MediaWiki  master
RevisionStoreRecord.php
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1 <?php
23 namespace MediaWiki\Revision;
24 
28 use Title;
29 use User;
31 
40 
42  protected $mCurrent = false;
43 
56  function __construct(
57  Title $title,
58  UserIdentity $user,
59  CommentStoreComment $comment,
60  $row,
61  RevisionSlots $slots,
62  $dbDomain = false
63  ) {
64  parent::__construct( $title, $slots, $dbDomain );
65  Assert::parameterType( 'object', $row, '$row' );
66 
67  $this->mId = intval( $row->rev_id );
68  $this->mPageId = intval( $row->rev_page );
69  $this->mComment = $comment;
70 
71  $timestamp = wfTimestamp( TS_MW, $row->rev_timestamp );
72  Assert::parameter( is_string( $timestamp ), '$row->rev_timestamp', 'must be a valid timestamp' );
73 
74  $this->mUser = $user;
75  $this->mMinorEdit = boolval( $row->rev_minor_edit );
76  $this->mTimestamp = $timestamp;
77  $this->mDeleted = intval( $row->rev_deleted );
78 
79  // NOTE: rev_parent_id = 0 indicates that there is no parent revision, while null
80  // indicates that the parent revision is unknown. As per MW 1.31, the database schema
81  // allows rev_parent_id to be NULL.
82  $this->mParentId = isset( $row->rev_parent_id ) ? intval( $row->rev_parent_id ) : null;
83  $this->mSize = isset( $row->rev_len ) ? intval( $row->rev_len ) : null;
84  $this->mSha1 = !empty( $row->rev_sha1 ) ? $row->rev_sha1 : null;
85 
86  // NOTE: we must not call $this->mTitle->getLatestRevID() here, since the state of
87  // page_latest may be in limbo during revision creation. In that case, calling
88  // $this->mTitle->getLatestRevID() would cause a bad value to be cached in the Title
89  // object. During page creation, that bad value would be 0.
90  if ( isset( $row->page_latest ) ) {
91  $this->mCurrent = ( $row->rev_id == $row->page_latest );
92  }
93 
94  // sanity check
95  if (
96  $this->mPageId && $this->mTitle->exists()
97  && $this->mPageId !== $this->mTitle->getArticleID()
98  ) {
99  throw new InvalidArgumentException(
100  'The given Title does not belong to page ID ' . $this->mPageId .
101  ' but actually belongs to ' . $this->mTitle->getArticleID()
102  );
103  }
104  }
105 
111  public function isCurrent() {
112  return $this->mCurrent;
113  }
114 
122  public function isDeleted( $field ) {
123  if ( $this->isCurrent() && $field === self::DELETED_TEXT ) {
124  // Current revisions of pages cannot have the content hidden. Skipping this
125  // check is very useful for Parser as it fetches templates using newKnownCurrent().
126  // Calling getVisibility() in that case triggers a verification database query.
127  return false; // no need to check
128  }
129 
130  return parent::isDeleted( $field );
131  }
132 
133  protected function userCan( $field, User $user ) {
134  if ( $this->isCurrent() && $field === self::DELETED_TEXT ) {
135  // Current revisions of pages cannot have the content hidden. Skipping this
136  // check is very useful for Parser as it fetches templates using newKnownCurrent().
137  // Calling getVisibility() in that case triggers a verification database query.
138  return true; // no need to check
139  }
140 
141  return parent::userCan( $field, $user );
142  }
143 
147  public function getId() {
148  // overwritten just to add a guarantee to the contract
149  return parent::getId();
150  }
151 
156  public function getSize() {
157  // If length is null, calculate and remember it (potentially SLOW!).
158  // This is for compatibility with old database rows that don't have the field set.
159  if ( $this->mSize === null ) {
160  $this->mSize = $this->mSlots->computeSize();
161  }
162 
163  return $this->mSize;
164  }
165 
170  public function getSha1() {
171  // If hash is null, calculate it and remember (potentially SLOW!)
172  // This is for compatibility with old database rows that don't have the field set.
173  if ( $this->mSha1 === null ) {
174  $this->mSha1 = $this->mSlots->computeSha1();
175  }
176 
177  return $this->mSha1;
178  }
179 
186  public function getUser( $audience = self::FOR_PUBLIC, User $user = null ) {
187  // overwritten just to add a guarantee to the contract
188  return parent::getUser( $audience, $user );
189  }
190 
197  public function getComment( $audience = self::FOR_PUBLIC, User $user = null ) {
198  // overwritten just to add a guarantee to the contract
199  return parent::getComment( $audience, $user );
200  }
201 
205  public function getTimestamp() {
206  // overwritten just to add a guarantee to the contract
207  return parent::getTimestamp();
208  }
209 
215  public function isReadyForInsertion() {
216  return true;
217  }
218 
219 }
220 
225 class_alias( RevisionStoreRecord::class, 'MediaWiki\Storage\RevisionStoreRecord' );
A RevisionRecord representing an existing revision persisted in the revision table.
isDeleted( $field)
MCR migration note: this replaces Revision::isDeleted.
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
getUser( $audience=self::FOR_PUBLIC, User $user=null)
The User object encapsulates all of the user-specific settings (user_id, name, rights, email address, options, last login time).
Definition: User.php:51
Created by PhpStorm.
wfTimestamp( $outputtype=TS_UNIX, $ts=0)
Get a timestamp string in one of various formats.
isCurrent()
MCR migration note: this replaces Revision::isCurrent.
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not null
Definition: hooks.txt:767
namespace and then decline to actually register it file or subcat img or subcat $title
Definition: hooks.txt:912
getComment( $audience=self::FOR_PUBLIC, User $user=null)
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
you have access to all of the normal MediaWiki so you can get a DB use the etc For full docs on the Maintenance class
Definition: maintenance.txt:52
__construct(Title $title, UserIdentity $user, CommentStoreComment $comment, $row, RevisionSlots $slots, $dbDomain=false)
Page revision base class.
Value object representing the set of slots belonging to a revision.
return true to allow those checks to and false if checking is done & $user
Definition: hooks.txt:1454