348 lines
10 KiB
PHP
348 lines
10 KiB
PHP
<?php
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namespace Doctrine\DBAL\Schema;
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use Doctrine\DBAL\DBALException;
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use Doctrine\DBAL\Driver\Exception;
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use Doctrine\DBAL\Platforms\SQLServerPlatform;
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use Doctrine\DBAL\Types\Type;
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use Throwable;
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use function assert;
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use function count;
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use function in_array;
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use function is_string;
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use function preg_match;
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use function sprintf;
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use function str_replace;
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use function strpos;
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use function strtok;
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/**
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* SQL Server Schema Manager.
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*/
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class SQLServerSchemaManager extends AbstractSchemaManager
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{
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/**
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* {@inheritdoc}
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*/
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public function dropDatabase($database)
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{
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try {
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parent::dropDatabase($database);
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} catch (DBALException $exception) {
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$exception = $exception->getPrevious();
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assert($exception instanceof Throwable);
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if (! $exception instanceof Exception) {
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throw $exception;
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}
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// If we have a error code 3702, the drop database operation failed
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// because of active connections on the database.
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// To force dropping the database, we first have to close all active connections
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// on that database and issue the drop database operation again.
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if ($exception->getErrorCode() !== 3702) {
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throw $exception;
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}
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$this->closeActiveDatabaseConnections($database);
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parent::dropDatabase($database);
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableSequenceDefinition($sequence)
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{
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return new Sequence($sequence['name'], (int) $sequence['increment'], (int) $sequence['start_value']);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableColumnDefinition($tableColumn)
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{
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$dbType = strtok($tableColumn['type'], '(), ');
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assert(is_string($dbType));
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$fixed = null;
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$length = (int) $tableColumn['length'];
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$default = $tableColumn['default'];
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if (! isset($tableColumn['name'])) {
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$tableColumn['name'] = '';
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}
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if ($default !== null) {
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$default = $this->parseDefaultExpression($default);
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}
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switch ($dbType) {
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case 'nchar':
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case 'nvarchar':
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case 'ntext':
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// Unicode data requires 2 bytes per character
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$length /= 2;
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break;
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case 'varchar':
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// TEXT type is returned as VARCHAR(MAX) with a length of -1
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if ($length === -1) {
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$dbType = 'text';
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}
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break;
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}
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if ($dbType === 'char' || $dbType === 'nchar' || $dbType === 'binary') {
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$fixed = true;
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}
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$type = $this->_platform->getDoctrineTypeMapping($dbType);
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$type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);
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$tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);
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$options = [
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'length' => $length === 0 || ! in_array($type, ['text', 'string']) ? null : $length,
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'unsigned' => false,
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'fixed' => (bool) $fixed,
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'default' => $default,
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'notnull' => (bool) $tableColumn['notnull'],
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'scale' => $tableColumn['scale'],
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'precision' => $tableColumn['precision'],
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'autoincrement' => (bool) $tableColumn['autoincrement'],
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'comment' => $tableColumn['comment'] !== '' ? $tableColumn['comment'] : null,
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];
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$column = new Column($tableColumn['name'], Type::getType($type), $options);
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if (isset($tableColumn['collation']) && $tableColumn['collation'] !== 'NULL') {
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$column->setPlatformOption('collation', $tableColumn['collation']);
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}
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return $column;
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}
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private function parseDefaultExpression(string $value): ?string
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{
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while (preg_match('/^\((.*)\)$/s', $value, $matches)) {
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$value = $matches[1];
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}
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if ($value === 'NULL') {
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return null;
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}
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if (preg_match('/^\'(.*)\'$/s', $value, $matches)) {
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$value = str_replace("''", "'", $matches[1]);
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}
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if ($value === 'getdate()') {
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return $this->_platform->getCurrentTimestampSQL();
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}
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return $value;
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableForeignKeysList($tableForeignKeys)
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{
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$foreignKeys = [];
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foreach ($tableForeignKeys as $tableForeignKey) {
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$name = $tableForeignKey['ForeignKey'];
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if (! isset($foreignKeys[$name])) {
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$foreignKeys[$name] = [
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'local_columns' => [$tableForeignKey['ColumnName']],
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'foreign_table' => $tableForeignKey['ReferenceTableName'],
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'foreign_columns' => [$tableForeignKey['ReferenceColumnName']],
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'name' => $name,
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'options' => [
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'onUpdate' => str_replace('_', ' ', $tableForeignKey['update_referential_action_desc']),
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'onDelete' => str_replace('_', ' ', $tableForeignKey['delete_referential_action_desc']),
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],
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];
