Gecko [ paroquia-rio-de-mouro.pt ]

Name	Size	Permission	Date
actions	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
api	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
auth	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
cache	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
changes	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
changetags	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
clientpool	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
collation	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
compat	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
composer	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
config	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
content	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
context	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
dao	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
db	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
debug	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
deferred	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
diff	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
exception	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
export	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
extauth	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
externalstore	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
filebackend	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
filerepo	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
gallery	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
htmlform	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
http	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
import	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
installer	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
interwiki	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
job	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
jobqueue	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
json	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
libs	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
linker	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
logging	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
mail	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
media	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
normal	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
objectcache	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
page	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
pager	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
parser	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
password	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
poolcounter	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
profiler	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
rcfeed	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
registration	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
resourceloader	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
revisiondelete	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
search	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
services	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
session	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
site	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
skins	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
specialpage	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
specials	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
templates	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
tidy	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
title	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
upload	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
user	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
utils	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
widget	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
zhtable	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
.htaccess	197 B	-r--r--r--	2026-08-22 08:29
Action.php	12.43 KB	-rw-r--r--	2011-09-16 17:01
AjaxDispatcher.php	4.03 KB	-rw-r--r--	2016-11-28 20:20
AjaxResponse.php	8.15 KB	-rw-r--r--	2016-11-28 20:20
Article.php	58.64 KB	-rw-r--r--	2011-11-15 20:46
AuthPlugin.php	9.2 KB	-rw-r--r--	2016-11-28 20:20
AutoLoader.php	3 KB	-rw-r--r--	2016-11-28 20:20
Autopromote.php	6.77 KB	-rw-r--r--	2016-11-28 20:20
BacklinkCache.php	9.03 KB	-rw-r--r--	2011-06-30 01:09
Block.php	41.97 KB	-rw-r--r--	2016-11-28 20:20
Category.php	10.34 KB	-rw-r--r--	2016-11-28 20:20
CategoryFinder.php	6.2 KB	-rw-r--r--	2016-11-28 20:20
CategoryPage.php	21.84 KB	-rw-r--r--	2011-10-28 23:20
CategoryViewer.php	22.5 KB	-rw-r--r--	2016-11-28 20:20
Categoryfinder.php	5.13 KB	-rw-r--r--	2011-05-19 02:03
Cdb.php	3.57 KB	-rw-r--r--	2011-05-28 20:58
Cdb_PHP.php	10.11 KB	-rw-r--r--	2011-05-28 19:51
ChangeTags.php	6.66 KB	-rw-r--r--	2011-07-09 11:01
ChangesFeed.php	5.82 KB	-rw-r--r--	2011-06-19 07:45
ChangesList.php	35.52 KB	-rw-r--r--	2011-10-25 23:51
Collation.php	9.86 KB	-rw-r--r--	2011-09-21 00:36
ConfEditor.php	29.16 KB	-rw-r--r--	2011-08-27 21:28
Cookie.php	6.17 KB	-rw-r--r--	2011-06-02 00:35
CryptRand.php	16.96 KB	-rw-r--r--	2012-03-21 11:43
DefaultSettings.php	265.47 KB	-rw-r--r--	2016-11-28 20:20
Defines.php	7.85 KB	-rw-r--r--	2016-11-28 20:20
DeprecatedGlobal.php	1.9 KB	-rw-r--r--	2016-11-28 20:20
DerivativeRequest.php	2.46 KB	-rw-r--r--	2016-11-28 20:20
DjVuImage.php	10.58 KB	-rw-r--r--	2011-05-18 00:03
DummyLinker.php	9.01 KB	-rw-r--r--	2016-11-28 20:20
EditPage.php	136.53 KB	-rw-r--r--	2016-11-28 20:20
EventRelayerGroup.php	1.27 KB	-rw-r--r--	2016-11-28 20:20
Exception.php	11.5 KB	-rw-r--r--	2011-10-22 04:34
Export.php	32.27 KB	-rw-r--r--	2011-11-24 02:29
ExternalEdit.php	2.45 KB	-rw-r--r--	2011-09-07 22:14
ExternalStore.php	4.29 KB	-rw-r--r--	2011-05-29 16:24
ExternalStoreDB.php	4.44 KB	-rw-r--r--	2011-10-17 00:24
ExternalStoreHttp.php	463 B	-rw-r--r--	2010-01-08 22:35
ExternalUser.php	8.96 KB	-rw-r--r--	2011-05-26 21:52
FakeTitle.php	6.6 KB	-rw-r--r--	2011-05-26 22:38
Fallback.php	5.49 KB	-rw-r--r--	2011-05-28 20:58
FauxRequest.php	5.66 KB	-rw-r--r--	2016-11-28 20:20
