< Previous | 1 | 2 | 3 | 4 | 5 | 6 | Next > * * @package Am_Utils */ class Am_Paginator { // configuration protected $cssClass = 'pagination'; protected $countOnPage = 11; // number of links on the page protected $boundCount = 2; // number of fixed links in start and end 1,2 98,88 protected $pageVar; // current template protected $totalPages = 0, $currentPage = 0; protected $urlTemplate; public function __construct($totalPages, $currentPage=null, $urlTemplate=null, $pageVar = "p", Am_Request $request = null) { $this->pageVar = $pageVar; $this->totalPages = $totalPages; $this->currentPage = $currentPage === null ? $this->_detectCurrentPage() : $currentPage; $this->urlTemplate = $urlTemplate === null ? $this->_detectUrlTemplate($request) : $urlTemplate; } public function setPageVar($pageVar) { $this->pageVar = $pageVar; } public function getCurrentPage() { return $this->currentPage; } public function setCurrentPage($p) { $this->currentPage = (int)$p; } public function setPagesCount($p) { $this->countOnPage = (int)$p; } public function _detectCurrentPage() { return (int)Zend_Controller_Front::getInstance()->getRequest()->getParam($this->pageVar); } protected function _detectUrlTemplate($request = null) { if ($request === null) $request = Zend_Controller_Front::getInstance()->getRequest(); $uri = $request->assembleUrl(true); $uri = preg_replace('/([&?]'. preg_quote($this->pageVar, '/') .')=(?:\d+)?(&|$)/' , '\\1=###PAGE###\\2', $uri, 99, $replaced); if (!$replaced) { $insert = urlencode($this->pageVar).'=###PAGE###' ; $uri .= (strpos($uri, '?')!==false) ? ('&'. $insert) : ('?'.$insert); } return $uri; } public function getLink($p) { return htmlentities( str_replace('###PAGE###', (int)$p, $this->urlTemplate) , ENT_QUOTES, 'UTF-8'); } /** * @return array(int, int) - start and end page # */ public function getRange() { $current = $this->currentPage; $total = $this->totalPages; if ($current>($total-1)) $current = $total - 1; $countOnPage = $this->countOnPage - $this->boundCount*2; if ($countOnPage <= 0) throw new Exception("Wrong Am_Paginator configuration, $countOnPage <= 0 in ".__METHOD__); $lower = intval($current + 1 - floor($this->countOnPage/2) - $this->countOnPage%2); $upper = intval($current + floor($this->countOnPage/2)); if ($lower < 0) { $upper += -$lower; $lower = 0; } if ($upper > ($total - 1)) { $lower -= $upper - ($total - 1); if ($lower<0) $lower = 0; $upper = $total - 1; } $ret = range($lower, $upper); // replace first boundCount links for ($i=0; $i<$this->boundCount; $i++) { if (isset($ret[$i])) $ret[$i] = $i; } // replace last boundCount links for ($i=0; $i<$this->boundCount; $i++) { if (isset($ret[count($ret)-$i-1])) $ret[count($ret)-$i-1] = $total-$i-1; } sort($ret); return array_unique($ret); } public function render() { if ($this->totalPages<=1) return ""; $range = $this->getRange(); $next = min($this->currentPage + 1, $this->totalPages-1); $previous = max(0,$this->currentPage - 1); $out = sprintf('

'.PHP_EOL, $this->cssClass); // first link // previous link $disablePrev = $this->currentPage == $previous; $element = $disablePrev ? 'span' : 'a'; $out .= sprintf('<%s%s class="prev%s">%s', $element, ($disablePrev ? '' : sprintf(' href="%s"', $this->getLink($previous))), $disablePrev ? " current" : "", ___("Prev"), $element); $p = null; foreach ($range as $i) { if (($p !== null) && ($i-$p>1)) { $out .= "..."; } $out .= sprintf('%s', $this->getLink($i), $i == $this->currentPage ? ' class="current"' : "", $i + 1); $p = $i; } // next link $disableNext = $this->currentPage == $next; $element = $disableNext ? 'span' : 'a'; $out .= sprintf('<%s%s class="next%s">%s', $element, ($disableNext ? '' : sprintf(' href="%s"', $this->getLink($next))), $disableNext ? " current" : "", ___("Next"), $element); $out .= "

".PHP_EOL; return $out; } }