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[phpBT-dev] CVS: phpbt/inc/db mysql.php,NONE,1.1 pgsql.php,NONE,1.1
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From: Benjamin C. <bc...@us...> - 2001-11-30 06:06:20
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Update of /cvsroot/phpbt/phpbt/inc/db
In directory usw-pr-cvs1:/tmp/cvs-serv30006/inc/db
Added Files:
mysql.php pgsql.php
Log Message:
Including phplib files
--- NEW FILE: mysql.php ---
<?php
/*
* Session Management for PHP3
*
* Copyright (c) 1998,1999 NetUSE GmbH
* Boris Erdmann, Kristian Koehntopp
*
* db_sql.inc,v 1.12 2001/10/12 16:19:29 layne_weathers
*
*/
class DB_Sql {
/* public: connection parameters */
var $Host = "";
var $Database = "";
var $User = "";
var $Password = "";
/* public: configuration parameters */
var $Auto_Free = 0; ## Set to 1 to automatically free results
var $Debug = 0; ## Set to 1 for debugging messages
var $Halt_On_Error = "yes"; ## "yes" (halt with message), "no" (ignore errors quietly), "report" (ignore error, but spit a warning)
var $Seq_Table = "db_sequence"; ## Name of the sequence table
var $Seq_ID_Col = "p_nextid"; ## Name of the Sequence ID column in $Seq_Table
var $Seq_Name_Col = "p_seq_name"; ## Name of the Sequence Name column in $Seq_Table
/* public: result array and current row number */
var $Record = array();
var $Row = 0;
/* 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 $Query_ID = 0;
/* public: constructor */
function DB_Sql($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 ) {
$this->Link_ID=mysql_pconnect($Host, $User, $Password);
if (!$this->Link_ID) {
$this->halt("pconnect($Host, $User, \$Password) failed.");
return 0;
}
}
if (!@mysql_select_db($Database,$this->Link_ID)) {
$this->halt("cannot use database ".$Database);
return 0;
}
return $this->Link_ID;
}
/* public: discard the query result */
function free() {
@mysql_free_result($this->Query_ID);
$this->Query_ID = 0;
}
/* public: perform a query */
function query($Query_String) {
/* 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_Sql_Subclass;'
*/
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;
$this->check_error();
if (!$this->Query_ID) {
$this->halt("Invalid SQL: ".$Query_String);
}
# Will return nada if it fails. That's fine.
return $this->Query_ID;
}
/* public: walk result set */
function next_record() {
if (!$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->check_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 ".$this->num_rows()." rows.");
/* half assed attempt to save the day,
* but do not consider this documented or even
* desirable behaviour.
*/
@mysql_data_seek($this->Query_ID, $this->num_rows());
$this->Row = $this->num_rows();
return 0;
}
return 1;
}
/* public: table locking */
function lock($table, $mode = "write") {
$query = "lock tables ";
if (is_array($table)) {
while (list($key,$value) = each($table)) {
if (!is_int($key)) {
// texts key are "read", "read local", "write", "low priority write"
$query .= "$value $key, ";
} else {
$query .= "$value $mode, ";
}
}
$query = substr($query,0,-2);
} else {
$query .= "$table $mode";
}
$res = $this->query($query);
if (!$res) {
$this->halt("lock() failed.");
return 0;
}
return $res;
}
function unlock() {
$res = $this->query("unlock tables");
if (!$res) {
$this->halt("unlock() failed.");
}
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) {
if (isset($this->Record[$Name])) {
return $this->Record[$Name];
}
return "";
}
function p($Name) {
print $this->f($Name);
}
/* public: sequence numbers */
function nextid($seq_name) {
if (!$this->connect()) {
return 0; /* we already complained in connect() about that. */
}
if ($this->lock($this->Seq_Table)) {
/* get sequence number (locked) and increment */
$q = sprintf("select %s from %s where %s = '%s'",
$this->Seq_ID_Col,
$this->Seq_Table,
$this->Seq_Name_Col,
$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 ( %s, %s ) values('%s', %s)",
$this->Seq_Table,
$this->Seq_Name_Col,
$this->Seq_ID_Col,
$seq_name,
$currentid);
$id = @mysql_query($q, $this->Link_ID);
} else {
$currentid = $res[$this->Seq_ID_Col];
}
$nextid = $currentid + 1;
$q = sprintf("update %s set %s = '%s' where %s = '%s'",
$this->Seq_Table,
$this->Seq_ID_Col,
$nextid,
$this->Seq_Name_Col,
$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();
* If $full is set, metadata returns additional information
*
* This information is always returned:
* $result[]:
* [0]["table"] table name
* [0]["name"] field name
* [0]["type"] field type
* [0]["len"] field length
* [0]["flags"] field flags
*
* If $full is set this information is also returned:
* $result[]:
* ["num_fields"] number of metadata records
* [0]["php_type"] the corresponding PHP-type
* [0]["php_subtype"] the subtype of PHP-type
* ["meta"][field name] index of field named "field name"
* This one could be used if you have a field name, but no index.
* Test: if (isset($result['meta']['myfield'])) { ...