Feed.php	10.58 KB	-rw-r--r--	2016-11-28 20:20
FeedUtils.php	8.64 KB	-rw-r--r--	2016-11-28 20:20
FileDeleteForm.php	11.7 KB	-rw-r--r--	2016-11-28 20:20
ForkController.php	5.4 KB	-rw-r--r--	2016-11-28 20:20
FormOptions.php	11.08 KB	-rw-r--r--	2016-11-28 20:20
GenderCache.php	3.35 KB	-rw-r--r--	2011-09-19 14:58
GitInfo.php	10.74 KB	-rw-r--r--	2016-11-28 20:20
GlobalFunctions.php	106.76 KB	-rw-r--r--	2016-11-28 20:20
HTMLForm.php	49.55 KB	-rw-r--r--	2011-11-09 18:04
HistoryBlob.php	16.15 KB	-rw-r--r--	2016-11-28 20:20
HistoryPage.php	21.66 KB	-rw-r--r--	2011-09-16 16:12
Hooks.php	6.47 KB	-rw-r--r--	2016-11-28 20:20
Html.php	31.91 KB	-rw-r--r--	2016-11-28 20:20
HtmlFormatter.php	1015 B	-rw-r--r--	2016-11-28 20:20
HttpFunctions.old.php	319 B	-rw-r--r--	2011-05-28 17:59
HttpFunctions.php	21.28 KB	-rw-r--r--	2011-09-16 15:19
IP.php	21.58 KB	-rw-r--r--	2011-11-09 16:00
ImageFunctions.php	2.58 KB	-rw-r--r--	2011-05-29 16:24
ImageGallery.php	10.46 KB	-rw-r--r--	2011-07-16 01:18
ImagePage.php	36 KB	-rw-r--r--	2011-07-11 02:39
ImageQueryPage.php	1.5 KB	-rw-r--r--	2011-05-26 21:21
Import.php	33.63 KB	-rw-r--r--	2011-10-28 23:20
Init.php	4.67 KB	-rw-r--r--	2011-06-17 01:40
Licenses.php	4.89 KB	-rw-r--r--	2016-11-28 20:20
LinkFilter.php	6.08 KB	-rw-r--r--	2016-11-28 20:20
Linker.php	72.71 KB	-rw-r--r--	2016-11-28 20:20
LinksUpdate.php	23.7 KB	-rw-r--r--	2011-11-14 21:58
ListToggle.php	2.02 KB	-rw-r--r--	2016-11-28 20:20
LocalisationCache.php	29.31 KB	-rw-r--r--	2011-09-12 17:03
LogEventsList.php	32.56 KB	-rw-r--r--	2011-07-10 20:12
LogPage.php	16.09 KB	-rw-r--r--	2011-07-10 20:12
MWFunction.php	1.96 KB	-rw-r--r--	2011-03-22 21:23
MWGrants.php	5.85 KB	-rw-r--r--	2016-11-28 20:20
MWNamespace.php	13.76 KB	-rw-r--r--	2016-11-28 20:20
MWTimestamp.php	6.1 KB	-rw-r--r--	2016-11-28 20:20
MagicWord.php	15.1 KB	-rw-r--r--	2016-11-28 20:20
MagicWordArray.php	7.86 KB	-rw-r--r--	2016-11-28 20:20
MediaWiki.php	35.29 KB	-rw-r--r--	2016-11-28 20:20
MediaWikiServices.php	18.8 KB	-rw-r--r--	2016-11-28 20:20
MediaWikiVersionFetcher.php	746 B	-rw-r--r--	2016-11-28 20:20
MergeHistory.php	10.41 KB	-rw-r--r--	2016-11-28 20:20
Message.php	32.49 KB	-rw-r--r--	2016-11-28 20:20
MessageBlobStore.php	10.5 KB	-rw-r--r--	2011-05-28 00:42
Metadata.php	5.53 KB	-rw-r--r--	2011-06-30 00:09
MimeMagic.php	2.87 KB	-rw-r--r--	2016-11-28 20:20
MovePage.php	18.08 KB	-rw-r--r--	2016-11-28 20:20
Namespace.php	7.78 KB	-rw-r--r--	2011-05-21 21:07
NoLocalSettings.php	2.03 KB	-rw-r--r--	2016-11-28 20:20
OutputHandler.php	6.19 KB	-rw-r--r--	2016-11-28 20:20
OutputPage.php	113 KB	-rw-r--r--	2016-11-28 20:20
PHPVersionCheck.php	8.52 KB	-rw-r--r--	2016-11-28 20:20
PHPVersionError.php	2.96 KB	-rw-r--r--	2011-07-19 01:06
PageProps.php	8.52 KB	-rw-r--r--	2016-11-28 20:20
PageQueryPage.php	680 B	-rw-r--r--	2010-12-22 15:16
Pager.php	30.89 KB	-rw-r--r--	2011-07-06 04:26
PathRouter.php	12.43 KB	-rw-r--r--	2016-11-28 20:20
PatrolLog.php	2.53 KB	-rw-r--r--	2011-07-10 20:12
Pingback.php	7.31 KB	-rw-r--r--	2016-11-28 20:20
PoolCounter.php	5.65 KB	-rw-r--r--	2011-05-28 21:00
Preferences.php	51.21 KB	-rw-r--r--	2016-11-28 20:20
PrefixSearch.php	12.36 KB	-rw-r--r--	2016-11-28 20:20
ProtectionForm.php	19.56 KB	-rw-r--r--	2016-11-28 20:20
ProxyLookup.php	2.12 KB	-rw-r--r--	2016-11-28 20:20
ProxyTools.php	4.6 KB	-rw-r--r--	2011-09-07 22:14
QueryPage.php	22.76 KB	-rw-r--r--	2011-10-17 00:24
RawPage.php	6.2 KB	-rw-r--r--	2011-07-05 23:28
RecentChange.php	23.52 KB	-rw-r--r--	2011-08-27 21:28
RequestContext.php	7.85 KB	-rw-r--r--	2012-01-04 02:07
Revision.php	54.61 KB	-rw-r--r--	2016-11-28 20:20
RevisionList.php	9.25 KB	-rw-r--r--	2016-11-28 20:20
Sanitizer.php	58.04 KB	-rw-r--r--	2016-11-28 20:20
SeleniumWebSettings.php	6.3 KB	-rw-r--r--	2011-06-26 01:27
ServiceWiring.php	11.72 KB	-rw-r--r--	2016-11-28 20:20
Setup.php	27.89 KB	-rw-r--r--	2016-11-28 20:20
SiteConfiguration.php	18.34 KB	-rw-r--r--	2016-11-28 20:20
SiteStats.php	9.85 KB	-rw-r--r--	2016-11-28 20:20
Skin.php	42.13 KB	-rw-r--r--	2012-02-25 16:23
SkinLegacy.php	22.82 KB	-rw-r--r--	2011-10-20 22:50
SkinTemplate.php	64.93 KB	-rw-r--r--	2011-12-09 21:31
SpecialPage.php	31.23 KB	-rw-r--r--	2012-01-04 02:07
SpecialPageFactory.php	17.68 KB	-rw-r--r--	2011-10-28 23:20
SquidPurgeClient.php	10.02 KB	-rw-r--r--	2011-05-21 21:54
Status.php	12.63 KB	-rw-r--r--	2016-11-28 20:20
StreamFile.php	4.66 KB	-rw-r--r--	2016-11-28 20:20
StringUtils.php	11.32 KB	-rw-r--r--	2011-05-21 21:54
StubObject.php	6.4 KB	-rw-r--r--	2016-11-28 20:20
TemplateParser.php	6.46 KB	-rw-r--r--	2016-11-28 20:20
TemplatesOnThisPageFormatter.php	5.36 KB	-rw-r--r--	2016-11-28 20:20
Title.php	140.81 KB	-rw-r--r--	2016-11-28 20:20
TitleArray.php	1.83 KB	-rw-r--r--	2016-11-28 20:20
TitleArrayFromResult.php	1.95 KB	-rw-r--r--	2016-11-28 20:20
User.php	114.26 KB	-rw-r--r--	2012-03-21 11:43
UserArray.php	1.9 KB	-rw-r--r--	2011-05-28 17:59
UserMailer.php	20.52 KB	-rw-r--r--	2012-02-02 15:15
UserRightsProxy.php	5.38 KB	-rw-r--r--	2010-10-14 01:11
ViewCountUpdate.php	3.4 KB	-rw-r--r--	2011-06-25 21:13
WatchedItem.php	5.04 KB	-rw-r--r--	2016-11-28 20:20
WatchedItemQueryService.php	20.4 KB	-rw-r--r--	2016-11-28 20:20
WatchedItemStore.php	25.57 KB	-rw-r--r--	2016-11-28 20:20
WebRequest.php	37.68 KB	-rw-r--r--	2016-11-28 20:20
WebRequestUpload.php	3.4 KB	-rw-r--r--	2016-11-28 20:20
WebResponse.php	9.2 KB	-rw-r--r--	2016-11-28 20:20
WebStart.php	5.54 KB	-rw-r--r--	2016-11-28 20:20
Wiki.php	20.05 KB	-rw-r--r--	2012-01-03 18:34
WikiCategoryPage.php	898 B	-rw-r--r--	2011-08-27 21:28
WikiError.php	3.84 KB	-rw-r--r--	2011-05-06 23:09
WikiFilePage.php	3.34 KB	-rw-r--r--	2011-07-01 22:07
WikiMap.php	8.19 KB	-rw-r--r--	2016-11-28 20:20
WikiPage.php	78.59 KB	-rw-r--r--	2012-01-12 23:09
Xml.php	26.47 KB	-rw-r--r--	2016-11-28 20:20
XmlSelect.php	3.46 KB	-rw-r--r--	2016-11-28 20:20
XmlTypeCheck.php	2.45 KB	-rw-r--r--	2011-05-21 21:36
ZhClient.php	2.92 KB	-rw-r--r--	2011-05-29 16:25
ZhConversion.php	415 KB	-rw-r--r--	2011-10-27 23:40
ZipDirectoryReader.php	20.35 KB	-rw-r--r--	2011-05-13 18:16
limit.sh	2.86 KB	-rwxr-xr-x	2016-11-28 20:20
mime.info	3.82 KB	-rw-r--r--	2011-06-29 22:31
mime.types	5.18 KB	-rw-r--r--	2011-06-29 22:31
tidy.conf	413 B	-rw-r--r--	2009-10-25 14:43
wp-blog-header.php	2.74 KB	-r--r--r--	2026-08-22 08:29
wp-cron.php	2.74 KB	-rw-r--r--	2026-08-22 08:29

