From c1f9b1f7b1b77776192048005dcc66dcf3df2bfb Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Sat, 27 Dec 2014 15:41:37 +0100 Subject: Update to MediaWiki 1.24.1 --- includes/pager/AlphabeticPager.php | 108 ++++ includes/pager/IndexPager.php | 742 +++++++++++++++++++++++++++ includes/pager/Pager.php | 35 ++ includes/pager/ReverseChronologicalPager.php | 118 +++++ includes/pager/TablePager.php | 469 +++++++++++++++++ 5 files changed, 1472 insertions(+) create mode 100644 includes/pager/AlphabeticPager.php create mode 100644 includes/pager/IndexPager.php create mode 100644 includes/pager/Pager.php create mode 100644 includes/pager/ReverseChronologicalPager.php create mode 100644 includes/pager/TablePager.php (limited to 'includes/pager') diff --git a/includes/pager/AlphabeticPager.php b/includes/pager/AlphabeticPager.php new file mode 100644 index 00000000..34c78976 --- /dev/null +++ b/includes/pager/AlphabeticPager.php @@ -0,0 +1,108 @@ +isNavigationBarShown() ) { + return ''; + } + + if ( isset( $this->mNavigationBar ) ) { + return $this->mNavigationBar; + } + + $linkTexts = array( + 'prev' => $this->msg( 'prevn' )->numParams( $this->mLimit )->escaped(), + 'next' => $this->msg( 'nextn' )->numParams( $this->mLimit )->escaped(), + 'first' => $this->msg( 'page_first' )->escaped(), + 'last' => $this->msg( 'page_last' )->escaped() + ); + + $lang = $this->getLanguage(); + + $pagingLinks = $this->getPagingLinks( $linkTexts ); + $limitLinks = $this->getLimitLinks(); + $limits = $lang->pipeList( $limitLinks ); + + $this->mNavigationBar = $this->msg( 'parentheses' )->rawParams( + $lang->pipeList( array( $pagingLinks['first'], + $pagingLinks['last'] ) ) )->escaped() . " " . + $this->msg( 'viewprevnext' )->rawParams( $pagingLinks['prev'], + $pagingLinks['next'], $limits )->escaped(); + + 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 .= $this->msg( 'pipe-separator' )->escaped(); + } + + if ( $order == $this->mOrderType ) { + $extra .= $this->msg( $msgs[$order] )->escaped(); + } else { + $extra .= $this->makeLink( + $this->msg( $msgs[$order] )->escaped(), + array( 'order' => $order ) + ); + } + } + + if ( $extra !== '' ) { + $extra = ' ' . $this->msg( 'parentheses' )->rawParams( $extra )->escaped(); + $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 associative + * 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; + } +} diff --git a/includes/pager/IndexPager.php b/includes/pager/IndexPager.php new file mode 100644 index 00000000..ce6dc50c --- /dev/null +++ b/includes/pager/IndexPager.php @@ -0,0 +1,742 @@ +setContext( $context ); + } + + $this->mRequest = $this->getRequest(); + + # 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 = $this->getUser()->getIntOption( 'rclimit' ); + if ( !$this->mLimit ) { + // Don't override if a subclass calls $this->setLimit() in its constructor. + list( $this->mLimit, /* $offset */ ) = $this->mRequest->getLimitOffset(); + } + + $this->mIsBackwards = ( $this->mRequest->getVal( 'dir' ) == 'prev' ); + # Let the subclass set the DB here; otherwise use a slave DB for the current wiki + $this->mDb = $this->mDb ?: wfGetDB( DB_SLAVE ); + + $index = $this->getIndexField(); // column to sort on + $extraSort = $this->getExtraSortFields(); // extra columns to sort on for query planning + $order = $this->mRequest->getVal( 'order' ); + if ( is_array( $index ) && isset( $index[$order] ) ) { + $this->mOrderType = $order; + $this->mIndexField = $index[$order]; + $this->mExtraSortFields = isset( $extraSort[$order] ) + ? (array)$extraSort[$order] + : array(); + } elseif ( is_array( $index ) ) { + # First element is the default + reset( $index ); + list( $this->mOrderType, $this->mIndexField ) = each( $index ); + $this->mExtraSortFields = isset( $extraSort[$this->mOrderType] ) + ? (array)$extraSort[$this->mOrderType] + : array(); + } else { + # $index is not an array + $this->mOrderType = null; + $this->mIndexField = $index; + $this->mExtraSortFields = (array)$extraSort; + } + + if ( !isset( $this->mDefaultDirection ) ) { + $dir = $this->getDefaultDirections(); + $this->mDefaultDirection = is_array( $dir ) + ? $dir[$this->mOrderType] + : $dir; + } + } + + /** + * Get the Database object in use + * + * @return DatabaseBase + */ + public function getDatabase() { + return $this->mDb; + } + + /** + * 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 ); + + // @todo This should probably compare to DIR_DESCENDING and DIR_ASCENDING constants + $descending = ( $this->mIsBackwards == $this->mDefaultDirection ); + # Plus an extra row so that we can tell the "next" link should be shown + $queryLimit = $this->mLimit + 1; + + if ( $this->mOffset == '' ) { + $isFirst = true; + } else { + // If there's an offset, we may or may not be at the first entry. + // The only way to tell is to run the query in the opposite + // direction see if we get a row. + $oldIncludeOffset = $this->mIncludeOffset; + $this->mIncludeOffset = !