/lib/Cake/Model/Datasource/Database/Sqlserver.php
PHP | 800 lines | 634 code | 29 blank | 137 comment | 29 complexity | 779e7e5a075cf862d99fea07c4181135 MD5 | raw file
- <?php
- /**
- * MS SQL Server layer for DBO
- *
- * PHP 5
- *
- * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
- * Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
- *
- * Licensed under The MIT License
- * Redistributions of files must retain the above copyright notice.
- *
- * @copyright Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
- * @link http://cakephp.org CakePHP(tm) Project
- * @package Cake.Model.Datasource.Database
- * @since CakePHP(tm) v 0.10.5.1790
- * @license MIT License (http://www.opensource.org/licenses/mit-license.php)
- */
- App::uses('DboSource', 'Model/Datasource');
- /**
- * Dbo driver for SQLServer
- *
- * A Dbo driver for SQLServer 2008 and higher. Requires the `sqlsrv`
- * and `pdo_sqlsrv` extensions to be enabled.
- *
- * @package Cake.Model.Datasource.Database
- */
- class Sqlserver extends DboSource {
- /**
- * Driver description
- *
- * @var string
- */
- public $description = "SQL Server DBO Driver";
- /**
- * Starting quote character for quoted identifiers
- *
- * @var string
- */
- public $startQuote = "[";
- /**
- * Ending quote character for quoted identifiers
- *
- * @var string
- */
- public $endQuote = "]";
- /**
- * Creates a map between field aliases and numeric indexes. Workaround for the
- * SQL Server driver's 30-character column name limitation.
- *
- * @var array
- */
- protected $_fieldMappings = array();
- /**
- * Storing the last affected value
- *
- * @var mixed
- */
- protected $_lastAffected = false;
- /**
- * Base configuration settings for MS SQL driver
- *
- * @var array
- */
- protected $_baseConfig = array(
- 'persistent' => true,
- 'host' => 'localhost\SQLEXPRESS',
- 'login' => '',
- 'password' => '',
- 'database' => 'cake'
- );
- /**
- * MS SQL column definition
- *
- * @var array
- */
- public $columns = array(
- 'primary_key' => array('name' => 'IDENTITY (1, 1) NOT NULL'),
- 'string' => array('name' => 'nvarchar', 'limit' => '255'),
- 'text' => array('name' => 'nvarchar', 'limit' => 'MAX'),
- 'integer' => array('name' => 'int', 'formatter' => 'intval'),
- 'float' => array('name' => 'numeric', 'formatter' => 'floatval'),
- 'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
- 'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
- 'time' => array('name' => 'datetime', 'format' => 'H:i:s', 'formatter' => 'date'),
- 'date' => array('name' => 'datetime', 'format' => 'Y-m-d', 'formatter' => 'date'),
- 'binary' => array('name' => 'varbinary'),
- 'boolean' => array('name' => 'bit')
- );
- /**
- * Index of basic SQL commands
- *
- * @var array
- */
- protected $_commands = array(
- 'begin' => 'BEGIN TRANSACTION',
- 'commit' => 'COMMIT',
- 'rollback' => 'ROLLBACK'
- );
- /**
- * Magic column name used to provide pagination support for SQLServer 2008
- * which lacks proper limit/offset support.
- */
- const ROW_COUNTER = '_cake_page_rownum_';
- /**
- * The version of SQLServer being used. If greater than 11
- * Normal limit offset statements will be used
- *
- * @var string
- */
- protected $_version;
- /**
- * Connects to the database using options in the given configuration array.
