<?php
/**
- * @package MediaWiki
* @todo document
*/
-/** */
-require_once( 'Database.php' );
-require_once( 'Article.php' );
-
/**
- * @package MediaWiki
* @todo document
*/
class Revision {
- const MW_REV_DELETED_TEXT = 1;
- const MW_REV_DELETED_COMMENT = 2;
- const MW_REV_DELETED_USER = 4;
- const MW_REV_DELETED_RESTRICTED = 8;
-
+ const DELETED_TEXT = 1;
+ const DELETED_COMMENT = 2;
+ const DELETED_USER = 4;
+ const DELETED_RESTRICTED = 8;
+
/**
* Load a page revision from a given revision ID number.
* Returns null if no such revision can be found.
*
* @param int $id
- * @static
* @access public
+ * @static
*/
- function newFromId( $id ) {
+ public static function newFromId( $id ) {
return Revision::newFromConds(
array( 'page_id=rev_page',
'rev_id' => intval( $id ) ) );
* @access public
* @static
*/
- function newFromTitle( &$title, $id = 0 ) {
+ public static function newFromTitle( &$title, $id = 0 ) {
if( $id ) {
$matchId = intval( $id );
} else {
array( "rev_id=$matchId",
'page_id=rev_page',
'page_namespace' => $title->getNamespace(),
- 'page_title' => $title->getDbkey() ) );
+ 'page_title' => $title->getDBkey() ) );
+ }
+
+ /**
+ * Load a page revision from a given revision ID number.
+ * Returns null if no such revision can be found.
+ *
+ * @param Database $db
+ * @param int $id
+ * @access public
+ * @static
+ */
+ public static function loadFromId( &$db, $id ) {
+ return Revision::loadFromConds( $db,
+ array( 'page_id=rev_page',
+ 'rev_id' => intval( $id ) ) );
}
/**
* @param int $id
* @return Revision
* @access public
+ * @static
*/
- function loadFromPageId( &$db, $pageid, $id = 0 ) {
+ public static function loadFromPageId( $db, $pageid, $id = 0 ) {
$conds=array('page_id=rev_page','rev_page'=>intval( $pageid ), 'page_id'=>intval( $pageid ));
if( $id ) {
$conds['rev_id']=intval($id);
* @param int $id
* @return Revision
* @access public
+ * @static
*/
- function loadFromTitle( &$db, $title, $id = 0 ) {
+ public static function loadFromTitle( &$db, $title, $id = 0 ) {
if( $id ) {
$matchId = intval( $id );
} else {
array( "rev_id=$matchId",
'page_id=rev_page',
'page_namespace' => $title->getNamespace(),
- 'page_title' => $title->getDbkey() ) );
+ 'page_title' => $title->getDBkey() ) );
}
/**
* @access public
* @static
*/
- function loadFromTimestamp( &$db, &$title, $timestamp ) {
+ public static function loadFromTimestamp( &$db, &$title, $timestamp ) {
return Revision::loadFromConds(
$db,
array( 'rev_timestamp' => $db->timestamp( $timestamp ),
'page_id=rev_page',
'page_namespace' => $title->getNamespace(),
- 'page_title' => $title->getDbkey() ) );
+ 'page_title' => $title->getDBkey() ) );
}
/**
*
* @param array $conditions
* @return Revision
- * @static
* @access private
+ * @static
*/
- function newFromConds( $conditions ) {
- $db =& wfGetDB( DB_SLAVE );
+ private static function newFromConds( $conditions ) {
+ $db = wfGetDB( DB_SLAVE );
$row = Revision::loadFromConds( $db, $conditions );
if( is_null( $row ) ) {
- $dbw =& wfGetDB( DB_MASTER );
+ $dbw = wfGetDB( DB_MASTER );
$row = Revision::loadFromConds( $dbw, $conditions );
}
return $row;
