MediaWiki  master
MergeHistoryPager.php
Go to the documentation of this file.
1 <?php
26 
31 
32  public $mGroupByDate = true;
33 
35  public $mForm;
36 
38  public $mConds;
39 
41  private $articleID;
42 
44  private $maxTimestamp;
45 
47  private $linkBatchFactory;
48 
50  private $revisionStore;
51 
61  public function __construct(
62  SpecialMergeHistory $form,
63  LinkBatchFactory $linkBatchFactory,
64  ILoadBalancer $loadBalancer,
65  RevisionStore $revisionStore,
66  $conds,
68  PageIdentity $dest
69  ) {
70  $this->mForm = $form;
71  $this->mConds = $conds;
72  $this->articleID = $source->getId();
73 
75  $maxtimestamp = $dbr->selectField(
76  'revision',
77  'MIN(rev_timestamp)',
78  [ 'rev_page' => $dest->getId() ],
79  __METHOD__
80  );
81  $this->maxTimestamp = $maxtimestamp;
82 
83  // Set database before parent constructor to avoid setting it there with wfGetDB
84  $this->mDb = $dbr;
85  parent::__construct( $form->getContext() );
86  $this->linkBatchFactory = $linkBatchFactory;
87  $this->revisionStore = $revisionStore;
88  }
89 
90  protected function doBatchLookups() {
91  # Do a link batch query
92  $this->mResult->seek( 0 );
93  $batch = $this->linkBatchFactory->newLinkBatch();
94  # Give some pointers to make (last) links
95  $this->mForm->prevId = [];
96  $rev_id = null;
97  foreach ( $this->mResult as $row ) {
98  $batch->add( NS_USER, $row->rev_user_text );
99  $batch->add( NS_USER_TALK, $row->rev_user_text );
100 
101  if ( isset( $rev_id ) ) {
102  if ( $rev_id > $row->rev_id ) {
103  $this->mForm->prevId[$rev_id] = $row->rev_id;
104  } elseif ( $rev_id < $row->rev_id ) {
105  $this->mForm->prevId[$row->rev_id] = $rev_id;
106  }
107  }
108 
109  $rev_id = $row->rev_id;
110  }
111 
112  $batch->execute();
113  $this->mResult->seek( 0 );
114  }
115 
119  protected function getStartBody() {
120  return "<section class='mw-pager-body'>\n";
121  }
122 
126  protected function getEndBody() {
127  return "</section>\n";
128  }
129 
130  public function formatRow( $row ) {
131  return $this->mForm->formatRevisionRow( $row );
132  }
133 
134  public function getQueryInfo() {
135  $dbr = $this->getDatabase();
136  $conds = $this->mConds;
137  $conds['rev_page'] = $this->articleID;
138  $conds[] = "rev_timestamp < " . $dbr->addQuotes( $this->maxTimestamp );
139 
140  $queryInfo = $this->revisionStore->getQueryInfo( [ 'page', 'user' ] );
141  $queryInfo['conds'] = $conds;
142  $queryInfo['options'] = [];
143 
144  // rename the "joins" field to "join_conds" as expected by the base class.
145  $queryInfo['join_conds'] = $queryInfo['joins'];
146  unset( $queryInfo['joins'] );
147 
149  $queryInfo['tables'],
150  $queryInfo['fields'],
151  $queryInfo['conds'],
152  $queryInfo['join_conds'],
153  $queryInfo['options'],
154  ''
155  );
156 
157  return $queryInfo;
158  }
159 
160  public function getIndexField() {
161  return [ [ 'rev_timestamp', 'rev_id' ] ];
162  }
163 }
const NS_USER
Definition: Defines.php:66
const NS_USER_TALK
Definition: Defines.php:67
static modifyDisplayQuery(&$tables, &$fields, &$conds, &$join_conds, &$options, $filter_tag='', bool $exclude=false)
Applies all tags-related changes to a query.
Definition: ChangeTags.php:906
getDatabase()
Get the Database object in use.
Definition: IndexPager.php:249
Service for looking up page revisions.
SpecialMergeHistory $mForm
getStartBody()
Hook into getBody(), allows text to be inserted at the start.This will be called even if there are no...
doBatchLookups()
Called from getBody(), before getStartBody() is called and after doQuery() was called.
formatRow( $row)
Returns an HTML string representing the result row $row.
getQueryInfo()
Provides all parameters needed for the main paged query.
getEndBody()
Hook into getBody() for the end of the list.@stable to overridestring
__construct(SpecialMergeHistory $form, LinkBatchFactory $linkBatchFactory, ILoadBalancer $loadBalancer, RevisionStore $revisionStore, $conds, PageIdentity $source, PageIdentity $dest)
getIndexField()
Returns the name of the index field.
IndexPager with a formatted navigation bar.
Special page allowing users with the appropriate permissions to merge article histories,...
getContext()
Gets the context this SpecialPage is executed in.
Interface for objects (potentially) representing an editable wiki page.
getId( $wikiId=self::LOCAL)
Returns the page ID.
Create and track the database connections and transactions for a given database cluster.
getConnectionRef( $i, $groups=[], $domain=false, $flags=0)
$source
const DB_REPLICA
Definition: defines.php:26