183 lines
3.2 KiB
PHP
183 lines
3.2 KiB
PHP
<?php
|
|
/**
|
|
* Query
|
|
*
|
|
* Free Query Builder / Database Abstraction Layer
|
|
*
|
|
* @package Query
|
|
* @author Timothy J. Warren
|
|
* @copyright Copyright (c) 2012
|
|
* @link https://github.com/aviat4ion/Query
|
|
* @license http://philsturgeon.co.uk/code/dbad-license
|
|
*/
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* SQLite Specific SQL
|
|
*
|
|
* @package Query
|
|
* @subpackage Drivers
|
|
*/
|
|
class SQLite_SQL extends DB_SQL {
|
|
|
|
/**
|
|
* Limit clause
|
|
*
|
|
* @param string $sql
|
|
* @param int $limit
|
|
* @param int $offset
|
|
* @return string
|
|
*/
|
|
public function limit($sql, $limit, $offset=FALSE)
|
|
{
|
|
if ( ! is_numeric($offset))
|
|
{
|
|
return $sql." LIMIT {$limit}";
|
|
}
|
|
|
|
return $sql." LIMIT {$offset}, {$limit}";
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Random ordering keyword
|
|
*
|
|
* @return string
|
|
*/
|
|
public function random()
|
|
{
|
|
return ' RANDOM()';
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Returns sql to list other databases
|
|
*
|
|
* @return FALSE
|
|
*/
|
|
public function db_list()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Returns sql to list tables
|
|
*
|
|
* @return string
|
|
*/
|
|
public function table_list()
|
|
{
|
|
return <<<SQL
|
|
SELECT "name"
|
|
FROM "sqlite_master"
|
|
WHERE "type"='table'
|
|
ORDER BY "name" DESC
|
|
SQL;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Overridden in SQLite class
|
|
*
|
|
* @return string
|
|
*/
|
|
public function system_table_list()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Returns sql to list views
|
|
*
|
|
* @return string
|
|
*/
|
|
public function view_list()
|
|
{
|
|
return <<<SQL
|
|
SELECT "name" FROM "sqlite_master" WHERE "type" = 'view'
|
|
SQL;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Returns sql to list triggers
|
|
*
|
|
* @return FALSE
|
|
*/
|
|
public function trigger_list()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Return sql to list functions
|
|
*
|
|
* @return FALSE
|
|
*/
|
|
public function function_list()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Return sql to list stored procedures
|
|
*
|
|
* @return FALSE
|
|
*/
|
|
public function procedure_list()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Return sql to list sequences
|
|
*
|
|
* @return FALSE
|
|
*/
|
|
public function sequence_list()
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* SQL to show list of field types
|
|
*
|
|
* @return array
|
|
*/
|
|
public function type_list()
|
|
{
|
|
return array('INTEGER', 'REAL', 'TEXT', 'BLOB');
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
|
|
/**
|
|
* SQL to show infromation about columns in a table
|
|
*
|
|
* @param string $table
|
|
* @return string
|
|
*/
|
|
public function column_list($table)
|
|
{
|
|
return 'PRAGMA table_info("'.$table.'")';
|
|
}
|
|
|
|
}
|
|
//End of sqlite_sql.php
|