* @param Database $db
* @param array $conditions
* @return Revision
- * @static
* @access private
+ * @static
*/
- function loadFromConds( &$db, $conditions ) {
+ private static function loadFromConds( $db, $conditions ) {
$res = Revision::fetchFromConds( $db, $conditions );
if( $res ) {
$row = $res->fetchObject();
*
* @param Title $title
* @return ResultWrapper
- * @static
* @access public
+ * @static
*/
- function fetchAllRevisions( &$title ) {
+ public static function fetchAllRevisions( &$title ) {
return Revision::fetchFromConds(
wfGetDB( DB_SLAVE ),
array( 'page_namespace' => $title->getNamespace(),
- 'page_title' => $title->getDbkey(),
+ 'page_title' => $title->getDBkey(),
'page_id=rev_page' ) );
}
*
* @param Title $title
* @return ResultWrapper
- * @static
* @access public
+ * @static
*/
- function fetchRevision( &$title ) {
+ public static function fetchRevision( &$title ) {
return Revision::fetchFromConds(
wfGetDB( DB_SLAVE ),
array( 'rev_id=page_latest',
'page_namespace' => $title->getNamespace(),
- 'page_title' => $title->getDbkey(),
+ 'page_title' => $title->getDBkey(),
'page_id=rev_page' ) );
}
* @param Database $db
* @param array $conditions
* @return ResultWrapper
- * @static
* @access private
+ * @static
*/
- function fetchFromConds( &$db, $conditions ) {
+ private static function fetchFromConds( $db, $conditions ) {
+ $fields = self::selectFields();
+ $fields[] = 'page_namespace';
+ $fields[] = 'page_title';
+ $fields[] = 'page_latest';
$res = $db->select(
array( 'page', 'revision' ),
- array( 'page_namespace',
- 'page_title',
- 'page_latest',
- 'rev_id',
- 'rev_page',
- 'rev_text_id',
- 'rev_comment',
- 'rev_user_text',
- 'rev_user',
- 'rev_minor_edit',
- 'rev_timestamp',
- 'rev_deleted' ),
+ $fields,
$conditions,
'Revision::fetchRow',
array( 'LIMIT' => 1 ) );
return $ret;
}
+ /**
+ * Return the list of revision fields that should be selected to create
+ * a new revision.
+ */
+ static function selectFields() {
+ return array(
+ 'rev_id',
+ 'rev_page',
+ 'rev_text_id',
+ 'rev_timestamp',
+ 'rev_comment',
+ 'rev_user_text,'.
+ 'rev_user',
+ 'rev_minor_edit',
+ 'rev_deleted',
+ 'rev_len',
+ 'rev_parent_id'
+ );
+ }
+
/**
* @param object $row
* @access private
$this->mMinorEdit = intval( $row->rev_minor_edit );
$this->mTimestamp = $row->rev_timestamp;
$this->mDeleted = intval( $row->rev_deleted );
+
+ if( !isset( $row->rev_parent_id ) )
+ $this->mParentId = is_null($row->rev_parent_id) ? null : 0;
+ else
+ $this->mParentId = intval( $row->rev_parent_id );
+
+ if( !isset( $row->rev_len ) || is_null( $row->rev_len ) )
+ $this->mSize = null;
+ else
+ $this->mSize = intval( $row->rev_len );
if( isset( $row->page_latest ) ) {
$this->mCurrent = ( $row->rev_id == $row->page_latest );
$this->mTitle = null;
}
+ // Lazy extraction...
+ $this->mText = null;
if( isset( $row->old_text ) ) {
- $this->mText = $this->getRevisionText( $row );
+ $this->mTextRow = $row;
} else {
- $this->mText = null;
+ // 'text' table row entry will be lazy-loaded
+ $this->mTextRow = null;
}
} elseif( is_array( $row ) ) {
// Build a new revision to be saved...