- *
- * @return boolean True if the database could be connected, else false
- * @throws MissingConnectionException
- */
- public function connect() {
- $config = $this->config;
- $this->connected = false;
- try {
- $flags = array(
- PDO::ATTR_PERSISTENT => $config['persistent'],
- PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
- );
- if (!empty($config['encoding'])) {
- $flags[PDO::SQLSRV_ATTR_ENCODING] = $config['encoding'];
- }
- $this->_connection = new PDO(
- "sqlsrv:server={$config['host']};Database={$config['database']}",
- $config['login'],
- $config['password'],
- $flags
- );
- $this->connected = true;
- } catch (PDOException $e) {
- throw new MissingConnectionException(array('class' => $e->getMessage()));
- }
- $this->_version = $this->_connection->getAttribute(PDO::ATTR_SERVER_VERSION);
- return $this->connected;
- }
- /**
- * Check that PDO SQL Server is installed/loaded
- *
- * @return boolean
- */
- public function enabled() {
- return in_array('sqlsrv', PDO::getAvailableDrivers());
- }
- /**
- * Returns an array of sources (tables) in the database.
- *
- * @param mixed $data
- * @return array Array of table names in the database
- */
- public function listSources($data = null) {
- $cache = parent::listSources();
- if ($cache !== null) {
- return $cache;
- }
- $result = $this->_execute("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'");
- if (!$result) {
- $result->closeCursor();
- return array();
- } else {
- $tables = array();
- while ($line = $result->fetch()) {
- $tables[] = $line[0];
- }
- $result->closeCursor();
- parent::listSources($tables);
- return $tables;
- }
- }
- /**
- * Returns an array of the fields in given table name.
- *
- * @param Model|string $model Model object to describe, or a string table name.
- * @return array Fields in table. Keys are name and type
- * @throws CakeException
- */
- public function describe($model) {
- $cache = parent::describe($model);
- if ($cache != null) {
- return $cache;
- }
- $fields = array();
- $table = $this->fullTableName($model, false);
- $cols = $this->_execute(
- "SELECT
- COLUMN_NAME as Field,
- DATA_TYPE as Type,
- COL_LENGTH('" . $table . "', COLUMN_NAME) as Length,
- IS_NULLABLE As [Null],
- COLUMN_DEFAULT as [Default],
- COLUMNPROPERTY(OBJECT_ID('" . $table . "'), COLUMN_NAME, 'IsIdentity') as [Key],
- NUMERIC_SCALE as Size
- FROM INFORMATION_SCHEMA.COLUMNS
- WHERE TABLE_NAME = '" . $table . "'"
- );
- if (!$cols) {
- throw new CakeException(__d('cake_dev', 'Could not describe table for %s', $table));
- }
- foreach ($cols as $column) {
- $field = $column->Field;
- $fields[$field] = array(
- 'type' => $this->column($column),
- 'null' => ($column->Null === 'YES' ? true : false),
- 'default' => preg_replace("/^[(]{1,2}'?([^')]*)?'?[)]{1,2}$/", "$1", $column->Default),
- 'length' => $this->length($column),
- 'key' => ($column->Key == '1') ? 'primary' : false
- );
- if ($fields[$field]['default'] === 'null') {
- $fields[$field]['default'] = null;
- } else {
- $this->value($fields[$field]['default'], $fields[$field]['type']);
- }
- if ($fields[$field]['key'] !== false && $fields[$field]['type'] == 'integer') {
- $fields[$field]['length'] = 11;
- } elseif ($fields[$field]['key'] === false) {
- unset($fields[$field]['key']);
- }
- if (in_array($fields[$field]['type'], array('date', 'time', 'datetime', 'timestamp'))) {
- $fields[$field]['length'] = null;
- }
- if ($fields[$field]['type'] == 'float' && !empty($column->Size)) {
- $fields[$field]['length'] = $fields[$field]['length'] . ',' . $column->Size;
- }
- }
- $this->_cacheDescription($table, $fields);
- $cols->closeCursor();
- return $fields;
- }
- /**
- * Generates the fields list of an SQL query.
