mods/_standard/blogs/module.php

   1 <?php\r
   2 if (!defined('AT_INCLUDE_PATH')) { exit; }\r
   3 if (!isset($this) || (isset($this) && (strtolower(get_class($this)) != 'module'))) { exit(__FILE__ . ' is not a Module'); }\r
   4 \r
   5 define('BLOGS_GROUP', 1);\r
   6 \r
   7 define('BLOGS_AUTH_NONE',  0);\r
   8 define('BLOGS_AUTH_READ',  1);\r
   9 define('BLOGS_AUTH_WRITE', 2); \r
  10 define('BLOGS_AUTH_RW',    3); // to save time\r
  11 \r
  12 \r
  13 // if this module is to be made available to students on the Home or Main Navigation\r
  14 $_group_tool = $_student_tool = 'blogs/index.php';\r
  15 \r
  16 $_pages['blogs/index.php']['title_var'] = 'blogs';\r
  17 $_pages['blogs/index.php']['img']       = 'images/home-blogs.gif';\r
  18 \r
  19 $_pages['blogs/edit_post.php?ot='.BLOGS_GROUP.SEP.'oid='.$_REQUEST['oid'].SEP.'id='.$_REQUEST['id']]['title_var'] = 'edit';\r
  20 \r
  21 $_pages['blogs/edit_post.php']['title_var']   = 'edit';\r
  22 $_pages['blogs/edit_post.php']['parent']      = 'blogs/post.php?ot='.BLOGS_GROUP.SEP.'oid='.$_REQUEST['oid'].SEP.'id='.$_REQUEST['id'];\r
  23 \r
  24 $_pages['blogs/delete_post.php?ot='.BLOGS_GROUP.SEP.'oid='.$_REQUEST['oid'].SEP.'id='.$_REQUEST['id']]['title_var'] = 'delete';\r
  25 $_pages['blogs/delete_post.php']['title_var'] = 'delete';\r
  26 \r
  27 $_pages['blogs/delete_comment.php']['title_var'] = 'delete_comment';\r
  28 \r
  29 \r
  30 function blogs_get_group_url($group_id) {\r
  31         return 'blogs/view.php?ot='.BLOGS_GROUP.SEP.'oid='.$group_id;\r
  32 }\r
  33 \r
  34 /**\r
  35  * given an owner_type and owner_id\r
  36  * returns false if user cannot read or write to this workspace\r
  37  * returns BLOGS_AUTH_READ if the user can read\r
  38  * returns BLOGS_AUTH_WRITE if the user can write\r
  39  */\r
  40 function blogs_authenticate($owner_type, $owner_id) {\r
  41         // ensure that this group is in the course\r
  42         if ($owner_type == BLOGS_GROUP) {\r
  43                 if (isset($_SESSION['groups'][$owner_id])) {\r
  44                         return BLOGS_AUTH_RW;\r
  45                 }\r
  46 \r
  47                 global $db;\r
  48                 $sql = "SELECT type_id FROM ".TABLE_PREFIX."groups WHERE group_id=$owner_id";\r
  49                 $result = mysql_query($sql, $db);\r
  50                 if (!$row = mysql_fetch_assoc($result)) {\r
  51                         return BLOGS_AUTH_NONE;\r
  52                 }\r
  53 \r
  54                 $sql = "SELECT type_id FROM ".TABLE_PREFIX."groups_types WHERE type_id=$row[type_id] AND course_id=$_SESSION[course_id]";\r
  55                 $result = mysql_query($sql, $db);\r
  56                 if (!$row = mysql_fetch_assoc($result)) {\r
  57                         return BLOGS_AUTH_NONE;\r
  58                 }\r
  59 \r
  60                 return BLOGS_AUTH_READ;\r
  61         }\r
  62         return BLOGS_AUTH_NONE;\r
  63 }\r
  64 \r
  65 function blogs_get_blog_name($owner_type, $owner_id) {\r
  66         if ($owner_type == BLOGS_GROUP) {\r
  67                 // get group name\r
  68                 global $db;\r
  69 \r
  70                 $sql = "SELECT title FROM ".TABLE_PREFIX."groups WHERE group_id=$owner_id";\r
  71                 $result = mysql_query($sql, $db);\r
  72                 $row = mysql_fetch_assoc($result);\r
  73 \r
  74                 return $row['title'];\r
  75         }\r
  76 }\r
  77 ?>