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-rw-r--r--src/SemanticScuttle/db/oracle.php468
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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
+
+?> \ No newline at end of file
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