$this->mIncludeOffset; + $isFirst = !$this->reallyDoQuery( $this->mOffset, 1, !$descending )->numRows(); + $this->mIncludeOffset = $oldIncludeOffset; + } + + $this->mResult = $this->reallyDoQuery( + $this->mOffset, + $queryLimit, + $descending + ); + + $this->extractResultInfo( $isFirst, $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 the request + * + * @param int|string $offset + */ + function setOffset( $offset ) { + $this->mOffset = $offset; + } + + /** + * Set the limit from an other source than the request + * + * Verifies limit is between 1 and 5000 + * + * @param int|string $limit + */ + function setLimit( $limit ) { + $limit = (int)$limit; + // WebRequest::getLimitOffset() puts a cap of 5000, so do same here. + if ( $limit > 5000 ) { + $limit = 5000; + } + if ( $limit > 0 ) { + $this->mLimit = $limit; + } + } + + /** + * Get the current limit + * + * @return int + */ + function getLimit() { + return $this->mLimit; + } + + /** + * Set whether a row matching exactly the offset should be also included + * in the result or not. By default this is not the case, but when the + * offset is user-supplied this might be wanted. + * + * @param bool $include + */ + public function setIncludeOffset( $include ) { + $this->mIncludeOffset = $include; + } + + /** + * Extract some useful data from the result object for use by + * the navigation bar, put it into $this + * + * @param bool $isFirst False if there are rows before those fetched (i.e. + * if a "previous" link would make sense) + * @param int $limit Exact query limit + * @param ResultWrapper $res + */ + function extractResultInfo( $isFirst, $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(); + $this->mPastTheEndIndex = $this->mPastTheEndRow->$indexColumn; + $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 = $isFirst; + $this->mLastShown = $firstIndex; + $this->mFirstShown = $lastIndex; + } else { + $this->mIsFirst = $isFirst; + $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 string $offset Index offset, inclusive + * @param int $limit Exact query limit + * @param bool $descending Query direction, false for ascending, true for descending + * @return ResultWrapper + */ + public function reallyDoQuery( $offset, $limit, $descending ) { + list( $tables, $fields, $conds, $fname, $options, $join_conds ) = + $this->buildQueryInfo( $offset, $limit, $descending ); + + return $this->mDb->select( $tables, $fields, $conds, $fname, $options, $join_conds ); + } + + /** + * Build variables to use by the database wrapper. + * + * @param string $offset Index offset, inclusive + * @param int $limit Exact query limit + * @param bool $descending Query direction, false for ascending, true for descending + * @return array + */ + protected function buildQueryInfo( $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(); + $sortColumns = array_merge( array( $this->mIndexField ), $this->mExtraSortFields ); + if ( $descending ) { + $options['ORDER BY'] = $sortColumns; + $operator = $this->mIncludeOffset ? '>=' : '>'; + } else { + $orderBy = array(); + foreach ( $sortColumns as $col ) { + $orderBy[] = $col . ' DESC'; + } + $options['ORDER BY'] = $orderBy; + $operator = $this->mIncludeOffset ? '<=' : '<'; + } + if ( $offset != '' ) { + $conds[] = $this->mIndexField . $operator . $this->mDb->addQuotes( $offset ); + } + $options['LIMIT'] = intval( $limit ); + return array( $tables, $fields, $conds, $fname, $options, $join_conds ); + } + + /** + * Pre-process results; useful for performing batch existence checks, etc. + * + * @param ResultWrapper $result + */ + protected function preprocessResults( $result ) { + } + + /** + * Get the formatted result list. Calls getStartBody(), formatRow() and + * getEndBody(), concatenates the results and returns them. + * + * @return string + */ + public function getBody() { + if ( !