includes/filerepo/ForeignDBRepo.php

   1 <?php
   2
   3 /**
   4  * A foreign repository with an accessible MediaWiki database
   5  * @ingroup FileRepo
   6  */
   7 class ForeignDBRepo extends LocalRepo {
   8         # Settings
   9         var $dbType, $dbServer, $dbUser, $dbPassword, $dbName, $dbFlags,
  10                 $tablePrefix, $hasSharedCache;
  11
  12         # Other stuff
  13         var $dbConn;
  14         var $fileFactory = array( 'ForeignDBFile', 'newFromTitle' );
  15         var $fileFromRowFactory = array( 'ForeignDBFile', 'newFromRow' );
  16
  17         function __construct( $info ) {
  18                 parent::__construct( $info );
  19                 $this->dbType = $info['dbType'];
  20                 $this->dbServer = $info['dbServer'];
  21                 $this->dbUser = $info['dbUser'];
  22                 $this->dbPassword = $info['dbPassword'];
  23                 $this->dbName = $info['dbName'];
  24                 $this->dbFlags = $info['dbFlags'];
  25                 $this->tablePrefix = $info['tablePrefix'];
  26                 $this->hasSharedCache = $info['hasSharedCache'];
  27                 // This must not depend on per-wiki namespace configuration (bug 23120)
  28                 $this->initialCapital = true;
  29         }
  30
  31         function getMasterDB() {
  32                 if ( !isset( $this->dbConn ) ) {
  33                         $class = 'Database' . ucfirst( $this->dbType );
  34                         $this->dbConn = new $class( $this->dbServer, $this->dbUser,
  35                                 $this->dbPassword, $this->dbName, false, $this->dbFlags,
  36                                 $this->tablePrefix );
  37                 }
  38                 return $this->dbConn;
  39         }
  40
  41         function getSlaveDB() {
  42                 return $this->getMasterDB();
  43         }
  44
  45         function hasSharedCache() {
  46                 return $this->hasSharedCache;
  47         }
  48
  49         /**
  50          * Get a key on the primary cache for this repository.
  51          * Returns false if the repository's cache is not accessible at this site.
  52          * The parameters are the parts of the key, as for wfMemcKey().
  53          */
  54         function getSharedCacheKey( /*...*/ ) {
  55                 if ( $this->hasSharedCache() ) {
  56                         $args = func_get_args();
  57                         array_unshift( $args, $this->dbName, $this->tablePrefix );
  58                         return call_user_func_array( 'wfForeignMemcKey', $args );
  59                 } else {
  60                         return false;
  61                 }
  62         }
  63
  64         function store( $srcPath, $dstZone, $dstRel, $flags = 0 ) {
  65                 throw new MWException( get_class($this) . ': write operations are not supported' );
  66         }
  67         function publish( $srcPath, $dstRel, $archiveRel, $flags = 0 ) {
  68                 throw new MWException( get_class($this) . ': write operations are not supported' );
  69         }
  70         function deleteBatch( $sourceDestPairs ) {
  71                 throw new MWException( get_class($this) . ': write operations are not supported' );
  72         }
  73 }