Файл: vzabave/sys/db_class.php
Строк: 170
<?php
// Класс для работы с бд
class sql_db
{
var $db_connect_id;
var $query_result;
var $row = array();
var $rowset = array();
var $num_queries = 0;
var $in_transaction = 0;
// Подключение
function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
{
$this->persistency = $persistency;
$this->user = $sqluser;
$this->password = $sqlpassword;
$this->server = $sqlserver;
$this->dbname = $database;
$this->db_connect_id = ($this->persistency) ? mysql_pconnect($this->server, $this->user, $this->password) : mysql_connect($this->server, $this->user, $this->password);
if( $this->db_connect_id )
{
if( $database != "" )
{
$this->dbname = $database;
$dbselect = mysql_select_db($this->dbname);
if( !$dbselect )
{
mysql_close($this->db_connect_id);
$this->db_connect_id = $dbselect;
}
}
return $this->db_connect_id;
}
else
{
return false;
}
}
// Закрытие подключения
function sql_close()
{
if( $this->db_connect_id )
{
if( $this->in_transaction )
{
mysql_query("COMMIT", $this->db_connect_id);
}
return mysql_close($this->db_connect_id);
}
else
{
return false;
}
}
// query
function sql_query($query = "", $transaction = FALSE)
{
unset($this->query_result);
if( $query != "" )
{
$this->num_queries++;
if( $transaction == "BEGIN_TRANSACTION" && !$this->in_transaction )
{
$result = mysql_query("BEGIN", $this->db_connect_id);
if(!$result)
{
return false;
}
$this->in_transaction = TRUE;
}
$this->query_result = mysql_query($query, $this->db_connect_id);
}
else
{
if( $transaction == "END_TRANSACTION" && $this->in_transaction )
{
$result = mysql_query("COMMIT", $this->db_connect_id);
}
}
if( $this->query_result )
{
unset($this->row[$this->query_result]);
unset($this->rowset[$this->query_result]);
if( $transaction == "END_TRANSACTION" && $this->in_transaction )
{
$this->in_transaction = FALSE;
if ( !mysql_query("COMMIT", $this->db_connect_id) )
{
mysql_query("ROLLBACK", $this->db_connect_id);
return false;
}
}
return $this->query_result;
}
else
{
if( $this->in_transaction )
{
mysql_query("ROLLBACK", $this->db_connect_id);
$this->in_transaction = FALSE;
}
return false;
}
}
// mysql_num_rows
function sql_numrows($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? mysql_num_rows($query_id) : false;
}
// mysql_affected_rows
function sql_affectedrows()
{
return ( $this->db_connect_id ) ? mysql_affected_rows($this->db_connect_id) : false;
}
// mysql_num_fields
function sql_numfields($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? mysql_num_fields($query_id) : false;
}
// mysql_field_name
function sql_fieldname($offset, $query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? mysql_field_name($query_id, $offset) : false;
}
// mysql_field_type
function sql_fieldtype($offset, $query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? mysql_field_type($query_id, $offset) : false;
}
// sql_fetchrow
function sql_fetchrow($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
if( $query_id )
{
$this->row[$query_id] = mysql_fetch_array($query_id, MYSQL_ASSOC);
return $this->row[$query_id];
}
else
{
return false;
}
}
// sql_fetchrowset
function sql_fetchrowset($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
if( $query_id )
{
unset($this->rowset[$query_id]);
unset($this->row[$query_id]);
while($this->rowset[$query_id] = mysql_fetch_array($query_id, MYSQL_ASSOC))
{
$result[] = $this->rowset[$query_id];
}
return $result;
}
else
{
return false;
}
}
// mysql_result
function sql_fetchfield($field, $rownum = -1)
{
if( $rownum > -1 )
{
$result = mysql_result($field, $rownum);
}
else
{
if( empty($this->row[$query_id]) && empty($this->rowset[$query_id]) )
{
if( $this->sql_fetchrow() )
{
$result = $this->row[$query_id][$field];
}
}
else
{
if( $this->rowset[$query_id] )
{
$result = $this->rowset[$query_id][0][$field];
}
else if( $this->row[$query_id] )
{
$result = $this->row[$query_id][$field];
}
}
}
return $result;
}
// mysql_data_seek
function sql_rowseek($rownum, $query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
return ( $query_id ) ? mysql_data_seek($query_id, $rownum) : false;
}
// mysql_insert_id
function sql_nextid()
{
return ( $this->db_connect_id ) ? mysql_insert_id($this->db_connect_id) : false;
}
// mysql_query
function sql_freeresult($query_id = 0)
{
if( !$query_id )
{
$query_id = $this->query_result;
}
if ( $query_id )
{
unset($this->row[$query_id]);
unset($this->rowset[$query_id]);
mysql_free_result($query_id);
return true;
}
else
{
return false;
}
}
// mysql_error и mysql_errno
function sql_error()
{
$result['message'] = mysql_error($this->db_connect_id);
$result['code'] = mysql_errno($this->db_connect_id);
return $result;
}
}
?>