+<?php
+/*
+ * PHP Pagination Class
+ *
+ * @author David Carr - dave@daveismyname.com - http://www.daveismyname.com
+ * @version 1.0
+ * @date October 20, 2013
+ */
+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'>« previous</a>";
+ else
+ $pagination.= "<span class='disabled'>« previous</span>";
+
+ if ($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'>next »</a>";
+ else
+ $pagination.= "<span class='disabled'>next »</span>";
+ $pagination.= "</div>\n";
+ }
+
+
+ return $pagination;
+ }
+}
projects / github / wallabag / wallabag.git / commitdiff
