<?php
+/**
+ * Recent changes filtering by category.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
/**
* The "Categoryfinder" class takes a list of articles, creates an internal
* representation of all their parent categories (as well as parents of
*
* Example use :
* <code>
- * # Determines whether the article with the page_id 12345 is in both
- * # "Category 1" and "Category 2" or their subcategories, respectively
+ * # Determines whether the article with the page_id 12345 is in both
+ * # "Category 1" and "Category 2" or their subcategories, respectively
*
- * $cf = new Categoryfinder ;
- * $cf->seed (
- * array ( 12345 ) ,
- * array ( "Category 1","Category 2" ) ,
- * "AND"
- * ) ;
- * $a = $cf->run() ;
- * print implode ( "," , $a ) ;
+ * $cf = new Categoryfinder;
+ * $cf->seed(
+ * array( 12345 ),
+ * array( 'Category 1', 'Category 2' ),
+ * 'AND'
+ * );
+ * $a = $cf->run();
+ * print implode( ',' , $a );
* </code>
*
*/
class Categoryfinder {
-
var $articles = array(); # The original article IDs passed to the seed function
var $deadend = array(); # Array of DBKEY category names for categories that don't have a page
var $parents = array(); # Array of [ID => array()]
var $targets = array(); # Array of DBKEY category names
var $name2id = array();
var $mode; # "AND" or "OR"
+
+ /**
+ * @var DatabaseBase
+ */
var $dbr; # Read-DB slave
/**
* @param $article_ids Array of article IDs
* @param $categories FIXME
* @param $mode String: FIXME, default 'AND'.
+ * @todo FIXME: $categories/$mode
*/
- function seed( $article_ids, $categories, $mode = "AND" ) {
+ function seed( $article_ids, $categories, $mode = 'AND' ) {
$this->articles = $article_ids;
$this->next = $article_ids;
$this->mode = $mode;
$this->targets = array();
foreach ( $categories as $c ) {
$ct = Title::makeTitleSafe( NS_CATEGORY, $c );
- if( $ct ) {
+ if ( $ct ) {
$c = $ct->getDBkey();
$this->targets[$c] = $c;
}
* then checks the articles if they match the conditions
* @return array of page_ids (those given to seed() that match the conditions)
*/
- function run () {
+ function run() {
$this->dbr = wfGetDB( DB_SLAVE );
- while ( count ( $this->next ) > 0 ) {
+ while ( count( $this->next ) > 0 ) {
$this->scan_next_layer();
}
# Now check if this applies to the individual articles
$ret = array();
+
foreach ( $this->articles as $article ) {
$conds = $this->targets;
if ( $this->check( $article, $conds ) ) {
/**
* This functions recurses through the parent representation, trying to match the conditions
- * @param $id The article/category to check
- * @param $conds The array of categories to match
- * @param $path used to check for recursion loops
+ * @param $id int The article/category to check
+ * @param $conds array The array of categories to match
+ * @param $path array used to check for recursion loops
* @return bool Does this match the conditions?
*/
- function check( $id , &$conds, $path = array() ) {
+ function check( $id, &$conds, $path = array() ) {
// Check for loops and stop!
- if( in_array( $id, $path ) )
+ if ( in_array( $id, $path ) ) {
return false;
+ }
+
$path[] = $id;
# Shortcut (runtime paranoia): No contitions=all matched
- if ( count( $conds ) == 0 ) return true;
+ if ( count( $conds ) == 0 ) {
+ return true;
+ }
- if ( !isset( $this->parents[$id] ) ) return false;
+ if ( !isset( $this->parents[$id] ) ) {
+ return false;
+ }
# iterate through the parents
foreach ( $this->parents[$id] as $p ) {
- $pname = $p->cl_to ;
+ $pname = $p->cl_to;
# Is this a condition?
if ( isset( $conds[$pname] ) ) {
# This key is in the category list!
- if ( $this->mode == "OR" ) {
+ if ( $this->mode == 'OR' ) {
# One found, that's enough!
$conds = array();
return true;
} else {
# Assuming "AND" as default
- unset( $conds[$pname] ) ;
+ unset( $conds[$pname] );
if ( count( $conds ) == 0 ) {
# All conditions met, done
return true;
# Not done yet, try sub-parents
if ( !isset( $this->name2id[$pname] ) ) {
# No sub-parent
- continue ;
+ continue;
}
- $done = $this->check( $this->name2id[$pname], $conds,$path );
+ $done = $this->check( $this->name2id[$pname], $conds, $path );
if ( $done || count( $conds ) == 0 ) {
# Subparents have done it!
return true;
* Scans a "parent layer" of the articles/categories in $this->next
*/
function scan_next_layer() {
+ wfProfileIn( __METHOD__ );
+
# Find all parents of the article currently in $this->next
$layer = array();
$res = $this->dbr->select(
- /* FROM */ 'categorylinks',
- /* SELECT */ '*',
- /* WHERE */ array( 'cl_from' => $this->next ),
- __METHOD__ . "-1"
+ /* FROM */ 'categorylinks',
+ /* SELECT */ '*',
+ /* WHERE */ array( 'cl_from' => $this->next ),
+ __METHOD__ . '-1'
);
- while ( $o = $this->dbr->fetchObject( $res ) ) {
- $k = $o->cl_to ;
+ foreach ( $res as $o ) {
+ $k = $o->cl_to;
# Update parent tree
if ( !isset( $this->parents[$o->cl_from] ) ) {
$this->parents[$o->cl_from][$k] = $o;
# Ignore those we already have
- if ( in_array ( $k , $this->deadend ) ) continue;
- if ( isset ( $this->name2id[$k] ) ) continue;
+ if ( in_array( $k, $this->deadend ) ) {
+ continue;
+ }
+
+ if ( isset( $this->name2id[$k] ) ) {
+ continue;
+ }
# Hey, new category!
$layer[$k] = $k;
$this->next = array();
# Find the IDs of all category pages in $layer, if they exist
- if ( count ( $layer ) > 0 ) {
+ if ( count( $layer ) > 0 ) {
$res = $this->dbr->select(
- /* FROM */ 'page',
- /* SELECT */ array( 'page_id', 'page_title' ),
- /* WHERE */ array( 'page_namespace' => NS_CATEGORY , 'page_title' => $layer ),
- __METHOD__ . "-2"
+ /* FROM */ 'page',
+ /* SELECT */ array( 'page_id', 'page_title' ),
+ /* WHERE */ array( 'page_namespace' => NS_CATEGORY , 'page_title' => $layer ),
+ __METHOD__ . '-2'
);
- while ( $o = $this->dbr->fetchObject( $res ) ) {
+ foreach ( $res as $o ) {
$id = $o->page_id;
$name = $o->page_title;
$this->name2id[$name] = $id;
foreach ( $layer as $v ) {
$this->deadend[$v] = $v;
}
- }
-} # END OF CLASS "Categoryfinder"
+ wfProfileOut( __METHOD__ );
+ }
+}
dépôts / lhc / web / wiklou.git / blobdiff