OpenSQLManager/src/databases/sqlite.php

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<?php
/**
* OpenSQLManager
*
* Free Database manager for Open Source Databases
*
* @author Timothy J. Warren
* @copyright Copyright (c) 2012
* @link https://github.com/aviat4ion/OpenSQLManager
* @license http://philsturgeon.co.uk/code/dbad-license
*/
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// --------------------------------------------------------------------------
/**
* SQLite specific class
*
* @extends DB_PDO
*/
class SQLite extends DB_PDO {
/**
* Open SQLite Database
*
* @param string $dsn
*/
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function __construct($dsn)
{
// DSN is simply `sqlite:/path/to/db`
parent::__construct("sqlite:{$dsn}");
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$class = __CLASS__."_manip";
$this->manip = new $class;
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}
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/**
* Empty a table
*
* @param string $table
*/
function truncate($table)
{
// SQLite has a TRUNCATE optimization,
// but no support for the actual command.
$sql = <<<SQL DELETE FROM "{$table}""
SQL;
$this->query($sql);
}
/**
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* List tables for the current database
*
* @return mixed
*/
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function get_tables()
{
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$tables = array();
$sql = <<<SQL SELECT "name", "sql" FROM "sqlite_master" WHERE type='table'
SQL;
$res = $this->query($sql);
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$result = $res->fetchAll(PDO::FETCH_ASSOC);
foreach($result as $r)
{
$tables[$r['name']] = $r['sql'];
}
return $tables;
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}
/**
* List system tables for the current database
*
* @return array
*/
function get_system_tables()
{
$sql= <<< SQL
SELECT "name", "type"
FROM sqlite_master
WHERE "type" IN ('table', 'view')
AND "name" NOT LIKE 'sqlite?_%' escape '?'
SQL;
$res = $this->query($sql);
$result = $res->fetchAll(PDO::FETCH_ASSOC);
return $result;
}
/**
* Load a database for the current connection
*
* @param string $db
* @param string $name
*/
function load_database($db, $name)
{
$sql = <<< SQL
ATTACH DATABASE '{$db}' AS "{$name}"
SQL;
$this->query($sql);
}
/**
* Unload a database from the current connection
*
* @param string $name
*/
function unload_database($name)
{
$sql = <<< SQL DETACH DATABASE "{$name}""
SQL;
$this->query($sql);
}
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/**
* Return the number of rows returned for a SELECT query
*
* @return int
*/
function num_rows()
{
// TODO: Implement
}
}
//End of sqlite.php