Improve pagination

system/includes/functions.php

@@ -1346,15 +1346,120 @@ function has_pagination($total, $perpage, $page = 1)
     if (!$total) {
         $total = count(get_post_unsorted());
     }
-	$totalPage = ceil($total / $perpage);
-	$number = 'Page '. $page . ' of ' . $totalPage;
+    $totalPage = ceil($total / $perpage);
+    $number = 'Page '. $page . ' of ' . $totalPage;
+    $pager = get_pagination($page, $total, $perpage, 2);
     return array(
         'prev' => $page > 1,
         'next' => $total > $page * $perpage,
-        'number' => $number
+        'pagenum' => $number,
+        'html' => $pager,
+        'items' => $total,
+        'perpage' => $perpage
     );
 }
 
+//function to return the pagination string
+function get_pagination($page = 1, $totalitems, $perpage = 10, $adjacents = 1, $pagestring = '?page=')
+{        
+    //defaults
+    if(!$adjacents) $adjacents = 1;
+    if(!$perpage) $perpage = 10;
+    if(!$page) $page = 1;
+    
+    //other vars
+    $prev = $page - 1;                                    //previous page is page - 1
+    $next = $page + 1;                                    //next page is page + 1
+    $lastpage = ceil($totalitems / $perpage);             //lastpage is = total items / items per page, rounded up.
+    $lpm1 = $lastpage - 1;                                //last page minus 1
+    
+    /* 
+        Now we apply our rules and draw the pagination object. 
+        We're actually saving the code to a variable in case we want to draw it more than once.
+    */
+    $pagination = '';
+    if($lastpage > 1)
+    {    
+        $pagination .= '<ul class="pagination">';
+
+        //previous button
+        if ($page > 1) 
+            $pagination .= '<li><a href="'. $pagestring . $prev .'">« Prev</a></li>';
+        else
+            $pagination .= '<li class="disabled"><span>« Prev</span></li>';    
+        
+        //pages    
+        if ($lastpage < 7 + ($adjacents * 2))    //not enough pages to bother breaking it up
+        {    
+            for ($counter = 1; $counter <= $lastpage; $counter++)
+            {
+                if ($counter == $page)
+                    $pagination .= '<li class="active"><span>'. $counter.'</span></li>';
+                else
+                    $pagination .= '<li><a href="'. $pagestring . $counter .'">'. $counter .'</a></li>';                    
+            }
+        }
+        elseif($lastpage >= 7 + ($adjacents * 2))    //enough pages to hide some
+        {
+            //close to beginning; only hide later pages
+            if($page < 1 + ($adjacents * 3))        
+            {
+                for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
+                {
+                    if ($counter == $page)
+                        $pagination .= '<li class="active"><span>'. $counter .'</span></li>';
+                    else
+                        $pagination .= '<li><a href="'. $pagestring . $counter .'">'. $counter .'</a></li>';                    
+                }
+                $pagination .= '<li class="disabled"><span>...</span></li>';
+                $pagination .= '<li><a href="'. $pagestring . $lpm1 .'">'. $lpm1 .'</a></li>';
+                $pagination .= '<li><a href="'. $pagestring . $lastpage .'">'. $lastpage .'</a></li>';        
+            }
+            //in middle; hide some front and some back
+            elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
+            {
+                $pagination .= '<li><a href="' . $pagestring .'1">1</a></li>';
+                $pagination .= '<li><a href="'. $pagestring .'2">2</a></li>';
+                $pagination .= '<li class="disabled"><span>...</span></li>';
+                for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
+                {
+                    if ($counter == $page)
+                        $pagination .= '<li class="active"><span>'. $counter .'</span></li>';
+                    else
+                        $pagination .= '<li><a href="'. $pagestring . $counter .'">'. $counter .'</a></li>';                    
+                }
+                $pagination .= '<li class="disabled"><span>...</span></li>';
+                $pagination .= '<li><a href="'. $pagestring . $lpm1 .'">'. $lpm1 .'</a></li>';
+                $pagination .= '<li><a href="'. $pagestring . $lastpage . '">'. $lastpage .'</a></li>';        
+            }
+            //close to end; only hide early pages
+            else
+            {
+                $pagination .= '<li><a href="'. $pagestring .'1">1</a></li>';
+                $pagination .= '<li><a href="'. $pagestring .'2">2</a></li>';
+                $pagination .= '<li class="disabled"><span>...</span></li>';
+                for ($counter = $lastpage - (1 + ($adjacents * 3)); $counter <= $lastpage; $counter++)
+                {
+                    if ($counter == $page)
+                        $pagination .= '<li class="active"><span>'. $counter .'</span></li>';
+                    else
+                        $pagination .= '<li><a href="'. $pagestring . $counter .'">'. $counter .'</a></li>';                    
+                }
+            }
+        }
+        
+        //next button
+        if ($page < $counter - 1) 
+            $pagination .= '<li><a href="'. $pagestring . $next .'">Next »</a></li>';
+        else
+            $pagination .= '<li class="disabled"><span>Next »</span></li>';
+        $pagination .= '</ul>';
+    }
+    
+    return $pagination;
+
+}
+
 // Get the meta description
 function get_description($string, $char = null)
 {
@@ -1823,7 +1928,7 @@ function not_found()
         'canonical' => site_url(),
         'breadcrumb' => '<a href="' . site_url() . '">' . config('breadcrumb.home') . '</a> &#187; 404 Not Found',
         'bodyclass' => 'error-404',
-        'is_notfound' => true,
+        'is_404' => true,
     ));
     die();
 }