chat_functions.lib.php 4.0 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * @package chamilo.chat
  5. */
  6. /**
  7. * @param integer
  8. * @return void
  9. */
  10. function exit_of_chat($user_id) {
  11. $user_id = intval($user_id);
  12. $course_id = api_get_course_int_id();
  13. $list_course = array();
  14. $list_course = CourseManager::get_courses_list_by_user_id($user_id);
  15. $group_id = intval($_SESSION['id_group']);
  16. $session_id = intval($_SESSION['id_session']);
  17. $extra_condition = '';
  18. if (!empty($group_id)) {
  19. $extra_condition = " AND to_group_id = '$group_id'";
  20. } else {
  21. $extra_condition = api_get_session_condition($session_id);
  22. }
  23. $extra_condition.= " AND course_id = $course_id";
  24. foreach ($list_course as $courses) {
  25. $response = user_connected_in_chat($user_id);
  26. if ($response === true) {
  27. $tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
  28. $sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$user_id.$extra_condition;
  29. Database::query($sql);
  30. }
  31. }
  32. }
  33. /**
  34. * @author isaac flores paz
  35. * @param integer the user id
  36. * @param string the database name
  37. * @return boolean
  38. */
  39. function user_connected_in_chat ($user_id) {
  40. $tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
  41. $group_id = intval($_SESSION['id_group']);
  42. $session_id = intval($_SESSION['id_session']);
  43. $user_id = intval($user_id);
  44. $course_id = api_get_course_int_id();
  45. $extra_condition = '';
  46. if (!empty($group_id)) {
  47. $extra_condition = " AND to_group_id = '$group_id'";
  48. } else {
  49. $extra_condition = api_get_session_condition($session_id);
  50. }
  51. $sql = 'SELECT COUNT(*) AS count FROM '.$tbl_chat_connected .' c WHERE c_id = '.$course_id.' AND user_id='.$user_id.$extra_condition;
  52. $result = Database::query($sql);
  53. $count = Database::fetch_array($result,'ASSOC');
  54. return $count['count'] == 1;
  55. }
  56. /**
  57. * @param string $database_name (optional)
  58. * @return void
  59. */
  60. function disconnect_user_of_chat() {
  61. $list_info_user_in_chat = array();
  62. $course_id = api_get_course_int_id();
  63. $list_info_user_in_chat = users_list_in_chat();
  64. $course_id = api_get_course_int_id();
  65. $cd_date = date('Y-m-d',time());
  66. $cdate_h = date('H',time());
  67. $cdate_m = date('i',time());
  68. $cdate_s = date('s',time());
  69. $cd_count_time_seconds = $cdate_h*3600 + $cdate_m*60 + $cdate_s;
  70. if (is_array($list_info_user_in_chat) && count($list_info_user_in_chat) > 0 ) {
  71. foreach ($list_info_user_in_chat as $list_info_user) {
  72. $date_db_date = date('Y-m-d', strtotime($list_info_user['last_connection']));
  73. $date_db_h = date('H', strtotime($list_info_user['last_connection']));
  74. $date_db_m = date('i', strtotime($list_info_user['last_connection']));
  75. $date_db_s = date('s', strtotime($list_info_user['last_connection']));
  76. $date_count_time_seconds=$date_db_h*3600 + $date_db_m*60 + $date_db_s;
  77. if ($cd_date == $date_db_date) {
  78. if (($cd_count_time_seconds - $date_count_time_seconds) > 5) {
  79. $tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
  80. $sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE c_id = '.$course_id.' AND user_id ='.$list_info_user['user_id'];
  81. Database::query($sql);
  82. }
  83. }
  84. }
  85. }
  86. }
  87. /**
  88. * @param string $database_name (optional)
  89. * @return array user list in chat
  90. */
  91. function users_list_in_chat() {
  92. $list_users_in_chat = array();
  93. $tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
  94. $course_id = api_get_course_int_id();
  95. $group_id = intval($_SESSION['id_group']);
  96. $session_id = intval($_SESSION['id_session']);
  97. $extra_condition = '';
  98. if (!empty($group_id)) {
  99. $extra_condition = " WHERE to_group_id = '$group_id'";
  100. } else{
  101. $extra_condition = api_get_session_condition($session_id, false);
  102. }
  103. $extra_condition.= " AND c_id = $course_id ";
  104. $sql = 'SELECT user_id,last_connection FROM '.$tbl_chat_connected.$extra_condition;
  105. $result = Database::query($sql);
  106. while ($row = Database::fetch_array($result, 'ASSOC')) {
  107. $list_users_in_chat[] = $row;
  108. }
  109. return $list_users_in_chat;
  110. }