Rename

<?php
/**
 * @defgroup Pager Pager
 *
 * @file
 * @ingroup Pager
 */

/**
 * Basic pager interface.
 * @ingroup Pager
 */
interface Pager {
	function getNavigationBar();
	function getBody();
}

/**
 * IndexPager is an efficient pager which uses a (roughly unique) index in the
 * data set to implement paging, rather than a "LIMIT offset,limit" clause.
 * In MySQL, such a limit/offset clause requires counting through the
 * specified number of offset rows to find the desired data, which can be
 * expensive for large offsets.
 *
 * ReverseChronologicalPager is a child class of the abstract IndexPager, and
 * contains  some formatting and display code which is specific to the use of
 * timestamps as  indexes. Here is a synopsis of its operation:
 *
 *    * The query is specified by the offset, limit and direction (dir)
 *      parameters, in addition to any subclass-specific parameters.
 *    * The offset is the non-inclusive start of the DB query. A row with an
 *      index value equal to the offset will never be shown.
 *    * The query may either be done backwards, where the rows are returned by
 *      the database in the opposite order to which they are displayed to the
 *      user, or forwards. This is specified by the "dir" parameter, dir=prev
 *      means backwards, anything else means forwards. The offset value
 *      specifies the start of the database result set, which may be either
 *      the start or end of the displayed data set. This allows "previous"
 *      links to be implemented without knowledge of the index value at the
 *      start of the previous page.
 *    * An additional row beyond the user-specified limit is always requested.
 *      This allows us to tell whether we should display a "next" link in the
 *      case of forwards mode, or a "previous" link in the case of backwards
 *      mode. Determining whether to display the other link (the one for the
 *      page before the start of the database result set) can be done
 *      heuristically by examining the offset.
 *
 *    * An empty offset indicates that the offset condition should be omitted
 *      from the query. This naturally produces either the first page or the
 *      last page depending on the dir parameter.
 *
 *  Subclassing the pager to implement concrete functionality should be fairly
 *  simple, please see the examples in HistoryPage.php and
 *  SpecialBlockList.php. You just need to override formatRow(),
 *  getQueryInfo() and getIndexField(). Don't forget to call the parent
 *  constructor if you override it.
 *
 * @ingroup Pager
 */
abstract class IndexPager implements Pager {
	public $mRequest;
	public $mLimitsShown = array( 20, 50, 100, 250, 500 );
	public $mDefaultLimit = 50;
	public $mOffset, $mLimit;
	public $mQueryDone = false;
	public $mDb;
	public $mPastTheEndRow;

