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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | namespace MediaWiki\Revision; |
| 22 | |
| 23 | use Wikimedia\Rdbms\IReadableDatabase; |
| 24 | use Wikimedia\Rdbms\SelectQueryBuilder; |
| 25 | |
| 26 | /** |
| 27 | * Help and centralize querying revision table. |
| 28 | * |
| 29 | * @since 1.41 |
| 30 | */ |
| 31 | class RevisionSelectQueryBuilder extends SelectQueryBuilder { |
| 32 | |
| 33 | /** |
| 34 | * @internal use RevisionStore::newSelectQueryBuilder() instead. |
| 35 | * @param IReadableDatabase $db |
| 36 | */ |
| 37 | public function __construct( IReadableDatabase $db ) { |
| 38 | parent::__construct( $db ); |
| 39 | |
| 40 | $this->select( [ |
| 41 | 'rev_id', |
| 42 | 'rev_page', |
| 43 | 'rev_timestamp', |
| 44 | 'rev_minor_edit', |
| 45 | 'rev_deleted', |
| 46 | 'rev_len', |
| 47 | 'rev_parent_id', |
| 48 | 'rev_sha1', |
| 49 | 'rev_user' => 'actor_rev_user.actor_user', |
| 50 | 'rev_user_text' => 'actor_rev_user.actor_name', |
| 51 | 'rev_actor' => 'rev_actor' |
| 52 | ] ) |
| 53 | ->from( 'revision' ) |
| 54 | ->join( 'actor', 'actor_rev_user', 'actor_rev_user.actor_id = rev_actor' ); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Join the query with user table and add user_name field. |
| 59 | * |
| 60 | * @return $this |
| 61 | */ |
| 62 | public function joinUser() { |
| 63 | $this->field( 'user_name' ) |
| 64 | ->leftJoin( |
| 65 | 'user', |
| 66 | null, |
| 67 | [ "actor_rev_user.actor_user != 0", "user_id = actor_rev_user.actor_user" ] |
| 68 | ); |
| 69 | |
| 70 | return $this; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Join the query with page table and several fields to allow easier query. |
| 75 | * |
| 76 | * @return $this |
| 77 | */ |
| 78 | public function joinPage() { |
| 79 | $this->fields( [ |
| 80 | 'page_namespace', |
| 81 | 'page_title', |
| 82 | 'page_id', |
| 83 | 'page_latest', |
| 84 | 'page_is_redirect', |
| 85 | 'page_len', |
| 86 | ] ) |
| 87 | ->join( 'page', null, 'page_id = rev_page' ); |
| 88 | |
| 89 | return $this; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Join the query with comment table and several fields to allow easier query. |
| 94 | * |
| 95 | * @return $this |
| 96 | */ |
| 97 | public function joinComment() { |
| 98 | $this->fields( [ |
| 99 | 'rev_comment_text' => 'comment_rev_comment.comment_text', |
| 100 | 'rev_comment_data' => 'comment_rev_comment.comment_data', |
| 101 | 'rev_comment_cid' => 'comment_rev_comment.comment_id', |
| 102 | ] ); |
| 103 | $this->join( 'comment', "comment_rev_comment", 'comment_rev_comment.comment_id = rev_comment_id' ); |
| 104 | return $this; |
| 105 | } |
| 106 | } |