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<?php
namespace {
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Db
* @subpackage Adapter
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Sqlite.php 23775 2011-03-01 17:25:24Z ralph $
*/
/**
* @see Zend_Db_Adapter_Pdo_Abstract
*/
// require_once 'Zend/Db/Adapter/Pdo/Abstract.php';
/**
* Class for connecting to SQLite2 and SQLite3 databases and performing common operations.
*
* @category Zend
* @package Zend_Db
* @subpackage Adapter
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Db_Adapter_Pdo_Sqlite extends \Zend_Db_Adapter_Pdo_Abstract
{
/**
* PDO type
*
* @var string
*/
protected $_pdoType = 'sqlite';
/**
* Keys are UPPERCASE SQL datatypes or the constants
* Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE.
*
* Values are:
* 0 = 32-bit integer
* 1 = 64-bit integer
* 2 = float or decimal
*
* @var array Associative array of datatypes to values 0, 1, or 2.
*/
protected $_numericDataTypes = array(\Zend_Db::INT_TYPE => \Zend_Db::INT_TYPE, \Zend_Db::BIGINT_TYPE => \Zend_Db::BIGINT_TYPE, \Zend_Db::FLOAT_TYPE => \Zend_Db::FLOAT_TYPE, 'INTEGER' => \Zend_Db::BIGINT_TYPE, 'REAL' => \Zend_Db::FLOAT_TYPE);
/**
* Constructor.
*
* $config is an array of key/value pairs containing configuration
* options. Note that the SQLite options are different than most of
* the other PDO adapters in that no username or password are needed.
* Also, an extra config key "sqlite2" specifies compatibility mode.
*
* dbname => (string) The name of the database to user (required,
* use :memory: for memory-based database)
*
* sqlite2 => (boolean) PDO_SQLITE defaults to SQLite 3. For compatibility
* with an older SQLite 2 database, set this to TRUE.
*
* @param array $config An array of configuration keys.
*/
public function __construct(array $config = array())
{
if (isset($config['sqlite2']) && $config['sqlite2']) {
$this->_pdoType = 'sqlite2';
}
// SQLite uses no username/password. Stub to satisfy parent::_connect()
$this->_config['username'] = null;
$this->_config['password'] = null;
parent::__construct($config);
}
/**
* Check for config options that are mandatory.
* Throw exceptions if any are missing.
*
* @param array $config
* @throws Zend_Db_Adapter_Exception
*/
protected function _checkRequiredOptions(array $config)
{
// we need at least a dbname
if (!\array_key_exists('dbname', $config)) {
/** @see Zend_Db_Adapter_Exception */
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception("Configuration array must have a key for 'dbname' that names the database instance");
}
}
/**
* DSN builder
*/
protected function _dsn()
{
return $this->_pdoType . ':' . $this->_config['dbname'];
}
/**
* Special configuration for SQLite behavior: make sure that result sets
* contain keys like 'column' instead of 'table.column'.
*
* @throws Zend_Db_Adapter_Exception
*/
protected function _connect()
{
/**
* if we already have a PDO object, no need to re-connect.
*/
if ($this->_connection) {
return;
}
parent::_connect();
$retval = $this->_connection->exec('PRAGMA full_column_names=0');
if ($retval === \false) {
$error = $this->_connection->errorInfo();
/** @see Zend_Db_Adapter_Exception */
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception($error[2]);
}
$retval = $this->_connection->exec('PRAGMA short_column_names=1');
if ($retval === \false) {
$error = $this->_connection->errorInfo();
/** @see Zend_Db_Adapter_Exception */
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception($error[2]);
}
}
/**
* Returns a list of the tables in the database.
*
* @return array
*/
public function listTables()
{
$sql = "SELECT name FROM sqlite_master WHERE type='table' " . "UNION ALL SELECT name FROM sqlite_temp_master " . "WHERE type='table' ORDER BY name";
return $this->fetchCol($sql);
}
/**
* Returns the column descriptions for a table.
