<?php
-
/*
* Created on Oct 19, 2006
*
* API for MediaWiki 1.8+
*
- * Copyright (C) 2006 Yuri Astrakhan <FirstnameLastname@gmail.com>
+ * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
*
* 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
require_once ('ApiQueryBase.php');
}
+/**
+ * A query action to enumerate the recent changes that were done to the wiki.
+ * Various filters are supported.
+ *
+ * @addtogroup API
+ */
class ApiQueryRecentChanges extends ApiQueryBase {
public function __construct($query, $moduleName) {
parent :: __construct($query, $moduleName, 'rc');
}
+ private $fld_comment = false, $fld_user = false, $fld_flags = false,
+ $fld_timestamp = false, $fld_title = false, $fld_ids = false,
+ $fld_sizes = false;
+
+ /**
+ * Generates and outputs the result of this query based upon the provided parameters.
+ */
public function execute() {
- $limit = $prop = $from = $namespace = $show = $dir = $start = $end = null;
+ /* Initialize vars */
+ $limit = $prop = $namespace = $show = $type = $dir = $start = $end = null;
+
+ /* Get the parameters of the request. */
extract($this->extractRequestParams());
+ /* Build our basic query. Namely, something along the lines of:
+ * SELECT * from recentchanges WHERE rc_timestamp > $start
+ * AND rc_timestamp < $end AND rc_namespace = $namespace
+ * AND rc_deleted = '0'
+ */
$this->addTables('recentchanges');
$this->addWhereRange('rc_timestamp', $dir, $start, $end);
$this->addWhereFld('rc_namespace', $namespace);
+ $this->addWhereFld('rc_deleted', 0);
+ if(!is_null($type))
+ $this->addWhereFld('rc_type', $this->parseRCType($type));
if (!is_null($show)) {
$show = array_flip($show);
- if ((isset ($show['minor']) && isset ($show['!minor'])) || (isset ($show['bot']) && isset ($show['!bot'])) || (isset ($show['anon']) && isset ($show['!anon'])))
+
+ /* Check for conflicting parameters. */
+ if ((isset ($show['minor']) && isset ($show['!minor']))
+ || (isset ($show['bot']) && isset ($show['!bot']))
+ || (isset ($show['anon']) && isset ($show['!anon']))) {
+
$this->dieUsage("Incorrect parameter - mutually exclusive values may not be supplied", 'show');
+ }
+ /* Add additional conditions to query depending upon parameters. */
$this->addWhereIf('rc_minor = 0', isset ($show['!minor']));
$this->addWhereIf('rc_minor != 0', isset ($show['minor']));
$this->addWhereIf('rc_bot = 0', isset ($show['!bot']));
$this->addWhereIf('rc_user != 0', isset ($show['!anon']));
}
+ /* Add the fields we're concerned with to out query. */
$this->addFields(array (
'rc_timestamp',
'rc_namespace',
'rc_title',
- 'rc_cur_id',
- 'rc_this_oldid',
- 'rc_last_oldid',
'rc_type',
'rc_moved_to_ns',
'rc_moved_to_title'
));
+ /* Determine what properties we need to display. */
if (!is_null($prop)) {
$prop = array_flip($prop);
- $this->addFieldsIf('rc_comment', isset ($prop['comment']));
- if (isset ($prop['user'])) {
- $this->addFields('rc_user');
- $this->addFields('rc_user_text');
- }
- if (isset ($prop['flags'])) {
- $this->addFields('rc_minor');
- $this->addFields('rc_bot');
- $this->addFields('rc_new');
- }
+
+ /* Set up internal members based upon params. */
+ $this->fld_comment = isset ($prop['comment']);
+ $this->fld_user = isset ($prop['user']);
+ $this->fld_flags = isset ($prop['flags']);
+ $this->fld_timestamp = isset ($prop['timestamp']);
+ $this->fld_title = isset ($prop['title']);
+ $this->fld_ids = isset ($prop['ids']);
+ $this->fld_sizes = isset ($prop['sizes']);
+
+ /* Add fields to our query if they are specified as a needed parameter. */
+ $this->addFieldsIf('rc_id', $this->fld_ids);
+ $this->addFieldsIf('rc_cur_id', $this->fld_ids);
+ $this->addFieldsIf('rc_this_oldid', $this->fld_ids);
+ $this->addFieldsIf('rc_last_oldid', $this->fld_ids);
+ $this->addFieldsIf('rc_comment', $this->fld_comment);
+ $this->addFieldsIf('rc_user', $this->fld_user);
+ $this->addFieldsIf('rc_user_text', $this->fld_user);
+ $this->addFieldsIf('rc_minor', $this->fld_flags);
+ $this->addFieldsIf('rc_bot', $this->fld_flags);
+ $this->addFieldsIf('rc_new', $this->fld_flags);
+ $this->addFieldsIf('rc_old_len', $this->fld_sizes);
+ $this->addFieldsIf('rc_new_len', $this->fld_sizes);
}
+ /* Specify the limit for our query. It's $limit+1 because we (possibly) need to
+ * generate a "continue" parameter, to allow paging. */
$this->addOption('LIMIT', $limit +1);
+
+ /* Specify the index to use in the query as rc_timestamp, instead of rc_revid (default). */
$this->addOption('USE INDEX', 'rc_timestamp');
$data = array ();
$count = 0;
- $db = & $this->getDB();
+
+ /* Perform the actual query. */
+ $db = $this->getDB();
$res = $this->select(__METHOD__);
+
+ /* Iterate through the rows, adding data extracted from them to our query result. */
while ($row = $db->fetchObject($res)) {
if (++ $count > $limit) {
// We've reached the one extra which shows that there are additional pages to be had. Stop here...