$this->mMinorEdit = isset( $row['minor_edit'] ) ? intval( $row['minor_edit'] ) : 0;
$this->mTimestamp = isset( $row['timestamp'] ) ? strval( $row['timestamp'] ) : wfTimestamp( TS_MW );
$this->mDeleted = isset( $row['deleted'] ) ? intval( $row['deleted'] ) : 0;
-
+ $this->mSize = isset( $row['len'] ) ? intval( $row['len'] ) : null;
+ $this->mParentId = isset( $row['parent_id'] ) ? intval( $row['parent_id'] ) : null;
+
// Enforce spacing trimming on supplied text
$this->mComment = isset( $row['comment'] ) ? trim( strval( $row['comment'] ) ) : null;
$this->mText = isset( $row['text'] ) ? rtrim( strval( $row['text'] ) ) : null;
+ $this->mTextRow = null;
$this->mTitle = null; # Load on demand if needed
$this->mCurrent = false;
+ # If we still have no len_size, see it we have the text to figure it out
+ if ( !$this->mSize )
+ $this->mSize = is_null($this->mText) ? null : strlen($this->mText);
} else {
- wfDebugDieBacktrace( 'Revision constructor passed invalid row format.' );
+ throw new MWException( 'Revision constructor passed invalid row format.' );
}
}
*/
/**
+ * Get revision ID
* @return int
*/
- function getId() {
+ public function getId() {
return $this->mId;
}
/**
+ * Get text row ID
* @return int
*/
- function getTextId() {
+ public function getTextId() {
return $this->mTextId;
}
+
+ /**
+ * Get parent revision ID (the original previous page revision)
+ * @return int
+ */
+ public function getParentId() {
+ return $this->mParentId;
+ }
+
+ /**
+ * Returns the length of the text in this revision, or null if unknown.
+ * @return int
+ */
+ public function getSize() {
+ return $this->mSize;
+ }
/**
* Returns the title of the page associated with this entry.
* @return Title
*/
- function getTitle() {
+ public function getTitle() {
if( isset( $this->mTitle ) ) {
return $this->mTitle;
}
- $dbr =& wfGetDB( DB_SLAVE );
+ $dbr = wfGetDB( DB_SLAVE );
$row = $dbr->selectRow(
array( 'page', 'revision' ),
array( 'page_namespace', 'page_title' ),
array( 'page_id=rev_page',
'rev_id' => $this->mId ),
- 'Revision::getTItle' );
+ 'Revision::getTitle' );
if( $row ) {
$this->mTitle = Title::makeTitle( $row->page_namespace,
$row->page_title );
}
/**
+ * Set the title of the revision
+ * @param Title $title
+ */
+ public function setTitle( $title ) {
+ $this->mTitle = $title;
+ }
+
+ /**
+ * Get the page ID
* @return int
*/
- function getPage() {
+ public function getPage() {
return $this->mPage;
}
* Fetch revision's user id if it's available to all users
* @return int
*/
- function getUser() {
- if( $this->isDeleted( self::MW_REV_DELETED_USER ) ) {
+ public function getUser() {
+ if( $this->isDeleted( self::DELETED_USER ) ) {
return 0;
} else {
return $this->mUser;
* Fetch revision's user id without regard for the current user's permissions
* @return string
*/
- function getRawUser() {
+ public function getRawUser() {
return $this->mUser;
}
* Fetch revision's username if it's available to all users
* @return string
*/
- function getUserText() {
- if( $this->isDeleted( self::MW_REV_DELETED_USER ) ) {
+ public function getUserText() {
+ if( $this->isDeleted( self::DELETED_USER ) ) {
return "";
} else {
return $this->mUserText;
* Fetch revision's username without regard for view restrictions
* @return string
*/
- function getRawUserText() {
+ public function getRawUserText() {
return $this->mUserText;
}
* @return string
*/
function getComment() {
- if( $this->isDeleted( self::MW_REV_DELETED_COMMENT ) ) {
+ if( $this->isDeleted( self::DELETED_COMMENT ) ) {
return "";
} else {
return $this->mComment;
* Fetch revision comment without regard for the current user's permissions
* @return string
*/
- function getRawComment() {
+ public function getRawComment() {
return $this->mComment;
}
/**
* @return bool
*/
- function isMinor() {
+ public function isMinor() {
return (bool)$this->mMinorEdit;
}
/**
- * int $field one of MW_REV_DELETED_* bitfield constants
+ * int $field one of DELETED_* bitfield constants
* @return bool
*/
