mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-28 10:53:39 +01:00
619 lines
14 KiB
PHP
619 lines
14 KiB
PHP
<?php
|
|
/**************************************************************************\
|
|
* phpGroupWare API - MySQL database support *
|
|
* Copyright (c) 1998-2000 NetUSE AG Boris Erdmann, Kristian Koehntopp *
|
|
* ------------------------------------------------------------------------ *
|
|
* This is not part of phpGroupWare, but is used by phpGroupWare. *
|
|
* http://www.phpgroupware.org/ *
|
|
* ------------------------------------------------------------------------ *
|
|
* This program is free software; you can redistribute it and/or modify it *
|
|
* under the terms of the GNU Lesser General Public License as published *
|
|
* by the Free Software Foundation; either version 2.1 of the License, or *
|
|
* any later version. *
|
|
\**************************************************************************/
|
|
|
|
/* $Id$ */
|
|
|
|
class db
|
|
{
|
|
/* public: connection parameters */
|
|
var $Host = '';
|
|
var $Database = '';
|
|
var $User = '';
|
|
var $Password = '';
|
|
|
|
/* public: configuration parameters */
|
|
var $use_pconnect = True;
|
|
var $auto_stripslashes = False;
|
|
var $Auto_Free = 0; ## Set to 1 for automatic mysql_free_result()
|
|
var $Debug = 0; ## Set to 1 for debugging messages.
|
|
var $Halt_On_Error = 'yes'; ## "yes" (halt with message), "no" (ignore errors quietly), "report" (ignore errror, but spit a warning)
|
|
var $Seq_Table = 'db_sequence';
|
|
|
|
/* public: result array and current row number */
|
|
var $Record = array();
|
|
var $Row;
|
|
|
|
/* public: current error number and error text */
|
|
var $Errno = 0;
|
|
var $Error = '';
|
|
|
|
/* public: this is an api revision, not a CVS revision. */
|
|
var $type = 'mysql';
|
|
var $revision = '1.2';
|
|
|
|
/* private: link and query handles */
|
|
var $Link_ID = 0;
|
|
var $Query_ID = 0;
|
|
|
|
/* public: constructor */
|
|
function db($query = '')
|
|
{
|
|
$this->query($query);
|
|
}
|
|
|
|
/* public: some trivial reporting */
|
|
function link_id()
|
|
{
|
|
return $this->Link_ID;
|
|
}
|
|
|
|
function query_id()
|
|
{
|
|
return $this->Query_ID;
|
|
}
|
|
|
|
/* public: connection management */
|
|
function connect($Database = '', $Host = '', $User = '', $Password = '')
|
|
{
|
|
/* Handle defaults */
|
|
if ('' == $Database)
|
|
{
|
|
$Database = $this->Database;
|
|
}
|
|
if ('' == $Host)
|
|
{
|
|
$Host = $this->Host;
|
|
}
|
|
if ('' == $User)
|
|
{
|
|
$User = $this->User;
|
|
}
|
|
if ('' == $Password)
|
|
{
|
|
$Password = $this->Password;
|
|
}
|
|
/* establish connection, select database */
|
|
if ( 0 == $this->Link_ID )
|
|
{
|
|
if ($this->use_pconnect)
