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   1  <?php
   2  // $Id: function.xoops_link.php 506 2006-05-26 23:10:37Z skalpa $

   3  //  ------------------------------------------------------------------------ //

   4  //                XOOPS - PHP Content Management System                      //

   5  //                    Copyright (c) 2000 XOOPS.org                           //

   6  //                       <http://www.xoops.org/>                             //

   7  //  ------------------------------------------------------------------------ //

   8  //  This program is free software; you can redistribute it and/or modify     //

   9  //  it under the terms of the GNU General Public License as published by     //

  10  //  the Free Software Foundation; either version 2 of the License, or        //

  11  //  (at your option) any later version.                                      //

  12  //                                                                           //

  13  //  You may not change or alter any portion of this comment or credits       //

  14  //  of supporting developers from this source code or any supporting         //

  15  //  source code which is considered copyrighted (c) material of the          //

  16  //  original comment or credit authors.                                      //

  17  //                                                                           //

  18  //  This program is distributed in the hope that it will be useful,          //

  19  //  but WITHOUT ANY WARRANTY; without even the implied warranty of           //

  20  //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //

  21  //  GNU General Public License for more details.                             //

  22  //                                                                           //

  23  //  You should have received a copy of the GNU General Public License        //

  24  //  along with this program; if not, write to the Free Software              //

  25  //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA //

  26  //  ------------------------------------------------------------------------ //

  27  
  28  /*

  29   * Smarty plugin

  30   * -------------------------------------------------------------

  31   * Type:     function

  32   * Name:     xoops_link

  33   * Version:  1.0

  34   * Author:     Skalpa Keo <skalpa@xoops.org>

  35   * Purpose:  format URL for linking to specific Xoops page

  36   * Input:    module    = module to link to (optional, default to current module)

  37   *           page    = page to link to (optional, default to current page)

  38   *           params    = query string parameters (optional, default to empty)

  39   *                    ex: urlparm1=,urlparm2,urlparm3=val3, etc.....

  40   *                        urlparm3 value will be set to val3

  41   *                        urlparm2 value will keep current one (no = sign)

  42   *                        urlparm1 value will be set to empty ( = sign, but nothing after)

  43   *

  44   *            I.e: The template called by 'index.php?cid=5' calls this function with

  45   *                {xoops_link page="viewcat.php" urlvars="cid,orderby=titleA"}>

  46   *            Then the generated URL will be:

  47   *                XOOPS_URL/modules/MODULENAME/viewcat.php?cid=5&orderby=titleA

  48   * -------------------------------------------------------------

  49   */
  50  
  51  function smarty_function_xoops_link($params, $smarty) {
  52      $urlstr='';
  53      if (isset($params['urlvars'])) {
  54          $szvars=explode( '&', $params['urlvars'] );
  55          $vars=array();
  56          // Split the string making an array from the ('name','value') pairs

  57          foreach ($szvars as $szvar) {
  58              $pos=strpos($szvar,'=');
  59              if ( $pos != false ) {            // If a value is specified, use it
  60                  $vars[] = array( 'name' => substr($szvar,0,$pos), 'value' => substr($szvar,$pos+1) );
  61              } else {                        // Otherwise use current one (if any)
  62                  if ( isset($_POST[$szvar]) ) {
  63                      $vars[] = array( 'name' => $szvar, 'value' => $_POST[$szvar] );
  64                  } elseif ( isset($_GET[$szvar]) ) {
  65                      $vars[] = array( 'name' => $szvar, 'value' => $_GET[$szvar] );
  66                  }
  67              }
  68          }
  69          // Now reconstruct query string from specified variables

  70          foreach ($vars as $var) {
  71              $urlstr = "$urlstr&{$var['name']}={$var['value']}";
  72          }
  73          if ( strlen($urlstr) > 0 ) {
  74              $urlstr = '?' . substr( $urlstr, 1 );
  75          }
  76      }
  77  
  78      // Get default module/page from current ones if necessary

  79      $module='';
  80      $page='';
  81      if ( !isset($params['module']) ) {
  82          if ( isset($GLOBALS['xoopsModule']) && is_object($GLOBALS['xoopsModule']) ) {
  83              $module = $GLOBALS['xoopsModule']->getVar('dirname');
  84          }
  85      } else {
  86          $module = $params['module'];
  87      }
  88      if ( !isset($params['page']) ) {
  89          $cur = $_SERVER['PHP_SELF'];
  90          $page = substr( $cur, strrpos( $cur, '/' ) + 1 );
  91      } else {
  92          $page = $params['page'];
  93      }
  94      // Now, return entire link URL :-)

  95      if ( empty($module) ) {
  96          echo XOOPS_URL . "/$page" . $urlstr;
  97      } else {
  98          echo XOOPS_URL . "/modules/$module/$page" . $urlstr;
  99      }
 100  }
 101  
 102  ?>