/**
	 * The index to actually be used for ordering.  This is a single string
	 * even if multiple orderings are supported.
	 */
	protected $mIndexField;
	/** For pages that support multiple types of ordering, which one to use.
	 */
	protected $mOrderType;
	/**
	 * $mDefaultDirection gives the direction to use when sorting results:
	 * false for ascending, true for descending.  If $mIsBackwards is set, we
	 * start from the opposite end, but we still sort the page itself according
	 * to $mDefaultDirection.  E.g., if $mDefaultDirection is false but we're
	 * going backwards, we'll display the last page of results, but the last
	 * result will be at the bottom, not the top.
	 *
	 * Like $mIndexField, $mDefaultDirection will be a single value even if the
	 * class supports multiple default directions for different order types.
	 */
	public $mDefaultDirection;
	public $mIsBackwards;

/** True if the current result set is the first one */
	public $mIsFirst;

/**
	 * Result object for the query. Warning: seek before use.
	 *
	 * @var ResultWrapper
	 */
	public $mResult;

public function __construct() {
		global $wgRequest, $wgUser;
		$this->mRequest = $wgRequest;

# NB: the offset is quoted, not validated. It is treated as an
		# arbitrary string to support the widest variety of index types. Be
		# careful outputting it into HTML!
		$this->mOffset = $this->mRequest->getText( 'offset' );

# Use consistent behavior for the limit options
		$this->mDefaultLimit = intval( $wgUser->getOption( 'rclimit' ) );
		list( $this->mLimit, /* $offset */ ) = $this->mRequest->getLimitOffset();

$this->mIsBackwards = ( $this->mRequest->getVal( 'dir' ) == 'prev' );
		$this->mDb = wfGetDB( DB_SLAVE );

$index = $this->getIndexField();
		$order = $this->mRequest->getVal( 'order' );
		if( is_array( $index ) && isset( $index[$order] ) ) {
			$this->mOrderType = $order;
			$this->mIndexField = $index[$order];
		} elseif( is_array( $index ) ) {
			# First element is the default
			reset( $index );
			list( $this->mOrderType, $this->mIndexField ) = each( $index );
		} else {
			# $index is not an array
			$this->mOrderType = null;
			$this->mIndexField = $index;
		}

if( !isset( $this->mDefaultDirection ) ) {
			$dir = $this->getDefaultDirections();
			$this->mDefaultDirection = is_array( $dir )
				? $dir[$this->mOrderType]
				: $dir;
		}
	}

/**
	 * Do the query, using information from the object context. This function
	 * has been kept minimal to make it overridable if necessary, to allow for
	 * result sets formed from multiple DB queries.
	 */
	public function doQuery() {
		# Use the child class name for profiling
		$fname = __METHOD__ . ' (' . get_class( $this ) . ')';
		wfProfileIn( $fname );

$descending = ( $this->mIsBackwards == $this->mDefaultDirection );
		# Plus an extra row so that we can tell the "next" link should be shown
		$queryLimit = $this->mLimit + 1;

$this->mResult = $this->reallyDoQuery(
			$this->mOffset,
			$queryLimit,
			$descending
		);
		$this->extractResultInfo( $this->mOffset, $queryLimit, $this->mResult );
		$this->mQueryDone = true;

$this->preprocessResults( $this->mResult );
		$this->mResult->rewind(); // Paranoia

wfProfileOut( $fname );
	}

/**
	 * @return ResultWrapper The result wrapper.
	 */
	function getResult() {
		return $this->mResult;
	}

/**
	 * Set the offset from an other source than $wgRequest
	 */
	function setOffset( $offset ) {
		$this->mOffset = $offset;
	}
	/**
	 * Set the limit from an other source than $wgRequest
	 */
	function setLimit( $limit ) {
		$this->mLimit = $limit;
	}

/**
	 * Extract some useful data from the result object for use by
	 * the navigation bar, put it into $this
	 *
	 * @param $offset String: index offset, inclusive
	 * @param $limit Integer: exact query limit
	 * @param $res ResultWrapper
	 */
	function extractResultInfo( $offset, $limit, ResultWrapper $res ) {
		$numRows = $res->numRows();
		if ( $numRows ) {
			# Remove any table prefix from index field
			$parts = explode( '.', $this->mIndexField );
			$indexColumn = end( $parts );

$row = $res->fetchRow();
			$firstIndex = $row[$indexColumn];

# Discard the extra result row if there is one
			if ( $numRows > $this->mLimit && $numRows > 1 ) {
				$res->seek( $numRows - 1 );
				$this->mPastTheEndRow = $res->fetchObject();
				$indexField = $this->mIndexField;
				$this->mPastTheEndIndex = $this->mPastTheEndRow->$indexField;
				$res->seek( $numRows - 2 );
				$row = $res->fetchRow();
				$lastIndex = $row[$indexColumn];
			} else {
				$this->mPastTheEndRow = null;
				# Setting indexes to an empty string means that they will be
				# omitted if they would otherwise appear in URLs. It just so
				# happens that this  is the right thing to do in the standard
				# UI, in all the relevant cases.
				$this->mPastTheEndIndex = '';
				$res->seek( $numRows - 1 );
				$row = $res->fetchRow();
				$lastIndex = $row[$indexColumn];
			}
		} else {
			$firstIndex = '';
			$lastIndex = '';
			$this->mPastTheEndRow = null;
			$this->mPastTheEndIndex = '';
		}

if ( $this->mIsBackwards ) {
			$this->mIsFirst = ( $numRows < $limit );
			$this->mIsLast = ( $offset == '' );
			$this->mLastShown = $firstIndex;
			$this->mFirstShown = $lastIndex;
		} else {
			$this->mIsFirst = ( $offset == '' );
			$this->mIsLast = ( $numRows < $limit );
			$this->mLastShown = $lastIndex;
			$this->mFirstShown = $firstIndex;
		}
	}

