[Sommaire] [Imprimer]

   1  <?php
   2  /*
   3    $Id: split_page_results.php,v 1.13 2003/05/05 17:56:50 dgw_ Exp $
   4  
   5    osCommerce, Open Source E-Commerce Solutions
   6    http://www.oscommerce.com
   7  
   8    Copyright (c) 2002 osCommerce
   9  
  10    Released under the GNU General Public License
  11  */
  12  
  13    class splitPageResults {
  14      function splitPageResults(&$current_page_number, $max_rows_per_page, &$sql_query, &$query_num_rows) {
  15        if (empty($current_page_number)) $current_page_number = 1;
  16  
  17        $pos_to = strlen($sql_query);
  18        $pos_from = strpos($sql_query, ' from', 0);
  19  
  20        $pos_group_by = strpos($sql_query, ' group by', $pos_from);
  21        if (($pos_group_by < $pos_to) && ($pos_group_by != false)) $pos_to = $pos_group_by;
  22  
  23        $pos_having = strpos($sql_query, ' having', $pos_from);
  24        if (($pos_having < $pos_to) && ($pos_having != false)) $pos_to = $pos_having;
  25  
  26        $pos_order_by = strpos($sql_query, ' order by', $pos_from);
  27        if (($pos_order_by < $pos_to) && ($pos_order_by != false)) $pos_to = $pos_order_by;
  28  
  29        $reviews_count_query = tep_db_query("select count(*) as total " . substr($sql_query, $pos_from, ($pos_to - $pos_from)));
  30        $reviews_count = tep_db_fetch_array($reviews_count_query);
  31        $query_num_rows = $reviews_count['total'];
  32  
  33        $num_pages = ceil($query_num_rows / $max_rows_per_page);
  34        if ($current_page_number > $num_pages) {
  35          $current_page_number = $num_pages;
  36        }
  37        $offset = ($max_rows_per_page * ($current_page_number - 1));
  38        $sql_query .= " limit " . max($offset, 0) . ", " . $max_rows_per_page;
  39      }
  40  
  41      function display_links($query_numrows, $max_rows_per_page, $max_page_links, $current_page_number, $parameters = '', $page_name = 'page') {
  42        global $PHP_SELF;
  43  
  44        if ( tep_not_null($parameters) && (substr($parameters, -1) != '&') ) $parameters .= '&';
  45  
  46  // calculate number of pages needing links
  47        $num_pages = ceil($query_numrows / $max_rows_per_page);
  48  
  49        $pages_array = array();
  50        for ($i=1; $i<=$num_pages; $i++) {
  51          $pages_array[] = array('id' => $i, 'text' => $i);
  52        }
  53  
  54        if ($num_pages > 1) {
  55          $display_links = tep_draw_form('pages', basename($PHP_SELF), '', 'get');
  56  
  57          if ($current_page_number > 1) {
  58            $display_links .= '<a href="' . tep_href_link(basename($PHP_SELF), $parameters . $page_name . '=' . ($current_page_number - 1), 'NONSSL') . '" class="splitPageLink">' . PREVNEXT_BUTTON_PREV . '</a>&nbsp;&nbsp;';
  59          } else {
  60            $display_links .= PREVNEXT_BUTTON_PREV . '&nbsp;&nbsp;';
  61          }
  62  
  63          $display_links .= sprintf(TEXT_RESULT_PAGE, tep_draw_pull_down_menu($page_name, $pages_array, $current_page_number, 'onChange="this.form.submit();"'), $num_pages);
  64  
  65          if (($current_page_number < $num_pages) && ($num_pages != 1)) {
  66            $display_links .= '&nbsp;&nbsp;<a href="' . tep_href_link(basename($PHP_SELF), $parameters . $page_name . '=' . ($current_page_number + 1), 'NONSSL') . '" class="splitPageLink">' . PREVNEXT_BUTTON_NEXT . '</a>';
  67          } else {
  68            $display_links .= '&nbsp;&nbsp;' . PREVNEXT_BUTTON_NEXT;
  69          }
  70  
  71          if ($parameters != '') {
  72            if (substr($parameters, -1) == '&') $parameters = substr($parameters, 0, -1);
  73            $pairs = explode('&', $parameters);
  74            while (list(, $pair) = each($pairs)) {
  75              list($key,$value) = explode('=', $pair);
  76              $display_links .= tep_draw_hidden_field(rawurldecode($key), rawurldecode($value));
  77            }
  78          }
  79  
  80          if (SID) $display_links .= tep_draw_hidden_field(tep_session_name(), tep_session_id());
  81  
  82          $display_links .= '</form>';
  83        } else {
  84          $display_links = sprintf(TEXT_RESULT_PAGE, $num_pages, $num_pages);
  85        }
  86  
  87        return $display_links;
  88      }
  89  
  90      function display_count($query_numrows, $max_rows_per_page, $current_page_number, $text_output) {
  91        $to_num = ($max_rows_per_page * $current_page_number);
  92        if ($to_num > $query_numrows) $to_num = $query_numrows;
  93        $from_num = ($max_rows_per_page * ($current_page_number - 1));
  94        if ($to_num == 0) {
  95          $from_num = 0;
  96        } else {
  97          $from_num++;
  98        }
  99  
 100        return sprintf($text_output, $from_num, $to_num, $query_numrows);
 101      }
 102    }
 103  ?>