- function isDeleted( $field ) {
+ public function isDeleted( $field ) {
return ($this->mDeleted & $field) == $field;
}
* Fetch revision text if it's available to all users
* @return string
*/
- function getText() {
- if( $this->isDeleted( self::MW_REV_DELETED_TEXT ) ) {
+ public function getText() {
+ if( $this->isDeleted( self::DELETED_TEXT ) ) {
return "";
} else {
return $this->getRawText();
* Fetch revision text without regard for view restrictions
* @return string
*/
- function getRawText() {
+ public function getRawText() {
if( is_null( $this->mText ) ) {
// Revision text is immutable. Load on demand:
$this->mText = $this->loadText();
}
return $this->mText;
}
+
+ /**
+ * Fetch revision text if it's available to THIS user
+ * @return string
+ */
+ public function revText() {
+ if( !$this->userCan( self::DELETED_TEXT ) ) {
+ return "";
+ } else {
+ return $this->getRawText();
+ }
+ }
/**
* @return string
*/
- function getTimestamp() {
+ public function getTimestamp() {
return wfTimestamp(TS_MW, $this->mTimestamp);
}
/**
* @return bool
*/
- function isCurrent() {
+ public function isCurrent() {
return $this->mCurrent;
}
/**
+ * Get previous revision for this title
* @return Revision
*/
- function getPrevious() {
+ public function getPrevious() {
$prev = $this->mTitle->getPreviousRevisionID( $this->mId );
- if ( $prev ) {
+ if( $prev ) {
return Revision::newFromTitle( $this->mTitle, $prev );
} else {
return null;
/**
* @return Revision
*/
- function getNext() {
+ public function getNext() {
$next = $this->mTitle->getNextRevisionID( $this->mId );
if ( $next ) {
return Revision::newFromTitle( $this->mTitle, $next );
return null;
}
}
- /**#@-*/
+
+ /**
+ * Get previous revision Id for this page_id
+ * This is used to populate rev_parent_id on save
+ * @param Database $db
+ * @return int
+ */
+ private function getPreviousRevisionId( $db ) {
+ if( is_null($this->mPage) ) {
+ return 0;
+ }
+ # Use page_latest if ID is not given
+ if( !$this->mId ) {
+ $prevId = $db->selectField( 'page', 'page_latest',
+ array( 'page_id' => $this->mPage ),
+ __METHOD__ );
+ } else {
+ $prevId = $db->selectField( 'revision', 'rev_id',
+ array( 'rev_page' => $this->mPage, 'rev_id < ' . $this->mId ),
+ __METHOD__,
+ array( 'ORDER BY' => 'rev_id DESC' ) );
+ }
+ return intval($prevId);
+ }
/**
* Get revision text associated with an old or archive row
* $row is usually an object from wfFetchRow(), both the flags and the text
* field must be included
- * @static
+ *
* @param integer $row Id of a row
* @param string $prefix table prefix (default 'old_')
* @return string $text|false the text requested
*/
- function getRevisionText( $row, $prefix = 'old_' ) {
- $fname = 'Revision::getRevisionText';
- wfProfileIn( $fname );
+ public static function getRevisionText( $row, $prefix = 'old_' ) {
+ wfProfileIn( __METHOD__ );
# Get data
$textField = $prefix . 'text';
if( isset( $row->$textField ) ) {
$text = $row->$textField;
} else {
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return false;
}
# Use external methods for external objects, text in table is URL-only then
if ( in_array( 'external', $flags ) ) {
$url=$text;
- @list($proto,$path)=explode('://',$url,2);
+ @list(/* $proto */,$path)=explode('://',$url,2);
if ($path=="") {
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return false;
}
- require_once('ExternalStore.php');
$text=ExternalStore::fetchFromURL($url);
}
$obj = unserialize( $text );
if ( !is_object( $obj ) ) {
// Invalid object
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return false;
}
$text = $obj->getText();
# Old revisions kept around in a legacy encoding?
# Upconvert on demand.
global $wgInputEncoding, $wgContLang;
- $text = $wgContLang->iconv( $wgLegacyEncoding, $wgInputEncoding . '//IGNORE', $text );
+ $text = $wgContLang->iconv( $wgLegacyEncoding, $wgInputEncoding, $text );
}
}
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return $text;
}
* data is compressed, and 'utf-8' if we're saving in UTF-8
* mode.