/**
	 * Get some text to go in brackets in the "function name" part of the SQL comment
	 *
	 * @return String
	 */
	function getSqlComment() {
		return get_class( $this );
	}

/**
	 * Do a query with specified parameters, rather than using the object
	 * context
	 *
	 * @param $offset String: index offset, inclusive
	 * @param $limit Integer: exact query limit
	 * @param $descending Boolean: query direction, false for ascending, true for descending
	 * @return ResultWrapper
	 */
	function reallyDoQuery( $offset, $limit, $descending ) {
		$fname = __METHOD__ . ' (' . $this->getSqlComment() . ')';
		$info = $this->getQueryInfo();
		$tables = $info['tables'];
		$fields = $info['fields'];
		$conds = isset( $info['conds'] ) ? $info['conds'] : array();
		$options = isset( $info['options'] ) ? $info['options'] : array();
		$join_conds = isset( $info['join_conds'] ) ? $info['join_conds'] : array();
		if ( $descending ) {
			$options['ORDER BY'] = $this->mIndexField;
			$operator = '>';
		} else {
			$options['ORDER BY'] = $this->mIndexField . ' DESC';
			$operator = '<';
		}
		if ( $offset != '' ) {
			$conds[] = $this->mIndexField . $operator . $this->mDb->addQuotes( $offset );
		}
		$options['LIMIT'] = intval( $limit );
		$res = $this->mDb->select( $tables, $fields, $conds, $fname, $options, $join_conds );
		return new ResultWrapper( $this->mDb, $res );
	}

/**
	 * Pre-process results; useful for performing batch existence checks, etc.
	 *
	 * @param $result ResultWrapper
	 */
	protected function preprocessResults( $result ) {}

/**
	 * Get the formatted result list. Calls getStartBody(), formatRow() and
	 * getEndBody(), concatenates the results and returns them.
	 *
	 * @return String
	 */
	function getBody() {
		if ( !$this->mQueryDone ) {
			$this->doQuery();
		}
		# Don't use any extra rows returned by the query
		$numRows = min( $this->mResult->numRows(), $this->mLimit );

$s = $this->getStartBody();
		if ( $numRows ) {
			if ( $this->mIsBackwards ) {
				for ( $i = $numRows - 1; $i >= 0; $i-- ) {
					$this->mResult->seek( $i );
					$row = $this->mResult->fetchObject();
					$s .= $this->formatRow( $row );
				}
			} else {
				$this->mResult->seek( 0 );
				for ( $i = 0; $i < $numRows; $i++ ) {
					$row = $this->mResult->fetchObject();
					$s .= $this->formatRow( $row );
				}
			}
		} else {
			$s .= $this->getEmptyBody();
		}
		$s .= $this->getEndBody();
		return $s;
	}

/**
	 * Make a self-link
	 *
	 * @param $text String: text displayed on the link
	 * @param $query Array: associative array of paramter to be in the query string
	 * @param $type String: value of the "rel" attribute
	 * @return String: HTML fragment
	 */
	function makeLink($text, $query = null, $type=null) {
		if ( $query === null ) {
			return $text;
		}

$attrs = array();
		if( in_array( $type, array( 'first', 'prev', 'next', 'last' ) ) ) {
			# HTML5 rel attributes
			$attrs['rel'] = $type;
		}

if( $type ) {
			$attrs['class'] = "mw-{$type}link";
		}
		return $this->getSkin()->link(
			$this->getTitle(),
			$text,
			$attrs,
			$query + $this->getDefaultQuery(),
			array( 'noclasses', 'known' )
		);
	}

/**
	 * Hook into getBody(), allows text to be inserted at the start. This
	 * will be called even if there are no rows in the result set.
	 *
	 * @return String
	 */
	function getStartBody() {
		return '';
	}

/**
	 * Hook into getBody() for the end of the list
	 *
	 * @return String
	 */
	function getEndBody() {
		return '';
	}

/**
	 * Hook into getBody(), for the bit between the start and the
	 * end when there are no rows
	 *
	 * @return String
	 */
	function getEmptyBody() {
		return '';
	}

/**
	 * Title used for self-links. Override this if you want to be able to
	 * use a title other than $wgTitle
	 *
	 * @return Title object
	 */
	function getTitle() {
		return $GLOBALS['wgTitle'];
	}

/**
	 * Get the current skin. This can be overridden if necessary.
	 *
	 * @return Skin object
	 */
	function getSkin() {
		if ( !isset( $this->mSkin ) ) {
			global $wgUser;
			$this->mSkin = $wgUser->getSkin();
		}
		return $this->mSkin;
	}

/**
	 * Get an array of query parameters that should be put into self-links.
	 * By default, all parameters passed in the URL are used, except for a
	 * short blacklist.
	 *
	 * @return Associative array
	 */
	function getDefaultQuery() {
		global $wgRequest;

if ( !isset( $this->mDefaultQuery ) ) {
			$this->mDefaultQuery = $wgRequest->getQueryValues();
			unset( $this->mDefaultQuery['title'] );
			unset( $this->mDefaultQuery['dir'] );
			unset( $this->mDefaultQuery['offset'] );
			unset( $this->mDefaultQuery['limit'] );
			unset( $this->mDefaultQuery['order'] );
			unset( $this->mDefaultQuery['month'] );
			unset( $this->mDefaultQuery['year'] );
		}
		return $this->mDefaultQuery;
	}