- $this->setContinueEnumParameter('start', $row->rc_timestamp);
+ $this->setContinueEnumParameter('start', wfTimestamp(TS_ISO_8601, $row->rc_timestamp));
break;
}
- $vals = $this->addRowInfo('rc', $row);
- if ($vals)
+ /* Extract the data from a single row. */
+ $vals = $this->extractRowInfo($row);
+
+ /* Add that row's data to our final output. */
+ if($vals)
$data[] = $vals;
}
+
$db->freeResult($res);
+ /* Format the result */
$result = $this->getResult();
$result->setIndexedTagName($data, 'rc');
$result->addValue('query', $this->getModuleName(), $data);
}
+ /**
+ * Extracts from a single sql row the data needed to describe one recent change.
+ *
+ * @param $row The row from which to extract the data.
+ * @return An array mapping strings (descriptors) to their respective string values.
+ * @access private
+ */
+ private function extractRowInfo($row) {
+ /* If page was moved somewhere, get the title of the move target. */
+ $movedToTitle = false;
+ if (!empty($row->rc_moved_to_title))
+ $movedToTitle = Title :: makeTitle($row->rc_moved_to_ns, $row->rc_moved_to_title);
+
+ /* Determine the title of the page that has been changed. */
+ $title = Title :: makeTitle($row->rc_namespace, $row->rc_title);
+
+ /* Our output data. */
+ $vals = array ();
+
+ $type = intval ( $row->rc_type );
+
+ /* Determine what kind of change this was. */
+ switch ( $type ) {
+ case RC_EDIT: $vals['type'] = 'edit'; break;
+ case RC_NEW: $vals['type'] = 'new'; break;
+ case RC_MOVE: $vals['type'] = 'move'; break;
+ case RC_LOG: $vals['type'] = 'log'; break;
+ case RC_MOVE_OVER_REDIRECT: $vals['type'] = 'move over redirect'; break;
+ default: $vals['type'] = $type;
+ }
+
+ /* Create a new entry in the result for the title. */
+ if ($this->fld_title) {
+ ApiQueryBase :: addTitleInfo($vals, $title);
+ if ($movedToTitle)
+ ApiQueryBase :: addTitleInfo($vals, $movedToTitle, "new_");
+ }
+
+ /* Add ids, such as rcid, pageid, revid, and oldid to the change's info. */
+ if ($this->fld_ids) {
+ $vals['rcid'] = intval($row->rc_id);
+ $vals['pageid'] = intval($row->rc_cur_id);
+ $vals['revid'] = intval($row->rc_this_oldid);
+ $vals['old_revid'] = intval( $row->rc_last_oldid );
+ }
+
+ /* Add user data and 'anon' flag, if use is anonymous. */
+ if ($this->fld_user) {
+ $vals['user'] = $row->rc_user_text;
+ if(!$row->rc_user)
+ $vals['anon'] = '';
+ }
+
+ /* Add flags, such as new, minor, bot. */
+ if ($this->fld_flags) {
+ if ($row->rc_bot)
+ $vals['bot'] = '';
+ if ($row->rc_new)
+ $vals['new'] = '';
+ if ($row->rc_minor)
+ $vals['minor'] = '';
+ }
+
+ /* Add sizes of each revision. (Only available on 1.10+) */
+ if ($this->fld_sizes) {
+ $vals['oldlen'] = intval($row->rc_old_len);
+ $vals['newlen'] = intval($row->rc_new_len);
+ }
+
+ /* Add the timestamp. */
+ if ($this->fld_timestamp)
+ $vals['timestamp'] = wfTimestamp(TS_ISO_8601, $row->rc_timestamp);
+
+ /* Add edit summary / log summary. */
+ if ($this->fld_comment && !empty ($row->rc_comment)) {
+ $vals['comment'] = $row->rc_comment;
+ }
+
+ return $vals;
+ }
+
+ private function parseRCType($type)
+ {
+ if(is_array($type))
+ {
+ $retval = array();
+ foreach($type as $t)
+ $retval[] = $this->parseRCType($t);
+ return $retval;
+ }
+ switch($type)
+ {
+ case 'edit': return RC_EDIT;
+ case 'new': return RC_NEW;
+ case 'log': return RC_LOG;
+ }
+ }
+
protected function getAllowedParams() {
return array (
'start' => array (
),
'prop' => array (
ApiBase :: PARAM_ISMULTI => true,
+ ApiBase :: PARAM_DFLT => 'title|timestamp|ids',
ApiBase :: PARAM_TYPE => array (
'user',
'comment',
- 'flags'
+ 'flags',
+ 'timestamp',
+ 'title',
+ 'ids',
+ 'sizes'
)
),
'show' => array (
ApiBase :: PARAM_DFLT => 10,
ApiBase :: PARAM_TYPE => 'limit',
ApiBase :: PARAM_MIN => 1,
- ApiBase :: PARAM_MAX1 => ApiBase :: LIMIT_BIG1,
+ ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
+ ),
+ 'type' => array (
+ ApiBase :: PARAM_ISMULTI => true,
+ ApiBase :: PARAM_TYPE => array (
+ 'edit',
+ 'new',
+ 'log'
+ )
)
);
}
'Show only items that meet this criteria.',
'For example, to see only minor edits done by logged-in users, set show=minor|!anon'
),
+ 'type' => 'Which types of changes to show.',
'limit' => 'How many total pages to return.'
);
}
return __CLASS__ . ': $Id$';
}
}
-?>
\ No newline at end of file
+