*
- * @static
* @param mixed $text reference to a text
* @return string
*/
- function compressRevisionText( &$text ) {
+ public static function compressRevisionText( &$text ) {
global $wgCompressRevisions;
$flags = array();
* @param Database $dbw
* @return int
*/
- function insertOn( &$dbw ) {
+ public function insertOn( &$dbw ) {
global $wgDefaultExternalStore;
-
- $fname = 'Revision::insertOn';
- wfProfileIn( $fname );
+
+ wfProfileIn( __METHOD__ );
$data = $this->mText;
$flags = Revision::compressRevisionText( $data );
} else {
$store = $wgDefaultExternalStore;
}
- require_once('ExternalStore.php');
// Store and get the URL
$data = ExternalStore::insert( $store, $data );
if ( !$data ) {
# This should only happen in the case of a configuration error, where the external store is not valid
- wfDebugDieBacktrace( "Unable to store text to external storage $store" );
+ throw new MWException( "Unable to store text to external storage $store" );
}
if ( $flags ) {
$flags .= ',';
'old_id' => $old_id,
'old_text' => $data,
'old_flags' => $flags,
- ), $fname
+ ), __METHOD__
);
$this->mTextId = $dbw->insertId();
}
'rev_user_text' => $this->mUserText,
'rev_timestamp' => $dbw->timestamp( $this->mTimestamp ),
'rev_deleted' => $this->mDeleted,
- ), $fname
+ 'rev_len' => $this->mSize,
+ 'rev_parent_id' => $this->mParentId ? $this->mParentId : $this->getPreviousRevisionId( $dbw )
+ ), __METHOD__
);
$this->mId = !is_null($rev_id) ? $rev_id : $dbw->insertId();
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return $this->mId;
}
* Currently hardcoded to the 'text' table storage engine.
*
* @return string
- * @access private
*/
- function loadText() {
- $fname = 'Revision::loadText';
- wfProfileIn( $fname );
-
- $dbr =& wfGetDB( DB_SLAVE );
- $row = $dbr->selectRow( 'text',
- array( 'old_text', 'old_flags' ),
- array( 'old_id' => $this->getTextId() ),
- $fname);
+ private function loadText() {
+ wfProfileIn( __METHOD__ );
+
+ // Caching may be beneficial for massive use of external storage
+ global $wgRevisionCacheExpiry, $wgMemc;
+ $key = wfMemcKey( 'revisiontext', 'textid', $this->getTextId() );
+ if( $wgRevisionCacheExpiry ) {
+ $text = $wgMemc->get( $key );
+ if( is_string( $text ) ) {
+ wfProfileOut( __METHOD__ );
+ return $text;
+ }
+ }
+
+ // If we kept data for lazy extraction, use it now...
+ if ( isset( $this->mTextRow ) ) {
+ $row = $this->mTextRow;
+ $this->mTextRow = null;
+ } else {
+ $row = null;
+ }
+
+ if( !$row ) {
+ // Text data is immutable; check slaves first.
+ $dbr = wfGetDB( DB_SLAVE );
+ $row = $dbr->selectRow( 'text',
+ array( 'old_text', 'old_flags' ),
+ array( 'old_id' => $this->getTextId() ),
+ __METHOD__ );
+ }
if( !$row ) {
- $dbw =& wfGetDB( DB_MASTER );
+ // Possible slave lag!
