tagnoticestream.php 3.4 KB

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  1. <?php
  2. /**
  3. * StatusNet - the distributed open-source microblogging tool
  4. * Copyright (C) 2011, StatusNet, Inc.
  5. *
  6. * Stream of notices with a given tag
  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. * Stream of notices with a given tag
  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. class TagNoticeStream extends ScopingNoticeStream
  42. {
  43. function __construct($tag, Profile $scoped=null)
  44. {
  45. parent::__construct(new CachingNoticeStream(new RawTagNoticeStream($tag),
  46. 'notice_tag:notice_ids:' . Cache::keyize($tag)),
  47. $scoped);
  48. }
  49. }
  50. /**
  51. * Raw stream of notices with a given tag
  52. *
  53. * @category Stream
  54. * @package StatusNet
  55. * @author Evan Prodromou <evan@status.net>
  56. * @copyright 2011 StatusNet, Inc.
  57. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
  58. * @link http://status.net/
  59. */
  60. class RawTagNoticeStream extends NoticeStream
  61. {
  62. protected $tag;
  63. function __construct($tag)
  64. {
  65. $this->tag = $tag;
  66. }
  67. function getNoticeIds($offset, $limit, $since_id, $max_id)
  68. {
  69. $nt = new Notice_tag();
  70. $nt->tag = $this->tag;
  71. $nt->selectAdd();
  72. $nt->selectAdd('notice_id');
  73. Notice::addWhereSinceId($nt, $since_id, 'notice_id');
  74. Notice::addWhereMaxId($nt, $max_id, 'notice_id');
  75. if (!empty($this->selectVerbs)) {
  76. $nt->joinAdd(array('notice_id', 'notice:id'));
  77. $filter = array_keys(array_filter($this->selectVerbs));
  78. if (!empty($filter)) {
  79. // include verbs in selectVerbs with values that equate to true
  80. $nt->whereAddIn('notice.verb', $filter, 'string');
  81. }
  82. $filter = array_keys(array_filter($this->selectVerbs, function ($v) { return !$v; }));
  83. if (!empty($filter)) {
  84. // exclude verbs in selectVerbs with values that equate to false
  85. $nt->whereAddIn('!notice.verb', $filter, 'string');
  86. }
  87. }
  88. $nt->orderBy('notice.created DESC, notice_id DESC');
  89. if (!is_null($offset)) {
  90. $nt->limit($offset, $limit);
  91. }
  92. $ids = array();
  93. if ($nt->find()) {
  94. while ($nt->fetch()) {
  95. $ids[] = $nt->notice_id;
  96. }
  97. }
  98. return $ids;
  99. }
  100. }