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} else {
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$foreignKeys[$name]['local_columns'][] = $tableForeignKey['ColumnName'];
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$foreignKeys[$name]['foreign_columns'][] = $tableForeignKey['ReferenceColumnName'];
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}
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}
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return parent::_getPortableTableForeignKeysList($foreignKeys);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
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{
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foreach ($tableIndexes as &$tableIndex) {
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$tableIndex['non_unique'] = (bool) $tableIndex['non_unique'];
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$tableIndex['primary'] = (bool) $tableIndex['primary'];
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$tableIndex['flags'] = $tableIndex['flags'] ? [$tableIndex['flags']] : null;
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}
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return parent::_getPortableTableIndexesList($tableIndexes, $tableName);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
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{
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return new ForeignKeyConstraint(
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$tableForeignKey['local_columns'],
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$tableForeignKey['foreign_table'],
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$tableForeignKey['foreign_columns'],
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$tableForeignKey['name'],
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$tableForeignKey['options']
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);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableDefinition($table)
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{
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if (isset($table['schema_name']) && $table['schema_name'] !== 'dbo') {
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return $table['schema_name'] . '.' . $table['name'];
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}
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return $table['name'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableDatabaseDefinition($database)
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{
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return $database['name'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function getPortableNamespaceDefinition(array $namespace)
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{
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return $namespace['name'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableViewDefinition($view)
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{
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// @todo
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return new View($view['name'], '');
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}
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/**
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* {@inheritdoc}
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*/
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public function listTableIndexes($table)
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{
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$sql = $this->_platform->getListTableIndexesSQL($table, $this->_conn->getDatabase());
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try {
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$tableIndexes = $this->_conn->fetchAllAssociative($sql);
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} catch (DBALException $e) {
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if (strpos($e->getMessage(), 'SQLSTATE [01000, 15472]') === 0) {
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return [];
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}
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throw $e;
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}
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return $this->_getPortableTableIndexesList($tableIndexes, $table);
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}
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/**
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* {@inheritdoc}
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*/
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public function alterTable(TableDiff $tableDiff)
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{
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if (count($tableDiff->removedColumns) > 0) {
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foreach ($tableDiff->removedColumns as $col) {
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$columnConstraintSql = $this->getColumnConstraintSQL($tableDiff->name, $col->getName());
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foreach ($this->_conn->fetchAllAssociative($columnConstraintSql) as $constraint) {
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$this->_conn->exec(
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sprintf(
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'ALTER TABLE %s DROP CONSTRAINT %s',
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$tableDiff->name,
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$constraint['Name']
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)
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);
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}
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}
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}
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parent::alterTable($tableDiff);
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}
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/**
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* Returns the SQL to retrieve the constraints for a given column.
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*
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* @param string $table
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* @param string $column
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*
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* @return string
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*/
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private function getColumnConstraintSQL($table, $column)
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{
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return "SELECT sysobjects.[Name]
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FROM sysobjects INNER JOIN (SELECT [Name],[ID] FROM sysobjects WHERE XType = 'U') AS Tab
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ON Tab.[ID] = sysobjects.[Parent_Obj]
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INNER JOIN sys.default_constraints DefCons ON DefCons.[object_id] = sysobjects.[ID]
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INNER JOIN syscolumns Col ON Col.[ColID] = DefCons.[parent_column_id] AND Col.[ID] = Tab.[ID]
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WHERE Col.[Name] = " . $this->_conn->quote($column) . ' AND Tab.[Name] = ' . $this->_conn->quote($table) . '
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ORDER BY Col.[Name]';
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}
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/**
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* Closes currently active connections on the given database.
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*
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* This is useful to force DROP DATABASE operations which could fail because of active connections.
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*
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* @param string $database The name of the database to close currently active connections for.
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*
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* @return void
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*/
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private function closeActiveDatabaseConnections($database)
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{
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$database = new Identifier($database);
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$this->_execSql(
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sprintf(
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'ALTER DATABASE %s SET SINGLE_USER WITH ROLLBACK IMMEDIATE',
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$database->getQuotedName($this->_platform)
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)
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);
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}
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/**
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* @param string $name
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*/
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public function listTableDetails($name): Table
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{
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$table = parent::listTableDetails($name);
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$platform = $this->_platform;
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assert($platform instanceof SQLServerPlatform);
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$sql = $platform->getListTableMetadataSQL($name);
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$tableOptions = $this->_conn->fetchAssociative($sql);
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if ($tableOptions !== false) {
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$table->addOption('comment', $tableOptions['table_comment']);
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}
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return $table;
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}
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}
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