+ $dbw = wfGetDB( DB_MASTER );
$row = $dbw->selectRow( 'text',
array( 'old_text', 'old_flags' ),
array( 'old_id' => $this->getTextId() ),
- $fname);
+ __METHOD__ );
}
- $text = Revision::getRevisionText( $row );
- wfProfileOut( $fname );
+ $text = self::getRevisionText( $row );
+
+ if( $wgRevisionCacheExpiry ) {
+ $wgMemc->set( $key, $text, $wgRevisionCacheExpiry );
+ }
+
+ wfProfileOut( __METHOD__ );
return $text;
}
* @param bool $minor
* @return Revision
*/
- function newNullRevision( &$dbw, $pageId, $summary, $minor ) {
- $fname = 'Revision::newNullRevision';
- wfProfileIn( $fname );
+ public static function newNullRevision( &$dbw, $pageId, $summary, $minor ) {
+ wfProfileIn( __METHOD__ );
$current = $dbw->selectRow(
array( 'page', 'revision' ),
'page_id' => $pageId,
'page_latest=rev_id',
),
- $fname );
+ __METHOD__ );
if( $current ) {
$revision = new Revision( array(
'comment' => $summary,
'minor_edit' => $minor,
'text_id' => $current->rev_text_id,
+ 'parent_id' => $current->page_latest
) );
} else {
$revision = null;
}
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return $revision;
}
/**
* Determine if the current user is allowed to view a particular
* field of this revision, if it's marked as deleted.
- * @param int $field one of self::MW_REV_DELETED_TEXT,
- * self::MW_REV_DELETED_COMMENT,
- * self::MW_REV_DELETED_USER
+ * @param int $field one of self::DELETED_TEXT,
+ * self::DELETED_COMMENT,
+ * self::DELETED_USER
* @return bool
*/
- function userCan( $field ) {
+ public function userCan( $field ) {
if( ( $this->mDeleted & $field ) == $field ) {
global $wgUser;
- $permission = ( $this->mDeleted & self::MW_REV_DELETED_RESTRICTED ) == self::MW_REV_DELETED_RESTRICTED
+ $permission = ( $this->mDeleted & self::DELETED_RESTRICTED ) == self::DELETED_RESTRICTED
? 'hiderevision'
: 'deleterevision';
wfDebug( "Checking for $permission due to $field match on $this->mDeleted\n" );
}
}
+
+ /**
+ * Get rev_timestamp from rev_id, without loading the rest of the row
+ * @param integer $id
+ */
+ static function getTimestampFromID( $id ) {
+ $dbr = wfGetDB( DB_SLAVE );
+ $timestamp = $dbr->selectField( 'revision', 'rev_timestamp',
+ array( 'rev_id' => $id ), __METHOD__ );
+ if ( $timestamp === false ) {
+ # Not in slave, try master
+ $dbw = wfGetDB( DB_MASTER );
+ $timestamp = $dbw->selectField( 'revision', 'rev_timestamp',
+ array( 'rev_id' => $id ), __METHOD__ );
+ }
+ return $timestamp;
+ }
+
+ /**
+ * Get count of revisions per page...not very efficient
+ * @param Database $db
+ * @param int $id, page id
+ */
+ static function countByPageId( $db, $id ) {
+ $row = $db->selectRow( 'revision', 'COUNT(*) AS revCount',
+ array( 'rev_page' => $id ), __METHOD__ );
+ if( $row ) {
+ return $row->revCount;
+ }
+ return 0;
+ }
+
+ /**
+ * Get count of revisions per page...not very efficient
+ * @param Database $db
+ * @param Title $title
+ */
+ static function countByTitle( $db, $title ) {
+ $id = $title->getArticleId();
+ if( $id ) {
+ return Revision::countByPageId( $db, $id );
+ }
+ return 0;
+ }
}
-?>
+/**
+ * Aliases for backwards compatibility with 1.6
+ */
+define( 'MW_REV_DELETED_TEXT', Revision::DELETED_TEXT );
+define( 'MW_REV_DELETED_COMMENT', Revision::DELETED_COMMENT );
+define( 'MW_REV_DELETED_USER', Revision::DELETED_USER );
+define( 'MW_REV_DELETED_RESTRICTED', Revision::DELETED_RESTRICTED );
+
+
+
dépôts / lhc / web / wiklou.git / blobdiff