* [unique] = field names which have an unique key, separated by space
*/
// if no $table specified, assume that we are working with a query result
if ($table) {
if (!$this->connect()) {
return 0; /* we already complained in connect() about that. */
}
$id = @mysql_list_fields($this->Database, $table);
if (!$id) {
$this->halt("Metadata query failed.");
return false;
}
} else {
$id = $this->Query_ID;
if (!$id) {
$this->halt("No query specified.");
return false;
}
}
$count = @mysql_num_fields($id);
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, $i);
}
if ($full) {
$uniq = array();
$res["num_fields"] = $count;
for ($i=0; $i<$count; $i++) {
$res["meta"][$res[$i]["name"]] = $i;
switch ($res[$i]["type"]) {
case "var string":
case "string" :
case "char" :
$res[$i]["php_type"]="string";
$res[$i]["php_subtype"]="";
break;
case "timestamp" :
case "datetime" :
case "date" :
case "time" :
$res[$i]["php_type"]="string";
$res[$i]["php_subtype"]="date";
break;
case "blob" :
$res[$i]["php_type"]="string";
$res[$i]["php_subtype"]="blob";
break;
case "real" :
$res[$i]["php_type"]="double";
$res[$i]["php_subtype"]="";
break;
case "long" :
default :
$res[$i]["php_type"]="int";
$res[$i]["php_subtype"]="";
break;
}
if ( ereg("(unique_key|primary_key)",$res[$i]["flags"]) ) {
$uniq[]=$res[$i]["name"];
}
}
$res["unique"]=join(" ",$uniq);
}
// free the result only if we were called on a table
if ($table) {
@mysql_free_result($id);
}
return $res;
}
/* public: find available table names */
function table_names() {
if (!$this->connect()) {
return 0; /* we already complained in connect() about that. */
}
$h = @mysql_query("show tables", $this->Link_ID);
$i = 0;
while ($info = @mysql_fetch_row($h)) {
$return[$i]["table_name"] = $info[0];
$return[$i]["tablespace_name"] = $this->Database;
$return[$i]["database"] = $this->Database;
$i++;
}
@mysql_free_result($h);
return $return;
}
/* private: error handling */
function check_error() {
$this->Error = @mysql_error();
$this->Errno = @mysql_errno();
}
function halt($msg) {
$this->Error = @mysql_error($this->Link_ID);
$this->Errno = @mysql_errno($this->Link_ID);
if ($this->Halt_On_Error == "no")
return;
$this->haltmsg($msg);
if ($this->Halt_On_Error != "report")
die("Session halted.");
}
function haltmsg($msg) {
printf("</td></tr></table><b>Database error:</b> %s<br>\n", $msg);
printf("<b>MySQL Error</b>: %s (%s)<br>\n",
$this->Errno,
$this->Error);
}
}
?>
--- NEW FILE: pgsql.php ---
<?php
/*
* Session Management for PHP3
*
* Copyright (c) 1998,1999 NetUSE GmbH
* Boris Erdmann, Kristian Koehntopp
*
* db_sql.inc,v 1.4 2000/07/01 22:08:35 kir
*
*/
class DB_Sql {
var $Host = "";
var $Database = "";
var $User = "";
var $Password = "";
var $Link_ID = 0;
var $Query_ID = 0;
var $Record = array();
var $Row = 0;
var $Seq_Table = "db_sequence";
var $Errno = 0;
var $Error = "";
var $Auto_Free = 0; # Set this to 1 for automatic pg_freeresult on
# last record.
function ifadd($add, $me) {
if("" != $add) return " ".$me.$add;
}
/* public: constructor */
function DB_Sql($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=");
$this->Link_ID=pg_pconnect($cstr);
if (!$this->Link_ID) {
$this->halt("Link-ID == false, pconnect failed");
}
}
}
function query($Query_String) {
/* 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_Sql_Subclass;'
*/
return 0;
$this->connect();
# printf("<br>Debug: query = %s<br>\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);
}
return $this->Query_ID;
}
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 = $pos;
}
function lock($table, $mode = "write") {
if ($mode == "write") {
$result = pg_Exec($this->Link_ID, "lock table $table");
} else {
$result = 1;
}
return $result;
}
function unlock() {
return pg_Exec($this->Link_ID, "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) {
return $this->Record[$Name];
}
function p($Name) {
print $this->Record[$Name];
}
## contributed Saillard Luc <luc...@al...>
function nextid($seq_name) {
$this->connect();
$q_id=@pg_exec($this->Link_ID,"select nextval('$seq_name')");
if (!$q_id) {
if (!@pg_exec($this->Link_ID,"create sequence $seq_name")) {
$this->halt("<BR> nextid() function - unable to create sequence");
return 0;
}
$q_id=@pg_exec($this->Link_ID,"select nextval('$seq_name')");
if (!$q_id) {
$this->halt("<BR>pg_exec() failed:<BR>nextID function");
return 0;
}
}
$r=@pg_fetch_row($q_id, 0);
if ($r==false)
$nextid=0;
else
$nextid=$r[0];
return $nextid;
}
function halt($msg) {
printf("</td></tr></table><b>Database error:</b> %s<br>\n", $msg);
printf("<b>PostgreSQL Error</b>: %s (%s)<br>\n",
$this->Errno,
$this->Error);
die("Session halted.");
}
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;
}
}
?>
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