- *
- * @param Model $model
- * @param string $alias Alias table name
- * @param array $fields
- * @param boolean $quote
- * @return array
- */
- public function fields($model, $alias = null, $fields = array(), $quote = true) {
- if (empty($alias)) {
- $alias = $model->alias;
- }
- $fields = parent::fields($model, $alias, $fields, false);
- $count = count($fields);
- if ($count >= 1 && strpos($fields[0], 'COUNT(*)') === false) {
- $result = array();
- for ($i = 0; $i < $count; $i++) {
- $prepend = '';
- if (strpos($fields[$i], 'DISTINCT') !== false) {
- $prepend = 'DISTINCT ';
- $fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
- }
- if (!preg_match('/\s+AS\s+/i', $fields[$i])) {
- if (substr($fields[$i], -1) == '*') {
- if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') {
- $build = explode('.', $fields[$i]);
- $AssociatedModel = $model->{$build[0]};
- } else {
- $AssociatedModel = $model;
- }
- $_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema()));
- $result = array_merge($result, $_fields);
- continue;
- }
- if (strpos($fields[$i], '.') === false) {
- $this->_fieldMappings[$alias . '__' . $fields[$i]] = $alias . '.' . $fields[$i];
- $fieldName = $this->name($alias . '.' . $fields[$i]);
- $fieldAlias = $this->name($alias . '__' . $fields[$i]);
- } else {
- $build = explode('.', $fields[$i]);
- $this->_fieldMappings[$build[0] . '__' . $build[1]] = $fields[$i];
- $fieldName = $this->name($build[0] . '.' . $build[1]);
- $fieldAlias = $this->name(preg_replace("/^\[(.+)\]$/", "$1", $build[0]) . '__' . $build[1]);
- }
- if ($model->getColumnType($fields[$i]) == 'datetime') {
- $fieldName = "CONVERT(VARCHAR(20), {$fieldName}, 20)";
- }
- $fields[$i] = "{$fieldName} AS {$fieldAlias}";
- }
- $result[] = $prepend . $fields[$i];
- }
- return $result;
- } else {
- return $fields;
- }
- }
- /**
- * Generates and executes an SQL INSERT statement for given model, fields, and values.
- * Removes Identity (primary key) column from update data before returning to parent, if
- * value is empty.
- *
- * @param Model $model
- * @param array $fields
- * @param array $values
- * @return array
- */
- public function create(Model $model, $fields = null, $values = null) {
- if (!empty($values)) {
- $fields = array_combine($fields, $values);
- }
- $primaryKey = $this->_getPrimaryKey($model);
- if (array_key_exists($primaryKey, $fields)) {
- if (empty($fields[$primaryKey])) {
- unset($fields[$primaryKey]);
- } else {
- $this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' ON');
- }
- }
- $result = parent::create($model, array_keys($fields), array_values($fields));
- if (array_key_exists($primaryKey, $fields) && !empty($fields[$primaryKey])) {
- $this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' OFF');
- }
- return $result;
- }
- /**
- * Generates and executes an SQL UPDATE statement for given model, fields, and values.
- * Removes Identity (primary key) column from update data before returning to parent.
- *
- * @param Model $model
- * @param array $fields
- * @param array $values
- * @param mixed $conditions
- * @return array
- */
- public function update(Model $model, $fields = array(), $values = null, $conditions = null) {
- if (!empty($values)) {
- $fields = array_combine($fields, $values);
- }
- if (isset($fields[$model->primaryKey])) {
- unset($fields[$model->primaryKey]);
- }
- if (empty($fields)) {
- return true;
- }
- return parent::update($model, array_keys($fields), array_values($fields), $conditions);
- }
- /**
- * Returns a limit statement in the correct format for the particular database.
- *
- * @param integer $limit Limit of results returned
- * @param integer $offset Offset from which to start results
- * @return string SQL limit/offset statement
- */
- public function limit($limit, $offset = null) {
- if ($limit) {
- $rt = '';
- if (!strpos(strtolower($limit), 'top') || strpos(strtolower($limit), 'top') === 0) {
- $rt = ' TOP';
- }
- $rt .= ' ' . $limit;
- if (is_int($offset) && $offset > 0) {
- $rt = ' OFFSET ' . intval($offset) . ' ROWS FETCH FIRST ' . intval($limit) . ' ROWS ONLY';
- }
- return $rt;
- }
- return null;
- }
- /**
- * Converts database-layer column types to basic types
- *
- * @param mixed $real Either the string value of the fields type.
