maintenance/sql.php

   1 <?php
   2 /**
   3  * Send SQL queries from the specified file to the database, performing
   4  * variable replacement along the way.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @ingroup Maintenance
  22  */
  23
  24 require_once( "Maintenance.php" );
  25
  26 class MwSql extends Maintenance {
  27         public function __construct() {
  28                 parent::__construct();
  29                 $this->mDescription = "Send SQL queries to a MediaWiki database";
  30         }
  31
  32         public function execute() {
  33                 if ( $this->hasArg() ) {
  34                         $fileName = $this->getArg();
  35                         $file = fopen( $fileName, 'r' );
  36                         $promptCallback = false;
  37                 } else {
  38                         $file = $this->getStdin();
  39                         $promptObject = new SqlPromptPrinter( "> " );
  40                         $promptCallback = $promptObject->cb();
  41                 }
  42
  43                 if ( !$file )
  44                         $this->error( "Unable to open input file\n", true );
  45
  46                 $dbw = wfGetDB( DB_MASTER );
  47                 $error = $dbw->sourceStream( $file, $promptCallback, array( $this, 'sqlPrintResult' ) );
  48                 if ( $error !== true ) {
  49                         $this->error( $error, true );
  50                 } else {
  51                         exit( 0 );
  52                 }
  53         }
  54
  55         /**
  56          * Print the results, callback for $db->sourceStream()
  57          * @param $res The results object
  58          * @param $db Database object
  59          */
  60         public function sqlPrintResult( $res, $db ) {
  61                 if ( !$res ) {
  62                         // Do nothing
  63                 } elseif ( is_object( $res ) && $res->numRows() ) {
  64                         while ( $row = $res->fetchObject() ) {
  65                                 $this->output( print_r( $row, true ) );
  66                         }
  67                 } else {
  68                         $affected = $db->affectedRows();
  69                         $this->output( "Query OK, $affected row(s) affected\n" );
  70                 }
  71         }
  72 }
  73
  74 class SqlPromptPrinter {
  75         function __construct( $prompt ) {
  76                 $this->prompt = $prompt;
  77         }
  78
  79         function cb() {
  80                 return array( $this, 'printPrompt' );
  81         }
  82
  83         function printPrompt() {
  84                 echo $this->prompt;
  85         }
  86 }
  87
  88 $maintClass = "MwSql";
  89 require_once( DO_MAINTENANCE );