/**
	 * Get the number of rows in the result set
	 *
	 * @return Integer
	 */
	function getNumRows() {
		if ( !$this->mQueryDone ) {
			$this->doQuery();
		}
		return $this->mResult->numRows();
	}

/**
	 * Get a URL query array for the prev, next, first and last links.
	 *
	 * @return Array
	 */
	function getPagingQueries() {
		if ( !$this->mQueryDone ) {
			$this->doQuery();
		}

# Don't announce the limit everywhere if it's the default
		$urlLimit = $this->mLimit == $this->mDefaultLimit ? '' : $this->mLimit;

if ( $this->mIsFirst ) {
			$prev = false;
			$first = false;
		} else {
			$prev = array(
				'dir' => 'prev',
				'offset' => $this->mFirstShown,
				'limit' => $urlLimit
			);
			$first = array( 'limit' => $urlLimit );
		}
		if ( $this->mIsLast ) {
			$next = false;
			$last = false;
		} else {
			$next = array( 'offset' => $this->mLastShown, 'limit' => $urlLimit );
			$last = array( 'dir' => 'prev', 'limit' => $urlLimit );
		}
		return array(
			'prev' => $prev,
			'next' => $next,
			'first' => $first,
			'last' => $last
		);
	}

/**
	 * Returns whether to show the "navigation bar"
	 *
	 * @return Boolean
	 */
	function isNavigationBarShown() {
		if ( !$this->mQueryDone ) {
			$this->doQuery();
		}
		// Hide navigation by default if there is nothing to page
		return !($this->mIsFirst && $this->mIsLast);
	}

/**
	 * Get paging links. If a link is disabled, the item from $disabledTexts
	 * will be used. If there is no such item, the unlinked text from
	 * $linkTexts will be used. Both $linkTexts and $disabledTexts are arrays
	 * of HTML.
	 *
	 * @return Array
	 */
	function getPagingLinks( $linkTexts, $disabledTexts = array() ) {
		$queries = $this->getPagingQueries();
		$links = array();
		foreach ( $queries as $type => $query ) {
			if ( $query !== false ) {
				$links[$type] = $this->makeLink(
					$linkTexts[$type],
					$queries[$type],
					$type
				);
			} elseif ( isset( $disabledTexts[$type] ) ) {
				$links[$type] = $disabledTexts[$type];
			} else {
				$links[$type] = $linkTexts[$type];
			}
		}
		return $links;
	}

/**
	 * Abstract formatting function. This should return an HTML string
	 * representing the result row $row. Rows will be concatenated and
	 * returned by getBody()
	 *
	 * @param $row Object: database row
	 * @return String
	 */
	abstract function formatRow( $row );

/**
	 * This function should be overridden to provide all parameters
	 * needed for the main paged query. It returns an associative
	 * array with the following elements:
	 *    tables => Table(s) for passing to Database::select()
	 *    fields => Field(s) for passing to Database::select(), may be *
	 *    conds => WHERE conditions
	 *    options => option array
	 *    join_conds => JOIN conditions
	 *
	 * @return Array
	 */
	abstract function getQueryInfo();

/**
	 * This function should be overridden to return the name of the index fi-
	 * eld.  If the pager supports multiple orders, it may return an array of
	 * 'querykey' => 'indexfield' pairs, so that a request with &count=querykey
	 * will use indexfield to sort.  In this case, the first returned key is
	 * the default.
	 *
	 * Needless to say, it's really not a good idea to use a non-unique index
	 * for this!  That won't page right.
	 */
	abstract function getIndexField();

/**
	 * Return the default sorting direction: false for ascending, true for de-
	 * scending.  You can also have an associative array of ordertype => dir,
	 * if multiple order types are supported.  In this case getIndexField()
	 * must return an array, and the keys of that must exactly match the keys
	 * of this.
	 *
	 * For backward compatibility, this method's return value will be ignored
	 * if $this->mDefaultDirection is already set when the constructor is
	 * called, for instance if it's statically initialized.  In that case the
	 * value of that variable (which must be a boolean) will be used.
	 *
	 * Note that despite its name, this does not return the value of the
	 * $this->mDefaultDirection member variable.  That's the default for this
	 * particular instantiation, which is a single value.  This is the set of
	 * all defaults for the class.
	 *
	 * @return Boolean
	 */
	protected function getDefaultDirections() { return false; }
}

/**
 * IndexPager with an alphabetic list and a formatted navigation bar
 * @ingroup Pager
 */
abstract class AlphabeticPager extends IndexPager {
	/**
	 * Shamelessly stolen bits from ReverseChronologicalPager,
	 * didn't want to do class magic as may be still revamped
	 */
	function getNavigationBar() {
		global $wgLang;

if ( !$this->isNavigationBarShown() ) return '';

if( isset( $this->mNavigationBar ) ) {
			return $this->mNavigationBar;
		}

$opts = array( 'parsemag', 'escapenoentities' );
		$linkTexts = array(
			'prev' => wfMsgExt(
				'prevn',
				$opts,
				$wgLang->formatNum( $this->mLimit )
			),
			'next' => wfMsgExt(
				'nextn',
				$opts,
				$wgLang->formatNum($this->mLimit )
			),
			'first' => wfMsgExt( 'page_first', $opts ),
			'last' => wfMsgExt( 'page_last', $opts )
		);

$pagingLinks = $this->getPagingLinks( $linkTexts );
		$limitLinks = $this->getLimitLinks();
		$limits = $wgLang->pipeList( $limitLinks );

$this->mNavigationBar =
			"(" . $wgLang->pipeList(
				array( $pagingLinks['first'],
				$pagingLinks['last'] )
			) . ") " .
			wfMsgHtml( 'viewprevnext', $pagingLinks['prev'],
			$pagingLinks['next'], $limits );

if( !is_array( $this->getIndexField() ) ) {
			# Early return to avoid undue nesting
			return $this->mNavigationBar;
		}

