mods/_standard/reading_list/add_resource_handout.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2008                                      */
   6 /* Written by Greg Gay, Joel Kronenberg & Chris Ridpath         */
   7 /* Inclusive Design Institute                                   */
   8 /* http://atutor.ca                                                                                             */
   9 /*                                                              */
  10 /* This program is free software. You can redistribute it and/or*/
  11 /* modify it under the terms of the GNU General Public License  */
  12 /* as published by the Free Software Foundation.                                */
  13 /****************************************************************/
  14 // $Id$
  15 define('AT_INCLUDE_PATH', '../../../include/');
  16 require (AT_INCLUDE_PATH.'vitals.inc.php');
  17 authenticate(AT_PRIV_READING_LIST);
  18
  19 // initial values for form
  20 $id = intval($_REQUEST['id']);
  21 $title = "";
  22 $author = "";
  23 $date = "";
  24 $comments = "";
  25 $page_return = $_GET['page_return'];
  26
  27 // check if user has submitted form
  28 if (isset($_POST['cancel'])) {
  29         $msg->addFeedback('CANCELLED');
  30
  31         header('Location: display_resources.php');
  32         exit;
  33 } else if (isset($_POST['submit'])) {
  34         $missing_fields = array();
  35
  36         if (trim($_POST['title']) == '') {
  37                 $missing_fields[] = _AT('title');
  38         }
  39         if (trim($_POST['author']) == '') {
  40                 $missing_fields[] = _AT('author');
  41         }
  42
  43         if ($missing_fields) {
  44                 $missing_fields = implode(', ', $missing_fields);
  45                 $msg->addError(array('EMPTY_FIELDS', $missing_fields));
  46         }
  47
  48
  49         if (!$msg->containsErrors()) {
  50                 $_POST['title'] = $addslashes(validate_length($_POST['title'], 255));
  51                 $_POST['author'] = $addslashes(validate_length($_POST['author'], 150));
  52                 $_POST['date']     = $addslashes($_POST['date']);
  53                 $_POST['comments'] = $addslashes(validate_length($_POST['comments'], 255));
  54
  55                 if ($id == '0'){ // creating a new handout resource
  56                         $sql = "INSERT INTO ".TABLE_PREFIX."external_resources VALUES (NULL, $_SESSION[course_id],
  57                         ".RL_TYPE_HANDOUT.",
  58                         '$_POST[title]',
  59                         '$_POST[author]',
  60                         '',
  61                         '$_POST[date]',
  62                         '$_POST[comments]',
  63                         '',
  64                         '')";
  65                         $result = mysql_query($sql,$db);
  66
  67                         // index to new handout resource
  68                         $id_new = mysql_insert_id($db);
  69
  70                         $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
  71                 } else { // modifying an existing handout resource
  72
  73                         $sql = "UPDATE ".TABLE_PREFIX."external_resources SET title='$_POST[title]', author='$_POST[author]', date='$_POST[date]', comments='$_POST[comments]' WHERE resource_id='$id' AND course_id=$_SESSION[course_id]";
  74
  75                         $result = mysql_query($sql,$db);
  76
  77                         // index to handout resource
  78                         $id_new = $id;
  79
  80                         $msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
  81                 }
  82
  83                 if (trim($_POST['page_return']) != ''){
  84                         header('Location: '. $_POST['page_return']. '?existingbook='. $id_new);
  85                 } else {
  86                         header('Location: index_instructor.php');
  87                 }
  88                 exit;
  89         } else { // submission contained an error, update form values for redisplay
  90                 $title       = $stripslashes($_POST['title']);
  91                 $author      = $stripslashes($_POST['author']);
  92                 $date        = $stripslashes($_POST['date']);
  93                 $comments    = $stripslashes($_POST['comments']);
  94                 $page_return = $stripslashes($_POST['page_return']);
  95         }
  96 }
  97
  98 // is user modifying an existing handout resource?
  99 if ($id && !isset($_POST['submit'])){
 100         // yes, get resource from database
 101         $id = intval($_GET['id']);
 102
 103         $sql = "SELECT * FROM ".TABLE_PREFIX."external_resources WHERE course_id=$_SESSION[course_id] AND resource_id=$id";
 104         $result = mysql_query($sql, $db);
 105         if ($row = mysql_fetch_assoc($result)){
 106                 $title    = AT_print($row['title'], 'input.text');
 107                 $author   = AT_print($row['author'], 'input.text');
 108                 $date     = AT_print($row['date'], 'input.text');
 109                 $comments = AT_print($row['comments'], 'input.text');
 110         }
 111         // change title of page to 'edit handout resource' (default is 'add handout resource')
 112         $_pages['mods/_standard/reading_list/add_resource_handout.php']['title_var'] = 'rl_edit_resource_handout';
 113 } else if ($id) {
 114         $_pages['mods/_standard/reading_list/add_resource_handout.php']['title_var'] = 'rl_edit_resource_handout';
 115 }
 116
 117 $onload = 'document.form.name.focus();';
 118
 119 require(AT_INCLUDE_PATH.'header.inc.php');
 120 ?>
 121
 122 <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" name="form">
 123 <input type="hidden" name="id" value="<?php echo $id; ?>" />
 124 <input type="hidden" name="page_return" value="<?php echo $page_return; ?>" />
 125
 126 <div class="input-form">
 127         <fieldset class="group_form"><legend class="group_form"><?php echo _AT('rl_add_resource_handout'); ?></legend>
 128         <div class="row">
 129                 <span class="required" title="<?php echo _AT('required_field'); ?>">*</span><label for="title"><?php  echo _AT('title'); ?></label><br />
 130                 <input type="text" name="title" size="35" id="title" value="<?php echo $title; ?>" />
 131         </div>
 132
 133         <div class="row">
 134                 <span class="required" title="<?php echo _AT('required_field'); ?>">*</span><label for="author"><?php  echo _AT('author'); ?></label><br />
 135                 <input type="text" name="author" size="25" id="author" value="<?php echo $author; ?>" />
 136         </div>
 137
 138         <div class="row">
 139                 <label for="date"><?php  echo _AT('rl_year_written'); ?></label><br />
 140                 <input type="text" name="date" size="6" id="date" value="<?php echo $date; ?>" />
 141         </div>
 142
 143         <div class="row">
 144                 <label for="comments"><?php  echo _AT('comment'); ?></label><br />
 145                 <textarea name="comments" cols="30" rows="2" id="comments"><?php echo $comments; ?></textarea>
 146         </div>
 147
 148         <div class="row buttons">
 149                 <input type="submit" name="submit" value="<?php echo _AT('save'); ?>" accesskey="s" />
 150                 <input type="submit" name="cancel" value="<?php echo _AT('cancel'); ?>" />
 151         </div>
 152         </fieldset>
 153 </div>
 154 </form>
 155
 156 <?php require(AT_INCLUDE_PATH.'footer.inc.php'); ?>