|
|
{
|
|
$this->Link_ID=mysql_pconnect($Host, $User, $Password);
|
|
}
|
|
else
|
|
{
|
|
$this->Link_ID=mysql_connect($Host, $User, $Password);
|
|
}
|
|
|
|
if (!$this->Link_ID)
|
|
{
|
|
$this->halt("connect($Host, $User, \$Password) failed.");
|
|
return 0;
|
|
}
|
|
|
|
if (!@mysql_select_db($Database,$this->Link_ID))
|
|
{
|
|
$this->halt("cannot use database ".$this->Database);
|
|
return 0;
|
|
}
|
|
}
|
|
return $this->Link_ID;
|
|
}
|
|
|
|
/* This only affects systems not using persistant connections */
|
|
function disconnect()
|
|
{
|
|
if($this->Link_ID <> 0)
|
|
{
|
|
@mysql_close($this->Link_ID);
|
|
$this->Link_ID = 0;
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
function db_addslashes($str)
|
|
{
|
|
if (!IsSet($str) || $str == '')
|
|
return '';
|
|
|
|
return addslashes($str);
|
|
}
|
|
|
|
function to_timestamp($epoch)
|
|
{
|
|
return date('Y-m-d H:i:s',$epoch);
|
|
}
|
|
|
|
function from_timestamp($timestamp)
|
|
{
|
|
ereg('([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})',$timestamp,$parts);
|
|
|
|
return mktime($parts[4],$parts[5],$parts[6],$parts[2],$parts[3],$parts[1]);
|
|
}
|
|
|
|
function limit($start)
|
|
{
|
|
global $phpgw_info;
|
|
|
|
echo '<b>Warning: limit() is no longer used, use limit_query()</b>';
|
|
|
|
if ($start == 0)
|
|
{
|
|
$s = 'limit ' . $phpgw_info['user']['preferences']['common']['maxmatchs'];
|
|
}
|
|
else
|
|
{
|
|
$s = "limit $start," . $phpgw_info['user']['preferences']['common']['maxmatchs'];
|
|
}
|
|
return $s;
|
|
}
|
|
|
|
/* public: discard the query result */
|
|
function free()
|
|
{
|
|
@mysql_free_result($this->Query_ID);
|
|
$this->Query_ID = 0;
|
|
}
|
|
|
|
/* public: perform a query */
|
|
/* I added the line and file section so we can have better error reporting. (jengo) */
|
|
function query($Query_String, $line = '', $file = '')
|
|
{
|
|
/* No empty queries, please, since PHP4 chokes on them. */
|
|
/* The empty query string is passed on from the constructor,
|
|
* when calling the class without a query, e.g. in situations
|
|
* like these: '$db = new db_Subclass;'
|
|
*/
|
|
if ($Query_String == '')
|
|
{
|
|
return 0;
|
|
}
|
|
if (!$this->connect())
|
|
{
|
|
return 0; /* we already complained in connect() about that. */
|
|
};
|
|
|
|
# New query, discard previous result.
|
|
if ($this->Query_ID)
|
|
{
|
|
$this->free();
|
|
}
|
|
|
|
if ($this->Debug)
|
|
{
|
|
printf("Debug: query = %s<br>\n", $Query_String);
|
|
}
|
|
|
|
$this->Query_ID = @mysql_query($Query_String,$this->Link_ID);
|
|
$this->Row = 0;
|
|
$this->Errno = mysql_errno();
|
|
$this->Error = mysql_error();
|
|
if (! $this->Query_ID)
|
|
{
|
|
$this->halt("Invalid SQL: ".$Query_String, $line, $file);
