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<?php
namespace Doctrine\DBAL\Schema;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\Platforms\SQLServer;
use Doctrine\DBAL\Platforms\SQLServerPlatform;
use Doctrine\DBAL\Types\Type;
use Doctrine\Deprecations\Deprecation;
use function assert;
use function count;
use function is_string;
use function preg_match;
use function sprintf;
use function str_replace;
use function strpos;
use function strtok;
/**
* SQL Server Schema Manager.
*
* @extends AbstractSchemaManager<SQLServerPlatform>
*/
class SQLServerSchemaManager extends AbstractSchemaManager
{
/** @var string|null */
private $databaseCollation;
/**
* {@inheritDoc}
*/
public function listSchemaNames(): array
{
return $this->_conn->fetchFirstColumn(
<<<'SQL'
SELECT name
FROM sys.schemas
WHERE name NOT IN('guest', 'INFORMATION_SCHEMA', 'sys')
SQL
);
}
/**
* {@inheritdoc}
*/
protected function _getPortableSequenceDefinition($sequence)
{
return new Sequence($sequence['name'], (int) $sequence['increment'], (int) $sequence['start_value']);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableColumnDefinition($tableColumn)
{
$dbType = strtok($tableColumn['type'], '(), ');
assert(is_string($dbType));
$fixed = null;
$length = (int) $tableColumn['length'];
$default = $tableColumn['default'];
if (! isset($tableColumn['name'])) {
$tableColumn['name'] = '';
}
if ($default !== null) {
$default = $this->parseDefaultExpression($default);
}
switch ($dbType) {
case 'nchar':
case 'nvarchar':
case 'ntext':
// Unicode data requires 2 bytes per character
$length /= 2;
break;
case 'varchar':
// TEXT type is returned as VARCHAR(MAX) with a length of -1
if ($length === -1) {
$dbType = 'text';
}
break;
case 'varbinary':
if ($length === -1) {
$dbType = 'blob';
}
break;
}
if ($dbType === 'char' || $dbType === 'nchar' || $dbType === 'binary') {
$fixed = true;
}
$type = $this->_platform->getDoctrineTypeMapping($dbType);
$type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);
$tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);
$options = [
'unsigned' => false,
'fixed' => (bool) $fixed,
'default' => $default,
'notnull' => (bool) $tableColumn['notnull'],
'scale' => $tableColumn['scale'],
'precision' => $tableColumn['precision'],
'autoincrement' => (bool) $tableColumn['autoincrement'],
'comment' => $tableColumn['comment'] !== '' ? $tableColumn['comment'] : null,
];
if ($length !== 0 && ($type === 'text' || $type === 'string' || $type === 'binary')) {
$options['length'] = $length;
}
$column = new Column($tableColumn['name'], Type::getType($type), $options);
if (isset($tableColumn['collation']) && $tableColumn['collation'] !== 'NULL') {
$column->setPlatformOption('collation', $tableColumn['collation']);
}
return $column;
}
private function parseDefaultExpression(string $value): ?string
{
while (preg_match('/^\((.*)\)$/s', $value, $matches)) {
$value = $matches[1];
}
if ($value === 'NULL') {
return null;
}
if (preg_match('/^\'(.*)\'$/s', $value, $matches) === 1) {
$value = str_replace("''", "'", $matches[1]);
}
if ($value === 'getdate()') {
return $this->_platform->getCurrentTimestampSQL();
}
return $value;
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableForeignKeysList($tableForeignKeys)
{
$foreignKeys = [];
foreach ($tableForeignKeys as $tableForeignKey) {
$name = $tableForeignKey['ForeignKey'];
if (! isset($foreignKeys[$name])) {
$foreignKeys[$name] = [
'local_columns' => [$tableForeignKey['ColumnName']],
'foreign_table' => $tableForeignKey['ReferenceTableName'],
'foreign_columns' => [$tableForeignKey['ReferenceColumnName']],
'name' => $name,
'options' => [
'onUpdate' => str_replace('_', ' ', $tableForeignKey['update_referential_action_desc']),
'onDelete' => str_replace('_', ' ', $tableForeignKey['delete_referential_action_desc']),
],
];
} else {
$foreignKeys[$name]['local_columns'][] = $tableForeignKey['ColumnName'];
$foreignKeys[$name]['foreign_columns'][] = $tableForeignKey['ReferenceColumnName'];
}
}
return parent::_getPortableTableForeignKeysList($foreignKeys);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
{
foreach ($tableIndexes as &$tableIndex) {
$tableIndex['non_unique'] = (bool) $tableIndex['non_unique'];
$tableIndex['primary'] = (bool) $tableIndex['primary'];
$tableIndex['flags'] = $tableIndex['flags'] ? [$tableIndex['flags']] : null;
}
return parent::_getPortableTableIndexesList($tableIndexes, $tableName);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
{
return new ForeignKeyConstraint(
$tableForeignKey['local_columns'],
$tableForeignKey['foreign_table'],
$tableForeignKey['foreign_columns'],
$tableForeignKey['name'],
$tableForeignKey['options']
);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableDefinition($table)
{
if (isset($table['schema_name']) && $table['schema_name'] !== 'dbo') {
return $table['schema_name'] . '.' . $table['name'];
}
return $table['name'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableDatabaseDefinition($database)
{
return $database['name'];
}
/**
* {@inheritdoc}
*
* @deprecated Use {@see listSchemaNames()} instead.
