME = ?';
$params[] = $tableName;
}
$sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY SEQ_IN_INDEX';
return $this->_conn->executeQuery($sql, $params);
}
protected function selectForeignKeyColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT DISTINCT';
if ($tableName === null) {
$sql .= ' k.TABLE_NAME,';
}
$sql .= <<<'SQL'
k.CONSTRAINT_NAME,
k.COLUMN_NAME,
k.REFERENCED_TABLE_NAME,
k.REFERENCED_COLUMN_NAME,
k.ORDINAL_POSITION /*!50116,
c.UPDATE_RULE,
c.DELETE_RULE */
FROM information_schema.key_column_usage k /*!50116
INNER JOIN information_schema.referential_constraints c
ON c.CONSTRAINT_NAME = k.CONSTRAINT_NAME
AND c.TABLE_NAME = k.TABLE_NAME */
SQL;
$conditions = ['k.TABLE_SCHEMA = ?'];
$params = [$databaseName];
if ($tableName !== null) {
$conditions[] = 'k.TABLE_NAME = ?';
$params[] = $tableName;
}
$conditions[] = 'k.REFERENCED_COLUMN_NAME IS NOT NULL';
$sql .= ' WHERE ' . implode(' AND ', $conditions)
// The schema name is passed multiple times in the WHERE clause instead of using a JOIN condition
// in order to avoid performance issues on MySQL older than 8.0 and the corresponding MariaDB versions
// caused by https://bugs.mysql.com/bug.php?id=81347.
// Use a string literal for the database name since the internal PDO SQL parser
// cannot recognize parameter placeholders inside conditional comments
. ' /*!50116 AND c.CONSTRAINT_SCHEMA = ' . $this->_conn->quote($databaseName) . ' */'
. ' ORDER BY k.ORDINAL_POSITION';
return $this->_conn->executeQuery($sql, $params);
}
/**
* {@inheritDoc}
*/
protected function fetchTableOptionsByTable(string $databaseName, ?string $tableName = null): array
{
$sql = <<<'SQL'
SELECT t.TABLE_NAME,
t.ENGINE,
t.AUTO_INCREMENT,
t.TABLE_COMMENT,
t.CREATE_OPTIONS,
t.TABLE_COLLATION,
ccsa.CHARACTER_SET_NAME
FROM information_schema.TABLES t
INNER JOIN information_schema.COLLATION_CHARACTER_SET_APPLICABILITY ccsa
ON ccsa.COLLATION_NAME = t.TABLE_COLLATION
SQL;
$conditions = ['t.TABLE_SCHEMA = ?'];
$params = [$databaseName];
if ($tableName !== null) {
$conditions[] = 't.TABLE_NAME = ?';
$params[] = $tableName;
}
$conditions[] = "t.TABLE_TYPE = 'BASE TABLE'";
$sql .= ' WHERE ' . implode(' AND ', $conditions);
/** @var array<string,array<string,mixed>> $metadata */
$metadata = $this->_conn->executeQuery($sql, $params)
->fetchAllAssociativeIndexed();
$tableOptions = [];
foreach ($metadata as $table => $data) {
$data = array_change_key_case($data, CASE_LOWER);
$tableOptions[$table] = [
'engine' => $data['engine'],
'collation' => $data['table_collation'],
'charset' => $data['character_set_name'],
'autoincrement' => $data['auto_increment'],
'comment' => $data['table_comment'],
'create_options' => $this->parseCreateOptions($data['create_options']),
];
}
return $tableOptions;
}
/** @return string[]|true[] */
private function parseCreateOptions(?string $string): array
{
$options = [];
if ($string === null || $string === '') {
return $options;
}
foreach (explode(' ', $string) as $pair) {
$parts = explode('=', $pair, 2);
$options[$parts[0]] = $parts[1] ?? true;
}
return $options;
}
}
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