- * or the Result object from Sqlserver::describe()
- * @return string Abstract column type (i.e. "string")
- */
- public function column($real) {
- $limit = null;
- $col = $real;
- if (is_object($real) && isset($real->Field)) {
- $limit = $real->Length;
- $col = $real->Type;
- }
- if ($col == 'datetime2') {
- return 'datetime';
- }
- if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) {
- return $col;
- }
- if ($col == 'bit') {
- return 'boolean';
- }
- if (strpos($col, 'int') !== false) {
- return 'integer';
- }
- if (strpos($col, 'char') !== false && $limit == -1) {
- return 'text';
- }
- if (strpos($col, 'char') !== false) {
- return 'string';
- }
- if (strpos($col, 'text') !== false) {
- return 'text';
- }
- if (strpos($col, 'binary') !== false || $col == 'image') {
- return 'binary';
- }
- if (in_array($col, array('float', 'real', 'decimal', 'numeric'))) {
- return 'float';
- }
- return 'text';
- }
- /**
- * Handle SQLServer specific length properties.
- * SQLServer handles text types as nvarchar/varchar with a length of -1.
- *
- * @param mixed $length Either the length as a string, or a Column descriptor object.
- * @return mixed null|integer with length of column.
- */
- public function length($length) {
- if (is_object($length) && isset($length->Length)) {
- if ($length->Length == -1 && strpos($length->Type, 'char') !== false) {
- return null;
- }
- if (in_array($length->Type, array('nchar', 'nvarchar'))) {
- return floor($length->Length / 2);
- }
- return $length->Length;
- }
- return parent::length($length);
- }
- /**
- * Builds a map of the columns contained in a result
- *
- * @param PDOStatement $results
- * @return void
- */
- public function resultSet($results) {
- $this->map = array();
- $numFields = $results->columnCount();
- $index = 0;
- while ($numFields-- > 0) {
- $column = $results->getColumnMeta($index);
- $name = $column['name'];
- if (strpos($name, '__')) {
- if (isset($this->_fieldMappings[$name]) && strpos($this->_fieldMappings[$name], '.')) {
- $map = explode('.', $this->_fieldMappings[$name]);
- } elseif (isset($this->_fieldMappings[$name])) {
- $map = array(0, $this->_fieldMappings[$name]);
- } else {
- $map = array(0, $name);
- }
- } else {
- $map = array(0, $name);
- }
- $map[] = ($column['sqlsrv:decl_type'] == 'bit') ? 'boolean' : $column['native_type'];
- $this->map[$index++] = $map;
- }
- }
- /**
- * Builds final SQL statement
- *
- * @param string $type Query type
- * @param array $data Query data
- * @return string
- */
- public function renderStatement($type, $data) {
- switch (strtolower($type)) {
- case 'select':
- extract($data);
- $fields = trim($fields);
- if (strpos($limit, 'TOP') !== false && strpos($fields, 'DISTINCT ') === 0) {
- $limit = 'DISTINCT ' . trim($limit);
- $fields = substr($fields, 9);
- }
- // hack order as SQLServer requires an order if there is a limit.
- if ($limit && !$order) {
- $order = 'ORDER BY (SELECT NULL)';
- }
- // For older versions use the subquery version of pagination.
