*/
var $mId, # Page ID of the article linked from
$mTitle, # Title object of the article linked from
- $mParserOutput, # Parser output containing the links to be inserted into the database
$mLinks, # Map of title strings to IDs for the links in the document
$mImages, # DB keys of the images used, in the array key only
$mTemplates, # Map of title strings to IDs for the template references, including broken ones
+ $mExternals, # URLs of external links, array key only
$mCategories, # Map of category names to sort keys
$mDb, # Database connection reference
- $mOptions; # SELECT options to be used (array)
+ $mOptions, # SELECT options to be used (array)
+ $mRecursive; # Whether to queue jobs for recursive updates
/**#@-*/
/**
* @param integer $id
* @param string $title
*/
- function LinksUpdate( $title, $parserOutput ) {
+ function LinksUpdate( $title, $parserOutput, $recursive = true ) {
global $wgAntiLockFlags;
if ( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) {
}
$this->mTitle = $title;
$this->mId = $title->getArticleID();
- $this->mParserOutput = $parserOutput;
- // Shortcut aliases
- $this->mLinks =& $this->mParserOutput->getLinks();
- $this->mImages =& $this->mParserOutput->getImages();
- $this->mTemplates =& $this->mParserOutput->getTemplates();
- $this->mCategories =& $this->mParserOutput->getCategories();
+ $this->mLinks = $parserOutput->getLinks();
+ $this->mImages = $parserOutput->getImages();
+ $this->mTemplates = $parserOutput->getTemplates();
+ $this->mExternals = $parserOutput->getExternalLinks();
+ $this->mCategories = $parserOutput->getCategories();
+ $this->mRecursive = $recursive;
}
$this->incrTableUpdate( 'pagelinks', 'pl', $this->getLinkDeletions( $existing ),
$this->getLinkInsertions( $existing ) );
+ # Image links
+ $existing = $this->getExistingImages();
+ $this->incrTableUpdate( 'imagelinks', 'il', $this->getImageDeletions( $existing ),
+ $this->getImageInsertions( $existing ) );
+
+ # Invalidate all image description pages which had links added or removed
+ $imageUpdates = array_diff_key( $existing, $this->mImages ) + array_diff_key( $this->mImages, $existing );
+ $this->invalidateImageDescriptions( $imageUpdates );
+
+ # External links
+ $existing = $this->getExistingExternals();
+ $this->incrTableUpdate( 'externallinks', 'el', $this->getExternalDeletions( $existing ),
+ $this->getExternalInsertions( $existing ) );
+
# Template links
$existing = $this->getExistingTemplates();
$this->incrTableUpdate( 'templatelinks', 'tl', $this->getTemplateDeletions( $existing ),
$this->getTemplateInsertions( $existing ) );
- # Image links
- $existing = $this->getExistingImages();
- $this->incrTableUpdate( 'imagelinks', 'il', $this->getImageDeletions( $existing ),
- $this->getImageInsertions( $existing ) );
+ # Refresh links of all pages including this page
+ if ( $this->mRecursive ) {
+ $tlto = $this->mTitle->getTemplateLinksTo();
+ if ( count( $tlto ) ) {
+ require_once( 'JobQueue.php' );
+ Job::queueLinksJobs( $tlto );
+ }
+ }
# Category links
$existing = $this->getExistingCategories();
$this->incrTableUpdate( 'categorylinks', 'cl', $this->getCategoryDeletions( $existing ),
$this->getCategoryInsertions( $existing ) );
- # I think this works out to a set XOR operation, the idea is to invalidate all
- # categories which were added, deleted or changed
- # FIXME: surely there's a more appropriate place to put this update?
