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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\Result;
use Doctrine\DBAL\Types\Type;
use Doctrine\Deprecations\Deprecation;
use function array_change_key_case;
use function assert;
use function count;
use function explode;
use function implode;
use function is_string;
use function preg_match;
use function sprintf;
use function str_replace;
use function strpos;
use function strtok;
use const CASE_LOWER;
/**
* SQL Server Schema Manager.
*
* @extends AbstractSchemaManager<SQLServerPlatform>
*/
class SQLServerSchemaManager extends AbstractSchemaManager
{
private ?string $databaseCollation = null;
/**
* {@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::trigger(
'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}
*/
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 ($table['schema_name'] !== 'dbo') {
return $table['schema_name'] . '.' . $table['table_name'];
}
return $table['table_name'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableDatabaseDefinition($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 alterTable(TableDiff $tableDiff)
{
$droppedColumns = $tableDiff->getDroppedColumns();
if (count($droppedColumns) > 0) {
$tableName = ($tableDiff->getOldTable() ?? $tableDiff->getName($this->_platform))->getName();
foreach ($droppedColumns as $col) {
foreach ($this->getColumnConstraints($tableName, $col->getName()) as $constraint) {
$this->_conn->executeStatement(
sprintf(
'ALTER TABLE %s DROP CONSTRAINT %s',
$tableName,
$constraint,
),
);
}
}
}
parent::alterTable($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, $column],
);
}
/** @throws Exception */
public function createComparator(): Comparator
{
return new SQLServer\Comparator($this->_platform, $this->getDatabaseCollation());
}
/** @throws Exception */
private function getDatabaseCollation(): string
{
if ($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;
}
protected function selectTableNames(string $databaseName): Result
{
// The "sysdiagrams" table must be ignored as it's internal SQL Server table for Database Diagrams
$sql = <<<'SQL'
SELECT name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name
FROM sys.objects
WHERE type = 'U'
AND name != 'sysdiagrams'
ORDER BY name
SQL;
return $this->_conn->executeQuery($sql, [$databaseName]);
}
protected function selectTableColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' obj.name AS table_name, scm.name AS schema_name,';
}
$sql .= <<<'SQL'
col.name,
type.name AS type,
col.max_length AS length,
~col.is_nullable AS notnull,
def.definition AS [default],
col.scale,
col.precision,
col.is_identity AS autoincrement,
col.collation_name AS collation,
-- CAST avoids driver error for sql_variant type
CAST(prop.value AS NVARCHAR(MAX)) AS comment
FROM sys.columns AS col
JOIN sys.types AS type
ON col.user_type_id = type.user_type_id
JOIN sys.objects AS obj
ON col.object_id = obj.object_id
JOIN sys.schemas AS scm
ON obj.schema_id = scm.schema_id
LEFT JOIN sys.default_constraints def
ON col.default_object_id = def.object_id
AND col.object_id = def.parent_object_id
LEFT JOIN sys.extended_properties AS prop
ON obj.object_id = prop.major_id
AND col.column_id = prop.minor_id
AND prop.name = 'MS_Description'
SQL;
// The "sysdiagrams" table must be ignored as it's internal SQL Server table for Database Diagrams
$conditions = ["obj.type = 'U'", "obj.name != 'sysdiagrams'"];
$params = [];
if ($tableName !== null) {
$conditions[] = $this->getTableWhereClause($tableName, 'scm.name', 'obj.name');
}
$sql .= ' WHERE ' . implode(' AND ', $conditions);
return $this->_conn->executeQuery($sql, $params);
