7.x
var $db_version;
function ifadd($add, $me)
{
if('' != $add) return ' ' . $me . $add;
}
/* public: constructor */
function db($query = '')
{
$this->query($query);
}
function connect()
{
if (0 == $this->Link_ID)
{
$cstr = 'dbname=' . $this->Database
. $this->ifadd($this->Host, 'host=')
. $this->ifadd($this->Port, 'port=')
. $this->ifadd($this->User, 'user=')
. $this->ifadd("'".$this->Password."'", 'password=');
if ($this->use_pconnect)
{
$this->Link_ID=pg_pconnect($cstr);
}
else
{
$this->Link_ID=pg_connect($cstr);
}
if (! $this->Link_ID)
{
$this->halt('Link-ID == false, pconnect failed');
}
else
{
$this->query("select version()",__LINE__,__FILE__);
$this->next_record();
$version = $this->f('version');
$parts = explode(' ',$version);
$this->db_version = $parts[1];
}
}
}
function to_timestamp($epoch)
{
$db_version = $this->db_version;
if (floor($db_version) == 6)
{
return $this->to_timestamp_6($epoch);
}
else
{
return $this->to_timestamp_7($epoch);
}
}
function from_timestamp($timestamp)
{
if (floor($this->db_version) == 6)
{
return $this->from_timestamp_6($timestamp);
}
else
{
return $this->from_timestamp_7($timestamp);
}
}
// For PostgreSQL 6.x
function to_timestamp_6($epoch)
{
}
// For PostgreSQL 6.x
function from_timestamp_6($timestamp)
{
}
// For PostgreSQL 7.x
function to_timestamp_7($epoch)
{
// This needs the GMT offset!
return date('Y-m-d H:i:s-00',$epoch);
}
// For PostgreSQL 7.x
function from_timestamp_7($timestamp)
{
ereg('([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})',$timestamp,$parts);
return mktime($parts[4],$parts[5],$parts[6],$parts[2],$parts[3],$parts[1]);
}
function limit($start)
{
global $phpgw_info;
echo 'Warning: limit() is no longer used, use limit_query()';
if ($start == 0)
{
$s = 'limit ' . $phpgw_info['user']['preferences']['common']['maxmatchs'];
}
else
{
$s = 'limit ' . $phpgw_info['user']['preferences']['common']['maxmatchs'] . ',' . $start;
}
return $s;
}
/* This only affects systems not using persistant connections */
function disconnect()
{
return @pg_close($this->Link_ID);
}
/* 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;
}
$this->connect();
/* printf("
Debug: query = %s
\n", $Query_String); */
$this->Query_ID = pg_Exec($this->Link_ID, $Query_String);
$this->Row = 0;
$this->Error = pg_ErrorMessage($this->Link_ID);
$this->Errno = ($this->Error == '') ? 0 : 1;
if (! $this->Query_ID)
{
$this->halt('Invalid SQL: ' . $Query_String, $line, $file);
}
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 ' . $num_rows . ',' . $offset;
}
if ($this->Debug)
{
printf("Debug: limit_query = %s
offset=%d, num_rows=%d
\n", $Query_String, $offset, $num_rows);
}
return $this->query($Query_String, $line, $file);
}
// public: discard the query result
function free()
{
@pg_freeresult($this->Query_ID);
$this->Query_ID = 0;
}
function next_record()
{
$this->Record = @pg_fetch_array($this->Query_ID, $this->Row++);
$this->Error = pg_ErrorMessage($this->Link_ID);
$this->Errno = ($this->Error == '') ? 0 : 1;
$stat = is_array($this->Record);
if (!$stat && $this->Auto_Free)
{
pg_freeresult($this->Query_ID);
$this->Query_ID = 0;
}
return $stat;
}
function seek($pos)
{
$this->Row = $pos;
}
function transaction_begin()
{
return $this->query('begin');
}
function transaction_commit()
{
if (! $this->Errno)
{
return pg_Exec($this->Link_ID,'commit');
}
else
{
return False;
}
}
function transaction_abort()
{
return pg_Exec($this->Link_ID,'rollback');
}
function get_last_insert_id($table, $field)
{
/* This will get the last insert ID created on the current connection. Should only be called
* after an insert query is run on a table that has an auto incrementing field. Of note, table
* and field are required because pgsql returns the last inserted OID, which is unique across
* an entire installation. These params allow us to retrieve the sequenced field without adding
* conditional code to the apps.