+ # Invalidate all categories which were added, deleted or changed (set symmetric difference)
$categoryUpdates = array_diff_assoc( $existing, $this->mCategories ) + array_diff_assoc( $this->mCategories, $existing );
$this->invalidateCategories( $categoryUpdates );
$fname = 'LinksUpdate::doDumbUpdate';
wfProfileIn( $fname );
+ # Refresh category pages and image description pages
$existing = $this->getExistingCategories();
$categoryUpdates = array_diff_assoc( $existing, $this->mCategories ) + array_diff_assoc( $this->mCategories, $existing );
+ $existing = $this->getExistingImages();
+ $imageUpdates = array_diff_key( $existing, $this->mImages ) + array_diff_key( $this->mImages, $existing );
+
+ # Refresh links of all pages including this page
+ if ( $this->mRecursive ) {
+ $tlto = $this->mTitle->getTemplateLinksTo();
+ if ( count( $tlto ) ) {
+ require_once( 'JobQueue.php' );
+ Job::queueLinksJobs( $tlto );
+ }
+ }
$this->dumbTableUpdate( 'pagelinks', $this->getLinkInsertions(), 'pl_from' );
$this->dumbTableUpdate( 'imagelinks', $this->getImageInsertions(), 'il_from' );
$this->dumbTableUpdate( 'categorylinks', $this->getCategoryInsertions(), 'cl_from' );
$this->dumbTableUpdate( 'templatelinks', $this->getTemplateInsertions(), 'tl_from' );
+ $this->dumbTableUpdate( 'externallinks', $this->getExternalInsertions(), 'el_from' );
- # Update the cache of all the category pages
+ # Update the cache of all the category pages and image description pages which were changed
$this->invalidateCategories( $categoryUpdates );
+ $this->invalidateImageDescriptions( $imageUpdates );
wfProfileOut( $fname );
}
}
}
+ function invalidateImageDescriptions( $images ) {
+ $fname = 'LinksUpdate::invalidateImageDescriptions';
+ if ( count( $images ) ) {
+ $this->mDb->update( 'page', array( 'page_touched' => $this->mDb->timestamp() ),
+ array(
+ 'page_namespace' => NS_IMAGE,
+ 'page_title IN (' . $this->mDb->makeList( array_keys( $images ) ) . ')'
+ ), $fname
+ );
+ }
+ }
+
function dumbTableUpdate( $table, $insertions, $fromField ) {
$fname = 'LinksUpdate::dumbTableUpdate';
$this->mDb->delete( $table, array( $fromField => $this->mId ), $fname );
if ( count( $insertions ) ) {
# The link array was constructed without FOR UPDATE, so there may be collisions
- # Ignoring for now, I'm not sure if that causes problems or not, but I'm fairly
- # sure it's better than without IGNORE
+ # This may cause minor link table inconsistencies, which is better than
+ # crippling the site with lock contention.
$this->mDb->insert( $table, $insertions, $fname, array( 'IGNORE' ) );
}
}
function getImageInsertions( $existing = array() ) {
$arr = array();
$diffs = array_diff_key( $this->mImages, $existing );
- foreach( $diffs as $iname => $val ) {
+ foreach( $diffs as $iname => $dummy ) {
$arr[] = array(
'il_from' => $this->mId,
'il_to' => $iname
return $arr;
}
+ /**
+ * Get an array of externallinks insertions. Skips the names specified in $existing
+ * @access private
+ */
+ function getExternalInsertions( $existing = array() ) {
+ $arr = array();
+ $diffs = array_diff_key( $this->mExternals, $existing );
+ foreach( $diffs as $url => $dummy ) {
+ $arr[] = array(
+ 'el_from' => $this->mId,
+ 'el_to' => $url,
+ 'el_index' => wfMakeUrlIndex( $url ),
+ );
+ }
+ return $arr;
+ }
+
/**
* Get an array of category insertions
* @param array $existing Array mapping existing category names to sort keys. If both
$arr[] = array(
'cl_from' => $this->mId,
'cl_to' => $name,
- 'cl_sortkey' => $sortkey
+ 'cl_sortkey' => $sortkey,
+ 'cl_timestamp' => $this->mDb->timestamp()
);
}
return $arr;
return array_diff_key( $existing, $this->mImages );
}
+ /**
+ * Given an array of existing external links, returns those links which are not
+ * in $this and thus should be deleted.
+ * @access private
+ */
+ function getExternalDeletions( $existing ) {
+ return array_diff_key( $existing, $this->mExternals );
+ }
+
/**
* Given an array of existing categories, returns those categories which are not in $this
* and thus should be deleted.
}
$arr[$row->pl_namespace][$row->pl_title] = 1;
}
+ $this->mDb->freeResult( $res );
return $arr;
}
}
$arr[$row->tl_namespace][$row->tl_title] = 1;
}
+ $this->mDb->freeResult( $res );
return $arr;
}
while ( $row = $this->mDb->fetchObject( $res ) ) {
$arr[$row->il_to] = 1;
}
+ $this->mDb->freeResult( $res );
+ return $arr;
+ }
+
+ /**
+ * Get an array of existing external links, URLs in the keys
+ * @access private
+ */
+ function getExistingExternals() {
+ $fname = 'LinksUpdate::getExistingExternals';
+ $res = $this->mDb->select( 'externallinks', array( 'el_to' ),
+ array( 'el_from' => $this->mId ), $fname, $this->mOptions );
+ $arr = array();
+ while ( $row = $this->mDb->fetchObject( $res ) ) {
+ $arr[$row->el_to] = 1;
+ }
+ $this->mDb->freeResult( $res );
return $arr;
}
while ( $row = $this->mDb->fetchObject( $res ) ) {
$arr[$row->cl_to] = $row->cl_sortkey;
}
+ $this->mDb->freeResult( $res );
return $arr;
}
}
dépôts / lhc / web / wiklou.git / blobdiff