public $Debug = 0;

public $sqoe = 1; // sqoe= show query on error

public $DBDatabase = "";

public $DBUser = "";

public $DBPassword = "";

public $Persistent = false;

public $Uppercase = false;

public $Record = array();

public $Row;

public $Binds = array();

public $Link_ID = 0;

public $Query_ID = 0;

public $Connected = false;

public $Encoding = "";

public $Error = "";

/* public: constructor */

function DB_Sql($query = "") {

}

function try_connect() {

$this->Query_ID = 0;

$old_error_reporting = error_reporting();

error_reporting($old_error_reporting & ~E_WARNING);

if ($this->Persistent)

$this->Link_ID = @OCIplogon ("$this->DBUser", "$this->DBPassword", "$this->DBDatabase");

else

$this->Link_ID = @OCIlogon ("$this->DBUser", "$this->DBPassword", "$this->DBDatabase");

error_reporting($old_error_reporting);

$this->Connected = $this->Link_ID ? true : false;

if (!$this->Connected) {

$this->Error=OCIError();

$this->Halt($this->Error);

}

return $this->Connected;

}

function connect() {

if (!$this->Connected) {

$this->Query_ID = 0;

if($this->Debug) {

printf("<br>Connecting to $this->DBDatabase...<br>\n");

}

$old_error_reporting = error_reporting();

error_reporting($old_error_reporting & ~E_WARNING);

if ($this->Persistent)

$this->Link_ID=OCIplogon ("$this->DBUser","$this->DBPassword","$this->DBDatabase", $this->Encoding);

else

$this->Link_ID=OCIlogon ("$this->DBUser","$this->DBPassword","$this->DBDatabase", $this->Encoding);

error_reporting($old_error_reporting);

if (!$this->Link_ID) {

$this->Error=OCIError();

$this->Halt($this->Error);

#$this->Halt("Cannot connect to Database: " . $this->Error["message"]. " ". $this->Error);

return 0;

}

if($this->Debug) {

printf("<br>Obtained the Link_ID: $this->Link_ID<br>\n");

}

$this->Connected = true;

}

return $this->Connected;

}

function bind($parameter_name, $parameter_value, $parameter_length = -1, $parameter_type = 0)

{

if($parameter_length == -1 && $parameter_type == 0)

$parameter_length = strlen($parameter_value);

$this->Binds[$parameter_name] = array($parameter_value, $parameter_length, $parameter_type);

}

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();

$this->Query_ID = OCIParse($this->Link_ID, $Query_String);

if(!$this->Query_ID) {

$this->Error=OCIError($this->Query_ID);

$this->Halt($this->Error);

} else {

$old_error_reporting = error_reporting();

error_reporting($old_error_reporting & ~E_WARNING);

if(sizeof($this->Binds) > 0) {

foreach ($this->Binds as $parameter_name => $parameter_values) {

if($parameter_values[2] == OCI_B_CURSOR)

$this->Binds[$parameter_name][0] = OCINewCursor($this->Link_ID);

if($parameter_values[2] == 0)

OCIBindByName ($this->Query_ID, ":" . $parameter_name, $this->Binds[$parameter_name][0], $parameter_values[1]);

else

OCIBindByName ($this->Query_ID, ":" . $parameter_name, $this->Binds[$parameter_name][0], $parameter_values[1], $parameter_values[2]);

}

}

OCIExecute($this->Query_ID);

error_reporting($old_error_reporting);

$this->Error=OCIError($this->Query_ID);

}

$this->Row=0;

if($this->Debug) {

printf("Debug: query = %s<br>\n", $Query_String);

}

if (/*$this->Error["code"] != 1403 && */$this->Error["code"] != 0 && $this->sqoe) {

$this->Halt($this->Error);

}

#echo "<BR><FONT color=red><B>".$this->Error["message"]."<BR>Query :\"$Query_String\"</B></FONT>";

if(sizeof($this->Binds) > 0)