|
|
}
|
|
|
|
# Will return nada if it fails. That's fine.
|
|
return $this->Query_ID;
|
|
}
|
|
|
|
// public: perform a query with limited result set
|
|
function limit_query($Query_String, $offset, $line = '', $file = '', $num_rows = '')
|
|
{
|
|
global $phpgw_info;
|
|
|
|
if (! $num_rows)
|
|
{
|
|
$num_rows = $phpgw_info['user']['preferences']['common']['maxmatchs'];
|
|
}
|
|
|
|
if ($offset == 0)
|
|
{
|
|
$Query_String .= ' LIMIT ' . $num_rows;
|
|
}
|
|
else
|
|
{
|
|
$Query_String .= ' LIMIT ' . $offset . ',' . $num_rows;
|
|
}
|
|
|
|
if ($this->Debug)
|
|
{
|
|
printf("Debug: limit_query = %s<br>offset=%d, num_rows=%d<br>\n", $Query_String, $offset, $num_rows);
|
|
}
|
|
|
|
return $this->query($Query_String, $line, $file);
|
|
}
|
|
|
|
/* public: walk result set */
|
|
function next_record()
|
|
{
|
|
if (!$this->Query_ID)
|
|
{
|
|
$this->halt('next_record called with no query pending.');
|
|
return 0;
|
|
}
|
|
|
|
$this->Record = @mysql_fetch_array($this->Query_ID);
|
|
$this->Row += 1;
|
|
$this->Errno = mysql_errno();
|
|
$this->Error = mysql_error();
|
|
|
|
$stat = is_array($this->Record);
|
|
if (!$stat && $this->Auto_Free)
|
|
{
|
|
$this->free();
|
|
}
|
|
return $stat;
|
|
}
|
|
|
|
/* public: position in result set */
|
|
function seek($pos = 0)
|
|
{
|
|
$status = @mysql_data_seek($this->Query_ID, $pos);
|
|
if ($status)
|
|
{
|
|
$this->Row = $pos;
|
|
}
|
|
else
|
|
{
|
|
$this->halt("seek($pos) failed: result has ".$this->num_rows()." rows");
|
|
/* half assed attempt to save the day,
|
|
* but do not consider this documented or even
|
|
* desireable behaviour.
|
|
*/
|
|
@mysql_data_seek($this->Query_ID, $this->num_rows());
|
|
$this->Row = $this->num_rows;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
function transaction_begin()
|
|
{
|
|
return True;
|
|
}
|
|
|
|
function transaction_commit()
|
|
{
|
|
return True;
|
|
}
|
|
|
|
function transaction_abort()
|
|
{
|
|
return True;
|
|
}
|
|
|
|
function get_last_insert_id($table, $field)
|
|
{
|
|
/* This will get the last insert ID created on the current connection. Should only be called
|
|
* after an insert query is run on a table that has an auto incrementing field. $table and
|
|
* $field are required, but unused here since it's unnecessary for mysql. For compatibility
|
|
* with pgsql, the params must be supplied.
|
|
*/
|
|
|
|
if (!isset($table) || $table == '' || !isset($field) || $field == '')
|
|
return -1;
|
|
|
|
return @mysql_insert_id($this->Link_ID);
|
|
}
|
|
|
|
/* public: table locking */
|
|
function lock($table, $mode='write')
|
|
{
|
|
$this->connect();
|
|
|
|
$query = "lock tables ";
|
|
if (is_array($table))
|
|
{
|
|
while (list($key,$value)=each($table))
|
|
{
|
|
if ($key == "read" && $key!=0)
|
|
{
|
|
$query .= "$value read, ";
|
|
}
|
|
else
|
|
{
|
|
$query .= "$value $mode, ";
|
|
}
|
|
}
|
|
$query = substr($query,0,-2);
|
|
}
|
|
else
|
|
{
|
|
$query .= "$table $mode";
|
|
}
|
|
$res = @mysql_query($query, $this->Link_ID);
|
|
if (!$res)
|
|
{
|
|
$this->halt("lock($table, $mode) failed.");