*
* The return value is an associative array keyed by the column name,
* as returned by the RDBMS.
*
* The value of each array element is an associative array
* with the following keys:
*
* SCHEMA_NAME => string; name of database or schema
* TABLE_NAME => string;
* COLUMN_NAME => string; column name
* COLUMN_POSITION => number; ordinal position of column in table
* DATA_TYPE => string; SQL datatype name of column
* DEFAULT => string; default expression of column, null if none
* NULLABLE => boolean; true if column can have nulls
* LENGTH => number; length of CHAR/VARCHAR
* SCALE => number; scale of NUMERIC/DECIMAL
* PRECISION => number; precision of NUMERIC/DECIMAL
* UNSIGNED => boolean; unsigned property of an integer type
* PRIMARY => boolean; true if column is part of the primary key
* PRIMARY_POSITION => integer; position of column in primary key
* IDENTITY => integer; true if column is auto-generated with unique values
*
* @param string $tableName
* @param string $schemaName OPTIONAL
* @return array
*/
public function describeTable($tableName, $schemaName = null)
{
$sql = 'PRAGMA ';
if ($schemaName) {
$sql .= $this->quoteIdentifier($schemaName) . '.';
}
$sql .= 'table_info(' . $this->quoteIdentifier($tableName) . ')';
$stmt = $this->query($sql);
/**
* Use FETCH_NUM so we are not dependent on the CASE attribute of the PDO connection
*/
$result = $stmt->fetchAll(\Zend_Db::FETCH_NUM);
$cid = 0;
$name = 1;
$type = 2;
$notnull = 3;
$dflt_value = 4;
$pk = 5;
$desc = array();
$p = 1;
foreach ($result as $key => $row) {
list($length, $scale, $precision, $primary, $primaryPosition, $identity) = array(null, null, null, \false, null, \false);
if (\preg_match('/^((?:var)?char)\\((\\d+)\\)/i', $row[$type], $matches)) {
$row[$type] = $matches[1];
$length = $matches[2];
} else {
if (\preg_match('/^decimal\\((\\d+),(\\d+)\\)/i', $row[$type], $matches)) {
$row[$type] = 'DECIMAL';
$precision = $matches[1];
$scale = $matches[2];
}
}
if ((bool) $row[$pk]) {
$primary = \true;
$primaryPosition = $p;
/**
* SQLite INTEGER primary key is always auto-increment.
*/
$identity = (bool) ($row[$type] == 'INTEGER');
++$p;
}
$desc[$this->foldCase($row[$name])] = array(
'SCHEMA_NAME' => $this->foldCase($schemaName),
'TABLE_NAME' => $this->foldCase($tableName),
'COLUMN_NAME' => $this->foldCase($row[$name]),
'COLUMN_POSITION' => $row[$cid] + 1,
'DATA_TYPE' => $row[$type],
'DEFAULT' => $row[$dflt_value],
'NULLABLE' => !(bool) $row[$notnull],
'LENGTH' => $length,
'SCALE' => $scale,
'PRECISION' => $precision,
'UNSIGNED' => null,
// Sqlite3 does not support unsigned data
'PRIMARY' => $primary,
'PRIMARY_POSITION' => $primaryPosition,
'IDENTITY' => $identity,
);
}
return $desc;
}
/**
* Adds an adapter-specific LIMIT clause to the SELECT statement.
*
* @param string $sql
* @param integer $count
* @param integer $offset OPTIONAL
* @return string
*/
public function limit($sql, $count, $offset = 0)
{
$count = \intval($count);
if ($count <= 0) {
/** @see Zend_Db_Adapter_Exception */
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception("LIMIT argument count={$count} is not valid");
}
$offset = \intval($offset);
if ($offset < 0) {
/** @see Zend_Db_Adapter_Exception */
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception("LIMIT argument offset={$offset} is not valid");
}
$sql .= " LIMIT {$count}";
if ($offset > 0) {
$sql .= " OFFSET {$offset}";
}
return $sql;
}
}
}