- if (version_compare($this->_version, '11', '<') && preg_match('/FETCH\sFIRST\s+([0-9]+)/i', $limit, $offset)) {
- preg_match('/OFFSET\s*(\d+)\s*.*?(\d+)\s*ROWS/', $limit, $limitOffset);
- $limit = 'TOP ' . intval($limitOffset[2]);
- $page = intval($limitOffset[1] / $limitOffset[2]);
- $offset = intval($limitOffset[2] * $page);
- $rowCounter = self::ROW_COUNTER;
- return "
- SELECT {$limit} * FROM (
- SELECT {$fields}, ROW_NUMBER() OVER ({$order}) AS {$rowCounter}
- FROM {$table} {$alias} {$joins} {$conditions} {$group}
- ) AS _cake_paging_
- WHERE _cake_paging_.{$rowCounter} > {$offset}
- ORDER BY _cake_paging_.{$rowCounter}
- ";
- } elseif (strpos($limit, 'FETCH') !== false) {
- return "SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order} {$limit}";
- } else {
- return "SELECT {$limit} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order}";
- }
- break;
- case "schema":
- extract($data);
- foreach ($indexes as $i => $index) {
- if (preg_match('/PRIMARY KEY/', $index)) {
- unset($indexes[$i]);
- break;
- }
- }
- foreach (array('columns', 'indexes') as $var) {
- if (is_array(${$var})) {
- ${$var} = "\t" . implode(",\n\t", array_filter(${$var}));
- }
- }
- return "CREATE TABLE {$table} (\n{$columns});\n{$indexes}";
- break;
- default:
- return parent::renderStatement($type, $data);
- break;
- }
- }
- /**
- * Returns a quoted and escaped string of $data for use in an SQL statement.
- *
- * @param string $data String to be prepared for use in an SQL statement
- * @param string $column The column into which this data will be inserted
- * @return string Quoted and escaped data
- */
- public function value($data, $column = null) {
- if (is_array($data) || is_object($data)) {
- return parent::value($data, $column);
- } elseif (in_array($data, array('{$__cakeID__$}', '{$__cakeForeignKey__$}'), true)) {
- return $data;
- }
- if (empty($column)) {
- $column = $this->introspectType($data);
- }
- switch ($column) {
- case 'string':
- case 'text':
- return 'N' . $this->_connection->quote($data, PDO::PARAM_STR);
- default:
- return parent::value($data, $column);
- }
- }
- /**
- * Returns an array of all result rows for a given SQL query.
- * Returns false if no rows matched.
- *
- * @param Model $model
- * @param array $queryData
- * @param integer $recursive
- * @return array Array of resultset rows, or false if no rows matched
- */
- public function read(Model $model, $queryData = array(), $recursive = null) {
- $results = parent::read($model, $queryData, $recursive);
- $this->_fieldMappings = array();
- return $results;
- }
- /**
- * Fetches the next row from the current result set.
- * Eats the magic ROW_COUNTER variable.
- *
- * @return mixed
- */
- public function fetchResult() {
- if ($row = $this->_result->fetch(PDO::FETCH_NUM)) {
- $resultRow = array();
- foreach ($this->map as $col => $meta) {
- list($table, $column, $type) = $meta;
- if ($table === 0 && $column === self::ROW_COUNTER) {
- continue;
- }
- $resultRow[$table][$column] = $row[$col];
- if ($type === 'boolean' && !is_null($row[$col])) {
- $resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]);
- }
- }
- return $resultRow;
- }
- $this->_result->closeCursor();
- return false;
- }
- /**
- * Inserts multiple values into a table
- *
- * @param string $table
- * @param string $fields
- * @param array $values
- * @return void
- */
- public function insertMulti($table, $fields, $values) {
- $primaryKey = $this->_getPrimaryKey($table);
- $hasPrimaryKey = $primaryKey != null && (
- (is_array($fields) && in_array($primaryKey, $fields)
- || (is_string($fields) && strpos($fields, $this->startQuote . $primaryKey . $this->endQuote) !== false))
- );
- if ($hasPrimaryKey) {
- $this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' ON');
- }
- $table = $this->fullTableName($table);
- $fields = implode(', ', array_map(array(&$this, 'name'), $fields));
- $this->begin();
- foreach ($values as $value) {
- $holder = implode(', ', array_map(array(&$this, 'value'), $value));
- $this->_execute("INSERT INTO {$table} ({$fields}) VALUES ({$holder})");
- }
- $this->commit();
- if ($hasPrimaryKey) {
- $this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' OFF');
- }
- }
- /**
- * Generate a database-native column schema string
- *
- * @param array $column An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]),
- * where options can be 'default', 'length', or 'key'.
