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SemanticScuttle/includes/db/oracle.php
mensonge d582054c77 import of scuttle 0.7.2 
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@1 b3834d28-1941-0410-a4f8-b48e95affb8f
2007-12-12 16:29:16 +00:00

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8.6 KiB
PHP
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<?php
/**
*
* @package dbal_oracle
* @version $Id: oracle.php,v 1.2 2005/06/10 08:52:03 devalley Exp $
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
if(!defined("SQL_LAYER"))
{
define("SQL_LAYER","oracle");
/**
* @package dbal_oracle
* Oracle Database Abstraction Layer
*/
class sql_db
{
var $db_connect_id;
var $query_result;
var $in_transaction = 0;
var $row = array();
var $rowset = array();
var $num_queries = 0;
var $last_query_text = "";
//
// Constructor
//
function sql_db($sqlserver, $sqluser, $sqlpassword, $database="", $persistency = true)
{
$this->persistency = $persistency;
$this->user = $sqluser;
$this->password = $sqlpassword;
$this->server = $sqlserver;
$this->dbname = $database;
if($this->persistency)
{
$this->db_connect_id = @OCIPLogon($this->user, $this->password, $this->server);
}
else
{
$this->db_connect_id = @OCINLogon($this->user, $this->password, $this->server);
}
if($this->db_connect_id)
{
return $this->db_connect_id;
}
else
{
return false;
}
}
//
// Other base methods
//
function sql_close()
{
if($this->db_connect_id)
{
// Commit outstanding transactions
if($this->in_transaction)
{
OCICommit($this->db_connect_id);
}
if($this->query_result)
{
@OCIFreeStatement($this->query_result);
}
$result = @OCILogoff($this->db_connect_id);
return $result;
}
else
{
return false;
}
}
//
// Base query method
//
function sql_query($query = "", $transaction = FALSE)
{
// Remove any pre-existing queries
unset($this->query_result);
// Put us in transaction mode because with Oracle as soon as you make a query you're in a transaction
$this->in_transaction = TRUE;
if($query != "")
{
$this->last_query = $query;
$this->num_queries++;
if(eregi("LIMIT", $query))
{
preg_match("/^(.*)LIMIT ([0-9]+)[, ]*([0-9]+)*/s", $query, $limits);
$query = $limits[1];
if($limits[3])
{
$row_offset = $limits[2];
$num_rows = $limits[3];
}
else
{
$row_offset = 0;
$num_rows = $limits[2];
}
}
if(eregi("^(INSERT|UPDATE) ", $query))
{
$query = preg_replace("/\\\'/s", "''", $query);
}
$this->query_result = @OCIParse($this->db_connect_id, $query);
$success = @OCIExecute($this->query_result, OCI_DEFAULT);
}
if($success)
{
if($transaction == END_TRANSACTION)
{
OCICommit($this->db_connect_id);
$this->in_transaction = FALSE;
}
unset($this->row[$this->query_result]);
unset($this->rowset[$this->query_result]);
$this->last_query_text[$this->query_result] = $query;
return $this->query_result;
}
else
{
if($this->in_transaction)
{
OCIRollback($this->db_connect_id);
}
return false;
}
}
//
// Other query methods
//
function sql_numrows($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @OCIFetchStatement($query_id, $this->rowset);
// OCIFetchStatment kills our query result so we have to execute the statment again
// if we ever want to use the query_id again.