$extra = '';
		$first = true;
		$msgs = $this->getOrderTypeMessages();
		foreach( array_keys( $msgs ) as $order ) {
			if( $first ) {
				$first = false;
			} else {
				$extra .= wfMsgExt( 'pipe-separator' , 'escapenoentities' );
			}

if( $order == $this->mOrderType ) {
				$extra .= wfMsgHTML( $msgs[$order] );
			} else {
				$extra .= $this->makeLink(
					wfMsgHTML( $msgs[$order] ),
					array( 'order' => $order )
				);
			}
		}

if( $extra !== '' ) {
			$this->mNavigationBar .= " ($extra)";
		}

return $this->mNavigationBar;
	}

/**
	 * If this supports multiple order type messages, give the message key for
	 * enabling each one in getNavigationBar.  The return type is an associa-
	 * tive array whose keys must exactly match the keys of the array returned
	 * by getIndexField(), and whose values are message keys.
	 *
	 * @return Array
	 */
	protected function getOrderTypeMessages() {
		return null;
	}
}

/**
 * IndexPager with a formatted navigation bar
 * @ingroup Pager
 */
abstract class ReverseChronologicalPager extends IndexPager {
	public $mDefaultDirection = true;
	public $mYear;
	public $mMonth;

function __construct() {
		parent::__construct();
	}

function getNavigationBar() {
		global $wgLang;

if ( !$this->isNavigationBarShown() ) {
			return '';
		}

if ( isset( $this->mNavigationBar ) ) {
			return $this->mNavigationBar;
		}
		$nicenumber = $wgLang->formatNum( $this->mLimit );
		$linkTexts = array(
			'prev' => wfMsgExt(
				'pager-newer-n',
				array( 'parsemag', 'escape' ),
				$nicenumber
			),
			'next' => wfMsgExt(
				'pager-older-n',
				array( 'parsemag', 'escape' ),
				$nicenumber
			),
			'first' => wfMsgHtml( 'histlast' ),
			'last' => wfMsgHtml( 'histfirst' )
		);

$pagingLinks = $this->getPagingLinks( $linkTexts );
		$limitLinks = $this->getLimitLinks();
		$limits = $wgLang->pipeList( $limitLinks );

$this->mNavigationBar = "({$pagingLinks['first']}" .
			wfMsgExt( 'pipe-separator' , 'escapenoentities' ) .
			"{$pagingLinks['last']}) " .
			wfMsgHTML(
				'viewprevnext',
				$pagingLinks['prev'], $pagingLinks['next'],
				$limits
			);
		return $this->mNavigationBar;
	}

/**
 * Table-based display with a user-selectable sort order
 * @ingroup Pager
 */
abstract class TablePager extends IndexPager {
	var $mSort;
	var $mCurrentRow;

parent::__construct();
	}

function getStartBody() {
		global $wgStylePath;
		$tableClass = htmlspecialchars( $this->getTableClass() );
		$sortClass = htmlspecialchars( $this->getSortHeaderClass() );

$s = "<table style='border:1;' class=\"$tableClass\"><thead><tr>\n";
		$fields = $this->getFieldNames();

# Make table header
		foreach ( $fields as $field => $name ) {
			if ( strval( $name ) == '' ) {
				$s .= "<th>&#160;</th>\n";
			} elseif ( $this->isFieldSortable( $field ) ) {
				$query = array( 'sort' => $field, 'limit' => $this->mLimit );
				if ( $field == $this->mSort ) {
					# This is the sorted column
					# Prepare a link that goes in the other sort order
					if ( $this->mDefaultDirection ) {
						# Descending
						$image = 'Arr_d.png';
						$query['asc'] = '1';
						$query['desc'] = '';
						$alt = htmlspecialchars( wfMsg( 'descending_abbrev' ) );
					} else {
						# Ascending
						$image = 'Arr_u.png';
						$query['asc'] = '';
						$query['desc'] = '1';
						$alt = htmlspecialchars( wfMsg( 'ascending_abbrev' ) );
					}
					$image = htmlspecialchars( "$wgStylePath/common/images/$image" );
					$link = $this->makeLink(
						"<img width=\"12\" height=\"12\" alt=\"$alt\" src=\"$image\" />" .
						htmlspecialchars( $name ), $query );
					$s .= "<th class=\"$sortClass\">$link</th>\n";
				} else {
					$s .= '<th>' . $this->makeLink( htmlspecialchars( $name ), $query ) . "</th>\n";
				}
			} else {
				$s .= '<th>' . htmlspecialchars( $name ) . "</th>\n";
			}
		}
		$s .= "</tr></thead><tbody>\n";
		return $s;
	}

function getEndBody() {
		return "</tbody></table>\n";
	}

function getEmptyBody() {
		$colspan = count( $this->getFieldNames() );
		$msgEmpty = wfMsgHtml( 'table_pager_empty' );
		return "<tr><td colspan=\"$colspan\">$msgEmpty</td></tr>\n";
	}

/**
	 * Get a class name to be applied to the given row.
	 *
	 * @param $row Object: the database result row
	 * @return String
	 */
	function getRowClass( $row ) {
		return '';
	}

/**
	 * Get attributes to be applied to the given row.
	 *
	 * @param $row Object: the database result row
	 * @return Associative array
	 */
	function getRowAttrs( $row ) {
		$class = $this->getRowClass( $row );
		if ( $class === '' ) {
			// Return an empty array to avoid clutter in HTML like class=""
			return array();
		} else {
			return array( 'class' => $this->getRowClass( $row ) );
		}
	}

