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<?php
use Wikimedia\Rdbms\ResultWrapper;
use Wikimedia\Rdbms\IDatabase;
/**
* Extension mechanism for WatchedItemQueryService
*
* @since 1.29
*
* @file
* @ingroup Watchlist
*
* @license GNU GPL v2+
*/
interface WatchedItemQueryServiceExtension {
/**
* Modify the WatchedItemQueryService::getWatchedItemsWithRecentChangeInfo()
* query before it's made.
*
* @warning Any joins added *must* join on a unique key of the target table
* unless you really know what you're doing.
* @param User $user
* @param array $options Options from
* WatchedItemQueryService::getWatchedItemsWithRecentChangeInfo()
* @param IDatabase $db Database connection being used for the query
* @param array &$tables Tables for Database::select()
* @param array &$fields Fields for Database::select()
* @param array &$conds Conditions for Database::select()
* @param array &$dbOptions Options for Database::select()
* @param array &$joinConds Join conditions for Database::select()
*/
public function modifyWatchedItemsWithRCInfoQuery( User $user, array $options, IDatabase $db,
array &$tables, array &$fields, array &$conds, array &$dbOptions, array &$joinConds
);
/**
* Modify the results from WatchedItemQueryService::getWatchedItemsWithRecentChangeInfo()
* before they're returned.
*
* @param User $user
* @param array $options Options from
* WatchedItemQueryService::getWatchedItemsWithRecentChangeInfo()
* @param IDatabase $db Database connection being used for the query
* @param array &$items array of pairs ( WatchedItem $watchedItem, string[] $recentChangeInfo ).
* May be truncated if necessary, in which case $startFrom must be updated.
* @param ResultWrapper|bool $res Database query result
* @param array|null &$startFrom Continuation value. If you truncate $items, set this to
* [ $recentChangeInfo['rc_timestamp'], $recentChangeInfo['rc_id'] ] from the first item
* removed.
*/
public function modifyWatchedItemsWithRCInfo( User $user, array $options, IDatabase $db,
array &$items, $res, &$startFrom
);
}
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