pageSize = max(1, $page_size); return $this; } final public function getPageSize() { return $this->pageSize; } final public function setURI(PhutilURI $uri) { $this->uri = $uri; return $this; } final public function readFromRequest(AphrontRequest $request) { $this->uri = $request->getRequestURI(); $this->afterID = $request->getStr('after'); $this->beforeID = $request->getStr('before'); return $this; } final public function setAfterID($after_id) { $this->afterID = $after_id; return $this; } final public function getAfterID() { return $this->afterID; } final public function setBeforeID($before_id) { $this->beforeID = $before_id; return $this; } final public function getBeforeID() { return $this->beforeID; } final public function setNextPageID($next_page_id) { $this->nextPageID = $next_page_id; return $this; } final public function getNextPageID() { return $this->nextPageID; } final public function setPrevPageID($prev_page_id) { $this->prevPageID = $prev_page_id; return $this; } final public function getPrevPageID() { return $this->prevPageID; } final public function sliceResults(array $results) { if (count($results) > $this->getPageSize()) { $offset = ($this->beforeID ? count($results) - $this->getPageSize() : 0); $results = array_slice($results, $offset, $this->getPageSize(), true); } return $results; } public function render() { if (!$this->uri) { throw new Exception( "You must call setURI() before you can call render()."); } $links = array(); if ($this->beforeID || $this->afterID) { $links[] = phutil_render_tag( 'a', array( 'href' => $this->uri ->alter('before', null) ->alter('after', null), ), "\xC2\xAB First"); } if ($this->prevPageID) { $links[] = phutil_render_tag( 'a', array( 'href' => $this->uri ->alter('after', null) ->alter('before', $this->prevPageID), ), "\xE2\x80\xB9 Prev"); } if ($this->nextPageID) { $links[] = phutil_render_tag( 'a', array( 'href' => $this->uri ->alter('after', $this->nextPageID) ->alter('before', null), ), "Next \xE2\x80\xBA"); } return ''; } }