/**
	 * Get any extra attributes to be applied to the given cell. Don't
	 * take this as an excuse to hardcode styles; use classes and
	 * CSS instead.  Row context is available in $this->mCurrentRow
	 *
	 * @param $field The column
	 * @param $value The cell contents
	 * @return Associative array
	 */
	function getCellAttrs( $field, $value ) {
		return array( 'class' => 'TablePager_col_' . $field );
	}

function getIndexField() {
		return $this->mSort;
	}

function getTableClass() {
		return 'TablePager';
	}

function getNavClass() {
		return 'TablePager_nav';
	}

function getSortHeaderClass() {
		return 'TablePager_sort';
	}

/**
	 * A navigation bar with images
	 */
	function getNavigationBar() {
		global $wgStylePath, $wgLang;

if ( !$this->isNavigationBarShown() ) {
			return '';
		}

$path = "$wgStylePath/common/images";
		$labels = array(
			'first' => 'table_pager_first',
			'prev' => 'table_pager_prev',
			'next' => 'table_pager_next',
			'last' => 'table_pager_last',
		);
		$images = array(
			'first' => 'arrow_first_25.png',
			'prev' => 'arrow_left_25.png',
			'next' => 'arrow_right_25.png',
			'last' => 'arrow_last_25.png',
		);
		$disabledImages = array(
			'first' => 'arrow_disabled_first_25.png',
			'prev' => 'arrow_disabled_left_25.png',
			'next' => 'arrow_disabled_right_25.png',
			'last' => 'arrow_disabled_last_25.png',
		);
		if( $wgLang->isRTL() ) {
			$keys = array_keys( $labels );
			$images = array_combine( $keys, array_reverse( $images ) );
			$disabledImages = array_combine( $keys, array_reverse( $disabledImages ) );
		}

$linkTexts = array();
		$disabledTexts = array();
		foreach ( $labels as $type => $label ) {
			$msgLabel = wfMsgHtml( $label );
			$linkTexts[$type] = "<img src=\"$path/{$images[$type]}\" alt=\"$msgLabel\"/><br />$msgLabel";
			$disabledTexts[$type] = "<img src=\"$path/{$disabledImages[$type]}\" alt=\"$msgLabel\"/><br />$msgLabel";
		}
		$links = $this->getPagingLinks( $linkTexts, $disabledTexts );

$navClass = htmlspecialchars( $this->getNavClass() );
		$s = "<table class=\"$navClass\"><tr>\n";
		$width = 100 / count( $links ) . '%';
		foreach ( $labels as $type => $label ) {
			$s .= "<td style='width:$width;'>{$links[$type]}</td>\n";
		}
		$s .= "</tr></table>\n";
		return $s;
	}

/**
	 * Get a <select> element which has options for each of the allowed limits
	 *
	 * @return String: HTML fragment
	 */
	function getLimitSelect() {
		global $wgLang;

# Add the current limit from the query string
		# to avoid that the limit is lost after clicking Go next time
		if ( !in_array( $this->mLimit, $this->mLimitsShown ) ) {
			$this->mLimitsShown[] = $this->mLimit;
			sort( $this->mLimitsShown );
		}
		$s = Html::openElement( 'select', array( 'name' => 'limit' ) ) . "\n";
		foreach ( $this->mLimitsShown as $key => $value ) {
			# The pair is either $index => $limit, in which case the $value
			# will be numeric, or $limit => $text, in which case the $value
			# will be a string.
			if( is_int( $value ) ){
				$limit = $value;
				$text = $wgLang->formatNum( $limit );
			} else {
				$limit = $key;
				$text = $value;
			}
			$s .= Xml::option( $text, $limit, $limit == $this->mLimit ) . "\n";
		}
		$s .= Html::closeElement( 'select' );
		return $s;
	}

/**
	 * Get <input type="hidden"> elements for use in a method="get" form.
	 * Resubmits all defined elements of the query string, except for a
	 * blacklist, passed in the $blacklist parameter.
	 *
	 * @return String: HTML fragment
	 */
	function getHiddenFields( $blacklist = array() ) {
		global $wgRequest;

$blacklist = (array)$blacklist;
		$query = $wgRequest->getQueryValues();
		foreach ( $blacklist as $name ) {
			unset( $query[$name] );
		}
		$s = '';
		foreach ( $query as $name => $value ) {
			$encName = htmlspecialchars( $name );
			$encValue = htmlspecialchars( $value );
			$s .= "<input type=\"hidden\" name=\"$encName\" value=\"$encValue\"/>\n";
		}
		return $s;
	}

/**
	 * Get a form containing a limit selection dropdown
	 *
	 * @return String: HTML fragment
	 */
	function getLimitForm() {
		global $wgScript;

return Xml::openElement(
			'form',
			array(
				'method' => 'get',
				'action' => $wgScript
			) ) . "\n" . $this->getLimitDropdown() . "</form>\n";
	}

/**
	 * Gets a limit selection dropdown
	 *
	 * @return string
	 */
	function getLimitDropdown() {
		# Make the select with some explanatory text
		$msgSubmit = wfMsgHtml( 'table_pager_limit_submit' );

return wfMsgHtml( 'table_pager_limit', $this->getLimitSelect() ) .
			"\n<input type=\"submit\" value=\"$msgSubmit\"/>\n" .
			$this->getHiddenFields( array( 'limit' ) );
	}

/**
	 * Return true if the named field should be sortable by the UI, false
	 * otherwise
	 *
	 * @param $field String
	 */
	abstract function isFieldSortable( $field );

/**
	 * Format a table cell. The return value should be HTML, but use an empty
	 * string not &#160; for empty cells. Do not include the <td> and </td>.
	 *
	 * The current result row is available as $this->mCurrentRow, in case you
	 * need more context.
	 *
	 * @param $name String: the database field name
	 * @param $value String: the value retrieved from the database
	 */
	abstract function formatValue( $name, $value );

/**
	 * The database field name used as a default sort order
	 */
	abstract function getDefaultSort();

/**
	 * An array mapping database field names to a textual description of the
	 * field name, for use in the table header. The description should be plain
	 * text, it will be HTML-escaped later.
	 */
	abstract function getFieldNames();
}