chat_functions.lib.php 3.9 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. $list_course = array();
  13. $list_course = CourseManager::get_courses_list_by_user_id($user_id);
  14. $group_id = intval($_SESSION['id_group']);
  15. $session_id = intval($_SESSION['id_session']);
  16. $extra_condition = '';
  17. if (!empty($group_id)) {
  18. $extra_condition = " AND to_group_id = '$group_id'";
  19. } else {
  20. $extra_condition = api_get_session_condition($session_id);
  21. }
  22. foreach ($list_course as $courses) {
  23. $response = user_connected_in_chat($user_id,$courses['db_name']);
  24. if ($response === true) {
  25. $tbl_chat_connected = Database::get_course_chat_connected_table($courses['db_name']);
  26. $sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$user_id.$extra_condition;
  27. Database::query($sql);
  28. }
  29. }
  30. }
  31. /**
  32. * @author isaac flores paz
  33. * @param integer the user id
  34. * @param string the database name
  35. * @return boolean
  36. */
  37. function user_connected_in_chat ($user_id, $database_name) {
  38. $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
  39. $group_id = intval($_SESSION['id_group']);
  40. $session_id = intval($_SESSION['id_session']);
  41. $user_id = intval($user_id);
  42. $extra_condition = '';
  43. if (!empty($group_id)) {
  44. $extra_condition = " AND to_group_id = '$group_id'";
  45. } else {
  46. $extra_condition = api_get_session_condition($session_id);
  47. }
  48. $sql = 'SELECT COUNT(*) AS count FROM '.$tbl_chat_connected .' c WHERE user_id='.$user_id.$extra_condition;
  49. $result = Database::query($sql);
  50. $count = Database::fetch_array($result,'ASSOC');
  51. return $count['count'] == 1;
  52. }
  53. /**
  54. * @param string $database_name (optional)
  55. * @return void
  56. */
  57. function disconnect_user_of_chat($database_name = '') {
  58. $list_info_user_in_chat = array();
  59. if (!empty($database_name)) {
  60. $list_info_user_in_chat = users_list_in_chat($database_name);
  61. } else {
  62. $list_info_user_in_chat = users_list_in_chat();
  63. }
  64. $cd_date = date('Y-m-d',time());
  65. $cdate_h = date('H',time());
  66. $cdate_m = date('i',time());
  67. $cdate_s = date('s',time());
  68. $cd_count_time_seconds = $cdate_h*3600 + $cdate_m*60 + $cdate_s;
  69. if (is_array($list_info_user_in_chat) && count($list_info_user_in_chat) > 0 ) {
  70. foreach ($list_info_user_in_chat as $list_info_user) {
  71. $date_db_date = date('Y-m-d', strtotime($list_info_user['last_connection']));
  72. $date_db_h = date('H', strtotime($list_info_user['last_connection']));
  73. $date_db_m = date('i', strtotime($list_info_user['last_connection']));
  74. $date_db_s = date('s', strtotime($list_info_user['last_connection']));
  75. $date_count_time_seconds=$date_db_h*3600 + $date_db_m*60 + $date_db_s;
  76. if ($cd_date == $date_db_date) {
  77. if (($cd_count_time_seconds - $date_count_time_seconds) > 5) {
  78. $tbl_chat_connected = Database::get_course_chat_connected_table();
  79. if (!empty($database_name)) {
  80. $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
  81. }
  82. $sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$list_info_user['user_id'];
  83. Database::query($sql);
  84. }
  85. }
  86. }
  87. }
  88. }
  89. /**
  90. * @param string $database_name (optional)
  91. * @return array user list in chat
  92. */
  93. function users_list_in_chat ($database_name = '') {
  94. $list_users_in_chat = array();
  95. $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
  96. $group_id = intval($_SESSION['id_group']);
  97. $session_id = intval($_SESSION['id_session']);
  98. $extra_condition = '';
  99. if (!empty($group_id)) {
  100. $extra_condition = " WHERE to_group_id = '$group_id'";
  101. } else{
  102. $extra_condition = api_get_session_condition($session_id, false);
  103. }
  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. }