{

$bi = 0;

foreach ($this->Binds as $parameter_name => $parameter_values) {

if($parameter_values[2] == OCI_B_CURSOR) {

OCIExecute($this->Binds[$parameter_name][0]);

$this->Error=OCIError($this->Binds[$parameter_name][0]);

$this->Query_ID = $this->Binds[$parameter_name][0];

}

$this->Record[ $parameter_name ] = $parameter_values[0];

$this->Record[ $bi++ ] = $parameter_values[0];

}

$this->Binds = array();

}

return $this->Query_ID;

}

function next_record() {

if (!$this->Query_ID)

return 0;

if(0 == @OCIFetchInto($this->Query_ID,$result,OCI_ASSOC+OCI_RETURN_NULLS)) {

if ($this->Debug) {

printf("<br>ID: %d,Rows: %d<br>\n",

$this->Link_ID,$this->num_rows());

}

$this->Row +=1;

$errno=OCIError($this->Query_ID);

if(1403 == $errno) { # 1043 means no more records found

$this->Error="";

$this->disconnect();

$stat=0;

} else {

$this->Error=OCIError($this->Query_ID);

if($this->Debug) {

printf("<br>Error: %s",

$this->Error["message"]);

}

$stat=0;

}

} else {

for($ix=1;$ix<=OCINumcols($this->Query_ID);$ix++) {

$col = OCIColumnname($this->Query_ID,$ix);

$colreturn= $col;

$this->Record[ "$colreturn" ] = $result["$col"];

$this->Record[ $ix - 1 ] = $result["$col"];

if($this->Debug) echo"<b>[$col]</b>:".$result["$col"]."<br>\n";

}

$stat=1;

}

return $stat;

}

function seek($pos) {

$i = 0;

while($i < $pos && @OCIFetchInto($this->Query_ID,$result,OCI_ASSOC+OCI_RETURN_NULLS)) {$i++; }

$this->Row += $i;

return true;

}

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 ("NOT NULL", "INDEX")

* [0]["format"] precision and scale of number (eg. "10,2") or empty

* [0]["index"] name of index (if has one)

* [0]["chars"] number of chars (if any char-type)

*

* - 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 ("NOT NULL", "INDEX")

* [0]["format"] precision and scale of number (eg. "10,2") or empty

* [0]["index"] name of index (if has one)

* [0]["chars"] number of chars (if any char-type)

* ["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'])) {} ...

*/

$this->connect();

## This is a RIGHT OUTER JOIN: "(+)", if you want to see, what

## this query results try the following:

## $table = new Table; $db = new my_DB_Sql; # you have to make

## # your own class

## $table->show_results($db->query(see query vvvvvv))

##

$this->query("SELECT T.table_name,T.column_name,T.data_type,".

"T.data_length,T.data_precision,T.data_scale,T.nullable,".

"T.char_col_decl_length,I.index_name".

" FROM ALL_TAB_COLUMNS T,ALL_IND_COLUMNS I".

" WHERE T.column_name=I.column_name (+)".

" AND T.table_name=I.table_name (+)".

" AND T.table_name=UPPER('$table') ORDER BY T.column_id");

$i=0;

while ($this->next_record()) {

$res[$i]["table"] = $this->Record[table_name];

$res[$i]["name"] = strtolower($this->Record[column_name]);

$res[$i]["type"] = $this->Record[data_type];

$res[$i]["len"] = $this->Record[data_length];

if ($this->Record[index_name]) $res[$i]["flags"] = "INDEX ";

$res[$i]["flags"] .= ( $this->Record[nullable] == 'N') ? '' : 'NOT NULL';

$res[$i]["format"]= (int)$this->Record[data_precision].",".