*/
protected function getPortableNamespaceDefinition(array $namespace)
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/4503',
'SQLServerSchemaManager::getPortableNamespaceDefinition() is deprecated,'
. ' use SQLServerSchemaManager::listSchemaNames() instead.'
);
return $namespace['name'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableViewDefinition($view)
{
// @todo
return new View($view['name'], $view['definition']);
}
/**
* {@inheritdoc}
*/
public function listTableIndexes($table)
{
$sql = $this->_platform->getListTableIndexesSQL($table, $this->_conn->getDatabase());
try {
$tableIndexes = $this->_conn->fetchAllAssociative($sql);
} catch (Exception $e) {
if (strpos($e->getMessage(), 'SQLSTATE [01000, 15472]') === 0) {
return [];
}
throw $e;
}
return $this->_getPortableTableIndexesList($tableIndexes, $table);
}
/**
* {@inheritdoc}
*/
public function alterTable(TableDiff $tableDiff)
{
if (count($tableDiff->removedColumns) > 0) {
foreach ($tableDiff->removedColumns as $col) {
foreach ($this->getColumnConstraints($tableDiff->name, $col->getName()) as $constraint) {
$this->_conn->executeStatement(
sprintf(
'ALTER TABLE %s DROP CONSTRAINT %s',
$tableDiff->name,
$constraint
)
);
}
}
}
parent::alterTable($tableDiff);
}
/**
* Returns the names of the constraints for a given column.
*
* @return iterable<string>
*
* @throws Exception
*/
private function getColumnConstraints(string $table, string $column): iterable
{
return $this->_conn->iterateColumn(
<<<'SQL'
SELECT o.name
FROM sys.objects o
INNER JOIN sys.objects t
ON t.object_id = o.parent_object_id
AND t.type = 'U'
INNER JOIN sys.default_constraints dc
ON dc.object_id = o.object_id
INNER JOIN sys.columns c
ON c.column_id = dc.parent_column_id
AND c.object_id = t.object_id
WHERE t.name = ?
AND c.name = ?
SQL
,
[$table, $column]
);
}
/**
* @param string $name
*
* @throws Exception
*/
public function listTableDetails($name): Table
{
$table = parent::listTableDetails($name);
$sql = $this->_platform->getListTableMetadataSQL($name);
$tableOptions = $this->_conn->fetchAssociative($sql);
if ($tableOptions !== false) {
$table->addOption('comment', $tableOptions['table_comment']);
}
return $table;
}
/**
* @throws Exception
*/
public function createComparator(): Comparator
{
return new SQLServer\Comparator($this->getDatabasePlatform(), $this->getDatabaseCollation());
}
/**
* @throws Exception
*/
private function getDatabaseCollation(): string
{
if ($this->databaseCollation === null) {
$databaseCollation = $this->_conn->fetchOne(
'SELECT collation_name FROM sys.databases WHERE name = '
. $this->_platform->getCurrentDatabaseExpression(),
);
// a database is always selected, even if omitted in the connection parameters
assert(is_string($databaseCollation));
$this->databaseCollation = $databaseCollation;
}
return $this->databaseCollation;
}
}
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