diff options
Diffstat (limited to 'Html/classes/class.paginator.php')
| -rw-r--r-- | Html/classes/class.paginator.php | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/Html/classes/class.paginator.php b/Html/classes/class.paginator.php new file mode 100644 index 0000000..109c241 --- /dev/null +++ b/Html/classes/class.paginator.php @@ -0,0 +1,198 @@ +<?php +/* + * PHP Pagination Class + * + * @author David Carr - dave@daveismyname.com - http://www.daveismyname.com + * @version 1.0 + * @date October 20, 2012 + */ +class Paginator{ + + /** + * set the number of items per page. + * + * @var numeric + */ + private $_perPage; + + /** + * set get parameter for fetching the page number + * + * @var string + */ + private $_instance; + + /** + * sets the page number. + * + * @var numeric + */ + private $_page; + + /** + * set the limit for the data source + * + * @var string + */ + private $_limit; + + /** + * set the total number of records/items. + * + * @var numeric + */ + private $_totalRows = 0; + + + + /** + * __construct + * + * pass values when class is istantiated + * + * @param numeric $_perPage sets the number of iteems per page + * @param numeric $_instance sets the instance for the GET parameter + */ + public function __construct($perPage,$instance){ + $this->_instance = $instance; + $this->_perPage = $perPage; + $this->set_instance(); + } + + /** + * get_start + * + * creates the starting point for limiting the dataset + * @return numeric + */ + private function get_start(){ + return ($this->_page * $this->_perPage) - $this->_perPage; + } + + /** + * set_instance + * + * sets the instance parameter, if numeric value is 0 then set to 1 + * + * @var numeric + */ + private function set_instance(){ + $this->_page = (int) (!isset($_GET[$this->_instance]) ? 1 : $_GET[$this->_instance]); + $this->_page = ($this->_page == 0 ? 1 : $this->_page); + } + + /** + * set_total + * + * collect a numberic value and assigns it to the totalRows + * + * @var numeric + */ + public function set_total($_totalRows){ + $this->_totalRows = $_totalRows; + } + + /** + * get_limit + * + * returns the limit for the data source, calling the get_start method and passing in the number of items perp page + * + * @return string + */ + public function get_limit(){ + return "LIMIT ".$this->get_start().",$this->_perPage"; + } + + /** + * page_links + * + * create the html links for navigating through the dataset + * + * @var sting $path optionally set the path for the link + * @var sting $ext optionally pass in extra parameters to the GET + * @return string returns the html menu + */ + public function page_links($path='?',$ext=null) + { + $adjacents = "2"; + $prev = $this->_page - 1; + $next = $this->_page + 1; + $lastpage = ceil($this->_totalRows/$this->_perPage); + $lpm1 = $lastpage - 1; + + $pagination = ""; + if($lastpage > 1) + { + $pagination .= "<div class='pagination'>"; + if ($this->_page > 1) + $pagination.= "<a href='".$path."$this->_instance=$prev"."$ext'>« précédent</a>"; + else + $pagination.= "<span class='disabled'>« précédent</span>"; + + if ($lastpage < 7 + ($adjacents * 2)) + { + for ($counter = 1; $counter <= $lastpage; $counter++) + { + if ($counter == $this->_page) + $pagination.= "<span class='current'>$counter</span>"; + else + $pagination.= "<a href='".$path."$this->_instance=$counter"."$ext'>$counter</a>"; + } + } + elseif($lastpage > 5 + ($adjacents * 2)) + { + if($this->_page < 1 + ($adjacents * 2)) + { + for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++) + { + if ($counter == $this->_page) + $pagination.= "<span class='current'>$counter</span>"; + else + $pagination.= "<a href='".$path."$this->_instance=$counter"."$ext'>$counter</a>"; + } + $pagination.= "..."; + $pagination.= "<a href='".$path."$this->_instance=$lpm1"."$ext'>$lpm1</a>"; + $pagination.= "<a href='".$path."$this->_instance=$lastpage"."$ext'>$lastpage</a>"; + } + elseif($lastpage - ($adjacents * 2) > $this->_page && $this->_page > ($adjacents * 2)) + { + $pagination.= "<a href='".$path."$this->_instance=1"."$ext'>1</a>"; + $pagination.= "<a href='".$path."$this->_instance=2"."$ext'>2</a>"; + $pagination.= "..."; + for ($counter = $this->_page - $adjacents; $counter <= $this->_page + $adjacents; $counter++) + { + if ($counter == $this->_page) + $pagination.= "<span class='current'>$counter</span>"; + else + $pagination.= "<a href='".$path."$this->_instance=$counter"."$ext'>$counter</a>"; + } + $pagination.= ".."; + $pagination.= "<a href='".$path."$this->_instance=$lpm1"."$ext'>$lpm1</a>"; + $pagination.= "<a href='".$path."$this->_instance=$lastpage"."$ext'>$lastpage</a>"; + } + else + { + $pagination.= "<a href='".$path."$this->_instance=1"."$ext'>1</a>"; + $pagination.= "<a href='".$path."$this->_instance=2"."$ext'>2</a>"; + $pagination.= ".."; + for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++) + { + if ($counter == $this->_page) + $pagination.= "<span class='current'>$counter</span>"; + else + $pagination.= "<a href='".$path."$this->_instance=$counter"."$ext'>$counter</a>"; + } + } + } + + if ($this->_page < $counter - 1) + $pagination.= "<a href='".$path."$this->_instance=$next"."$ext'>suivant »</a>"; + else + $pagination.= "<span class='disabled'>suivant »</span>"; + $pagination.= "</div>\n"; + } + + + return $pagination; + } +} |