|
|
return 0;
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
function unlock()
|
|
{
|
|
$this->connect();
|
|
|
|
$res = @mysql_query("unlock tables");
|
|
if (!$res)
|
|
{
|
|
$this->halt("unlock() failed.");
|
|
return 0;
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
|
|
/* public: evaluate the result (size, width) */
|
|
function affected_rows()
|
|
{
|
|
return @mysql_affected_rows($this->Link_ID);
|
|
}
|
|
|
|
function num_rows()
|
|
{
|
|
return @mysql_num_rows($this->Query_ID);
|
|
}
|
|
|
|
function num_fields()
|
|
{
|
|
return @mysql_num_fields($this->Query_ID);
|
|
}
|
|
|
|
/* public: shorthand notation */
|
|
function nf()
|
|
{
|
|
return $this->num_rows();
|
|
}
|
|
|
|
function np()
|
|
{
|
|
print $this->num_rows();
|
|
}
|
|
|
|
function f($Name, $strip_slashes = "")
|
|
{
|
|
if ($strip_slashes || ($this->auto_stripslashes && ! $strip_slashes))
|
|
{
|
|
return stripslashes($this->Record[$Name]);
|
|
}
|
|
else
|
|
{
|
|
return $this->Record[$Name];
|
|
}
|
|
}
|
|
|
|
function p($Name)
|
|
{
|
|
print $this->Record[$Name];
|
|
}
|
|
|
|
/* public: sequence numbers */
|
|
function nextid($seq_name)
|
|
{
|
|
$this->connect();
|
|
|
|
if ($this->lock($this->Seq_Table))
|
|
{
|
|
/* get sequence number (locked) and increment */
|
|
$q = sprintf("select nextid from %s where seq_name = '%s'",
|
|
$this->Seq_Table,
|
|
$seq_name);
|
|
$id = @mysql_query($q, $this->Link_ID);
|
|
$res = @mysql_fetch_array($id);
|
|
|
|
/* No current value, make one */
|
|
if (!is_array($res))
|
|
{
|
|
$currentid = 0;
|
|
$q = sprintf("insert into %s values('%s', %s)",
|
|
$this->Seq_Table,
|
|
$seq_name,
|
|
$currentid);
|
|
$id = @mysql_query($q, $this->Link_ID);
|
|
}
|
|
else
|
|
{
|
|
$currentid = $res["nextid"];
|
|
}
|
|
$nextid = $currentid + 1;
|
|
$q = sprintf("update %s set nextid = '%s' where seq_name = '%s'",
|
|
$this->Seq_Table,
|
|
$nextid,
|
|
$seq_name);
|
|
$id = @mysql_query($q, $this->Link_ID);
|
|
$this->unlock();
|
|
}
|
|
else
|
|
{
|
|
$this->halt("cannot lock ".$this->Seq_Table." - has it been created?");
|
|
return 0;
|
|
}
|
|
return $nextid;
|
|
}
|
|
|
|
/* public: return table metadata */
|
|
function metadata($table='',$full=false)
|
|
{
|
|
$count = 0;
|
|
$id = 0;
|
|
$res = array();
|
|
|
|
/*
|
|
* Due to compatibility problems with Table we changed the behavior
|
|
* of metadata();
|
|
* depending on $full, metadata returns the following values:
|
|
*
|
|
* - full is false (default):
|
|
* $result[]:
|
|
* [0]["table"] table name
|
|
* [0]["name"] field name
|
|
* [0]["type"] field type
|
|
* [0]["len"] field length
|
|
* [0]["flags"] field flags
|
|
*
|
|
* - full is true
|
|
* $result[]:
|
|
* ["num_fields"] number of metadata records
|
|
* [0]["table"] table name
|
|
* [0]["name"] field name
|
|
* [0]["type"] field type
|
|
* [0]["len"] field length
|
|
* [0]["flags"] field flags
|
|
* ["meta"][field name] index of field named "field name"
|
|
* The last one is used, if you have a field name, but no index.
|
|
* Test: if (isset($result['meta']['myfield'])) { ...