@OCIExecute($query_id, OCI_DEFAULT);
return $result;
}
else
{
return false;
}
}
function sql_affectedrows($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @OCIRowCount($query_id);
return $result;
}
else
{
return false;
}
}
function sql_numfields($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @OCINumCols($query_id);
return $result;
}
else
{
return false;
}
}
function sql_fieldname($offset, $query_id = 0)
{
// OCIColumnName uses a 1 based array so we have to up the offset by 1 in here to maintain
// full abstraction compatibitly
$offset += 1;
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = strtolower(@OCIColumnName($query_id, $offset));
return $result;
}
else
{
return false;
}
}
function sql_fieldtype($offset, $query_id = 0)
{
// This situation is the same as fieldname
$offset += 1;
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @OCIColumnType($query_id, $offset);
return $result;
}
else
{
return false;
}
}
function sql_fetchrow($query_id = 0, $debug = FALSE)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result_row = "";
$result = @OCIFetchInto($query_id, $result_row, OCI_ASSOC+OCI_RETURN_NULLS);
if($debug)
{
echo "Query was: ".$this->last_query . "<br>";
echo "Result: $result<br>";
echo "Query ID: $query_id<br>";
echo "<pre>";
var_dump($result_row);
echo "</pre>";
}
if($result_row == "")
{
return false;
}
for($i = 0; $i < count($result_row); $i++)
{
list($key, $val) = each($result_row);
$return_arr[strtolower($key)] = $val;
}
$this->row[$query_id] = $return_arr;
return $this->row[$query_id];
}
else
{
return false;
}
}
// This function probably isn't as efficant is it could be but any other way I do it
// I end up losing 1 row...
function sql_fetchrowset($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$rows = @OCIFetchStatement($query_id, $results);
@OCIExecute($query_id, OCI_DEFAULT);
for($i = 0; $i <= $rows; $i++)
{
@OCIFetchInto($query_id, $tmp_result, OCI_ASSOC+OCI_RETURN_NULLS);
for($j = 0; $j < count($tmp_result); $j++)
{
list($key, $val) = each($tmp_result);
$return_arr[strtolower($key)] = $val;
}
$result[] = $return_arr;
}
return $result;
}
else
{
return false;
}
}
function sql_fetchfield($field, $rownum = -1, $query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
if($rownum > -1)
{
// Reset the internal rownum pointer.
@OCIExecute($query_id, OCI_DEFAULT);
for($i = 0; $i < $rownum; $i++)
{
// Move the interal pointer to the row we want
@OCIFetch($query_id);
}
// Get the field data.
$result = @OCIResult($query_id, strtoupper($field));
}
else
{
// The internal pointer should be where we want it
// so we just grab the field out of the current row.
$result = @OCIResult($query_id, strtoupper($field));
}
return $result;
}
else
{
return false;
}
}
function sql_rowseek($rownum, $query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
@OCIExecute($query_id, OCI_DEFAULT);
for($i = 0; $i < $rownum; $i++)
{
@OCIFetch($query_id);
}
$result = @OCIFetch($query_id);
return $result;
}
else
{
return false;
}
}
function sql_nextid($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id && $this->last_query_text[$query_id] != "")
{
if( eregi("^(INSERT{1}|^INSERT INTO{1})[[:space:]][\"]?([a-zA-Z0-9\_\-]+)[\"]?", $this->last_query_text[$query_id], $tablename))
{
$query = "SELECT ".$tablename[2]."_id_seq.currval FROM DUAL";
$stmt = @OCIParse($this->db_connect_id, $query);
@OCIExecute($stmt,OCI_DEFAULT );
$temp_result = @OCIFetchInto($stmt, $temp_result, OCI_ASSOC+OCI_RETURN_NULLS);
if($temp_result)
{
return $temp_result['CURRVAL'];
}
else
{
return false;
}
}
else
{
return false;
}
}
else
{
return false;
}
}
function sql_nextid($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id && $this->last_query_text[$query_id] != "")
{
if( eregi("^(INSERT{1}|^INSERT INTO{1})[[:space:]][\"]?([a-zA-Z0-9\_\-]+)[\"]?", $this->last_query_text[$query_id], $tablename))
{
$query = "SELECT ".$tablename[2]."_id_seq.CURRVAL FROM DUAL";
$temp_q_id = @OCIParse($this->db_connect_id, $query);
@OCIExecute($temp_q_id, OCI_DEFAULT);
@OCIFetchInto($temp_q_id, $temp_result, OCI_ASSOC+OCI_RETURN_NULLS);
if($temp_result)
{
return $temp_result['CURRVAL'];
}
else
{
return false;
}
}
else
{
return false;
}
}
else
{
return false;
}
}
function sql_freeresult($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
{
$result = @OCIFreeStatement($query_id);
return $result;
}
else
{
return false;
}
}
function sql_error($query_id = 0)
{
if(!$query_id)
{
$query_id = $this->query_result;
}
$result = @OCIError($query_id);
return $result;
}
} // class sql_db
} // if ... define
?>
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