learnpathList.class.php 4.7 KB

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  1. <?php //$id:$
  2. /**
  3. * File containing the declaration of the learnpathList class.
  4. * @package dokeos.learnpath
  5. * @author Yannick Warnier <ywarnier@beeznest.org>
  6. */
  7. /**
  8. * This class is only a learning path list container with several practical methods for sorting the list and
  9. * provide links to specific paths
  10. * @uses Database.lib.php to use the database
  11. * @uses learnpath.class.php to generate learnpath objects to get in the list
  12. */
  13. class learnpathList {
  14. var $list = array(); //holds a flat list of learnpaths data from the database
  15. var $ref_list = array(); //holds a list of references to the learnpaths objects (only filled by get_refs())
  16. var $alpha_list = array(); //holds a flat list of learnpaths sorted by alphabetical name order
  17. var $course_code;
  18. var $user_id;
  19. var $refs_active = false;
  20. /**
  21. * This method is the constructor for the learnpathList. It gets a list of available learning paths from
  22. * the database and creates the learnpath objects. This list depends on the user that is connected
  23. * (only displays) items if he has enough permissions to view them.
  24. * @param integer User ID
  25. * @param string Optional course code (otherwise we use api_get_course_id())
  26. * @param int Optional session id (otherwise we use api_get_session_id())
  27. * @return void
  28. */
  29. function learnpathList($user_id, $course_code='', $session_id = null) {
  30. if (!empty($course_code)){
  31. $course_info = api_get_course_info($course_code);
  32. $lp_table = Database::get_course_table(TABLE_LP_MAIN, $course_info['dbName']);
  33. } else{
  34. $course_code = api_get_course_id();
  35. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  36. }
  37. $this->course_code = $course_code;
  38. $this->user_id = $user_id;
  39. //condition for the session
  40. if (isset($session_id)) {
  41. $session_id = intval($session_id);
  42. } else {
  43. $session_id = api_get_session_id();
  44. }
  45. $condition_session = api_get_session_condition($session_id, false);
  46. $sql = "SELECT * FROM $lp_table $condition_session ORDER BY display_order ASC, name ASC";
  47. $res = Database::query($sql);
  48. $names = array();
  49. while ($row = Database::fetch_array($res))
  50. {
  51. //check if published
  52. $pub = '';
  53. $tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
  54. //use domesticate here instead of Database::escape_string because
  55. //it prevents ' to be slashed and the input (done by learnpath.class.php::toggle_visibility())
  56. //is done using domesticate()
  57. $myname = domesticate($row['name']);
  58. $mylink = 'newscorm/lp_controller.php?action=view&lp_id='.$row['id'];
  59. $sql2="SELECT * FROM $tbl_tool where (name='$myname' and image='scormbuilder.gif' and link LIKE '$mylink%')";
  60. //error_log('New LP - learnpathList::learnpathList - getting visibility - '.$sql2,0);
  61. $res2 = Database::query($sql2);
  62. if(Database::num_rows($res2)>0){
  63. $row2 = Database::fetch_array($res2);
  64. $pub = $row2['visibility'];
  65. }else{
  66. $pub = 'i';
  67. }
  68. //check if visible
  69. $vis = api_get_item_visibility(api_get_course_info($course_code),'learnpath',$row['id']);
  70. $this->list[$row['id']] = array(
  71. 'lp_type' => $row['lp_type'],
  72. 'lp_session' => $row['session_id'],
  73. 'lp_name' => stripslashes($row['name']),
  74. 'lp_desc' => stripslashes($row['description']),
  75. 'lp_path' => $row['path'],
  76. 'lp_view_mode' => $row['default_view_mod'],
  77. 'lp_force_commit' => $row['force_commit'],
  78. 'lp_maker' => stripslashes($row['content_maker']),
  79. 'lp_proximity' => $row['content_local'],
  80. 'lp_encoding' => $row['default_encoding'],
  81. 'lp_visibility' => $vis,
  82. 'lp_published' => $pub,
  83. 'lp_prevent_reinit' => $row['prevent_reinit'],
  84. 'lp_scorm_debug' => $row['debug'],
  85. 'lp_display_order' => $row['display_order'],
  86. 'lp_preview_image' => stripslashes($row['preview_image'])
  87. );
  88. $names[$row['name']]=$row['id'];
  89. }
  90. $this->alpha_list = asort($names);
  91. }
  92. /**
  93. * Gets references to learnpaths for all learnpaths IDs kept in the local list.
  94. * This applies a transformation internally on list and ref_list and returns a copy of the refs list
  95. * @return array List of references to learnpath objects
  96. */
  97. function get_refs(){
  98. foreach($this->list as $id => $dummy)
  99. {
  100. $this->ref_list[$id] = new learnpath($this->course_code,$id,$this->user_id);
  101. }
  102. $this->refs_active = true;
  103. return $this->ref_list;
  104. }
  105. /**
  106. * Gets a table of the different learnpaths we have at the moment
  107. * @return array Learnpath info as [lp_id] => ([lp_type]=> ..., [lp_name]=>...,[lp_desc]=>...,[lp_path]=>...)
  108. */
  109. function get_flat_list()
  110. {
  111. return $this->list;
  112. }
  113. }
  114. ?>