|
|
*/
|
|
|
|
/* if no $table specified, assume that we are working with a query */
|
|
/* result */
|
|
if ($table)
|
|
{
|
|
$this->connect();
|
|
$id = @mysql_list_fields($this->Database, $table);
|
|
if (!$id)
|
|
{
|
|
$this->halt("Metadata query failed.");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$id = $this->Query_ID;
|
|
if (!$id)
|
|
{
|
|
$this->halt("No query specified.");
|
|
}
|
|
}
|
|
|
|
$count = @mysql_num_fields($id);
|
|
|
|
/* made this IF due to performance (one if is faster than $count if's) */
|
|
if (!$full)
|
|
{
|
|
for ($i=0; $i<$count; $i++)
|
|
{
|
|
$res[$i]['table'] = @mysql_field_table ($id, $i);
|
|
$res[$i]['name'] = @mysql_field_name ($id, $i);
|
|
$res[$i]['type'] = @mysql_field_type ($id, $i);
|
|
$res[$i]['len'] = @mysql_field_len ($id, $i);
|
|
$res[$i]['flags'] = @mysql_field_flags ($id, $i);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* full */
|
|
$res["num_fields"]= $count;
|
|
|
|
for ($i=0; $i<$count; $i++)
|
|
{
|
|
$res[$i]['table'] = @mysql_field_table ($id, $i);
|
|
$res[$i]['name'] = @mysql_field_name ($id, $i);
|
|
$res[$i]['type'] = @mysql_field_type ($id, $i);
|
|
$res[$i]['len'] = @mysql_field_len ($id, $i);
|
|
$res[$i]['flags'] = @mysql_field_flags ($id, $i);
|
|
$res['meta'][$res[$i]['name']] = $i;
|
|
}
|
|
}
|
|
|
|
/* free the result only if we were called on a table */
|
|
if ($table)
|
|
{
|
|
@mysql_free_result($id);
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
/* private: error handling */
|
|
function halt($msg, $line = '', $file = '')
|
|
{
|
|
global $phpgw;
|
|
$this->unlock(); /* Just in case there is a table currently locked */
|
|
|
|
$this->Error = @mysql_error($this->Link_ID);
|
|
$this->Errno = @mysql_errno($this->Link_ID);
|
|
if ($this->Halt_On_Error == "no")
|
|
{
|
|
return;
|
|
}
|
|
$this->haltmsg($msg);
|
|
|
|
if ($file)
|
|
{
|
|
printf("<br><b>File:</b> %s",$file);
|
|
}
|
|
if ($line)
|
|
{
|
|
printf("<br><b>Line:</b> %s",$line);
|
|
}
|
|
|
|
if ($this->Halt_On_Error != "report")
|
|
{
|
|
echo "<p><b>Session halted.</b>";
|
|
$phpgw->common->phpgw_exit(True);
|
|
}
|
|
}
|
|
|
|
function haltmsg($msg)
|
|
{
|
|
printf("<b>Database error:</b> %s<br>\n", $msg);
|
|
if ($this->Errno != "0" && $this->Error != "()")
|
|
{
|
|
printf("<b>MySQL Error</b>: %s (%s)<br>\n",$this->Errno,$this->Error);
|
|
}
|
|
}
|
|
|
|
function table_names()
|
|
{
|
|
$this->query("SHOW TABLES");
|
|
$i=0;
|
|
while ($info=mysql_fetch_row($this->Query_ID))
|
|
{
|
|
$return[$i]['table_name'] = $info[0];
|
|
$return[$i]['tablespace_name'] = $this->Database;
|
|
$return[$i]['database'] = $this->Database;
|
|
$i++;
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
function create_database($adminname = '', $adminpasswd = '')
|
|
{
|
|
$currentUser = $this->User;
|
|
$currentPassword = $this->Password;
|
|
$currentDatabase = $this->Database;
|
|
|
|
if ($adminname != '')
|
|
{
|
|
$this->User = $adminname;
|
|
$this->Password = $adminpasswd;
|
|
$this->Database = "mysql";
|
|
}
|
|
$this->disconnect();
|
|
$this->query("CREATE DATABASE $currentDatabase");
|
|
$this->query("grant all on $currentDatabase.* to $currentUser@localhost identified by '$currentPassword'");
|
|
$this->disconnect();
|
|
|
|
$this->User = $currentUser;
|
|
$this->Password = $currentPassword;
|
|
$this->Database = $currentDatabase;
|
|
$this->connect();
|
|
/*return $return; */
|
|
}
|
|
}
|
|
?>
|