*/
if (!isset($table) || $table == '' || !isset($field) || $field == '')
return -1;
$oid = pg_getlastoid($this->Query_ID);
if ($oid == -1)
return -1;
$result = @pg_Exec($this->Link_ID, "select $field from $table where oid=$oid");
if (!$result)
return -1;
$Record = @pg_fetch_array($result, 0);
@pg_freeresult($result);
if (!is_array($Record)) /* OID not found? */
return -1;
return $Record[0];
}
function lock($table, $mode = 'write')
{
$result = $this->transaction_begin();
if ($mode == 'write')
{
if (is_array($table))
{
while ($t = each($table))
{
$result = pg_Exec($this->Link_ID,'lock table ' . $t[1] . ' in share mode');
}
}
else
{
$result = pg_Exec($this->Link_ID, 'lock table ' . $table . ' in share mode');
}
}
else
{
$result = 1;
}
return $result;
}
function unlock()
{
return $this->transaction_commit();
}
/* public: sequence numbers */
function nextid($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);
$id = @pg_Exec($this->Link_ID, $q);
$res = @pg_Fetch_Array($id, 0);
/* 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);
$id = @pg_Exec($this->Link_ID, $q);
}
else
{
$currentid = $res['nextid'];
}
$nextid = $currentid + 1;
$q = sprintf("update %s set nextid = '%s' where seq_name = '%s'",
$this->Seq_Table,
$nextid,
$seq_name);
$id = @pg_Exec($this->Link_ID, $q);
$this->unlock();
}
else
{
$this->halt('cannot lock ' . $this->Seq_Table . ' - has it been created?');
return 0;
}
return $nextid;
}
function metadata($table)
{
$count = 0;
$id = 0;
$res = array();
$this->connect();
$id = pg_exec($this->Link_ID, "select * from $table");
if ($id < 0)
{
$this->Error = pg_ErrorMessage($id);
$this->Errno = 1;
$this->halt('Metadata query failed.');
}
$count = pg_NumFields($id);
for ($i=0; $i<$count; $i++)
{
$res[$i]['table'] = $table;
$res[$i]['name'] = pg_FieldName ($id, $i);
$res[$i]['type'] = pg_FieldType ($id, $i);
$res[$i]['len'] = pg_FieldSize ($id, $i);
$res[$i]['flags'] = '';
}
pg_FreeResult($id);
return $res;
}
function affected_rows()
{
return pg_cmdtuples($this->Query_ID);
}
function num_rows()
{
return pg_numrows($this->Query_ID);
}
function num_fields()
{
return pg_numfields($this->Query_ID);
}
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];
}
function halt($msg, $line = "", $file = "")
{
global $phpgw;
if($this->Halt_On_Error == "no")
{
return;
}
/* Just in case there is a table currently locked */
$this->unlock();
printf("Database error: %s
\n", $msg);
printf("PostgreSQL Error: %s (%s)
\n",
$this->Errno,
$this->Error);
if ($file)
{
printf("
File: %s",$file);
}
if ($line)
{
printf("
Line: %s",$line);
}
if ($this->Halt_On_Error == 'yes')
{
echo 'Session halted.';
$phpgw->common->phpgw_exit(True);
}
}
function table_names()
{
$this->query("select relname from pg_class where relkind = 'r' and not relname like 'pg_%'");
$i=0;
while ($this->next_record())
{
$return[$i]['table_name']= $this->f(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;
}
if (! $this->Host)
{
system('createdb ' . $currentDatabase, $outval);
}
else
{
system('createdb -h ' . $this->Host . ' ' . $currentDatabase, $outval);
}
if($outval != 0)
{
/* either the rights r not available or the postmaster is not running .... */
echo 'database creation failure
';
echo 'please setup the postreSQL database manually
';
}
$this->User = $currentUser;
$this->Password = $currentPassword;
$this->Database = $currentDatabase;
$this->connect();
//return $return;
}
}