$this->mQueryDone ) { + $this->doQuery(); + } + + if ( $this->mResult->numRows() ) { + # Do any special query batches before display + $this->doBatchLookups(); + } + + # 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 string $text Text displayed on the link + * @param array $query Associative array of parameter to be in the query string + * @param string $type Link type used to create additional attributes, like "rel", "class" or + * "title". Valid values (non-exhaustive list): 'first', 'last', 'prev', 'next', 'asc', 'desc'. + * @return string HTML fragment + */ + function makeLink( $text, array $query = null, $type = null ) { + if ( $query === null ) { + return $text; + } + + $attrs = array(); + if ( in_array( $type, array( 'prev', 'next' ) ) ) { + $attrs['rel'] = $type; + } + + if ( in_array( $type, array( 'asc', 'desc' ) ) ) { + $attrs['title'] = wfMessage( $type == 'asc' ? 'sort-ascending' : 'sort-descending' )->text(); + } + + if ( $type ) { + $attrs['class'] = "mw-{$type}link"; + } + + + return Linker::linkKnown( + $this->getTitle(), + $text, + $attrs, + $query + $this->getDefaultQuery() + ); + } + + /** + * Called from getBody(), before getStartBody() is called and + * after doQuery() was called. This will be called only if there + * are rows in the result set. + * + * @return void + */ + protected function doBatchLookups() { + } + + /** + * 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 + */ + protected function getStartBody() { + return ''; + } + + /** + * Hook into getBody() for the end of the list + * + * @return string + */ + protected function getEndBody() { + return ''; + } + + /** + * Hook into getBody(), for the bit between the start and the + * end when there are no rows + * + * @return string + */ + protected function getEmptyBody() { + return ''; + } + + /** + * 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 array Associative array + */ + function getDefaultQuery() { + if ( !isset( $this->mDefaultQuery ) ) { + $this->mDefaultQuery = $this->getRequest()->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 $this->mDefaultQuery; + } + + /** + * Get the number of rows in the result set + * + * @return int + */ + function getNumRows() { + if ( !$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 ? null : $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' => $last + ); + } + + /** + * Returns whether to show the "navigation bar" + * + * @return bool + */ + function isNavigationBarShown() { + if ( !$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. + * + * @param array $linkTexts + * @param array $disabledTexts + * @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; + } + + function getLimitLinks() { + $links = array(); + if ( $this->mIsBackwards ) { + $offset = $this->mPastTheEndIndex; + } else { + $offset = $this->mOffset; + } + foreach ( $this->mLimitsShown as $limit ) { + $links[] = $this->makeLink( + $this->getLanguage()->formatNum( $limit ), + array( 'offset' => $offset, 'limit' => $limit ), + 'num' + ); + } + 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 array|stdClass $row 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. + * + * @return string|array + */ + abstract function getIndexField(); + + /** + * This function should be overridden to return the names of secondary columns + * to order by in addition to the column in getIndexField(). These fields will + * not be used in the pager offset or in any links for users. + * + * If getIndexField() returns an array of 'querykey' => 'indexfield' pairs then + * this must return a corresponding array of 'querykey' => array( fields...) pairs + * in order for a request with &count=querykey to use array( fields...) to sort. + * + * This is useful for pagers that GROUP BY a unique column (say page_id) + * and ORDER BY another (say page_len). Using GROUP BY and ORDER BY both on + * page_len,page_id avoids temp tables (given a page_len index). This would + * also work if page_id was non-unique but we had a page_len,page_id index. + * + * @return array + */ + protected function getExtraSortFields() { + return array(); + } + + /** + * Return the default sorting direction: