Re: Pager - return array rather than HTML..

doh :) Is it worth adding something like $data['page'][$i] = ($from == $offset) then i can do something like this... foreach($ret['page] as $k=>$v) { if ($v) { "<B>$k</B>" } else {

       "<a href = .......>$k</a>

} } Tomas V.V.Cox wrote:

Alan Knowles wrote:

Attached (hopefully) is a patch to return an array rather than HTML. I need the 'calculations' of pager, but not the HTML output.

Haven't you looked at DB_Pager? It does exactly that (and in the lastests versions it doesn't need the use of a database). Tomas V.V.Cox

It allows you to start it up something like this. $pager = new Pager(array(

           'totalItems' => $N,
           'perPage' => $options['perPage'],
           'returnType' => 'RAW',
           'currentPage' => $currentPage
       ));

list($number_start, $array, $number_end) = $pager->getLinks(); where $array is [1] => 0 [2] => 1 [3] => 0 [4] => 0 there is also a small change to urlencode the querystring - which may not be neccesary...... regards alan ------------------------------------------------------------------------ Index: Pager.php =================================================================== RCS file: /repository/pear/Pager/Pager.php,v retrieving revision 1.1 diff -u -r1.1 Pager.php

--- Pager.php   9 Feb 2002 22:46:47 -0000       1.1

+++ Pager.php 27 Jun 2002 12:36:48 -0000 @@ -22,6 +22,7 @@ * */ + class Pager {

    /**

@@ -52,13 +53,19 @@

    * Total number of items in the data
    * @var integer
    */
-    var $_totalItems;
+    var $_totalItems = 0;

    /**
    * Page data generated by this class
    * @var array
    */
    var $_pageData;
+    /**
+    * the return Type - default is HTML,
+    * otherwise an you get page numbers returned, and an associative array of pageids => isselected
+    * @var string
+    */
+    var $_returnType = 'HTML';

    /**
    * Constructor

@@ -68,12 +75,14 @@

    * @param $params An associative array of parameters This can contain:
    *                  currentPage   Current Page number (optional)
    *                  perPage       Items per page (optional)
-    *                  itemData      Data to page
+    *                  itemData      Data to page (optional)
+    *              or  totalItems    Total Number of items (optional)
+    *                  returnType    HTML or RAW (optional)
    */
    function pager($params = array())
    {
        global $HTTP_GET_VARS;

- +

        $this->_currentPage = max((int)@$HTTP_GET_VARS['pageID'], 1);
        $this->_perPage     = 10;
        $this->_itemData    = array();

@@ -81,8 +90,9 @@

        foreach ($params as $name => $value) {
            $this->{'_' . $name} = $value;
        }

-

-        $this->_totalItems = count($this->_itemData);
+        if (!$this->_totalItems) {
+            $this->_totalItems = count($this->_itemData);
+        }
    }

    /**

@@ -145,7 +155,7 @@

            $this->_generatePageData();
        }

-        if (isset($this->_pageData[$pageid])) {
+        if (isset($this->_totalItems)) {
            return array(($this->_perPage * ($pageid - 1)) + 1, min($this->_totalItems, $this->_perPage * $pageid));
        } else {
            return array(0,0);

@@ -214,6 +224,11 @@

    */
    function _generatePageData()
    {
+        if (!count($this->_itemData)) {
+            $this->_totalPages = ceil((float)$this->_totalItems / (float)$this->_perPage);
+            return;
+        }

+

        $this->_totalItems = count($this->_itemData);
        $this->_totalPages = ceil((float)$this->_totalItems / (float)$this->_perPage);
        $i = 1;

@@ -239,6 +254,7 @@

        global $HTTP_SERVER_VARS;

        // Sort out query string to prevent messy urls

+

        $querystring = array();
        if (!empty($HTTP_SERVER_VARS['QUERY_STRING'])) {
            $qs = explode('&', $HTTP_SERVER_VARS['QUERY_STRING']);

@@ -252,7 +268,7 @@

        }

        foreach ($qs as $name => $value) {
-            $querystring[] = $name . '=' . $value;
+            $querystring[] = $name . '=' . urlencode($value);
        }

        return $HTTP_SERVER_VARS['SCRIPT_NAME'] . '?' . implode('&', $querystring) . (!empty($querystring) ? '&' : '') . 'pageID=';

@@ -268,13 +284,15 @@

    function _getBackLink($url, $link = '<< Back')
    {
        // Back link

+

        if ($this->_currentPage > 1) {
-            $back = '<a href="' . $url . ($this->_currentPage - 1) . '">' . $link . '</a>';
-        } else {
-            $back = '';
+            if ($this->_returnType == 'HTML') {
+                return '<a href="' . $url . ($this->_currentPage - 1) . '">' . $link . '</a>';
+            }
+            return ($this->_currentPage - 1);
        }
+        return '';

-        return $back;
    }

    /**

@@ -289,7 +307,12 @@

        $params['itemData'] = range(1, max(1, $this->_totalPages));
        $pager =& new Pager($params);
        $links =  $pager->getPageData($pager->getPageIdByOffset($this->_currentPage));

-

+        if ($this->_returnType != 'HTML') {
+            foreach($links as $value) {
+                $ret[$value] = ($this->_currentPage == $value);
+            }
+            return $ret;
+        }
        for ($i=0; $i<count($links); $i++) {
            if ($links[$i] != $this->_currentPage) {
                $links[$i] = '<a href="' . $this->_getLinksUrl() . $links[$i] . '">' . $links[$i] . '</a>';

@@ -309,12 +332,16 @@

    function _getNextLink($url, $link = 'Next >>')
    {
        if ($this->_currentPage < $this->_totalPages) {
-            $next = '<a href="' . $url . ($this->_currentPage + 1) . '">' . $link . '</a>';
-        } else {
-            $next = '';
-        }
+            if ($this->_returnType == 'HTML') {
+                return  '<a href="' . $url . ($this->_currentPage + 1) . '">' . $link . '</a>';
+            }
+            return $this->_currentPage + 1;
+        }

+

+        return '';

+

-        return $next;

+

    }

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