Initial commit

archive/version_01/admin/includes/classes/split_page_results.php

@@ -0,0 +1,121 @@
+<?php
+//
+// +----------------------------------------------------------------------+
+// |zen-cart Open Source E-commerce                                       |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 2003 The zen-cart developers                           |
+// |                                                                      |
+// | http://www.zen-cart.com/index.php                                    |
+// |                                                                      |
+// | Portions Copyright (c) 2003 osCommerce                               |
+// +----------------------------------------------------------------------+
+// | This source file is subject to version 2.0 of the GPL license,       |
+// | that is bundled with this package in the file LICENSE, and is        |
+// | available through the world-wide-web at the following url:           |
+// | http://www.zen-cart.com/license/2_0.txt.                             |
+// | If you did not receive a copy of the zen-cart license and are unable |
+// | to obtain it through the world-wide-web, please send a note to       |
+// | license@zen-cart.com so we can mail you a copy immediately.          |
+// +----------------------------------------------------------------------+
+//  $Id: split_page_results.php 2839 2006-01-13 06:15:57Z drbyte $
+//
+
+  class splitPageResults {
+    function splitPageResults(&$current_page_number, $max_rows_per_page, &$sql_query, &$query_num_rows) {
+      global $db;
+      if (empty($current_page_number)) $current_page_number = 1;
+
+      $pos_to = strlen($sql_query);
+     $query_lower = strtolower($sql_query);
+     $pos_from = strpos($query_lower, ' from', 0);
+
+     $pos_group_by = strpos($query_lower, ' group by', $pos_from);
+     if (($pos_group_by < $pos_to) && ($pos_group_by != false)) $pos_to = $pos_group_by;
+
+     $pos_having = strpos($query_lower, ' having', $pos_from);
+     if (($pos_having < $pos_to) && ($pos_having != false)) $pos_to = $pos_having;
+
+     $pos_order_by = strpos($query_lower, ' order by', $pos_from);
+     if (($pos_order_by < $pos_to) && ($pos_order_by != false)) $pos_to = $pos_order_by;
+
+
+      $reviews_count = $db->Execute("select count(*) as total " .
+                                            substr($sql_query, $pos_from, ($pos_to - $pos_from)));
+
+      $query_num_rows = $reviews_count->fields['total'];
+
+      $num_pages = ceil($query_num_rows / $max_rows_per_page);
+      if ($current_page_number > $num_pages) {
+        $current_page_number = $num_pages;
+      }
+      $offset = ($max_rows_per_page * ($current_page_number - 1));
+
+// fix offset error on some versions
+      if ($offset < 0) { $offset = 0; }
+
+      $sql_query .= " limit " . $offset . ", " . $max_rows_per_page;
+    }
+
+    function display_links($query_numrows, $max_rows_per_page, $max_page_links, $current_page_number, $parameters = '', $page_name = 'page') {
+      global $PHP_SELF;
+
+      if ( zen_not_null($parameters) && (substr($parameters, -1) != '&') ) $parameters .= '&';
+
+// calculate number of pages needing links
+      $num_pages = ceil($query_numrows / $max_rows_per_page);
+
+      $pages_array = array();
+      for ($i=1; $i<=$num_pages; $i++) {
+        $pages_array[] = array('id' => $i, 'text' => $i);
+      }
+
+      if ($num_pages > 1) {
+        $display_links = zen_draw_form('pages', basename($PHP_SELF), '', 'get');
+
+        if ($current_page_number > 1) {
+          $display_links .= '<a href="' . zen_href_link(basename($PHP_SELF), $parameters . $page_name . '=' . ($current_page_number - 1), 'NONSSL') . '" class="splitPageLink">' . PREVNEXT_BUTTON_PREV . '</a>&nbsp;&nbsp;';
+        } else {
+          $display_links .= PREVNEXT_BUTTON_PREV . '&nbsp;&nbsp;';
+        }
+
+        $display_links .= sprintf(TEXT_RESULT_PAGE, zen_draw_pull_down_menu($page_name, $pages_array, $current_page_number, 'onChange="this.form.submit();"'), $num_pages);
+
+        if (($current_page_number < $num_pages) && ($num_pages != 1)) {
+          $display_links .= '&nbsp;&nbsp;<a href="' . zen_href_link(basename($PHP_SELF), $parameters . $page_name . '=' . ($current_page_number + 1), 'NONSSL') . '" class="splitPageLink">' . PREVNEXT_BUTTON_NEXT . '</a>';
+        } else {
+          $display_links .= '&nbsp;&nbsp;' . PREVNEXT_BUTTON_NEXT;
+        }
+
+        if ($parameters != '') {
+          if (substr($parameters, -1) == '&') $parameters = substr($parameters, 0, -1);
+          $pairs = explode('&', $parameters);
+          while (list(, $pair) = each($pairs)) {
+            list($key,$value) = explode('=', $pair);
+            $display_links .= zen_draw_hidden_field(rawurldecode($key), rawurldecode($value));
+          }
+        }
+
+        if (SID) $display_links .= zen_draw_hidden_field(zen_session_name(), zen_session_id());
+
+        $display_links .= '</form>';
+      } else {
+        $display_links = sprintf(TEXT_RESULT_PAGE, $num_pages, $num_pages);
+      }
+
+      return $display_links;
+    }
+
+    function display_count($query_numrows, $max_rows_per_page, $current_page_number, $text_output) {
+      $to_num = ($max_rows_per_page * $current_page_number);
+      if ($to_num > $query_numrows) $to_num = $query_numrows;
+      $from_num = ($max_rows_per_page * ($current_page_number - 1));
+      if ($to_num == 0) {
+        $from_num = 0;
+      } else {
+        $from_num++;
+      }
+
+      return sprintf($text_output, $from_num, $to_num, $query_numrows);
+    }
+  }
+?>