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=");
$this->Link_ID=pg_pconnect($cstr);
if (!$this->Link_ID) {
$this->halt("Link-ID == false, pconnect failed");
}
}
}
function limit($start)
{
global $phpgw_info;
if ($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 = "", $file = "") {
/* No empty queries, please, since PHP4 chokes on them. */
if ($Query_String == "")
/* 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;'
*/
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, $num_rows, $line = '', $file = '')
{
global $phpgw_info;
if ($this->Debug)
printf("Debug: limit_query = %s
offset=%d, num_rows=%d
\n", $Query_String, $offset, $num_rows);
if (!IsSet($num_rows) || $num_rows < 1)
$num_rows = $phpgw_info['user']['preferences']['common']['maxmatchs'];
$Query_String .= ' LIMIT ' . $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($this->Link_ID,'rollback');
}
function lock($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;
}
$this->unlock(); // Just in case there is a table currently locked
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 faliure
';
echo 'please setup the postreSQL database manually
';
}
$this->User = $currentUser;
$this->Password = $currentPassword;
$this->Database = $currentDatabase;
$this->connect();
//return $return;
}
}