- * @return string
- */
- public function buildColumn($column) {
- $result = preg_replace('/(int|integer)\([0-9]+\)/i', '$1', parent::buildColumn($column));
- if (strpos($result, 'DEFAULT NULL') !== false) {
- if (isset($column['default']) && $column['default'] === '') {
- $result = str_replace('DEFAULT NULL', "DEFAULT ''", $result);
- } else {
- $result = str_replace('DEFAULT NULL', 'NULL', $result);
- }
- } elseif (array_keys($column) == array('type', 'name')) {
- $result .= ' NULL';
- } elseif (strpos($result, "DEFAULT N'")) {
- $result = str_replace("DEFAULT N'", "DEFAULT '", $result);
- }
- return $result;
- }
- /**
- * Format indexes for create table
- *
- * @param array $indexes
- * @param string $table
- * @return string
- */
- public function buildIndex($indexes, $table = null) {
- $join = array();
- foreach ($indexes as $name => $value) {
- if ($name == 'PRIMARY') {
- $join[] = 'PRIMARY KEY (' . $this->name($value['column']) . ')';
- } else if (isset($value['unique']) && $value['unique']) {
- $out = "ALTER TABLE {$table} ADD CONSTRAINT {$name} UNIQUE";
- if (is_array($value['column'])) {
- $value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
- } else {
- $value['column'] = $this->name($value['column']);
- }
- $out .= "({$value['column']});";
- $join[] = $out;
- }
- }
- return $join;
- }
- /**
- * Makes sure it will return the primary key
- *
- * @param mixed $model Model instance of table name
- * @return string
- */
- protected function _getPrimaryKey($model) {
- if (!is_object($model)) {
- $model = new Model(false, $model);
- }
- $schema = $this->describe($model);
- foreach ($schema as $field => $props) {
- if (isset($props['key']) && $props['key'] == 'primary') {
- return $field;
- }
- }
- return null;
- }
- /**
- * Returns number of affected rows in previous database operation. If no previous operation exists,
- * this returns false.
- *
- * @param mixed $source
- * @return integer Number of affected rows
- */
- public function lastAffected($source = null) {
- $affected = parent::lastAffected();
- if ($affected === null && $this->_lastAffected !== false) {
- return $this->_lastAffected;
- }
- return $affected;
- }
- /**
- * Executes given SQL statement.
- *
- * @param string $sql SQL statement
- * @param array $params list of params to be bound to query (supported only in select)
- * @param array $prepareOptions Options to be used in the prepare statement
- * @return mixed PDOStatement if query executes with no problem, true as the result of a successful, false on error
- * query returning no rows, such as a CREATE statement, false otherwise
- */
- protected function _execute($sql, $params = array(), $prepareOptions = array()) {
- $this->_lastAffected = false;
- if (strncasecmp($sql, 'SELECT', 6) == 0) {
- $prepareOptions += array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL);
- return parent::_execute($sql, $params, $prepareOptions);
- }
- try {
- $this->_lastAffected = $this->_connection->exec($sql);
- if ($this->_lastAffected === false) {
- $this->_results = null;
- $error = $this->_connection->errorInfo();
- $this->error = $error[2];
- return false;
- }
- return true;
- } catch (PDOException $e) {
- if (isset($query->queryString)) {
- $e->queryString = $query->queryString;
- } else {
- $e->queryString = $sql;
- }
- throw $e;
- }
- }
- /**
- * Generate a "drop table" statement for the given Schema object
- *
- * @param CakeSchema $schema An instance of a subclass of CakeSchema
- * @param string $table Optional. If specified only the table name given will be generated.
- * Otherwise, all tables defined in the schema are generated.
- * @return string
- */
- public function dropSchema(CakeSchema $schema, $table = null) {
- $out = '';
- foreach ($schema->tables as $curTable => $columns) {
- if (!$table || $table == $curTable) {
- $t = $this->fullTableName($curTable);
- $out .= "IF OBJECT_ID('" . $this->fullTableName($curTable, false). "', 'U') IS NOT NULL DROP TABLE " . $this->fullTableName($curTable) . ";\n";
- }
- }
- return $out;
- }
- }