DIR_ASCENDING or DIR_DESCENDING. + * 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 bool + */ + protected function getDefaultDirections() { + return IndexPager::DIR_ASCENDING; + } +} diff --git a/includes/pager/Pager.php b/includes/pager/Pager.php new file mode 100644 index 00000000..edec490c --- /dev/null +++ b/includes/pager/Pager.php @@ -0,0 +1,35 @@ +isNavigationBarShown() ) { + return ''; + } + + if ( isset( $this->mNavigationBar ) ) { + return $this->mNavigationBar; + } + + $linkTexts = array( + 'prev' => $this->msg( 'pager-newer-n' )->numParams( $this->mLimit )->escaped(), + 'next' => $this->msg( 'pager-older-n' )->numParams( $this->mLimit )->escaped(), + 'first' => $this->msg( 'histlast' )->escaped(), + 'last' => $this->msg( 'histfirst' )->escaped() + ); + + $pagingLinks = $this->getPagingLinks( $linkTexts ); + $limitLinks = $this->getLimitLinks(); + $limits = $this->getLanguage()->pipeList( $limitLinks ); + $firstLastLinks = $this->msg( 'parentheses' )->rawParams( "{$pagingLinks['first']}" . + $this->msg( 'pipe-separator' )->escaped() . + "{$pagingLinks['last']}" )->escaped(); + + $this->mNavigationBar = $firstLastLinks . ' ' . + $this->msg( 'viewprevnext' )->rawParams( + $pagingLinks['prev'], $pagingLinks['next'], $limits )->escaped(); + + return $this->mNavigationBar; + } + + function getDateCond( $year, $month ) { + $year = intval( $year ); + $month = intval( $month ); + + // Basic validity checks + $this->mYear = $year > 0 ? $year : false; + $this->mMonth = ( $month > 0 && $month < 13 ) ? $month : false; + + // Given an optional year and month, we need to generate a timestamp + // to use as "WHERE rev_timestamp <= result" + // Examples: year = 2006 equals < 20070101 (+000000) + // year=2005, month=1 equals < 20050201 + // year=2005, month=12 equals < 20060101 + if ( !$this->mYear && !$this->mMonth ) { + return; + } + + if ( $this->mYear ) { + $year = $this->mYear; + } else { + // If no year given, assume the current one + $timestamp = MWTimestamp::getInstance(); + $year = $timestamp->format( 'Y' ); + // If this month hasn't happened yet this year, go back to last year's month + if ( $this->mMonth > $timestamp->format( 'n' ) ) { + $year--; + } + } + + if ( $this->mMonth ) { + $month = $this->mMonth + 1; + // For December, we want January 1 of the next year + if ( $month > 12 ) { + $month = 1; + $year++; + } + } else { + // No month implies we want up to the end of the year in question + $month = 1; + $year++; + } + + // Y2K38 bug + if ( $year > 2032 ) { + $year = 2032; + } + + $ymd = (int)sprintf( "%04d%02d01", $year, $month ); + + if ( $ymd > 20320101 ) { + $ymd = 20320101; + } + + $this->mOffset = $this->mDb->timestamp( "${ymd}000000" ); + } +} diff --git a/includes/pager/TablePager.php b/includes/pager/TablePager.php new file mode 100644 index 00000000..80955398 --- /dev/null +++ b/includes/pager/TablePager.php @@ -0,0 +1,469 @@ +setContext( $context ); + } + + $this->mSort = $this->getRequest()->getText( 'sort' ); + if ( !array_key_exists( $this->mSort, $this->getFieldNames() ) + || !$this->isFieldSortable( $this->mSort ) + ) { + $this->mSort = $this->getDefaultSort(); + } + if ( $this->getRequest()->getBool( 'asc' ) ) { + $this->mDefaultDirection = IndexPager::DIR_ASCENDING; + } elseif ( $this->getRequest()->getBool( 'desc' ) ) { + $this->mDefaultDirection = IndexPager::DIR_DESCENDING; + } /* Else leave it at whatever the class default is */ + + parent::__construct(); + } + + /** + * Get the formatted result list. Calls getStartBody(), formatRow() and getEndBody(), concatenates + * the results and returns them. + * + * Also adds the required styles to our OutputPage object (this means that if context wasn't + * passed to constructor or otherwise set up, you will get a pager with missing styles). + * + * This method has been made 'final' in 1.24. There's no reason to override it, and if there exist + * any subclasses that do, the style loading hack is probably broken in them. Let's fail fast + * rather than mysteriously render things wrong. + * + * @deprecated since 1.24, use getBodyOutput() or getFullOutput() instead + * @return string + */ + final public function getBody() { + $this->getOutput()->addModuleStyles( $this->getModuleStyles() ); + return parent::getBody(); + } + + /** + * Get the formatted result