(int)$this->Record[data_scale];

if ("0,0"==$res[$i]["format"]) $res[$i]["format"]='';

$res[$i]["index"] = $this->Record[index_name];

$res[$i]["chars"] = $this->Record[char_col_decl_length];

if ($full) {

$j=$res[$i]["name"];

$res["meta"][$j] = $i;

$res["meta"][strtoupper($j)] = $i;

}

if ($full) $res["meta"][$res[$i]["name"]] = $i;

$i++;

}

if ($full) $res["num_fields"]=$i;

# $this->disconnect();

return $res;

}

function affected_rows() {

return $this->num_rows();

}

function num_rows() {

return OCIrowcount($this->Query_ID);

}

function num_fields() {

return OCINumcols($this->Query_ID);

}

function nf() {

return $this->num_rows();

}

function np() {

print $this->num_rows();

}

function f($Name) {

if($this->Uppercase) $Name = strtoupper($Name);

if (array_key_exists($Name, $this->Record) && is_object($this->Record[$Name]))

{

return $this->Record[$Name]->load();

} else

{

return $this->Record && array_key_exists($Name, $this->Record) ? $this->Record[$Name] : "";

}

}

function p($Name) {

if($this->Uppercase) $Name = strtoupper($Name);

print $this->f($Name);

}

function nextid($seqname)

{

$this->connect();

$Query_ID=@ociparse($this->Link_ID,"SELECT $seqname.NEXTVAL FROM DUAL");

if(!@ociexecute($Query_ID))

{

$this->Error=@OCIError($Query_ID);

if($this->Error["code"]==2289)

{

$Query_ID=ociparse($this->Link_ID,"CREATE SEQUENCE $seqname");

if(!ociexecute($Query_ID))

{

$this->Error=OCIError($Query_ID);

$this->Errors->addError("Database error: " . $this->Error["message"]);

return 0;

} else

{

$Query_ID=ociparse($this->Link_ID,"SELECT $seqname.NEXTVAL FROM DUAL");

ociexecute($Query_ID);

}

}

}

if (ocifetch($Query_ID))

{

$next_id = ociresult($Query_ID,"NEXTVAL");

} else

{

$next_id = 0;

}

ocifreestatement($Query_ID);

return $next_id;

}

function disconnect() {

if($this->Debug) {

printf("Disconnecting...<br>\n");

}

OCILogoff($this->Link_ID);

}

function free_result() {

@ocifreestatement($this->Query_ID);

$this->Query_ID = 0;

}

function close()

{

if ($this->Query_ID) {

$this->free_result();

}

if ($this->Connected && !$this->Persistent) {

OCILogoff($this->Link_ID);

$this->Connected = false;

}

}

function halt($msg) {

$msg["message"] = str_replace(array("\\", '"', "/", "\n" , "\r", "\t", "\b"), array("\\\\", '\"', '\/', '\\n', '', '\t', '\b'), $msg["message"]);

$e = '{"ERROR" : {"CODE":"'.$msg["code"].'", "MESSAGE" : "'.$msg["message"].'", "TYPE":"Oracle"}}';

die($e);

printf("</td></tr></table><b>Database error:</b> %s<br>\n", $msg);

printf("<b>ORACLE Error</b>: %s<br>\n",

$this->Error["message"]);

die("Session halted.");

}

function lock($table, $mode = "write") {

$this->connect();

if ($mode == "write") {

$Parse=OCIParse($this->Link_ID,"lock table $table in row exclusive mode");

OCIExecute($Parse);

} else {

$result = 1;

}

return $result;

}

function unlock() {

return $this->query("commit");

}

function table_names() {

$this->connect();

$this->query("

SELECT table_name,tablespace_name

FROM user_tables");

$i=0;

while ($this->next_record())

{

$info[$i]["table_name"] =$this->Record["table_name"];

$info[$i]["tablespace_name"]=$this->Record["tablespace_name"];

$i++;

}

return $info;

}

function add_specialcharacters($query)

{

return str_replace("'","''",$query);

}

function split_specialcharacters($query)

{

return str_replace("''","'",$query);

}

function esc($value) {

return str_replace("'", "''", $value);

}