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OpenSQLManager/databases/firebird.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
*/
// --------------------------------------------------------------------------
/**
* Firebird Database class
*
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* PDO-firebird isn't stable, so this is a wrapper of the ibase_ public functions.
*/
class firebird extends DB_PDO {
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protected $conn, $statement, $trans, $count, $result;
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/**
* Open the link to the database
*
* @param string $db
* @param string $user
* @param string $pass
*/
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public function __construct($dbpath, $user="sysdba", $pass="masterkey")
{
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$this->conn = ibase_connect($dbpath, $user, $pass);
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$class = __CLASS__."_manip";
$this->manip = new $class;
}
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/**
* Close the link to the database
*/
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public function __destruct()
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{
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@ibase_close($this->conn);
@ibase_free_result($this->statement);
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}
/**
* Empty a database table
*
* @param string $table
*/
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public function truncate($table)
{
// Firebird lacka a truncate command
$sql = 'DELETE FROM '.$table.'"';
$this->query($sql);
}
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/**
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* Wrapper public function to better match PDO
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*
* @param string $sql
* @param array $params
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* @return resource
*/
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public function query($sql)
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{
$this->count = 0;
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$this->statement = ibase_query($this->conn, $sql);
return $this->statement;
}
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/**
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* Emulate PDO fetch public function
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*
* @param int $fetch_style
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* @return mixed
*/
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public function fetch($fetch_style=PDO::FETCH_ASSOC)
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{
switch($fetch_style)
{
case PDO::FETCH_OBJ:
return ibase_fetch_object($this->statement, IBASE_FETCH_BLOBS);
break;
case PDO::FETCH_NUM:
return ibase_fetch_row($this->statement, IBASE_FETCH_BLOBS);
break;
default:
return ibase_fetch_assoc($this->statement, IBASE_FETCH_BLOBS);
break;
}
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}
/**
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* Emulate PDO fetchAll public function
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*
* @param int $fetch_style
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* @return mixed
*/
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public function fetchAll($fetch_style=PDO::FETCH_ASSOC)
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{
$all = array();
while($row = $this->fetch($fetch_style))
{
$all[] = $row;
}
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$this->result = $all;
return $all;
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}
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/**
* Emulate PDO prepare
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*
* @param string $query
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* @return resource
*/
public function prepare($query)
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{
$this->statement = ibase_prepare($this->conn, $query);
return $this->statement;
}
/**
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* List tables for the current database
*
* @return array
*/
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public function get_tables()
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{
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$sql = <<<SQL
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SELECT "RDB\$RELATION_NAME" FROM "RDB\$RELATIONS"
WHERE "RDB\$RELATION_NAME" NOT LIKE 'RDB$%'
AND "RDB\$RELATION_NAME" NOT LIKE 'MON$%'
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SQL;
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$this->statement = $this->query($sql);
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$tables = array();
while($row = $this->fetch(PDO::FETCH_ASSOC))
{
$tables[] = $row['RDB$RELATION_NAME'];
}
return $tables;
}
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/**
* List system tables for the current database
*
* @return array
*/
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public function get_system_tables()
{
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$sql = <<<SQL
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SELECT "RDB\$RELATION_NAME" FROM "RDB\$RELATIONS"
WHERE "RDB\$RELATION_NAME" LIKE 'RDB$%'
OR "RDB\$RELATION_NAME" LIKE 'MON$%';
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SQL;
$this->statement = $this->query($sql);
$tables = array();
while($row = $this->fetch(PDO::FETCH_ASSOC))
{
$tables[] = $row['RDB$RELATION_NAME'];
}
return $tables;
}
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/**
* Return the number of rows affected by the previous query
*
* @return int
*/
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public function affected_rows()
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{
return ibase_affected_rows($this->conn);
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}
/**
* Return the number of rows returned for a SELECT query
*
* @return int
*/
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public function num_rows()
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{
// @todo: Redo this similar to the codeigniter driver
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if(isset($this->result))
{
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return count($this->result);
}
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//Fetch all the rows for the result
$this->result = $this->fetchAll();
return count($this->result);
}
/**
* Start a database transaction
*
* @return bool
*/
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public function beginTransaction()
{
if(($this->trans = ibase_trans($this->conn)) !== NULL)
{
return TRUE;
}
return FALSE;
}
/**
* Commit a database transaction
*
* @return bool
*/
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public function commit()
{
return ibase_commit($this->trans);
}
/**
* Rollback a transaction
*
* @return bool
*/
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public function rollBack()
{
return ibase_rollback($this->trans);
}
/**
* Run a prepared statement query
*
* @param array $args
* @return bool
*/
public function execute($args)
{
//Add the prepared statement as the first parameter
array_unshift($args, $this->statement);
// Let php do all the hard stuff in converting
// the array of arguments into a list of arguments
return call_user_func_array('ibase_execute', $args);
}
/**
* Prepare and execute a query
*
* @param string $sql
* @param array $args
* @return resource
*/
public function prepare_execute($sql, $args)
{
$query = $this->prepare($sql);
// Set the statement in the class variable for easy later access
$this->statement =& $query;
return $this->execute($args);
}
/**
* Bind a prepared query with arguments for executing
*
* @param string $sql
* @param mixed $args
* @return FALSE
*/
public function prepare_query($sql, $args)
{
// You can't bind query statements before execution with
// the firebird database
return FALSE;
}
}
// End of firebird.php