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Moved to includes ... since they are included too .. trying to "clean up" structure a little
git-svn-id: file:///svn/phpbb/trunk@3656 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen
421
phpBB/includes/db/mssql.php
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421
phpBB/includes/db/mssql.php
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@@ -0,0 +1,421 @@
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<?php
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/***************************************************************************
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* mssql.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : supportphpbb.com
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*
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* $Id$
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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if(!defined("SQL_LAYER"))
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{
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define("SQL_LAYER","mssql");
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class sql_db
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{
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var $db_connect_id;
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var $result;
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var $next_id;
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var $in_transaction = 0;
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var $row = array();
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var $rowset = array();
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var $limit_offset;
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var $query_limit_success;
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var $num_queries = 0;
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//
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// Constructor
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//
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function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
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{
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$this->persistency = $persistency;
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$this->user = $sqluser;
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$this->password = $sqlpassword;
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$this->server = $sqlserver;
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$this->dbname = $database;
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$this->db_connect_id = ( $this->persistency ) ? mssql_pconnect($this->server, $this->user, $this->password) : mssql_connect($this->server, $this->user, $this->password);
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if( $this->db_connect_id && $this->dbname != "" )
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{
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if( !mssql_select_db($this->dbname, $this->db_connect_id) )
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{
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mssql_close($this->db_connect_id);
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return false;
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}
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}
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return $this->db_connect_id;
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}
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//
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// Other base methods
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//
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function sql_close()
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{
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if($this->db_connect_id)
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{
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//
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// Commit any remaining transactions
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//
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if( $this->in_transaction )
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{
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@mssql_query("COMMIT", $this->db_connect_id);
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}
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return @mssql_close($this->db_connect_id);
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}
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else
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{
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return false;
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}
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}
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//
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// Query method
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//
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function sql_query($query = "", $transaction = FALSE)
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{
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//
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// Remove any pre-existing queries
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//
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unset($this->result);
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unset($this->row);
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if ( $query != "" )
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{
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$this->num_queries++;
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if ( $transaction == BEGIN_TRANSACTION && !$this->in_transaction )
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{
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if ( !mssql_query("BEGIN TRANSACTION", $this->db_connect_id) )
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{
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return false;
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}
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$this->in_transaction = TRUE;
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}
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//
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// Does query contain any LIMIT code? If so pull out relevant start and num_results
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// This isn't terribly easy with MSSQL, whatever you do will potentially impact
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// performance compared to an 'in-built' limit
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//
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// Another issue is the 'lack' of a returned true value when a query is valid but has
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// no result set (as with all the other DB interfaces). It seems though that it's
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// 'fair' to say that if a query returns a false result (ie. no resource id) then the
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// SQL was valid but had no result set. If the query returns nothing but the rowcount
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// returns something then there's a problem. This may well be a false assumption though
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// ... needs checking under Windows itself.
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//
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if( preg_match("/^SELECT(.*?)(LIMIT ([0-9]+)[, ]*([0-9]+)*)?$/s", $query, $limits) )
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{
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$query = $limits[1];
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if( !empty($limits[2]) )
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{
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$row_offset = ( $limits[4] ) ? $limits[3] : "";
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$num_rows = ( $limits[4] ) ? $limits[4] : $limits[3];
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$query = "TOP " . ( $row_offset + $num_rows ) . $query;
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}
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$this->result = mssql_query("SELECT $query", $this->db_connect_id);
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if( $this->result )
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{
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$this->limit_offset[$this->result] = ( !empty($row_offset) ) ? $row_offset : 0;
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if( $row_offset > 0 )
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{
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mssql_data_seek($this->result, $row_offset);
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}
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}
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}
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else if( eregi("^INSERT ", $query) )
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{
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if( mssql_query($query, $this->db_connect_id) )
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{
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$this->result = time() + microtime();
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$result_id = mssql_query("SELECT @@IDENTITY AS id, @@ROWCOUNT as affected", $this->db_connect_id);
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if( $result_id )
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{
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if( $row = mssql_fetch_array($result_id) )
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{
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$this->next_id[$this->db_connect_id] = $row['id'];
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$this->affected_rows[$this->db_connect_id] = $row['affected'];
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}
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}
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}
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}
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else
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{
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if( mssql_query($query, $this->db_connect_id) )
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{
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$this->result = time() + microtime();
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$result_id = mssql_query("SELECT @@ROWCOUNT as affected", $this->db_connect_id);
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if( $result_id )
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{
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if( $row = mssql_fetch_array($result_id) )
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{
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$this->affected_rows[$this->db_connect_id] = $row['affected'];
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}
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}
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}
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}
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if( !$this->result )
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{
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if( $this->in_transaction )
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{
