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-rw-r--r--src/SemanticScuttle/db/db2.php417
1 files changed, 417 insertions, 0 deletions
diff --git a/src/SemanticScuttle/db/db2.php b/src/SemanticScuttle/db/db2.php
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+++ b/src/SemanticScuttle/db/db2.php
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+<?php
+/**
+*
+* @package dbal_db2
+* @version $Id: db2.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","db2");
+
+/**
+* @package dbal_db2
+* DB2 Database Abstraction Layer
+*/
+class sql_db
+{
+
+ var $db_connect_id;
+ var $query_result;
+ var $query_resultset;
+ var $query_numrows;
+ var $next_id;
+ var $row = array();
+ var $rowset = array();
+ var $row_index;
+ var $num_queries = 0;
+
+ //
+ // Constructor
+ //
+ function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
+ {
+ $this->persistency = $persistency;
+ $this->user = $sqluser;
+ $this->password = $sqlpassword;
+ $this->dbname = $database;
+
+ $this->server = $sqlserver;
+
+ if($this->persistency)
+ {
+ $this->db_connect_id = odbc_pconnect($this->server, "", "");
+ }
+ else
+ {
+ $this->db_connect_id = odbc_connect($this->server, "", "");
+ }
+
+ if($this->db_connect_id)
+ {
+ @odbc_autocommit($this->db_connect_id, off);
+
+ return $this->db_connect_id;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ //
+ // Other base methods
+ //
+ function sql_close()
+ {
+ if($this->db_connect_id)
+ {
+ if($this->query_result)
+ {
+ @odbc_free_result($this->query_result);
+ }
+ $result = @odbc_close($this->db_connect_id);
+ return $result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+
+ //
+ // Query method
+ //
+ function sql_query($query = "", $transaction = FALSE)
+ {
+ //
+ // Remove any pre-existing queries
+ //
+ unset($this->query_result);
+ unset($this->row);
+ if($query != "")
+ {
+ $this->num_queries++;
+
+ if(!eregi("^INSERT ",$query))
+ {
+ 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];
+ }
+
+ $query .= " FETCH FIRST ".($row_offset+$num_rows)." ROWS ONLY OPTIMIZE FOR ".($row_offset+$num_rows)." ROWS";
+
+ $this->query_result = odbc_exec($this->db_connect_id, $query);
+
+ $query_limit_offset = $row_offset;
+ $this->result_numrows[$this->query_result] = $num_rows;
+ }
+ else
+ {
+ $this->query_result = odbc_exec($this->db_connect_id, $query);
+
+ $row_offset = 0;
+ $this->result_numrows[$this->query_result] = 5E6;
+ }
+
+ $result_id = $this->query_result;
+ if($this->query_result && eregi("^SELECT", $query))
+ {
+
+ for($i = 1; $i < odbc_num_fields($result_id)+1; $i++)
+ {
+ $this->result_field_names[$result_id][] = odbc_field_name($result_id, $i);
+ }
+
+ $i = $row_offset + 1;
+ $k = 0;
+ while(odbc_fetch_row($result_id, $i) && $k < $this->result_numrows[$result_id])
+ {
+
+ for($j = 1; $j < count($this->result_field_names[$result_id])+1; $j++)
+ {
+ $this->result_rowset[$result_id][$k][$this->result_field_names[$result_id][$j-1]] = odbc_result($result_id, $j);
+ }
+ $i++;
+ $k++;
+ }
+
+ $this->result_numrows[$result_id] = $k;
+ $this->row_index[$result_id] = 0;
+ }
+ else
+ {
+ $this->result_numrows[$result_id] = @odbc_num_rows($result_id);
+ $this->row_index[$result_id] = 0;
+ }
+ }
+ else
+ {
+ if(eregi("^(INSERT|UPDATE) ", $query))
+ {
+ $query = preg_replace("/\\\'/s", "''", $query);
+ }
+
+ $this->query_result = odbc_exec($this->db_connect_id, $query);
+
+ if($this->query_result)
+ {
+ $sql_id = "VALUES(IDENTITY_VAL_LOCAL())";
+
+ $id_result = odbc_exec($this->db_connect_id, $sql_id);
+ if($id_result)
+ {
+ $row_result = odbc_fetch_row($id_result);
+ if($row_result)
+ {
+ $this->next_id[$this->query_result] = odbc_result($id_result, 1);
+ }
+ }
+ }
+
+ odbc_commit($this->db_connect_id);
+
+ $this->query_limit_offset[$this->query_result] = 0;
+ $this->result_numrows[$this->query_result] = 0;
+ }
+
+ return $this->query_result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ //
+ // Other query methods
+ //
+ function sql_numrows($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ return $this->result_numrows[$query_id];
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_affectedrows($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ return $this->result_numrows[$query_id];
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_numfields($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ $result = count($this->result_field_names[$query_id]);
+ return $result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_fieldname($offset, $query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ $result = $this->result_field_names[$query_id][$offset];
+ return $result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_fieldtype($offset, $query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ $result = @odbc_field_type($query_id, $offset);
+ return $result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_fetchrow($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ if($this->row_index[$query_id] < $this->result_numrows[$query_id])
+ {
+ $result = $this->result_rowset[$query_id][$this->row_index[$query_id]];
+ $this->row_index[$query_id]++;
+ return $result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_fetchrowset($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ $this->row_index[$query_id] = $this->result_numrows[$query_id];
+ return $this->result_rowset[$query_id];
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_fetchfield($field, $row = -1, $query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ if($row < $this->result_numrows[$query_id])
+ {
+ if($row == -1)
+ {
+ $getrow = $this->row_index[$query_id]-1;
+ }
+ else
+ {
+ $getrow = $row;
+ }
+
+ return $this->result_rowset[$query_id][$getrow][$this->result_field_names[$query_id][$field]];
+
+ }
+ else
+ {
+ return false;
+ }
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_rowseek($offset, $query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ $this->row_index[$query_id] = 0;
+ return true;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_nextid($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ return $this->next_id[$query_id];
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_freeresult($query_id = 0)
+ {
+ if(!$query_id)
+ {
+ $query_id = $this->query_result;
+ }
+ if($query_id)
+ {
+ $result = @odbc_free_result($query_id);
+ return $result;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ function sql_error($query_id = 0)
+ {
+// $result['code'] = @odbc_error($this->db_connect_id);
+// $result['message'] = @odbc_errormsg($this->db_connect_id);
+
+ return "";
+ }
+
+} // class sql_db
+
+} // if ... define
+
+?> \ No newline at end of file