docs/mods/_standard/blogs/module.php

   1 <?php\r
   2 /************************************************************************/\r
   3 /* ATutor                                                                                                                               */\r
   4 /************************************************************************/\r
   5 /* Copyright (c) 2002-2010                                              */\r
   6 /* Inclusive Design Institute                                           */\r
   7 /* http://atutor.ca                                                                                                             */\r
   8 /*                                                                                                                                              */\r
   9 /* This program is free software. You can redistribute it and/or        */\r
  10 /* modify it under the terms of the GNU General Public License          */\r
  11 /* as published by the Free Software Foundation.                        */\r
  12 /************************************************************************/\r
  13 \r
  14 if (!defined('AT_INCLUDE_PATH')) { exit; }\r
  15 if (!isset($this) || (isset($this) && (strtolower(get_class($this)) != 'module'))) { exit(__FILE__ . ' is not a Module'); }\r
  16 \r
  17 define('BLOGS_GROUP', 1);\r
  18 \r
  19 define('BLOGS_AUTH_NONE',  0);\r
  20 define('BLOGS_AUTH_READ',  1);\r
  21 define('BLOGS_AUTH_WRITE', 2); \r
  22 define('BLOGS_AUTH_RW',    3); // to save time\r
  23 \r
  24 // if this module is to be made available to students on the Home or Main Navigation\r
  25 $_group_tool = $_student_tool = 'mods/_standard/blogs/index.php';\r
  26 \r
  27 $_pages['mods/_standard/blogs/index.php']['title_var'] = 'blogs';\r
  28 $_pages['mods/_standard/blogs/index.php']['img']       = 'images/home-blogs.png';\r
  29 $_pages['mods/_standard/blogs/index.php']['icon']      = 'images/home-blogs_sm.png';\r
  30 \r
  31 // module sublinks\r
  32 $this->_list['blogs'] = array('title_var'=>'blogs','file'=>'mods/_standard/blogs/sublinks.php');\r
  33 \r
  34 if (isset($_REQUEST['oid'])) {\r
  35         $_pages['mods/_standard/blogs/edit_post.php?ot='.BLOGS_GROUP.SEP.'oid='.$_REQUEST['oid'].SEP.'id='.$_REQUEST['id']]['title_var'] = 'edit';\r
  36         $_pages['mods/_standard/blogs/edit_post.php']['title_var']   = 'edit';\r
  37         $_pages['mods/_standard/blogs/edit_post.php']['parent']      = 'mods/_standard/blogs/post.php?ot='.BLOGS_GROUP.SEP.'oid='.$_REQUEST['oid'].SEP.'id='.$_REQUEST['id'];\r
  38 \r
  39         $_pages['mods/_standard/blogs/delete_post.php?ot='.BLOGS_GROUP.SEP.'oid='.$_REQUEST['oid'].SEP.'id='.$_REQUEST['id']]['title_var'] = 'delete';\r
  40         $_pages['mods/_standard/blogs/delete_post.php']['title_var'] = 'delete';\r
  41 }\r
  42 $_pages['mods/_standard/blogs/delete_comment.php']['title_var'] = 'delete';\r
  43 \r
  44 \r
  45 function blogs_get_group_url($group_id) {\r
  46         return 'mods/_standard/blogs/view.php?ot='.BLOGS_GROUP.SEP.'oid='.$group_id;\r
  47 }\r
  48 \r
  49 /**\r
  50  * given an owner_type and owner_id\r
  51  * returns false if user cannot read or write to this workspace\r
  52  * returns BLOGS_AUTH_READ if the user can read\r
  53  * returns BLOGS_AUTH_WRITE if the user can write\r
  54  */\r
  55 function blogs_authenticate($owner_type, $owner_id) {\r
  56         // ensure that this group is in the course\r
  57         if ($owner_type == BLOGS_GROUP) {\r
  58                 if (isset($_SESSION['groups'][$owner_id])) {\r
  59                         return BLOGS_AUTH_RW;\r
  60                 }\r
  61 \r
  62                 global $db;\r
  63                 $sql = "SELECT type_id FROM ".TABLE_PREFIX."groups WHERE group_id=$owner_id";\r
  64                 $result = mysql_query($sql, $db);\r
  65                 if (!$row = mysql_fetch_assoc($result)) {\r
  66                         return BLOGS_AUTH_NONE;\r
  67                 }\r
  68 \r
  69                 $sql = "SELECT type_id FROM ".TABLE_PREFIX."groups_types WHERE type_id=$row[type_id] AND course_id=$_SESSION[course_id]";\r
  70                 $result = mysql_query($sql, $db);\r
  71                 if (!$row = mysql_fetch_assoc($result)) {\r
  72                         return BLOGS_AUTH_NONE;\r
  73                 }\r
  74 \r
  75                 return BLOGS_AUTH_READ;\r
  76         }\r
  77         return BLOGS_AUTH_NONE;\r
  78 }\r
  79 \r
  80 function blogs_get_blog_name($owner_type, $owner_id) {\r
  81         if ($owner_type == BLOGS_GROUP) {\r
  82                 // get group name\r
  83                 global $db;\r
  84 \r
  85                 $sql = "SELECT title FROM ".TABLE_PREFIX."groups WHERE group_id=$owner_id";\r
  86                 $result = mysql_query($sql, $db);\r
  87                 $row = mysql_fetch_assoc($result);\r
  88 \r
  89                 return $row['title'];\r
  90         }\r
  91 }\r
  92 ?>