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mssql_query("ROLLBACK", $this->db_connect_id);
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$this->in_transaction = FALSE;
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}
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return false;
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}
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if( $transaction == END_TRANSACTION && $this->in_transaction )
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{
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$this->in_transaction = FALSE;
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if( !@mssql_query("COMMIT", $this->db_connect_id) )
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{
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@mssql_query("ROLLBACK", $this->db_connect_id);
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return false;
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}
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}
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return $this->result;
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}
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else
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{
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if( $transaction == END_TRANSACTION && $this->in_transaction )
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{
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$this->in_transaction = FALSE;
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if( !@mssql_query("COMMIT", $this->db_connect_id) )
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{
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@mssql_query("ROLLBACK", $this->db_connect_id);
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return false;
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}
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}
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return true;
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}
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}
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//
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// Other query methods
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//
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function sql_numrows($query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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if( $query_id )
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{
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return ( !empty($this->limit_offset[$query_id]) ) ? mssql_num_rows($query_id) - $this->limit_offset[$query_id] : @mssql_num_rows($query_id);
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}
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else
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{
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return false;
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}
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}
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function sql_numfields($query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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return ( $query_id ) ? mssql_num_fields($query_id) : false;
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}
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function sql_fieldname($offset, $query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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return ( $query_id ) ? mssql_field_name($query_id, $offset) : false;
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}
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function sql_fieldtype($offset, $query_id = 0)
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{
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if(!$query_id)
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{
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$query_id = $this->result;
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}
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return ( $query_id ) ? mssql_field_type($query_id, $offset) : false;
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}
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function sql_fetchrow($query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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if( $query_id )
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{
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empty($row);
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$row = mssql_fetch_array($query_id);
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while( list($key, $value) = @each($row) )
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{
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$row[$key] = stripslashes($value);
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}
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return $row;
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}
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else
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{
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return false;
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}
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}
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function sql_fetchrowset($query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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if( $query_id )
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{
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$i = 0;
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empty($rowset);
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while( $row = mssql_fetch_array($query_id))
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{
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while( list($key, $value) = @each($row) )
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{
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$rowset[$i][$key] = stripslashes($value);
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}
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$i++;
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}
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return $rowset;
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}
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else
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{
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return false;
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}
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}
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function sql_fetchfield($field, $row = -1, $query_id)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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if( $query_id )
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{
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if( $row != -1 )
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{
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if( $this->limit_offset[$query_id] > 0 )
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{
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$result = ( !empty($this->limit_offset[$query_id]) ) ? mssql_result($this->result, ($this->limit_offset[$query_id] + $row), $field) : false;
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}
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else
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{
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$result = mssql_result($this->result, $row, $field);
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}
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}
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else
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{
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if( empty($this->row[$query_id]) )
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{
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$this->row[$query_id] = mssql_fetch_array($query_id);
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$result = stripslashes($this->row[$query_id][$field]);
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}
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}
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return $result;
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}
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else
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{
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return false;
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}
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}
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function sql_rowseek($rownum, $query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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if( $query_id )
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{
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return ( !empty($this->limit_offset[$query_id]) ) ? mssql_data_seek($query_id, ($this->limit_offset[$query_id] + $rownum)) : mssql_data_seek($query_id, $rownum);
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}
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else
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{
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return false;
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}
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}
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function sql_nextid()
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{
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return ( $this->next_id[$this->db_connect_id] ) ? $this->next_id[$this->db_connect_id] : false;
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}
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function sql_affectedrows()
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{
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return ( $this->affected_rows[$this->db_connect_id] ) ? $this->affected_rows[$this->db_connect_id] : false;
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}
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function sql_freeresult($query_id = 0)
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{
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if( !$query_id )
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{
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$query_id = $this->result;
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}
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return ( $query_id ) ? mssql_free_result($query_id) : false;
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}
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function sql_escape($msg)
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{
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return str_replace("'", "''", str_replace('\\', '\\\\', $msg));
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}
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function sql_error($query_id = 0)
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{
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$result['message'] = @mssql_get_last_message();
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return $result;
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}
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} // class sql_db
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} // if ... define
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?>
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Reference in New Issue
Block a user