noticestream.php 2.9 KB

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  1. <?php
  2. /**
  3. * StatusNet - the distributed open-source microblogging tool
  4. * Copyright (C) 2011, StatusNet, Inc.
  5. *
  6. * A stream of notices
  7. *
  8. * PHP version 5
  9. *
  10. * This program is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU Affero General Public License as published by
  12. * the Free Software Foundation, either version 3 of the License, or
  13. * (at your option) any later version.
  14. *
  15. * This program is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU Affero General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU Affero General Public License
  21. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  22. *
  23. * @category Stream
  24. * @package StatusNet
  25. * @author Evan Prodromou <evan@status.net>
  26. * @copyright 2011 StatusNet, Inc.
  27. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
  28. * @link http://status.net/
  29. */
  30. if (!defined('GNUSOCIAL')) { exit(1); }
  31. /**
  32. * Class for notice streams
  33. *
  34. * @category Stream
  35. * @package StatusNet
  36. * @author Evan Prodromou <evan@status.net>
  37. * @copyright 2011 StatusNet, Inc.
  38. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
  39. * @link http://status.net/
  40. */
  41. abstract class NoticeStream
  42. {
  43. protected $selectVerbs = array(ActivityVerb::POST => true,
  44. ActivityVerb::SHARE => true);
  45. public function __construct()
  46. {
  47. foreach ($this->selectVerbs as $key=>$val) {
  48. // to avoid database inconsistency issues we select both relative and absolute verbs
  49. $this->selectVerbs[ActivityUtils::resolveUri($key)] = $val;
  50. $this->selectVerbs[ActivityUtils::resolveUri($key, true)] = $val;
  51. }
  52. }
  53. abstract function getNoticeIds($offset, $limit, $since_id, $max_id);
  54. function getNotices($offset, $limit, $sinceId = null, $maxId = null)
  55. {
  56. $ids = $this->getNoticeIds($offset, $limit, $sinceId, $maxId);
  57. $notices = self::getStreamByIds($ids);
  58. return $notices;
  59. }
  60. static function getStreamByIds($ids)
  61. {
  62. return Notice::multiGet('id', $ids);
  63. }
  64. static function filterVerbs(Notice $notice, array $selectVerbs)
  65. {
  66. $filter = array_keys(array_filter($selectVerbs));
  67. if (!empty($filter)) {
  68. // include verbs in selectVerbs with values that equate to true
  69. $notice->whereAddIn('verb', $filter, $notice->columnType('verb'));
  70. }
  71. $filter = array_keys(array_filter($selectVerbs, function ($v) { return !$v; }));
  72. if (!empty($filter)) {
  73. // exclude verbs in selectVerbs with values that equate to false
  74. $notice->whereAddIn('!verb', $filter, $notice->columnType('verb'));
  75. }
  76. unset($filter);
  77. }
  78. }