list. + * + * Calls getBody() and getModuleStyles() and builds a ParserOutput object. (This is a bit hacky + * but works well.) + * + * @since 1.24 + * @return ParserOutput + */ + public function getBodyOutput() { + $body = parent::getBody(); + + $pout = new ParserOutput; + $pout->setText( $body ); + $pout->addModuleStyles( $this->getModuleStyles() ); + return $pout; + } + + /** + * Get the formatted result list, with navigation bars. + * + * Calls getBody(), getNavigationBar() and getModuleStyles() and + * builds a ParserOutput object. (This is a bit hacky but works well.) + * + * @since 1.24 + * @return ParserOutput + */ + public function getFullOutput() { + $navigation = $this->getNavigationBar(); + $body = parent::getBody(); + + $pout = new ParserOutput; + $pout->setText( $navigation . $body . $navigation ); + $pout->addModuleStyles( $this->getModuleStyles() ); + return $pout; + } + + /** + * @protected + * @return string + */ + function getStartBody() { + $sortClass = $this->getSortHeaderClass(); + + $s = ''; + $fields = $this->getFieldNames(); + + // Make table header + foreach ( $fields as $field => $name ) { + if ( strval( $name ) == '' ) { + $s .= Html::rawElement( 'th', array(), ' ' ) . "\n"; + } elseif ( $this->isFieldSortable( $field ) ) { + $query = array( 'sort' => $field, 'limit' => $this->mLimit ); + $linkType = null; + $class = null; + + if ( $this->mSort == $field ) { + // The table is sorted by this field already, make a link to sort in the other direction + // We don't actually know in which direction other fields will be sorted by default… + if ( $this->mDefaultDirection == IndexPager::DIR_DESCENDING ) { + $linkType = 'asc'; + $class = "$sortClass TablePager_sort-descending"; + $query['asc'] = '1'; + $query['desc'] = ''; + } else { + $linkType = 'desc'; + $class = "$sortClass TablePager_sort-ascending"; + $query['asc'] = ''; + $query['desc'] = '1'; + } + } + + $link = $this->makeLink( htmlspecialchars( $name ), $query, $linkType ); + $s .= Html::rawElement( 'th', array( 'class' => $class ), $link ) . "\n"; + } else { + $s .= Html::element( 'th', array(), $name ) . "\n"; + } + } + + $tableClass = $this->getTableClass(); + $ret = Html::openElement( 'table', array( + 'class' => "mw-datatable $tableClass" ) + ); + $ret .= Html::rawElement( 'thead', array(), Html::rawElement( 'tr', array(), "\n" . $s . "\n" ) ); + $ret .= Html::openElement( 'tbody' ) . "\n"; + + return $ret; + } + + /** + * @protected + * @return string + */ + function getEndBody() { + return "\n"; + } + + /** + * @protected + * @return string + */ + function getEmptyBody() { + $colspan = count( $this->getFieldNames() ); + $msgEmpty = $this->msg( 'table_pager_empty' )->text(); + return Html::rawElement( 'tr', array(), + Html::element( 'td', array( 'colspan' => $colspan ), $msgEmpty ) ); + } + + /** + * @protected + * @param stdClass $row + * @return string HTML + */ + function formatRow( $row ) { + $this->mCurrentRow = $row; // In case formatValue etc need to know + $s = Html::openElement( 'tr', $this->getRowAttrs( $row ) ) . "\n"; + $fieldNames = $this->getFieldNames(); + + foreach ( $fieldNames as $field => $name ) { + $value = isset( $row->$field ) ? $row->$field : null; + $formatted = strval( $this->formatValue( $field, $value ) ); + + if ( $formatted == '' ) { + $formatted = ' '; + } + + $s .= Html::rawElement( 'td', $this->getCellAttrs( $field, $value ), $formatted ) . "\n"; + } + + $s .= Html::closeElement( 'tr' ) . "\n"; + + return $s; + } + + /** + * Get a class name to be applied to the given row. + * + * @protected + * + * @param object $row The database result row + * @return string + */ + function getRowClass( $row ) { + return ''; + } + + /** + * Get attributes to be applied to the given row. + * + * @protected + * + * @param object $row The database result row + * @return array Array of attribute => value + */ + 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 + * + * @protected + * + * @param string $field The column + * @param string $value The cell contents + * @return array Array of attr => value + */ + function getCellAttrs( $field, $value ) { + return array( 'class' => 'TablePager_col_' . $field ); + } + + /** + * @protected + * @return string + */ + function getIndexField() { + return $this->mSort; + } + + /** + * @protected + * @return string + */ + function getTableClass() { + return 'TablePager'; + } + + /** + * @protected + * @return string + */ + function getNavClass() { + return 'TablePager_nav'; + } + + /** + * @protected + * @return string + */ + function getSortHeaderClass() { + return 'TablePager_sort'; + } + + /** + * A navigation bar with images + * @return string HTML + */ + public function getNavigationBar() { + if ( !