}
protected function selectIndexColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' tbl.name AS table_name, scm.name AS schema_name,';
}
$sql .= <<<'SQL'
idx.name AS key_name,
col.name AS column_name,
~idx.is_unique AS non_unique,
idx.is_primary_key AS [primary],
CASE idx.type
WHEN '1' THEN 'clustered'
WHEN '2' THEN 'nonclustered'
ELSE NULL
END AS flags
FROM sys.tables AS tbl
JOIN sys.schemas AS scm
ON tbl.schema_id = scm.schema_id
JOIN sys.indexes AS idx
ON tbl.object_id = idx.object_id
JOIN sys.index_columns AS idxcol
ON idx.object_id = idxcol.object_id
AND idx.index_id = idxcol.index_id
JOIN sys.columns AS col
ON idxcol.object_id = col.object_id
AND idxcol.column_id = col.column_id
SQL;
$conditions = [];
$params = [];
if ($tableName !== null) {
$conditions[] = $this->getTableWhereClause($tableName, 'scm.name', 'tbl.name');
$sql .= ' WHERE ' . implode(' AND ', $conditions);
}
$sql .= ' ORDER BY idx.index_id, idxcol.key_ordinal';
return $this->_conn->executeQuery($sql, $params);
}
protected function selectForeignKeyColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' OBJECT_NAME (f.parent_object_id) AS table_name, SCHEMA_NAME(f.schema_id) AS schema_name,';
}
$sql .= <<<'SQL'
f.name AS ForeignKey,
SCHEMA_NAME (f.SCHEMA_ID) AS SchemaName,
OBJECT_NAME (f.parent_object_id) AS TableName,
COL_NAME (fc.parent_object_id,fc.parent_column_id) AS ColumnName,
SCHEMA_NAME (o.SCHEMA_ID) ReferenceSchemaName,
OBJECT_NAME (f.referenced_object_id) AS ReferenceTableName,
COL_NAME(fc.referenced_object_id,fc.referenced_column_id) AS ReferenceColumnName,
f.delete_referential_action_desc,
f.update_referential_action_desc
FROM sys.foreign_keys AS f
INNER JOIN sys.foreign_key_columns AS fc
INNER JOIN sys.objects AS o ON o.OBJECT_ID = fc.referenced_object_id
ON f.OBJECT_ID = fc.constraint_object_id
SQL;
$conditions = [];
$params = [];
if ($tableName !== null) {
$conditions[] = $this->getTableWhereClause(
$tableName,
'SCHEMA_NAME(f.schema_id)',
'OBJECT_NAME(f.parent_object_id)',
);
$sql .= ' WHERE ' . implode(' AND ', $conditions);
}
$sql .= ' ORDER BY fc.constraint_column_id';
return $this->_conn->executeQuery($sql, $params);
}
/**
* {@inheritDoc}
*/
protected function fetchTableOptionsByTable(string $databaseName, ?string $tableName = null): array
{
$sql = <<<'SQL'
SELECT
tbl.name,
p.value AS [table_comment]
FROM
sys.tables AS tbl
INNER JOIN sys.extended_properties AS p ON p.major_id=tbl.object_id AND p.minor_id=0 AND p.class=1
SQL;
$conditions = ["SCHEMA_NAME(tbl.schema_id) = N'dbo'", "p.name = N'MS_Description'"];
$params = [];
if ($tableName !== null) {
$conditions[] = "tbl.name = N'" . $tableName . "'";
}
$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] = [
'comment' => $data['table_comment'],
];
}
return $tableOptions;
}
/**
* Returns the where clause to filter schema and table name in a query.
*
* @param string $table The full qualified name of the table.
* @param string $schemaColumn The name of the column to compare the schema to in the where clause.
* @param string $tableColumn The name of the column to compare the table to in the where clause.
*/
private function getTableWhereClause($table, $schemaColumn, $tableColumn): string
{
if (strpos($table, '.') !== false) {
[$schema, $table] = explode('.', $table);
$schema = $this->_platform->quoteStringLiteral($schema);
$table = $this->_platform->quoteStringLiteral($table);
} else {
$schema = 'SCHEMA_NAME()';
$table = $this->_platform->quoteStringLiteral($table);
}
return sprintf('(%s = %s AND %s = %s)', $tableColumn, $table, $schemaColumn, $schema);
}
}
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