OpenSQLManager/src/databases/firebird.php

252 lines
4.1 KiB
PHP

<?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
*/
// --------------------------------------------------------------------------
/**
* Firebird Database class
*
* PDO-firebird isn't stable, so this is a wrapper of the ibase_ functions.
*/
class firebird {
protected $conn, $statement, $trans;
private $esc_char = "''";
/**
* Open the link to the database
*
* @param string $db
* @param string $user
* @param string $pass
*/
function __construct($dbpath, $user="sysdba", $pass="masterkey")
{
$this->conn = ibase_connect($dbpath, $user, $pass);
$class = __CLASS__."_manip";
$this->manip = new $class;
}
/**
* Close the link to the database
*/
function __destruct()
{
@ibase_close($this->conn);
@ibase_free_result($this->statement);
}
/**
* Empty a database table
*
* @param string $table
*/
function truncate($table)
{
// Firebird lacka a truncate command
$sql = 'DELETE FROM '.$table.'"';
$this->query($sql);
}
/**
* Wrapper function to better match PDO
*
* @param string $sql
* @return resource
*/
function query($sql)
{
$this->statement = ibase_query($this->conn, $sql);
return $this->statement;
}
/**
* Emulate PDO fetch function
*
* @param int $fetch_style
* @return mixed
*/
function fetch($fetch_style=PDO::FETCH_ASSOC)
{
switch($fetch_style)
{
case PDO::FETCH_OBJ:
return ibase_fetch_object($this->statement);
break;
case PDO::FETCH_NUM:
return ibase_fetch_row($this->statement);
break;
case PDO::FETCH_BOTH:
return array_merge(
ibase_fetch_row($this->statement),
ibase_fetch_assoc($this->statement)
);
break;
default:
return ibase_fetch_assoc($this->statement);
break;
}
}
/**
* Emulate PDO fetchAll function
*
* @param int $fetch_style
* @return mixed
*/
function fetchAll($fetch_style=PDO::FETCH_ASSOC)
{
$all = array();
while($row = $this->fetch($fetch_style))
{
$all[] = $row;
}
return $all;
}
/**
* Emulate PDO prepare
*
* @return resource
*/
function prepare()
{
$this->statement = ibase_prepare($this->conn, $query);
return $this->statement;
}
/**
* List tables for the current database
*
* @return array
*/
function get_tables()
{
$sql = <<<SQL
SELECT "RDB\$RELATION_NAME" FROM "RDB\$RELATIONS"
WHERE "RDB\$RELATION_NAME" NOT LIKE 'RDB$%'
AND "RDB\$RELATION_NAME" NOT LIKE 'MON$%'
SQL;
$this->statement = $this->query($sql);
$tables = array();
while($row = $this->fetch(PDO::FETCH_ASSOC))
{
$tables[] = $row['RDB$RELATION_NAME'];
}
return $tables;
}
/**
* List system tables for the current database
*
* @return array
*/
function get_system_tables()
{
$sql = <<<SQL
SELECT "RDB\$RELATION_NAME" FROM "RDB\$RELATIONS"
WHERE "RDB\$RELATION_NAME" LIKE 'RDB$%'
OR "RDB\$RELATION_NAME" LIKE 'MON$%';
SQL;
$this->statement = $this->query($sql);
$tables = array();
while($row = $this->fetch(PDO::FETCH_ASSOC))
{
$tables[] = $row['RDB$RELATION_NAME'];
}
return $tables;
}
/**
* Return the number of rows affected by the previous query
*
* @return int
*/
function affected_rows()
{
return ibase_affected_rows($this->conn);
}
/**
* Return the number of rows returned for a SELECT query
*
* @return int
*/
function num_rows()
{
$count = 0;
if(isset($this->statement))
{
while($row = $this->fetch())
{
$count++;
}
}
else
{
return FALSE;
}
return $count;
}
/**
* Start a database transaction
*
* @return resource
*/
function beginTransaction()
{
if($this->trans = ibase_trans($this->conn) !== null)
{
return TRUE;
}
return FALSE;
}
/**
* Commit a database transaction
*
* @return bool
*/
function commit()
{
return ibase_commit($this->trans);
}
/**
* Rollback a transaction
*
* @return bool
*/
function rollBack()
{
return ibase_rollback($this->trans);
}
}
// End of firebird.php