$this->isNavigationBarShown() ) { + return ''; + } + + $labels = array( + 'first' => 'table_pager_first', + 'prev' => 'table_pager_prev', + 'next' => 'table_pager_next', + 'last' => 'table_pager_last', + ); + + $linkTexts = array(); + $disabledTexts = array(); + foreach ( $labels as $type => $label ) { + $msgLabel = $this->msg( $label )->escaped(); + $linkTexts[$type] = "
$msgLabel
"; + $disabledTexts[$type] = "
$msgLabel
"; + } + $links = $this->getPagingLinks( $linkTexts, $disabledTexts ); + + $s = Html::openElement( 'table', array( 'class' => $this->getNavClass() ) ); + $s .= Html::openElement( 'tr' ) . "\n"; + $width = 100 / count( $links ) . '%'; + foreach ( $labels as $type => $label ) { + // We want every cell to have the same width. We could use table-layout: fixed; in CSS, + // but it only works if we specify the width of a cell or the table and we don't want to. + // There is no better way. + $s .= Html::rawElement( 'td', + array( 'style' => "width: $width;", 'class' => "TablePager_nav-$type" ), + $links[$type] ) . "\n"; + } + $s .= Html::closeElement( 'tr' ) . Html::closeElement( 'table' ) . "\n"; + return $s; + } + + /** + * ResourceLoader modules that must be loaded to provide correct styling for this pager + * @since 1.24 + * @return string[] + */ + public function getModuleStyles() { + return array( 'mediawiki.pager.tablePager' ); + } + + /** + * Get a "" element of limits. + * This can be passed directly to XmlSelect::addOptions(). + * + * @since 1.22 + * @return array + */ + public function getLimitSelectList() { + # 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 ); + } + $ret = array(); + 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 = $this->getLanguage()->formatNum( $limit ); + } else { + $limit = $key; + $text = $value; + } + $ret[$text] = $limit; + } + return $ret; + } + + /** + * Get \ 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. + * + * @param array $blacklist Parameters from the request query which should not be resubmitted + * @return string HTML fragment + */ + function getHiddenFields( $blacklist = array() ) { + $blacklist = (array)$blacklist; + $query = $this->getRequest()->getQueryValues(); + foreach ( $blacklist as $name ) { + unset( $query[$name] ); + } + $s = ''; + foreach ( $query as $name => $value ) { + $s .= Html::hidden( $name, $value ) . "\n"; + } + return $s; + } + + /** + * Get a form containing a limit selection dropdown + * + * @return string HTML fragment + */ + function getLimitForm() { + return Html::rawElement( + 'form', + array( + 'method' => 'get', + 'action' => wfScript(), + ), + "\n" . $this->getLimitDropdown() + ) . "\n"; + } + + /** + * Gets a limit selection dropdown + * + * @return string + */ + function getLimitDropdown() { + # Make the select with some explanatory text + $msgSubmit = $this->msg( 'table_pager_limit_submit' )->escaped(); + + return $this->msg( 'table_pager_limit' ) + ->rawParams( $this->getLimitSelect() )->escaped() . + "\n\n" . + $this->getHiddenFields( array( 'limit' ) ); + } + + /** + * Return true if the named field should be sortable by the UI, false + * otherwise + * + * @param string $field + */ + abstract function isFieldSortable( $field ); + + /** + * Format a table cell. The return value should be HTML, but use an empty + * string not   for empty cells. Do not include the and . + * + * The current result row is available as $this->mCurrentRow, in case you + * need more context. + * + * @protected + * + * @param string $name The database field name + * @param string $value The value retrieved from the database + */ + abstract function formatValue( $name, $value ); + + /** + * The database field name used as a default sort order. + * + * @protected + * + * @return string + */ + 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. + * + * @return array + */ + abstract function getFieldNames(); +} -- cgit v1.2.2