langlinks table

[lhc/web/wiklou.git] / includes / LinksUpdate.php

diff --git a/includes/LinksUpdate.php b/includes/LinksUpdate.php
index 46dc1ca..bea37c1 100644 (file)
--- a/includes/LinksUpdate.php
+++ b/includes/LinksUpdate.php
@@ -19,7 +19,8 @@ class LinksUpdate {
                $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
+           $mCategories,    # Map of category names to sort keys
+           $mInterlangs,    # Map of language codes to titles
                $mDb,            # Database connection reference
                $mOptions,       # SELECT options to be used (array)
                $mRecursive;     # Whether to queue jobs for recursive updates
@@ -53,8 +54,19 @@ class LinksUpdate {
                $this->mTemplates = $parserOutput->getTemplates();
                $this->mExternals = $parserOutput->getExternalLinks();
                $this->mCategories = $parserOutput->getCategories();
-               $this->mRecursive = $recursive;
 
+               # Convert the format of the interlanguage links
+               # I didn't want to change it in the ParserOutput, because that array is passed all 
+               # the way back to the skin, so either a skin API break would be required, or an 
+               # inefficient back-conversion.
+               $ill = $parserOutput->getLanguageLinks();
+               $this->mInterlangs = array();
+               foreach ( $ill as $link ) {
+                       list( $key, $title ) = explode( ':', $link, 2 );
+                       $this->mInterlangs[$key] = $title;
+               }
+
+               $this->mRecursive = $recursive;
        }
 
        /**
@@ -90,7 +102,12 @@ class LinksUpdate {
                # External links
                $existing = $this->getExistingExternals();
                $this->incrTableUpdate( 'externallinks', 'el', $this->getExternalDeletions( $existing ),
-                       $this->getExternalInsertions( $existing ) );
+               $this->getExternalInsertions( $existing ) );
+
+           # Language links
+           $existing = $this->getExistingInterlangs();
+           $this->incrTableUpdate( 'langlinks', 'll', $this->getInterlangDeletions( $existing ),
+               $this->getInterlangInsertions( $existing ) );
 
                # Template links
                $existing = $this->getExistingTemplates();
@@ -104,7 +121,7 @@ class LinksUpdate {
                                require_once( 'JobQueue.php' );
                                Job::queueLinksJobs( $tlto );
                        }
-               }
+           }
 
                # Category links
                $existing = $this->getExistingCategories();
@@ -146,7 +163,8 @@ class LinksUpdate {
                $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' );
+           $this->dumbTableUpdate( 'externallinks', $this->getExternalInsertions(), 'el_from' );
+           $this->dumbTableUpdate( 'langlinks',     $this->getInterlangInsertions(), 'll_from' );
 
                # Update the cache of all the category pages and image description pages which were changed
                $this->invalidateCategories( $categoryUpdates );
@@ -217,8 +235,13 @@ class LinksUpdate {
                                $where = false;
                        }
                } else {
+                       if ( $table == 'langlinks' ) {
+                               $toField = 'll_lang';
+                       } else {
+                               $toField = $prefix . '_to';
+                       }
                        if ( count( $deletions ) ) {
-                               $where[] = "{$prefix}_to IN (" . $this->mDb->makeList( array_keys( $deletions ) ) . ')';
+                               $where[] = "$toField IN (" . $this->mDb->makeList( array_keys( $deletions ) ) . ')';
                        } else {
                                $where = false;
                        }
@@ -327,6 +350,24 @@ class LinksUpdate {
                return $arr;
        }
 
+       /**
+        * Get an array of interlanguage link insertions
+        * @param array $existing Array mapping existing language codes to titles        
+        * @access private
+        */
+       function getInterlangInsertions( $existing = array() ) {
+           $diffs = array_diff_assoc( $this->mInterlangs, $existing );
+           $arr = array();
+           foreach( $diffs as $lang => $title ) {
+               $arr[] = array(
+                   'll_from'  => $this->mId,
+                   'll_lang'  => $lang,
+                   'll_title' => $title
+               );
+           }
+           return $arr;
+       }
+
        /**
         * Given an array of existing links, returns those links which are not in $this
         * and thus should be deleted.
@@ -388,6 +429,15 @@ class LinksUpdate {
                return array_diff_assoc( $existing, $this->mCategories );
        }
 
+       /** 
+        * Given an array of existing interlanguage links, returns those links which are not
+        * in $this and thus should be deleted.
+        * @access private
+        */
+       function getInterlangDeletions( $existing ) {
+           return array_diff_assoc( $existing, $this->mInterlangs );
+       }
+
        /**
         * Get an array of existing links, as a 2-D array
         * @access private
@@ -473,5 +523,21 @@ class LinksUpdate {
                $this->mDb->freeResult( $res );
                return $arr;
        }
+
+       /**
+        * Get an array of existing interlanguage links, with the language code in the key and the 
+        * title in the value.
+        * @access private
+        */
+       function getExistingInterlangs() {
+               $fname = 'LinksUpdate::getExistingInterlangs';
+               $res = $this->mDb->select( 'langlinks', array( 'll_lang', 'll_title' ), 
+                       array( 'll_from' => $this->mId ), $fname, $this->mOptions );
+               $arr = array();
+               while ( $row = $this->mDb->fetchObject( $res ) ) {
+                       $arr[$row->ll_lang] = $row->ll_title;
+               }
+               return $arr;
+       }
 }
 ?>